Network Adapter User's Guide

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COMSPHERE

DUALFLOW DATA SERVICE

UNITS

USER’S GUIDE

Document No. 3615-A2-GB20-20

December 1996

Summary of content (135 pages)

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COMSPHERE DUALFLOW DATA SERVICE UNITS USER’S GUIDE Document No.
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COMSPHERE DualFlow Data Service Units COMSPHERE DualFlow Data Service Units Models 3615 and 3616 User’s Guide 3615-A2-GB20-20 3rd Edition (December 1996) Changes and enhancements to the product and to the information herein will be documented and issued as a new release to this manual. United States FCC Registration number: AW292J-61661-DD-N PSTN Ringer Equivalence number (REN): DBM option 0.7B Canada V.
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Safety Instructions Important Safety Instructions 1. Read and follow all warning notices and instructions marked on the product or included in the manual. 2. This product is intended to be used with a three-wire grounding type plug – a plug which has a grounding pin. This is a safety feature. Equipment grounding is vital to ensure safe operation. Do not defeat the purpose of the grounding type plug by modifying the plug or using an adaptor.
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COMSPHERE DualFlow Data Service Units Notices
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Safety Instructions If your DSU causes harm to the telephone network, the telephone company may discontinue your service temporarily. If possible, they will notify you in advance. But if advance notice is not practical, you will be notified as soon as possible. You will be advised of your right to file a complaint with the FCC. Your telephone company may make changes in its facilities, equipment, operations, or procedures that could affect the proper operation of your equipment.
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Table of Contents Preface About This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . How to Use This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reference Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii vii viii viii 1. About Your DualFlow DSU Overview . . . . . . . . . . . . . . . . . . . .
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COMSPHERE DualFlow Data Service Units 4. Operating the DualFlow DSU Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DCP and SDCP Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Status Branch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Backup Branch . . . . . . . . . . . .
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Table of Contents List of Figures Figure 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 3-1 3-2 3-3 3-4 3-5 4-1 4-2 4-3 D-1 D-2 D-3 D-4 D-5 D-6 E-1 E-2 E-3 3615-A2-GB20-20 Page Model 3615 DSU Hardware Switch Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model 3615 DSU Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model 3615 DSU Network Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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COMSPHERE DualFlow Data Service Units List of Tables Table 1-1 1-2 1-3 1-4 1-5 2-1 2-2 3-1 3-2 4-1 4-2 4-3 4-4 4-5 4-6 4-7 5-1 5-2 5-3 5-4 5-5 5-6 5-7 C-1 C-2 C-3 C-4 C-5 C-6 C-7 C-8 C-9 iv Page General Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DSU Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V.32 DBM Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Table of Contents Table D-1 D-2 D-3 D-4 D-5 D-6 3615-A2-GB20-20 Page Model 3615 – Digital (DDS and 4-Wire Switched 56 kbps) Network Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model 3615 – Dial (Analog and 2-Wire Switched 56 kbps) Network Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3600 Hubbing Device Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Preface About This Guide Chapter 3 This user’s guide provides the information needed to install and operate your COMSPHEREr Model 3615 or 3616 DualFlow data service unit (DSU), which is equipped with a dial backup module (DBM) – either a V.32 DBM, a 4-wire Switched 56 DBM, or a 2-wire Switched 56 DBM. Provides step-by-step instructions for installing your carrier-mounted Model 3616 DualFlow DSU. Chapter 4 Describes how to operate your DSU and its DBM.
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COMSPHERE DualFlow Data Service Units Related Documents Reference Documents Other product documentation includes the following: • AT&T Technical Reference 41458 3000-A2-GA31 COMSPHERE 3000 Series Carrier, Installation Manual • AT&T Technical Reference 61330 3000-A2-GB41 COMSPHERE –48 Vdc Central Office Power Unit, Installation Guide • Bell Canada DCTE Specifications 6700-A2-GB41 COMSPHERE 6700 Series Network Management System, User’s Guide, Security Manager Feature Supplement • AT&T Technical R
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About Your DualFlow DSU Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DBM Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V.32 DBMs . . . . . . . .
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COMSPHERE DualFlow Data Service Units • Diagnostic Control Panel control. The Model 3615 DSU is controlled from its diagnostic control panel (DCP). The diagnostic control panel for the Model 3616 DSU, called a shared diagnostic control panel (SDCP), is installed in the 3000 Series Carrier. Both control panels display information about the DSU on 2-line, 16-character liquid crystal display (LCD) and through light-emitting diode (LED) status indicators.
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About Your DualFlow DSU Switched 56 DBMs The Switched 56 DBM is attached to the DSU and offers dial backup capability through the Switched 56 kbps digital service. The Switched 56 DBM offers the following features: • Nondisruptive point-to-point connections. The DBM sends its line data to the EIA-232 port, which is not used for DDS data. DBM and DDS connections can be active at the same time. • Independent operation.
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COMSPHERE DualFlow Data Service Units Table 1-1 General Technical Specifications Specifications Criteria APPROVALS FCC Part 15 Class A digital device FCC Part 68 AW292J-61661-DD-N UL 3615 DualFlow DSU Listed UL 1950, second edition 3616 DualFlow DSU, 3000 Series Carrier Recognized Component UL 1950, second edition CSA Safety 3615 DualFlow DSU Certified CSA 22.2, No. 950-M89 3616 DualFlow DSU, 3000 Series Carrier Certified Component CSA 22.2, No. 950-M89 Emissions Bell Canada CSA 108.
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About Your DualFlow DSU Table 1-2 DSU Technical Specifications Specifications Criteria APPLICATION Full- or half-duplex data transmission via point-to-point DDS network, or local area data channel COMMUNICATION LINE Leased or private 4-wire DDS line DATA RATES Digital Services (DDS, ASDS) 2.4, 4.8, 9.6, 19.2, 38.4, 56, and 64CC kbps LADS 2.4, 4.8, 9.6, 19.2, 38.4, 56, and 64 kbps When timing is external (provided by the DTE), the DTE’s clock must be within these ranges.
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COMSPHERE DualFlow Data Service Units Table 1-3 V.32 DBM Technical Specifications Specifications Criteria RINGER EQUIVALENCE NUMBER (REN) DBM option 0.7B APPLICATION Full- or half-duplex data transmission via analog 2-wire dial network, point-to-point MODULATION AND FREQUENCY At 14.4 and 12 kbps: CCITT V.32bis, 1800 Hz At 4.8 and 9.6 kbps: CCITT V.32, 1800 Hz At 2.4 kbps: CCITT V.22bis, 2400 Hz COMMUNICATION LINE 2-wire analog (PSTN) line PORT RATES Async or Sync rates: 14.4, 12.0, 9.6, 9.2, 8.
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About Your DualFlow DSU Table 1-4 4-Wire Switched 56 DBM Technical Specifications Specifications Criteria APPLICATION Full- or half-duplex data transmission via 56 kbps switched services compatible with AT&T, MCIr, and US SPRINTr using 4-wire switched access to a local exchange carrier (LEC) or an inter-exchange carrier (IEC) COMMUNICATION LINE A dedicated 4-wire access or a local exchange carrier 4-wire switched access PORT RATES Async or Sync rates: 56, 48, 38.4, 32, 28.8, 19.2, 18.8, 18.0, 16.
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COMSPHERE DualFlow Data Service Units Table 1-5 2-Wire Switched 56 DBM Technical Specifications Specifications Criteria APPLICATION Full- or half-duplex data transmission via 56 kbps switched services compatible with AT&T, US SPRINTr, and MCIr using DataPatht 2-wire switched access to a local exchange carrier (LEC) or an interexchange carrier (IEC) COMMUNICATION LINE A dedicated 2-wire access or a local exchange carrier 2-wire switched access PORT RATES Async or Sync rates: 56, 48, 38.4, 32, 28.
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Installing the Model 3615 DualFlow DSU Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Before you Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . How to Change Hardware Straps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Where to Place the DSU .
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COMSPHERE DualFlow Data Service Units Contact your service representative if any of these items is missing from the shipping container, or to order the programmable dial interface cable. CAUTION The ac transformer contains a 3-wire grounding-type plug which has a grounding pin. This is a safety feature. Do not defeat the purpose of the grounding plug by modifying it or by using an adapter.
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Installing the Model 3615 DualFlow DSU FRONT BEZEL C O H SP M ER E 15 36 SNAP TABS SWITCH 1 HINGE TAB LOCATIONS 496-14499-01 Figure 2-1. Model 3615 DSU Hardware Switch Location Table 2-1 Model 3615 DSU Switch Settings Switch Position Switch Setting ON (default) Function Permissive V.32 DBM transmit output level of –9 dBm S1-1 S1-2 Off Programmable V.
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COMSPHERE DualFlow Data Service Units Where to Place the DSU Installing the DSU As mentioned earlier, the DSU must be placed within 6 feet of a dedicated grounded ac outlet that is protected by a circuit breaker. Before installing the DSU, label the circuit breaker that protects the ac wall outlet, and make sure that it is set to ON. To proceed with the installation: The distance between the DSU and its DTE must be within EIA-232-D/V.24 limits, or V.
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Installing the Model 3615 DualFlow DSU Power-Up Routine 7. Press the F1 key to SAVE the selected configuration. When power is applied, the DSU: The Save to screen appears. • Runs a Device Test on itself and the DBM. 8. Save the selected configuration to Activ (F1 key). During the tests, all indicators on the DCP light briefly and the message Power-Up Tests appears on the liquid crystal display (LCD). • Displays the results of each test momentarily as Pass, Fail, or Abrt.
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COMSPHERE DualFlow Data Service Units Connecting to the NMS Connecting to the Dial (or PSTN) Network A 3600 Hubbing Device is required to connect the control DSU to the 6700 or 6800 Series NMS. When connected to the NMS, the DSU can be controlled and configured from the NMS rather than from the DCP alone. If your DSU is equipped with a V.32 DBM, refer to Figure 2-4 as you follow these steps. . . Procedure 1. Plug either end of the dial (analog) interface cable into the DSU jack labeled BACKUP.
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Installing the Model 3615 DualFlow DSU Connecting to the Switched 56 kbps Network NOTE Before connecting the DSU to the Switched 56 kbps network, ensure that approved primary protectors have been installed on the circuit in accordance with Article 800 of the National Electric Code, NFPA 70, in the United States and Section 60 of the Canadian Electric Code, Part 1, in Canada.
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COMSPHERE DualFlow Data Service Units . Procedure 1. Plug the DDS network interface cable into the DSU jack labeled LINE. • U.S. – select either end of the cable • Canada – select the 8-pin end 2. Plug the other end of the cable into the modular jack (USOC RJ48S) provided by the circuit provider. If the remote DSU is also connected to the network, the DSU’s green OK indicator lights and the Alrm indicator goes off. The Health and Status screen no longer displays a No Signal message.
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Installing the Model 3615 DualFlow DSU Connecting the DSU to a Router 2. Connect the other end of the router’s V.35 cable to the router’s primary serial port. Tighten any holding screws. The DualFlow DSU transmits user data through its V.35 interface and diagnostic or user data through its EIA-232-D/V.24 interface. Cabling is based upon the preset configuration (SyBC, SyBT, or DiDg) selected in the Opts subbranch (Config branch). 3.
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COMSPHERE DualFlow Data Service Units Addressing the Unit Tributary DSU Addressing A unique address must be assigned to each control and tributary DSU in your network. You can assign an address within the range of 1 through 255. Tributary DSU addresses are user-definable. The control DSU accesses its tributary via an active backup connection by specifying the tributary’s address. The 6700 or 6800 Series NMS accesses the DSU via its network address.
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Installing the Model 3615 DualFlow DSU Verifying DBM Operation 11. Select Enter (F3). Please wait appears as the DBM runs the test. A backup connection must be established to verify that the switched network is functioning. Then, perform the Digital Test by selecting the DBM path. . 12. When Command Complete appears, press the key. 13. Select Displ (F1) to display the results of the test. Procedure 14. Press the 1. Select Local (F1). key to scroll through the test results. 2. Select Bckup (F2).
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COMSPHERE DualFlow Data Service Units Verifying the Network Other Tests Perform a Health and Status check on the DDS circuit to ensure that the network is functioning. The following lists the tests available on your DSU. Refer to the Test Branch section of Chapter 4 for further test information, as well as more detail on how to configure and operate the DSU. Refer to Appendix A to determine how best to access each test. . Procedure 1. Select Local (F1). 2. Select Stat (F1). • Device Test (Devic) 3.
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Installing the Model 3616 DualFlow DSU Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Before you Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . How to Change Hardware Straps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installing the DSU . . .
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COMSPHERE DualFlow Data Service Units Before You Begin The COMSPHERE 3000 Series Carrier should already be installed properly and be operational, with a functioning shared diagnostic control panel (SDCP). An SDCP (installed in the carrier) is required for installation and maintenance of the Model 3616 DSU. For installation information, see the COMSPHERE 3000 Series Carrier, Installation Manual.
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Installing the Model 3616 DualFlow DSU Figure 3-1. Model 3616 DSU Switch and Jumper Locations Table 3-1 Model 3616 DSU Switch Settings Switch Position Switch Setting ON (default) Function Permissive V.32 DBM transmit output level of –9 dBm S1-1 S1-2 Off Programmable V.32 DBM transmit level between –12 dBm and 0 dBm ON Frame ground (FG) connected to signal ground (SG) Off (default) FG connected to SG through 100 ohm resistor ON is to the rear as you face the front of the DSU.
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COMSPHERE DualFlow Data Service Units Table 3-2 Model 3616 DSU Jumper Straps Strap Designation State of Jumper Strap J12 Left Function V.35 Test Mode Indication: Left — Enables V.35 Test Mode Indication (Pins 1 and 2). This is the factory default. Right — Disables V.35 Test Mode Indication (Pins 2 and 3). J13 Left EIA-232-D Test Mode Indication: Left — Enables EIA-232-D Test Mode Indication (Pins 1 and 2). This is the factory default.
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Installing the Model 3616 DualFlow DSU Installing the DSU 2. Loosely fasten the screw attached to the rear connector plate, allowing for slight adjustment that may be needed when installing the DSU. Prior to installing the Model 3616 DualFlow DSU, install a rear connector plate onto the rear of the COMSPHERE 3000 Series Carrier (Figure 3-2). Only after this procedure can the DSU be installed or de-installed by simply removing it from the carrier. . 3.
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COMSPHERE DualFlow Data Service Units 4. Using a Phillips screwdriver, loosen the screw holding the circuit pack lock and rotate the lock to the open position (Figure 3-3). Open the latch. 5. At the front of the carrier, hold the DSU vertically with the latch on its faceplate in the open position. Then, insert the circuit card into the top and bottom circuit card guides for the slot that contains the rear connector plate.
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Installing the Model 3616 DualFlow DSU 8. The installed DSU is connected to the DDS network through the 50-pin connectors at the rear of the carrier. These interfaces are specified in the USOC RJ48T, and the pin assignments are shown in Appendix D. Proper network connection to the DDS facility or to the network channelterminating equipment must be made at the far end of the cable. 7. At the rear of the carrier, connect the appropriate router cable (EIA-232-D or V.35) to the rear connector plate.
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COMSPHERE DualFlow Data Service Units Power-Up Routine 7. Press the F1 key to SAVE the selected configuration. When power is applied, the DSU: The Save to screen is displayed. • Runs a Device Test on itself and the DBM. 8. Save the selected configuration to Activ (F1 key). During the tests, all indicators on the DCP light briefly and the message Power-Up Tests appears on the liquid crystal display (LCD). • Displays the results of each test momentarily as Pass, Fail, or Abrt.
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Installing the Model 3616 DualFlow DSU Connecting to the DDS (or LADS) Network For the 25-pin V.35 connector, use a V.35 Interconnect Cable (feature number 3000-F1-510). This cable provides the interface between the 25-pin V.35 D-type connector and a V.35 router cable. NOTE Appendix E provides connectivity diagrams should you need further assistance.
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COMSPHERE DualFlow Data Service Units Addressing the Unit Tributary DSU Addressing A unique address must be assigned to each control and tributary DSU in your network. You can assign an address within the range of 1 through 255. Tributary DSU addresses are user-definable. The control DSU accesses its tributary via an active backup connection by specifying the tributary’s address. The 6700 or 6800 Series NMS accesses the DSU via its network address.
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Installing the Model 3616 DualFlow DSU Verifying Operation and Testing Connections On the second line • Press the F1 key (↑) to increment the number that the cursor is on. Perform verification testing after any installation. • Press the F2 key (↓) to decrement the number.
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COMSPHERE DualFlow Data Service Units Verifying Network Addresses, the Network, and DBM Operation Establish a backup connection and perform a Digital Test over the backup connection to ensure that the switched network is functioning. Access the DSU’s identity (ID) subbranch for the tributary DSU to ensure that the DSU is properly addressed. Verify that no alarms appear in the Device Health and Status subbranches.
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Operating the DSU Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DCP and SDCP Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Menu Structure . . . . . . . . . . . . .
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COMSPHERE DualFlow Data Service Units Control Branch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transmitter Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Leads . . .
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Operating the DSU CARRIER SLOTS 1–16 SDU 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Select OK Alarm BckUp Test F1 EC F2 COMSPHERE 3000 F3 LCD DISPLAY SELECT KEY STATUS INDICATORS OK Alarm BckUp Test KEYPAD EC Status OK NETWORK/ DEVICE ALARM Alrm Test NETWORK DEVICE ALARM DIAL BACKUP TEST MODE Dial ERROR CORRECTION DIAL BACKUP TEST MODE 103 TXD 104 RXD 105 RTS 106 CTS 107 DSR 108 DTR 109 LSD Front Panel DTE STATUS INDICATORS SDCP INDICATOR Multirate DSU 3
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COMSPHERE DualFlow Data Service Units Keypad Top-Level Menu There are seven keys on the DCP of the standalone Model 3615, and eight on the SDCP for the carriermounted Model 3616 DSU. The additional key, the Select key, connects the SDCP to a specific DSU located in a specific carrier and slot within the carrier. The top-level menu is the starting point for all DSU operations. You can always return to this point from anywhere in the menu by pressing the key.
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Operating the DSU Health and Status The Health and Status (H/S) subbranch displays the health and status of the DSU, as well as the DBM. It automatically scans for DSU and line conditions that are not within normal limits. There are three types of Health and Status messages: • Devic (Device Health and Status) • Expan (Expanded Health and Status) • Subn (Subnetwork Health and Status) All alarm and status conditions are displayed for the specified DSU at the time the option is selected.
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COMSPHERE DualFlow Data Service Units . Circuit Quality Procedure Circuit Quality (CircQ) shows the level and quality of the signal being received from the network by the DBM. This subbranch is only available for a V.32 DBM. 1. Press the Identity key to display the information, one 3. Press the display (screen) at a time.
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Operating the DSU • Call Setup – Set call setup security level: Terminal Power None – No call setup security is required. (None is the default.) Terminal Power (TPwr) displays the status of the EIA-232 or V.35 interface (connector). The DSU checks the state of the RTS lead to determine when the DTE is ON to report the following: Password – Originating and receiving DBMs exchange passwords before the DBMs can complete the connection.
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COMSPHERE DualFlow Data Service Units • MultiCall – Select Disab. NOTE When enabled, instead of following the normal calling cycle, the DBM cycles through all dial strings contained in its Backup Directory until a call attempt is successful. Auto Backup and Auto Restor should not be enabled if DTRCallCon is enabled (set to Orig or Ansr). Do not enable MultiCall unless more than one telephone number is in the Backup Directory and each successive (i.e., 1, 2, 3, etc.
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Operating the DSU Manual Backup Abort You can control each step of a backup attempt by following one of these procedures. The Abort selection allows you to abort a test that is running. The DSU cannot run any other test until the test in progress is aborted. There are two types of selections to abort a test: Placing a Backup Call • Selective terminates whatever test is in progress at the local DSU. To place a backup call: . Procedure 1.
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COMSPHERE DualFlow Data Service Units DTE Loopback NOTE DTE Loopback (DTE) loops back the data path at the DTE interface without affecting operation of the other port. This loopback is used to verify that the DTE or router connection and the cable are good. To abort a loopback on the tributary DSU from the NMS, establish a dial connection with the control DSU, then issue a subnetwork abort command from the NMS to the control.
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Operating the DSU When a DBM (control or tributary) originates Remote Digital Loopback, both the originating DBM and the targeted DBM enter Test mode. No other test can be run at the originating DSU or the targeted DSU until the Remote Digital Loopback is aborted. During the test, the TXD, RXD, and RTS LED indicators show the states of the leads at the DTE interface if the DBM port leads are being displayed. At the conclusion of the test, the local DSU releases the remote DBM from Digital Loopback.
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COMSPHERE DualFlow Data Service Units Table 4-4 End-to-End Test Results Reported By 1 Results Information Displayed Time: Local and remote DBM Running test timer. (The Clr selection resets the timer to 0:00:00.) Tot Block: Local and remote DBM Number of blocks completed. (The Clr selection resets the counter to 0.) Rx Blk err: Local and remote DBM Number of incoming blocks with errors detected, indicating a fault in the incoming transmission path. (The Clr selection resets the counter to 0.
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Operating the DSU Lamp Test The Lamp Test is a local test of the status indicators (LEDs) and liquid crystal display (LCD) on the DSU’s control panel (both models). Any indicator that does not flash is not functional. Note that if all LEDs are functioning, all the indicators on the Model 3615 DCP are flashing steadily. In a COMSPHERE 3000 Series Carrier, the indicators on the SDCP remain ON.
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COMSPHERE DualFlow Data Service Units Poll List To view the configuration loaded: . Procedure The Poll List (PList) subbranch maintains or changes the DBM’s poll list. A control DBM’s poll list includes the tributary DSU and DBM one level downstream, and only a control can acquire a poll list. 1. Select an option set (e.g., DSU – F2 key). 2. Press the F1 key (Next) to scroll through each configuration option’s default (factory-loaded) setting. You can display, clear, change, or acquire a poll list.
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Operating the DSU Changing the Poll List To delete a network address (e.g., 3) from the poll list: To change the poll list (e.g., add network address 3): . . Procedure 1. Select Delet (F2). Procedure 1. Select Chang (F3). Poll List: Displ Clr F1 F2 Chng Poll List: Activ Delet Skip Chang F1 F2 F3 F3 2. Select Enter (F3). 2. Select Activ (F1). Address: Chng Poll List: Activ Delet Skip F1 F2 F1 F1 F2 F3 F3 3. Press the F1 key to increment network address 2.
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COMSPHERE DualFlow Data Service Units Acquiring the Poll List Directory A call must be established before this procedure can be performed (refer to the Backup Branch section earlier in this chapter). The DSU’s dial backup Directory (Dir) can store up to ten telephone numbers (dial strings) so the DBM can call other DBMs. Directory entries are numbered from 1 to 10. Each dial string in the directory can be up to 36 characters in length. Refer to Table 4-6 for numbers and characters that can be used.
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Operating the DSU Entering a Telephone Number For numeric screens, the following applies: For the following example, add a dial string (telephone number) to Backup Directory 1. The number to be entered is 555-1234. — Press the F1 key (↑ ) to increment the digit. — Press the F2 key (↓ ) to decrement the digit. or keys to move the — Press the blinking cursor one position to the left or right. To add or change a telephone number: .
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COMSPHERE DualFlow Data Service Units Phone 5. Select Load. Net Address appears, with the current network address displayed. (The DSU is shipped with its network address set to 254.) The local telephone number (Phone) feature stores the local DBM’s telephone number if a DBM is installed. Refer to Table 4-6 to see all available telephone number characters. 6. Change the DSU’s network address by moving the blinking cursor and incrementing or decrementing the digits (1 through 9).
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Operating the DSU Control Branch LEDs The Control (Ctrl) branch allows you to enable or disable the DSU’s transmitter, as well as the DBM’s, and to display or change the status of the general purpose external DTE leads. A DBM can be disabled if it is addressed from the Remote branch. The LEDs selection is only available from the Local branch. This selection allows you to monitor the port at any given time.
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COMSPHERE DualFlow Data Service Units Displaying External Leads Message Branch The Display (Displ) selection allows you to view the external lead states. When Display is selected, the External Leads status report appears showing the current status of the general-purpose external leads on the EIA-232-D/V.24 interface. The Messages (Msgs) branch of the top-level menu allows the DBM to receive messages from the NMS. It only appears when there is a message waiting.
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Operating the DSU Front Panel (DCP) Security If the security has not been set on the DCP before, the following appears: FP Access: ? ? ? Lock Unlock Save NOTE This page can be removed to prevent unauthorized persons from learning about the security access levels and their selection. F1 F2 F3 To select the security level: The Model 3615 diagnostic control panel (DCP) and Model 3616 shared diagnostic control panel (SDCP) have two levels of security access, as shown in Table 4-8. .
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Unit Configuration Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using the DCP to Set Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Editing Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Saving Configuration Options . . . . . . . . . . . . . . . . .
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COMSPHERE DualFlow Data Service Units Selection of Activ, Usr1, Usr2, Usr3, SyBC, SyBT, or DiDg from the Load from menu brings a complete set of configuration option into the working buffer. Once loaded, the Edit/Save submenu appears (shown below). Edit / Save: SAVE DSU F1 F2 5. Select the option set (e.g., DSU, DSUpt, DBM, etc.) to be edited. The first configuration option within that set appears. Page through each configuration option within the set as follows: a.
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Unit Configuration . Saving Configuration Options Procedure Press the DCP keys indicated by the shading. CAUTION V.35 Local Be extremely careful when saving configuration options to avoid saving them to the wrong location. F1 DSU 56 C Remot F2 F3 To save edited configuration options: . Local Mode: Stat Bckup Procedure 1. From any configuration option in any option set, press the key to return to the Edit/Save submenu. F1 F2 Test F3 2. Press the F1 key below SAVE. 3.
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COMSPHERE DualFlow Data Service Units Load from: DiDg Activ F1 F2 Edit / Save: SAVE DSU F1 F2 Edit / Save: SAVE DSU Remot F3 F1 F2 F1 F3 F2 F1 F3 5-4 F2 Usr1 F3 F2 F3 Save to: Usr1 Command Complete F1 F3 V.35 Local RTS Cntrl: DTE Next FrcOn DTE F1 F2 F3 Save to: Usr1 Please wait . . . RTS Cntrl: FrcOn Next FrcOn DTE F1 F2 Save to: Activ Remot DSUpt DTE Port: V.35 Next V.
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Unit Configuration Configuration Option Tables Understanding the Tables This section contains a table for each option set that can be found under the Configuration (Confg) branch, in the order in which it appears in the menu. Refer to the appropriate tables when configuring the DSU. Each configuration option is segmented into three sections: the option as it appears on the DCP, an explanation of the option, then the values that can be selected or set.
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COMSPHERE DualFlow Data Service Units Table 5-1 DSU Configuration Options Rate(Kbps): 56 Next 64CC 64L 56 38.4 19.2 9.6 4.8 2.4 Prev DSU Rate. Data rate (in kbps) on the digital circuit. Must be set to match the speed of the DDS circuit. Both the control and tributary DSUs must be set to the same value. 64CC — 64 kbps Clear Channel (on a 72 kbps circuit) with 3600 Series DSUs at both ends of the circuit. 64L — 64 kbps LADS operation.
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Unit Configuration Table 5-2 (1 of 3) DSU Port Configuration Options DTE Port: V.35 Next V.35 Prev DTE Port. Forces user data over the V.35 interface. V.35 — For all available rates at distances up to 1000 feet. RTS Cntrl: FrcOn Next FrcOn DTE Prev Request-to-Send Control. This configuration option determines how the DSU will function with respect to the RTS lead.
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COMSPHERE DualFlow Data Service Units Table 5-2 (2 of 3) DSU Port Configuration Options LSD Lead: Std Next Std Delay FrcOn Prev Line Signal Detect Lead. Controls behavior of the Line Signal Detect lead. Std — LSD lead goes Off in response to a control mode idle (CMI) signal from the DDS network or DDS failure. Delay — LSD does not go Off in response to a network alarm condition or CMI. LSD goes Off only after a successful backup connection is established.
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Unit Configuration Table 5-2 (3 of 3) DSU Port Configuration Options LL by DTE: Disab Next Enab Disab Prev Local Loopback by DTE. Controls using Pin L of the V.35 interface by the DTE to initiate a Local Loopback when the DSU is the active device. Whenever this lead is ON, the Local Loopback overrides any other diagnostic tests run by the network. Enab — The DTE forces the DSU into Local Loopback when the signal on Pin L is turned ON. Local Loopback ends when the signal is dropped.
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COMSPHERE DualFlow Data Service Units Table 5-3 (2 of 4) DBM Configuration Options TxClkSource: Int for a control DBM, RXC for a tributary DBM Next Int RXC Ext Prev Transmit Clock Source. Source of timing for the DBM. Only appears for a V.32 DBM. Int — Internal clock source. The local DBM provides the timing. This source is used primarily in point-to-point applications. RXC — Receive clock source. This source is used primarily in multipoint tributary applications. Ext — External clock source.
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Unit Configuration Table 5-3 (3 of 4) DBM Configuration Options Call Setup:None Next None Pswrd Cllbk Alarm Prev Dial Backup Call Setup. Establishes the security level on call setup attempts. The Password and Callback security selections use a proprietary password exchange to ensure that the DBM does not route line data to the DBM’s DTE interface. If security fails, the call is disconnected. These password exchanges only work between 3600 Series DBMs. None — No security.
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COMSPHERE DualFlow Data Service Units Table 5-3 (4 of 4) DBM Configuration Options Primary Core:No Next Yes No Prev DBM Primary Core. When enabled, the DSU is disabled and the DBM is enabled so that it functions as a V.32 DBM or Switched 56 DBM. Yes — Enables the Primary Core so the unit operates like a 3600 Series DBM-V, DBM-S, or DBM-D. No — Disables the Primary Core so that the DSU function is active. No is the factory-set (default) setting for a DualFlow DSU.
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Unit Configuration Table 5-4 (1 of 3) DBM Port Configuration Options DTE Port: 232 Next 232 V.35 Prev DTE Port. Selects which DTE port will be used for DBM data. This configuration option is forced to 232 (EIA-232) unless Primary Core is set to Yes. 232 — For the EIA-232-D connector, the maximum cable length from the DBM to the router is 34 feet with shielded cable and 68 feet with unshielded cable when operating at 56 kbps. V.35 — Only appears if Primary Core (DBM option set) is set to Yes.
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COMSPHERE DualFlow Data Service Units Table 5-4 (2 of 3) DBM Port Configuration Options DSR FrcOn: Enab Next Enab Disab Prev Data Set Ready Forced On. Provides the ability to override any other options controlling the Data Set Ready lead. Enab — DSR remains ON as long as the device is working regardless of tests and network alarms. Disab — DSR functions as an active lead reflecting various test and alarm conditions and other options.
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Unit Configuration Table 5-4 (3 of 3) DBM Port Configuration Options CCN by EL: Disab Next Enab Disab Prev Configuration Change Notification by External Leads. Controls using the general-purpose output leads to set a CCN event. This configuration option only has an effect if Ext Leads is set to ExtLd. Enab — Change in state of a general-purpose lead signals CCN to the NMS. Disab — General-purpose lead changes do not set a CCN event. DTR Alarm: Disab Next Enab Disab Prev Data Terminal Ready Alarm.
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COMSPHERE DualFlow Data Service Units Table 5-5 Diagnostic DBM Configuration Options Diag Type: Disr Next NonD Disr None Prev Diagnostic Type. Defines the diagnostic interaction between the control and tributary DBMs in Backup mode. It must be set consistently for all Dualflow DBMs on the same circuit. NonD — Nondisruptive Diagnostics. An in-band secondary channel transport is derived to carry diagnostics data between the control and the tributary DBMs. Disr — Disruptive Diagnostics.
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Unit Configuration Table 5-6 Diagnostic General Configuration Options Position: Cntrl for SyBC, Trib for DiDg and SyBT configurations Next Cntrl Trib Prev Network Position. Determines the DSU’s position in the network, and defines its test and diagnostic capabilities. Cntrl — Control Trib — Tributary RemoteDiag:Enhan Next V.54 Enhan Prev Remote Diagnostics. Determines the type of loopback message generated by a DBM. V.54 — The V.32 DBM generates a CCITT V.54 loopback sequence.
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COMSPHERE DualFlow Data Service Units Table 5-7 (1 of 2) Backup Configuration Options Auto Bckup:Disab Next Enab Disab Prev Automatic Backup. Controls automatic initiation of a call setup attempt upon failure of the DDS network, defined as detection of No Signal or Out-of-Service codes, or excessive bipolar violations. (Automatic dial attempts begin after the Network Time-out expires.) NOTE: The backup connection is made through the EIA-232 port.
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Unit Configuration Table 5-7 (2 of 2) Backup Configuration Options RestorTimOut: 5m Next Chang Prev Restoration Time-out. Length of time the DDS network must be back in service before automatic restoration is attempted. This configuration option only has an effect at a DSU configured with Automatic Restoration enabled. Chang — Calls up a data entry display for changing the current value, with a range of 1 to 60 minutes. TriesTimeOut:15m Next Chang Prev Call Attempts Time-out.
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DSU Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Top-Level Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Local/Remote Menu Subbranches . . . . . . . . .
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COMSPHERE DualFlow Data Service Units A-2 December 1996 3615-A2-GB20-20
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DSU Menu 3615-A2-GB20-20 December 1996 A-3
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COMSPHERE DualFlow Data Service Units Continued from Page A-1. If both DDS and dial connections have been made, then every 10 seconds the top-level menu screen alternates status information between the DDS and dial ports (V.35 for the DDS line and active DBM port for the dial line). • The Test branch provides extensive testing capabilities for the DSU; the DDS circuit; the DBM; and the backup circuit, if there is a backup call established. NOTE V.
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Configuration Worksheets B Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 Overview Instructions The Configuration Worksheet summarizes the DSU’s software configuration options and the selections that can be set for each.
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DualFlow DSU Configuration Worksheet (1 of 2) Date:_____________________________________________ Location:____________________________________________ Device:___________________________________________ Local Addr:__________________________________________ Serial No:_________________________________________ Tributary Network Addr: ________________________________ DSU Value DSU Port (V.35) Local Phone No: ( Value j )_____________________________ DBM Value Rate(Kbps) 64CC, 64L, 56, 38.4, 19.
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DualFlow DSU Configuration Worksheet (2 of 2) DBM Port (232) Value Diagnostic DBM Value Backup DTE Port 232, V.35 } Diag Type NonD, Disr, None Auto Bckup RTS Cntrl FrcOn, DTE 2nd Ch(bps) {{{ 100, 400, 800, 1200, 1600 Backup Dir CTS Cntrl Std, =RTS, FrcOn AntiStream LSD Lead (Chang) Disab (1 to 100 sec) Std, FrcOn DSR FrcOn DSR on Tst RespondRDL Position Cntrl, Trib RemoteDiag V.
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Status Indicators and Control Panel Messages Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Control Panel Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Format .
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COMSPHERE DualFlow Data Service Units Table C-1 DSU Status Indicators Label OK Color Green Description Health and status indicator: DSU operation is normal. (The DSU has not detected any of the faults listed under Alrm, below.) This indicator flashes two times per second if a message from the NMS is present. Alrm Red Health and status indicator: There is a fault in the local or remote DSU, DBM, or DDS facility, or there is a corrupted configuration.
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Status Indicators and Control Panel Messages Table C-2 SDCP Status Indicators Label OK Alrm Color Green Red Description Health and status indicator for the selected DSU; mirrors the OK indicator on the DSU faceplate. Health and status indicator for the selected DSU; mirrors the Alrm indicator on the DSU faceplate. BckUp Yellow Mirrors the BckUp LED on the selected DSU. Test Yellow Mirrors the Test indicator on the selected DSU.
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COMSPHERE DualFlow Data Service Units Table C-3 (1 of 3) Device Health and Status Messages Message Condition CMI Fac Alarm Facility Alarm on CMI (FacAlOnCMI) configuration option is enabled and control mode idle (CMI) is being received. Config Corrupt Configuration is corrupt. Reset all configuration options from one of the default (factory-loaded) option sets stored in the DiDg, SyBC, or SyBT area. DBM:Device Fail Internal failure is detected in the DBM. DBM:Disable DBM transmitter is disabled.
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Status Indicators and Control Panel Messages Table C-3 (2 of 3) Device Health and Status Messages Message Condition Dial Tone:Fail Dial tone test was enabled and test failed. DDS F: alarm Digital facility alarm; alarm is one of the following network alarms: BiplrViol Fac Alarm OutofServc No Signal — — — — Excessive Bipolar Violations Facility Alarm Out-of-Service condition No signal has been received DSU:Device Fail Internal failure in the DSU is detected. (Go to the Test branch for Device Test.
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COMSPHERE DualFlow Data Service Units Table C-3 (3 of 3) Device Health and Status Messages Message Condition Redun Fan Alarm Indicates a problem with the fan on the –48 Vdc Central Office Power Unit. Redun Pwr Alarm Indicates a problem with the power on the –48 Vdc Central Office Power Unit. Subnetwrk Alarm A major alarm was set Off by one of the devices in your subnetwork. Check the Subnetwork Health and Status report.
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Status Indicators and Control Panel Messages Table C-4 Expanded Health and Status Messages Message Condition Dial Attempt:nn The number (nn) of failures of dialing attempts since failure of private-line service. This message is cleared when the automatic backup process succeeds or the backup process is reset due to configuration option changes. When the maximum number of retries has been reached, Max appears. Drop:DTR Disc An established dialed connection fails because the DTR lead was turned Off.
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COMSPHERE DualFlow Data Service Units Table C-5 Subnetwork Health and Status Messages Message Condition Devic TDM/Flex only: Device Failure. One of the following major alarms is in effect: Configuration Corrupt Device Test Failure DialBU Dial mode. Indicates that the DBM is active. DialCN Dial Connect. Indicates that the DBM is in Standby mode. DialTn Dial Tone Test failure. Disab Indicates that the DSU or DBM is disabled. DTR DTE alarm. Data Terminal Ready lead is Off.
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Status Indicators and Control Panel Messages Progress Messages Table C-6 describes the command progress messages; Table C-7 describes the dial backup progress messages. Table C-6 Command Progress Messages Message Condition Please wait . . . Command is taking more than 2 seconds to complete. Command Complete Command has been completed. Command Failed Command was unable to be executed. Table C-7 Dial Backup Progress Messages Message Condition DBM:Answering DBM is answering an incoming call.
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COMSPHERE DualFlow Data Service Units Error Messages Table C-8 describes the command error messages; Table C-9 describes the dial backup error messages. Table C-8 Command Error Messages Message Conflict w/Envir Condition Command conflicts with a test in progress, or the configuration is inappropriate for this command, etc. Action 1. Check for a test in progress. 2. Either wait for the test to finish or abort the test. 3. If there is no test in progress, check configuration options.
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Status Indicators and Control Panel Messages Table C-9 (1 of 2) Dial Backup Error Messages Notify NMS 1 Condition Action DBM: Busy Yes Telephone line associated with remote DBM is busy. Try again. Try another number if possible, or investigate why the line is busy. DBM: Call Aborted No Call was aborted from the DCP. None DBM:Callbck Fail No There was a failure to connect on a callback attempt.
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COMSPHERE DualFlow Data Service Units Table C-9 (2 of 2) Dial Backup Error Messages Message Notify NMS 1 Condition Action DBM:No Ringing No DBM is not getting ringback from the other end. Look for line problems. If conditions are good and no problem is found, call telephone company and report the problem. DBM: NotConnected No Call attempt failed for unspecified reasons. 1. Check DBM for proper operation by running a Device Test. 2.
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Pin Assignments Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Network Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3600 Hubbing Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DTE Connectors . . . . . . . . . . . . . . . . .
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COMSPHERE DualFlow Data Service Units Table D-1 Model 3615 – Digital (DDS and 4-Wire Switched 56 kbps) 8-Pin Network Connector Pin Assignments Pin Circuit Function 1 R1 Transmit data to local loop 2 T1 Transmit data to local loop 7 T Received data from local loop 8 R Received data from local loop Table D-2 Model 3615 – Dial (Analog and 2-Wire Switched 56 kbps) 6-Pin Network Connector Pin Assignments Pin Circuit Function 3 T Tip – V.32 and 2-Wire Switched 56 DBMs only 4 R Ring – V.
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Pin Assignments Table D-3 3600 Hubbing Device Pin Assignments Pin # Signal Name Input/Output 1 +5 Vdc Input 2 DCOSD/CCIRD Input 3 Signal Ground Ground 4 DCORD/CCISD Output Table D-4 3600 Hubbing Device CC IN/DC OUT Jack Pin Assignments Pin # Signal Name In/Out CC IN DC OUT 1 –V Pass-Through — N/C N/C 2 DCOCTS/CCIRTS IN RTS CTS 3 DCORTS/CCICTS OUT CTS RTS 4 DCOSD/CCIRD OUT RD SD 5 Signal Ground — GND GND 6 DCORD/CCISD IN SD RD 7 N/C — N/C N/C 8 +V Pass
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COMSPHERE DualFlow Data Service Units DTE Connectors Figure D-3 shows the Model 3616 DSU’s rear connector plate. Table D-5 provides the EIA-232/V.24 connector’s pin assignments. Figure D-4 shows the V.35 Interconnect Cable that is shipped with the rear connector plate; it provides the interface between the port’s D-type connector and the DTE cable’s V.35 connector. Table D-6 provides the 25-pin V.35 connector and the V.35 Interconnect Cable’s pin assignments. Figure D-3.
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Pin Assignments Table D-5 EIA-232/V.
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COMSPHERE DualFlow Data Service Units Figure D-4. V.
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Pin Assignments Table D-6 V.35 Connector Pin Assignments 25-Pin Connector (Rear Connector Plate) 34-Pin Connector (V.
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COMSPHERE DualFlow Data Service Units Crossover Cables Figure D-5 shows the EIA-232-D crossover cable and its pin assignments, and Figure D-6 shows the V.35 crossover cable and its pin assignments. Figure D-5.
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Pin Assignments Figure D-6. V.
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Application Configurations Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dial Backup for Received Data Errors Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dial Backup for Exceeded Load Thresholds Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Frame Relay and Simultaneous Diagnostic Application . . . . . . . . . .
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COMSPHERE DualFlow Data Service Units Dial Backup for Received Data Errors Application Select the Synchronous Backup for either a control or tributary (SyBC or SyBT) configuration from the preset configurations provided by the Configuration (Confg) branch, depending upon which DSU you are configuring. In this application, the router controls backup of one drop on the Frame Relay or DDS network.
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Application Configurations Dial Backup for Exceeded Load Thresholds Application For example, a Cisco router can be configured as follows: Use the application shown in Figure E-2 when traffic loading (acquiring additional bandwidth upon demand) for the router is needed. The router must use its Backup Load option. In this example, if traffic on the primary serial port exceeds 60%, the secondary serial port is activated by the router raising DTR.
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COMSPHERE DualFlow Data Service Units Frame Relay and Simultaneous Diagnostic Application This application allows you to manage and diagnose a router remotely without interfering with the router’s primary data path. This configuration involves simultaneous transmissions: user data over the DDS line to the router’s primary serial port, and router-management data over a line going to the router’s console interface. Use the DSU’s V.35 interface for the user data, and use the DSU’s EIA-232-D/V.
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Equipment List F Feature/Part No. G = Factory Install. F = Field Install. Comcode 3615-A1-002 3615-A1-014 3615-A1-012 107330078 107330144 107330136 3616-B1-002 3616-B1-014 3616-B1-012 107330151 107330177 107330169 Rear Connector Plate – 25-Pin EIA-232/25-Pin V.35 3000-F1-021 106476229 V.35 Interconnect Cable (For 25-Pin V.
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COMSPHERE DualFlow Data Service Units Feature/Part No. G = Factory Install. F = Field Install. Comcode 50-pin to eight 6-pin Multiple Network Interface Adapter (Model 3616 in Canada) 1.5i — 3000-F1-009 106459621 50-pin to eight 8-pin Multiple Network Interface Adapter (Model 3616 in U.S.A.) 1.5i — 3600-F2-503 106303837 50-pin to eight 6-pin RJ11C/Permissive Cable 1.5i — 3600-F2-505 106459928 50-pin to eight 8-pin RJ45S/Programmable Cable 1.
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Equipment List Equipment* Part Number Field Service Spares Model 3615 DSU 870-1868-8001 Model 3616 DSU – modular CCA 870-1869-8001 Dial Backup Modules (DBMs) – Models 3615/3616 Snaplock Posts (Core) Standoff Posts (Line Interface) 598-0086-0031 589-0078-0031 V.32bis 14.4 kbps DBM Core V.32bis 14.
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COMSPHERE DualFlow Data Service Units Equipment* Part Number Model 3615 25-pin Plug to EIA-232 Plug Cable for extended circuits (select one) EIA-232 Crossover Cable Pin-to-Pin EIA-232 Cable (straight connection) 15i — 818-2759-0111 10i — 835-4507-1011 V.35 Crossover Cable 15i — 835-1092-0011 Model 3616 Digital (DDS) Network Cables 50-pin to eight 6-pin Multiple Network Interface Adapter 1 (Model 3616 in Canada) 1.
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Glossary auto backup A function of the dial backup module (DBM) or carrier-mounted dial backup unit, whereby the DSU activates the DBM to reestablish a line automatically when a facility alarm is detected from the DDS network. auto restoral A function of the DBM whereby the DSU automatically returns to the DDS network when service is restored over the private line. On point-to-point circuits, the DSU test the integrity of the DDS network before switching data back to the private line.
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COMSPHERE DualFlow Data Service Units CTS The state of the Clear-to-Send lead (V.24 circuit 106). Data Service Unit (DSU) A DCE device that interprets, interfaces, and provides timing and signal control between a DTE device and a digital network. Data Terminal Equipment (DTE) A computer or peripheral device, such as a terminal or printer; a data source or sink. DBM The dial backup module for the DualFlow DSU. This module provides an alternate data path for carrying router data.
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Glossary fallback Retraining of a V.32 DBM at a lower rate or speed. FCC Federal Communications Commission. Board of commissioners that regulates all interstate and foreign electrical communication systems that originate from the United States. Front-End Processor (FEP) A communications computer associated with a host computer that manages the lines and routing of data through the network. IEC InterExchange Carrier.
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COMSPHERE DualFlow Data Service Units point-to-point circuit A data network circuit with one control and one tributary. rate adaption Used when the DSU or DBM operates at a speed greater than the DTE. This capability is enabled automatically when the port speed is set lower than the line speed. router A device that makes decisions about the paths network traffic should take and forwards that traffic to its destination.
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Glossary winkback detection In telephone switching systems, a momentary signal state change from control mode idle (CMI) to data mode idle (DMI), and back to CMI (sometimes referred to as a “wink start’’). 6700 Series Network Management System (NMS) A Paradyne automated network management system that allows an operator to monitor network conditions, analyze problems, and take restorative measures from a single personal computer (PC) workstation.
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Index A Abort, 4-9, 4-16 selective, 4-9 subnetwork, 4-9 Abort Call failure message, C-7 ac power requirements, 1-4 Acq, 4-16 Activ, 4-14, 4-15, 5-3 Active message, DBM, C-4 Addr, 4-18 address, network, 4-18 addresses, verifying, 2-11 addressing, 2-10, 3-10 example, 2-10, 3-10 tributary, 2-10 Alarm, 4-7 Alrm, status indicator, C-2 SDCP, C-3 analog network connector, pin assignments, D-2 Answering DBM message, C-9 AntiStream DBM Port option set, 5-13 DSU Port option set, 5-7 application 2-Wire Switched 56 DBM
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COMSPHERE DualFlow Data Service Units BilatLpbk DBM Port option set, 5-14 DSU Port option set, 5-9 BiplrViol, DBM alarm, C-4 BiplrViol alarm, C-5 Bit Error Rate Test, 2-12, 3-12, 4-12 DBM test message, C-4 DSU test message, C-5 results, 4-12 branch Backup, 4-7 Configuration, 4-13 Control, 4-19 Message, 4-20 Status, 4-4 Test, 4-9 broadcast, 2-10 address, 3-10 Busy DBM error message, C-11 failure message, C-7 C cable crossover, D-8 EIA-232-D crossover, D-8 V.35 crossover, D-9 V.
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Index connection DDS (or LADS), 3-9 dial (or PSTN), 3-8 electrical, 2-4 NMS, 3-8 point-to-point, nondisruptive, 1-3 multispeed, 1-2 router, 2-9 Switched 56 kbps network, 3-8 to network, 3-8 to router, 2-9, 3-9 connector digital network, D-1 DTE, D-4 network, D-1 plate, rear, 1-4 control management, 1-3 NMS, 1-1 panel diagnostic, 1-2 format, C-3 messages, C-1, C-3 status indicators, C-1 transmitter, 4-19 Control branch, 4-19, A-4 crossover cable, D-8 EIA-232-D, D-8 V.
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COMSPHERE DualFlow Data Service Units diagnostic control panel, 1-2 DBM test initator, C-4, C-5 DBM, configuration options, 5-16 General, configuration options, 5-17 interface, 1-5 nondisruptive, 1-2, 1-3 tributary, 1-2, 1-3 Dial, status indicator, C-2 dial backup, 4-7 configuration, 4-7 error messages, C-11 exceeded load threshold application, E-3 progress messages, C-9 received data errors application, E-2 network connection, 2-6, 3-8 network connector, pin assignments, D-2 Dial Attempt failure message,
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Index H environment, 1-4 equipment list, F-1 support, 1-8 warranty, 1-8 error correction indicator, SDCP, C-3 error messages command, C-10 dial backup, C-11 example using the DCP, 5-3 exceeded load threshold application, E-3 Exp, C-7 Expan, 4-5 Expanded Health and Status, 4-5 messages, C-7 External Alarm A message, C-5 External Alarm B message, C-5 External Bkup speed, C-4 external leads, 4-19 changing, 4-20 displaying, 4-20 reporting changes to NMS, 4-20 ExternBU message, C-4 ExtL, 4-19 ExtLd message, C-
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COMSPHERE DualFlow Data Service Units K M keypad, 4-4 management control, 1-2, 1-3 manual backup, 4-9 termination, 4-9 Max, C-7 menu, A-1 Backup branch, 4-8 Local/Remote mode, A-4 structure, 4-4, A-1 top-level, 2-5, 4-4 top-level, 3-11, A-1 tree, 4-2, A-1 Message branch, 4-20 messages command error, C-10 control panel, C-3 status indicators, C-1 Device Health and Status, C-4 dial backup error, C-11 progress, C-9 error, C-10 Expanded Health and Status, C-7 Health and Status, C-3 progress, C-9 Subnetwork H
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Index N NetL DBM test, C-4 DSU test, C-5 Netwk Busy DBM error message, C-11 failure message, C-7 NetwkAbort DBM error message, C-11 failure message, C-7 NetwkUnavl DBM error message, C-11 failure message, C-7 Network, loopback, DBM test message, C-4 network address, 4-18 addresses, verifying, 3-12 addressing, link-level, 2-10, 3-10 compatibility, 1-3 2-wire Switched 56 DBM, 1-8 4-wire Switched 56 DBM, 1-7 DSU, 1-5 connection, 2-5 DDS (or LADS), 2-7 dial, 2-6 Switched 56 kbps, 2-7 connectors, D-1 DSU test i
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COMSPHERE DualFlow Data Service Units Position, Diagnostic General option set, 5-17 power, terminal, 4-7 power-up routine, 2-5, 3-8 primary channel, 1-5 PrimaryCore, DBM option set, 5-12 progress messages, C-9 command, C-9 dial backup, C-9 ProtoErr, DBM error message, C-12 PrtSp(Kbps), DBM option set, 5-9 PSTN connecting, 2-5 connection, 2-6 RespondRDL DBM Port option set, 5-14 DSU Port option set, 5-8 RestorTimOut, 4-8 Backup option set, 5-19 ringer equivalence number (REN), 1-6 Ringing DBM message, C-9
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Index standard features, 1-1 Standby, DBM message, C-4, C-9 Standby mode, 4-8 Starting Up DBM message, C-9 Stat, 4-4 Status branch, 4-4, A-4 DTE, 4-5 indicators, C-1 DSU, C-2 SDCP, C-3 Stndby message, C-8 Stop Bits, DBM Port option set, 5-15 storage temperature, 1-4 Stream message, C-8 Streaming Terminal alarm, C-2 StreamTerm, DSU or DBM message, C-6 Subn, 4-5 Subnetwork Alarm, C-2 Subnetwork Health and Status, 4-5 messages, C-8 SubnetwrkAlarm message, C-6 SubSpd message, C-8 Subtree Truncat message, C-6 s
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COMSPHERE DualFlow Data Service Units U V UL, 1-4 understanding configuration option tables, 5-5 unit configuration, 5-1 Usr1, 5-3 Usr2, 5-3 Usr3, 5-3 V.32 DBM, 1-2 technical specifications, 1-6 V.35 connector, 1-1 pin assignments, D-7 crossover cable, D-9 interconnect cable, 3-7, D-6 selection, 4-5 V.