JANUARY 1998 MT100A-35-R2 MT100A-449-R2 MT100A-530-R2 T1 CSU/DSU (V35) T1 CSU/DSU (449) T1 CSU/DSU (530) CUSTOMER SUPPORT INFORMATION Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.
T1 CSU/DSU T1 CSU/DSU Installation and Operation Manual ————— FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT This equipment generates, uses and can radiate radio frequency energy and if not installed and used properly, that is in strict accordance with the manufacturer’s instructions, may cause interference to radio communication.
T1 CSU/DSU TABLE OF CONTENTS 1.0 Specifications ............................................................................................................. 4 2.0 Introduction ............................................................................................................... 6 2.1 General Information .................................................................................................. 6 2.2 Purpose of this Manual .................................................................
T1 CSU/DSU FIGURES AND TABLES LIST OF FIGURES Figure 2-1. Figure 2-2. Figure 2-3. Figure 2-4. Figure 2-5. Figure 2-6. Figure 2-7. Remote CSU/Aggregate Loopback .............................................................. 7 Remote Channel Loopback ........................................................................... 7 Local Channel Loopback .............................................................................. 7 Local Aggregate Loopback ......................................................
T1 CSU/DSU 1.0 SPECIFICATIONS Configuration - DIP-switch selectable, readily accessible from the rear panel Aggregate - Recommended Cable Requirement: Twisted Shielded-Pair - Line Rate: 1.544 Mbps +/– 50 bps - Line Format: AMI or B8ZS - Framing Format: D4 or ESF(Fe) - Pulse Characteristics: AT&T 62411 Compliance - Output Amplitude: 2.4 to 3.3 V peak to base - Receiver sensitivity: 0 to –26 dB - Line Buildout (CSU): 0dB, –7.
CHAPTER 1: Specifications DTE Channels MT100A–35-R2: CCITT V.35 interface; 34-pin M block (female) connector MT100A–449-R2: EIA RS-449 interface; DB37(female) connector MT100A–530-R2: EIA RS-530 interface; DB25 (female) connector - Density: Alternate DS0 (Fractional T1), Bit 7 stuffing, or None - Selectable DTE Channel Rates N X 56 kb/s (56, 112, 168, 224, 336, 448, 672, or 1,344) - Selectable DTE Channel Rates N x 64 kb/s (64, 128, 192, 256, 384, 512, 768, or 1,536.
T1 CSU/DSU Front Panel DTE Channel Indicators - Transmit Data (TD) - Receive Data (RD) - Request To Send (RTS) - Receive Line Signal Detect (RLSD) Standalone Unit - Size: 1.5"H x 7.25"W x 10.5"D (3.8 x 18.4 x 26.7 cm) - Weight: 2 lb. (0.9 kg) - Power: External Wall Mount Power Supply Environmental - Temperature: 32° to 122°F (0° to 50°C) - Storage Temperature: –4° to 176°F (–20° to 80° C) - Relative Humidity: 0 to 95% noncondensing - Maximum Altitude: 15,000 ft.
CHAPTER 2: Introduction 2.0 INTRODUCTION 2.1 General Information The T1 CSU/DSU product line is a high speed T1 format processor with one of three interfaces for the DTE channel: CCITT V.35; RS-449; RS-530. It is capable of processing data at speeds from 56kb/s to 1.536Mb/s, depending upon the format and density requirements of the application. It provides all the framing and density requirements for data transmission across predefined network facilities, such as ACCUNET.
T1 CSU/DSU 2.4 Loopback Switches There are two Loopbacks switches on the front panel of the of the T1 CSU/DSU. Both switches allow the user to test individual sections of data transmission path. This ability to test these individual paths allows the user to isolate, diagnose, and then perform corrective action to resolve data transmission problems in the network. 2.4.
CHAPTER 2: Introduction 2.4.4 LOCAL AGGREGATE LOOPBACK The LOCAL AGGREGATE LOOPBACK diagnostic (Figure 2-4) enables the user to verify the T1 CSU/DSU logic from the channel interface, through the aggregate, and return to the channel interface. To select this test, position the AGGREGATE LOOPBACK switch in the LOCAL position. When complete, reposition the switch to the center position. TX Test Equip. CHANNEL TX RX RX TX CHANNEL RX TX RX Figure 2-4. Local Aggregate Loopback. 2.
T1 CSU/DSU NOTE When operating as a channel service unit (CSU), the setting of the Line Build Out function is dictated by the carrier and must be set as the carrier specifies. Otherwise, the LBO Switch must be set to zero (0) dB position. 2.8 CHANNEL INTERFACE CONNECTIONS T1 CSU/DSU is configured for DTE connection with one of these three interfaces: V.35; RS-449; or RS530 (female connectors). Below are the pin-outs (male connectors) for these interfaces. V.
CHAPTER 2: Introduction POWER V.35, RS-449, or RS-530 channel NETWORK SW 1 LBO 0 –7.5 –15 SW 3 SW 2 SEE BASE FOR SWITCH SETTING INFORMATION Figure 2-5. Rear Panel Connections. VM Series Regaulated Table Top Power Supply Pin 1 = Common Pin 2 = N/C Pin 3 = +5V Pin 4 = –12V Pin 5 = +12V 3 1 5 4 2 Figure 2-6. Power Connector Pin Out.
T1 CSU/DSU 3.0 INSTALLATION 3.1 INTRODUCTION This chapter has the information necessary to plan, perform and verify the mechanical and electrical installation of the T1 CSU/DSU. Before installing the T1 CSU/DSU, read and completely understand the information presented here. 3.2 SITE PREPARATION The T1 CSU/DSU should be installed within 7 feet of a grounded AC outlet furnishing 115/230VAC. The location should be clean, well lighted, and conform to the standards for computer equipment installations.
CHAPTER 3: Installation 3.4.3 POWER CABLING AND INITIAL POWER UP NOTE Before connecting the power cable to the T1 CSU/DSU, ensure that the unit is properly configured and all interface cables are connected and seated. Power to the T1 CSU/DSU is supplied by a separate DC Power Supply. Insert the power supply male DIN connector into the female DIN connector at the rear of the unit. Insert the power cable male connector into a grounded AC power receptacle. At this time power is applied to the T1 CSU/DSU.
T1 CSU/DSU 4.0 OPERATION 4.1 INTRODUCTION The T1 CSU/DSU is controlled by a series of simple switch settings that the operator can select by accessing Switches one, two, and three at the rear of the unit. 4.1.1 MODIFY CONFIGURATION To configure a new T1 CSU/DSU Series unit or modify the configuration of an existing T1 CSU/DSU Series unit, first determine the correct information by reviewing following worksheet.
CHAPTER 4: Operation Configuration Worksheet CUSTOMER NAME: _______________________________________________________ DATE: _______________________________________________________ CUSTOMER LOCATION: _______________________________________________________ CONFIGURATION: _______________________________________________________ SWITCH ONE SETTINGS 1. DATA RATE SELECTION (SEE TABLE 3-2) ...................................S1-1 S1-2 S1-3 2. DTE Channel Multiples ....................................................
T1 CSU/DSU 3. CHANNEL SEND TIMING: A. LOOP 1 (Terminal Timing) ........................................S1-5: ON B. LOOP 2 (Send Timing) ...............................................S1-5: OFF 4. CHANNEL TIMING: A. NORMAL .......................................................................S1-6: ON B. INVERTED ....................................................................S1-6: OFF 5. CHANNEL DATA: A. NORMAL ......................................................................S1-7: 0N B.
CHAPTER 4: Operation SWITCH TWO SETTINGS 1. LBO SETTlNG (Active only in the CSU mode of operation. When operating in the DSX-1 mode, the LBO switch must be in the zero [0] dB position.). Position the LBO switch as directed by the carrier: A. –1 5dB B. –7.5dB C. 0dB SWITCH THREE SETTINGS 1. NETWORK FRAMING: A. D4: .......................................................................................S3-1: ON B. ESF(Fe): ................................................................................
T1 CSU/DSU In making the following 5 selections, the operator defines the mode of operation as DSX1 and also specifies the proper transmit output pulse. 4. TRANSMIT OUTPUT PULSE: (DSX-1 Mode Only. If any of the output pulse selections are made, then the CSU selection is invalid. If a DSX-1 Mode is selected, verify that the LBO Switch is in the O position.) The TRANSMIT OUTPUT PULSE selection is determined by the distance between the unit and the external CSU. A. 000 – 133 FT ..............................
CHAPTER 4: Operation D. 1 IN 64 ...........................................................................S3-6: OFF S3-7: OFF S3-8: OFF E. NONE ...........................................................................S3-6: ON S3-7: N/A S3-8: N/A 6. ZERO BYTE SUPPRESSION A. INHIBIT: .......................................................................S3-9: ON B. ACTIVE: ........................................................................S3-9: OFF 7. DS0 MAPPING A. CONTIGUOUS: ...............
T1 CSU/DSUT1 CSU/DSUNAME 4.1.2 CONFIGURATIONS TABLES When the user becomes proficient with the configuration procedures of the T1 CSU/DSU Series unit, it may easier and simpler to use the configuration tables presented below and also available on the bottom of the device to quickly configure the T1 CSU/DSU Series unit. Table 4-1. Configuration Switch 1 Settings.
CHAPTER 4: Operation Table 4-3. Aggregate Timing Selection. TRANSMIT TIMING REFERENCE S1–9 S1–10 INTERNAL (MASTER) CRYSTAL TIMING ON ON LOOP (SLAVE) TIMING OFF ON EXTERNAL CHANNEL TIMING ON OFF INTERNAL (MASTER) CRYSTEL TIMlNG OFF OFF Table 4-4. Configuration Switch 3 Settings.
T1 CSU/DSUT1 CSU/DSUNAME Table 4-5. Output Pulse Selection. LINE LENGTH SELECTED S3-3 S3-4 S3-5 N/A ON ON ON N/A OFF ON ON CSU ON OFF ON DSX–1 000 – 133 FEET OFF OFF ON DSX–1 133 – 266 FEET ON ON OFF DSX–1 266 – 399 FEET OFF ON OFF DSX–1 399 – 533 FEET ON OFF OFF DSX–1 533 – 655 FEET OFF OFF OFF Table 4-6. Density Selection.
APPENDIX A: FCC Documentation Requirements FCC DOCUMENTATION REQUIREMENTS The following information is required by FCC Part 68 Rules which inform the user of his rights and obligations in connecting this equipment to he network and in ordering service. This equipment complies with Part 68 of FCC Rules. Please note the following: 1. When you order service, the telephone company needs to know: a. The Facility Interface Code: 04DU-B (1.544 MB D4 framing format) 04DU9-C (1.544 MB ESF format) b.
T1 CSU/DSUT1 CSU/DSUNAME AFFIDAVIT FOR THE CONNECTION OF CUSTOMER PREMISES EQUIPMENT TO 1.544 MBPS AND/OR SUBRATE DIGITAL SERVICES.
APPENDIX B: TELCO Affidavit I attest that the operator(s)/maintainer(s) of the digital CPE responsible for the establishment, maintenance and adjustment of the encoded analog content and billing information has (have) been trained to perform these functions by successfully completing one of the following (Check appropriate one(s)) a. A training course provided by the manufacturer/grantee of the equipment used to encode analog signals; or b.
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