INSTALLATION AND OPERATION MANUAL DXC-100PSX N+1 Protection Switch DXC-100 Version 16.
DXC-100PSX N+1 Protection Switch DXC-100 Version 16.2 Installation and Operation Manual Notice This manual contains information that is proprietary to RAD Data Communications Ltd. ("RAD"). No part of this publication may be reproduced in any form whatsoever without prior written approval by RAD Data Communications.
Contents Chapter 1. Overview 1.1 1.2 1.3 1.4 Overview.................................................................................................................... 1-1 Purpose and Use..................................................................................................... 1-1 Main Features ......................................................................................................... 1-1 Cooling System ..........................................................................
Table of Contents 3.7 Installation and Operation Manual Reset the Protection Switch Controller Card .......................................................... 3-25 The Switchover Command ..................................................................................... 3-26 About Menu ............................................................................................................. 3-27 Access the DXC-100PSX About Menu ....................................................................
Chapter 1 Overview 1.1 Overview Purpose and Use The DXC-100PSX N+1 Protection Switch provides automatic backup for failed narrowband (D8E1T1) and/or broadband (DT3 or DE3) module sets in a DXC-100 Multiservice Access Node, whether used as a standalone or as part of a stack. The backup is accomplished by providing a redundant (spare) module set within the DXC-100 of identical type as the primary module(s) being protected.
Chapter 1 Overview Installation and Operation Manual • Mismatch between hardware and software shadow • Missing cables • Card problems such as: Loss of communication Loss of clock Framer problems, etc. Cooling System DXC-100PSX has a three-speed cooling fan system. The system provides automatic speed change (auto-sensing temperature) or it can be controlled via the menu screen.
Installation and Operation Manual Chapter 1 Overview Term Meaning Broadband Redundant Card This card resides in the protection switch and is used to back up a broadband application module; it must reside in slot 11 or 7. Controller Card Provides communications between the DXC-100 System Manager and the protection switch. N+1 Device Redundancy (NDR) A redundant device is provided to replace a failed primary device in a group.
Chapter 1 Overview Installation and Operation Manual and DXC-100 System Manager (DSMC.2) or Expansion Node Manager (DXNM) are connected via a DB9 serial interface cable. • Two slots for the DC Redundant Power Supply. The DC Power Supply has a range of 43.2V DC to 52.8V DC. Terminal blocks are used for DC power input. • A fan assembly unit for auxiliary cooling. DSTM-1/DOC-3 Figure 1-1.
Installation and Operation Manual Chapter 1 Overview Indicators There is only one indicator on the DXC-100PSX; it is a READY indicator that resides on the PSX Controller Module. See Table 1-1 for indicator states and associated illumination criteria. 1 Table 1-1. DXC-100PSX Indicator (Controller Module) Indicator State Description READY Flashing Green Protection Switch is powered up and the PSX Controller is communicating with the System Manager Module (DSMC.2) in the DXC-100.
Chapter 1 Overview Installation and Operation Manual DPS/DC DC POWER Figure 1-2. DC Power Supply Module + - Each DC Power Supply Module has a single connector (with 3mm screw down terminals) to interface to the -48VDC external power source(s). Terminal polarity labeling is provided on the rear faceplate. Note This connector is identical to that utilized on the DXC-100 chassis DC power input.
Installation and Operation Manual Chapter 1 Overview DNC READY Figure 1-3. N+1 Protection Switch Controller Module A single bi-color (green/red) LED is provided to indicate whether the controller module is powered and operating properly. See Table 1-1 for the indicator states and associated illumination criteria. 4 The PSX Controller module directly interfaces the DXC-100 resident DSMC.2 or DXNM module sets via a DB-9 (EIA-232) 38.4 kbps asynchronous serial data link.
Chapter 1 Overview Installation and Operation Manual Thumbscrews are provided at the top and bottom of the faceplate to secure the module in the chassis and to make an electrical connection to frame ground for regulatory emission compliance. See Figure 1-4 for an illustration of a Narrowband Primary Module.
Installation and Operation Manual Chapter 1 Overview Table 1-3.
Chapter 1 Overview Installation and Operation Manual D8E1T1/R Figure 1-5. Narrowband Redundant Module A single 50-pin (AMP 552725-1 telco-type) female receptacle is mounted on this interface module and is used to directly interface the identical DXC-100-resident D8E1T1 (redundant) port interface (i.e., there is no direct network interface for redundant modules). See Table 1-4 for the connector configuration and associated pinouts. 9 Table 1-4.
Installation and Operation Manual Chapter 1 Overview Group 2 or in DXC-100PSX slots 8 through 10 for Broadband Group 1. The protected DT3 or DE3 module set must be installed in a matching slot (slots 1 to 6 or 8 to10) in the DXC-100 chassis. Thumbscrews are provided at the top and bottom of the faceplate to secure the module in the chassis and to make an electrical connection to frame ground for regulatory emission compliance. See Figure 1-6 for an illustration of a Broadband Primary Module.
Chapter 1 Overview Installation and Operation Manual Broadband Redundant Module, DE3T3/R The Broadband Redundant Module is designed to interface with the DXC-100resident standby DT3 or DE3 interface module via a set of BNC interconnection cables. This module is used to facilitate DXC-100-commanded interface switching to the standby module from the protected module (via latching relays).
Installation and Operation Manual Chapter 1 Overview Fan Assembly The field-replaceable exhaust fan assembly removes the heated air from the DXC-100PSX enclosure as well as the associated DXC-100 nest. Figure 1-10 shows the front-mounted fan assembly (containing three fan units) with the front cover removed. 1 Figure 1-10. Fan Assembly (without Front Cover) 1.
Chapter 1 Overview Installation and Operation Manual condition. See Figure 1-11 for an overview of the normal operation utilizing both BB1 (shown in black) and BB2 (shown in gray) redundancy groups. DXC-100 1 Figure 1-11. Broadband Normal Operation Broadband Protection Mode Operation In the event that a fault or failure is detected within a DXC-100 broadband primary module set, a system-level alarm will be issued and the DXC-100/DXC-100PSX broadband redundancy switching process will commence.
Installation and Operation Manual Chapter 1 Overview 2. Redundant broadband module set (if in standby mode) receives configuration and crossconnect map information for the defective module from the DXC-100 system manager. 3. PSX controller module receives command from the DXC-100 system manager to transfer the broadband link (including all embedded T1/E1 links) to the redundant module in place of the failed broadband module set. 4.
Chapter 1 Overview Installation and Operation Manual Table 1-5.
Chapter 1 Overview DXC-100 Installation and Operation Manual Figure 1-13. Narrowband Normal Operation Narrowband Protection Operation In the event that a fault or failure is detected within a primary DXC-100 narrowband module set, a system-level alarm will be issued and the DXC-100/DXC-100PSX narrowband redundancy switching process will commence. This process is as follows: 1. DSMC.2 (or DXNM) detects module-level fault or failure condition, such as: DXC-100PSX Missing System Clock - DXC-100 16.
Chapter 1 Overview Installation and Operation Manual 2. Redundant narrowband (D8E1T1) module set (if in standby mode) receives configuration and cross-connect map information for the defective module from the DXC-100 system manager. 3. PSX controller module receives command from the DXC-100 system manager to transfer all eight links to the redundant module in place of the failed D8E1T1 module set. 4. Redundant module will synchronize with the links and user traffic will be reestablished.
Installation and Operation Manual Chapter 1 Overview Table 1-6.
Chapter 1 Overview DC Power Supply Module PSX Controller Module Narrowband Primary Module, D8E1T1/P Installation and Operation Manual Physical Dimensions 133 mm H (5.25”) x 235 mm (9.25”) D x 53 mm (2”) W Functionality Provides DC power for DXC-100PSX Nominal Input Voltage -48 VDC Connector 3-position panel-mounted header (Phoenix 07-07-25-1) and terminal strip/plug (Phoenix 17-57-02-2) Fuse F1 (on printed circuit board): 2A, 125V, fast-acting Physical Dimensions 133 mm (5.
Installation and Operation Manual Broadband Redundant Module, DE3T3/R Fan Assembly DXC-100PSX Chapter 1 Overview Physical Dimensions 133 mm H (5.25”) x 235 mm (9.
Chapter 1 Overview 1-22 Technical Specifications Installation and Operation Manual DXC-100PSX
Chapter 2 Module Installation and Operation 2.1 Installing and Connecting the Protection Switch This section will guide you through installing the DXC-100PSX N+1 Protection Switch, installing modules, and configuring Network Redundancy. DPS/DC DPS/DC DE3T3/R OUT DC POWER TX DE3T3/P IN D8E1T1/P D8E1T1/R RX DNC READY DC POWER RX + - TX + OUT TX RX Figure 2-1. N+1 Protection Switch (Rear View) Ensure that you have 3RU (5.
Chapter 2 Module Installation and Operation Installation and Operation Manual 3. Connect the opposite end to the DB9 connector located on the DSMC.2 rear interface module, marked PROTECT SWT. 4. Install the primary and redundant interface modules. The DXC-100PSX Primary and Redundant Interface Module components are sensitive to electrostatic discharge.
Chapter 2 Module Installation and Operation DXC-100 Installation and Operation Manual Figure 2-2. DXC-100PSX Narrowband Cable Installation Note In the above figure, slots 3 and 5 contain Narrowband primary interface modules, and slot 1 contains the Narrowband Group backup module. The numbers on the cables correspond to the steps in the Narrowband Connection procedure above. Note To power up, refer to Connecting N+1 Protection Switch DC Power (-48VDC) on page 2-4.
Chapter 2 Module Installation and Operation Installation and Operation Manual 5. Connect another BNC cable (CBL-100PSX-DE3T3) between the TX port of the DXC-100PSX Broadband Redundant module and the RX port of the corresponding backup broadband interface module in the DXC-100. Figure 2-3 illustrates a DXC-100PSX connection for Broadband Redundancy. DXC-100 4 Figure 2-3.
Installation and Operation Manual Chapter 2 Module Installation and Operation 1. Mount the unit above a DXC-100 unit in a rack as specified previously. 2. Shut off -48VDC power to the DC supply leads. 3. Strip the insulation back approximately 5/16 inch (8 mm) from the end of each lead. 4. Note the positions of earth, negative and positive on the DC power plug (designations are on the DC Power Supply Module faceplate). 5.
Chapter 2 Module Installation and Operation Installation and Operation Manual 7. Insert the “-48 volt supply” wire into the negative terminal clamp and tighten the clamp screw. 8. Insert the “return” wire into the positive terminal clamp and tighten the clamp screw. 9. Insert the power terminal block into the mating receptacle on the rear panel (see Figure 2-5). 8 10. Repeat Steps 2 to 9 if the DXC-100PSX has a second (redundant) DC Power Supply Module installed. 11.
Chapter 3 Configuration Instructions 3.1 Verifying Protection Switch Installation To ensure that the Protection Switch has been properly installed, verify the Card Status is Ok and the Switch State’s condition is Normal. Note ³ For detailed craft terminal operating instructions refer to the DXC-100 Installation and Operation Manual. To verify the protection switch installation: 1.
Chapter 3 Configuration Instructions Installation and Operation Manual Protection Switch Status Menu appears: it should look similar to the one shown in Figure 3-2.
Installation and Operation Manual Chapter 3 Configuration Instructions Rev. 0 Controller Module cannot determine the chassis type. In order to enable a second broadband group, go to the Nest Profile Menu, which is displayed on the following page. The information contained on the Protection Slot Information Display is listed in Table 3-1. 2 Table 3-1.
Chapter 3 Configuration Instructions Installation and Operation Manual Yes at the Protection Switch Dual Broadband Groups field. A new field, N+1 Redundancy Broadband Group 2, will appear. Establish which broadband devices you want to include for Broadband Group 1 and Broadband Group 2. If you have a Rev 0 Controller Module and the DXC-100PSX 2.3 software, you will need to specify DXC-100PSX chassis in order for your system to support the second broadband bus. Now, go back to the Nest Summary Menu.
Installation and Operation Manual 3.3 Chapter 3 Configuration Instructions Setting Up Multiple NDRGs While portions of the broadband and narrowband redundancy groups are mutually exclusive, you can set up combinations of both broadband and narrowband NDRGs, as well as multiple broadband NDRGs. Figure 3-6. Rear View of DXC-100PSX showing possible Narrowband and Broadband NDRGs Up to three NDRGs (i.e.
Chapter 3 Configuration Instructions Installation and Operation Manual Note If a primary device in an Redundancy Group is being protected by a redundant device, do not remove it from the group if a switchover has occurred. Setting up a Narrowband Redundancy Group A Narrowband Redundancy Group can contain up to eleven configured narrowband devices. These devices reside in slots 1 through 11. It is not necessary to have all narrowband devices in the nest be part of the Narrowband Redundancy Group.
Installation and Operation Manual Chapter 3 Configuration Instructions Configure a Narrowband Redundancy Group 1. From the DXC-100 Main Menu, select System Configuration, then select Nest Profile. The following menu appears: Nest #1 : Profile Nest name: Node Mgr. Unit I Nest type:.............................: Dual System Mgr........................: Alarm Contacts Type....................: Dual XCC...............................: Number of Rings for Modem Auto-Answer..: Nest Dual Power Supplies.........
Chapter 3 Configuration Instructions Installation and Operation Manual 4. Go back to the DXC-100 Main Menu and select System Configuration, then select Slot Configuration.
Installation and Operation Manual Note Chapter 3 Configuration Instructions To enable redundancy for the Narrowband Redundancy Group you must have selected Octal T1/E1 as the card type. 9. To exit and save changes, press X. When prompted: “Update Configuration? Are you sure? (Y/N)” press Y. You are returned to the Slot Configuration Menu. Narrowband Redundant Device View Information on the Narrowband Redundant Device in Slot 1 1. From the DXC-100 Main Menu, select Nest Summary.
Chapter 3 Configuration Instructions Installation and Operation Manual 10. Position your cursor on slot 1 and press . The following menu appears: Main Menu ----------Protected Slot: 02 View Configuration Diagnostics Utilities N+1 Redundancy About Figure 3-11. D8E1T1 Secondary Device Since slot 1 is established as the redundant device, it is only viewable as a status screen.
Installation and Operation Manual Chapter 3 Configuration Instructions It is important to note here that there is no priority structure to an Redundancy Group. In other words, the first primary card in the Redundancy Group to fail is the one that will be switched. Should another primary card in the Redundancy Group fail while the redundant card is in use, another switchover will not take place. To establish a Broadband Redundancy Group, you must go to the Slot Configuration Menu.
Chapter 3 Configuration Instructions Installation and Operation Manual available; configure your Broadband Group(s) as appropriate. Octal E1/T1 (D8E1T1) will be the N+1 Redundancy Narrowband Group type. 12. Go back to the DXC-100 Main Menu and select System Configuration, then select Slot Configuration. The following menu appears (Figure 3-13): 6 13. Position the cursor next to the slot you want to configure and press . The following menu appears: Slot Configuration Nest............: 1 Slot......
Installation and Operation Manual Chapter 3 Configuration Instructions Broadband Redundant Device To view information on the Broadband redundant device in slot 11 (Broadband Redundancy Group 1) or 7 (Broadband Redundancy Group 2), invoke the Nest Summary Menu. Position your cursor on the specific broadband redundant device, in this case slot 11, and press .
Chapter 3 Configuration Instructions Note Installation and Operation Manual Disable is not a selection under N+1 Redundancy States; however, it will appear on your Nest Summary Menu when you reset your DSMC.2 or power down the Protection Switch. For example, Freeze may be selected as the N+1 Redundancy state, see the slot summary menu in Figure 3-15. As long as the system accepts the state, it will be confirmed and appear on the Nest Summary Menu as Frozen, see Figure 3-16.
Installation and Operation Manual Databases: NotInSync!!! Alarm Contacts..
Chapter 3 Configuration Instructions Installation and Operation Manual Nest #1 Slot Configuration Menu Slot# ----1 2 3 4 5 6 7 8 9 10 11 Device Type ---------------Octal T1/E1 Octal T1/E1 Octal T1/E1 Octal T1/E1 Octal T1/E1 HDS-3 HDS-3 STS-1 STS-1 HDS-3 HDS-3 Name -----NB Standby Input 1 Input 2 Input 3 Input 4 HDS3 1 BB2Standby STS1 1 STS1 2 HDS32 BB2Standby N+1 Redundancy: N+1 Redundancy Switchover: N+1 Redundancy Restore: Change Card = [Enter key] Configuring Redundancy -----------Enable Enable Ena
Installation and Operation Manual Chapter 3 Configuration Instructions After establishing your Narrowband Redundancy Group, exit the Slot Configuration Menu and go to the Nest Summary screen, see Figure 3-18. The 1 Nest Summary screen displays a status of each application module in the nest, the status of the device cards configured for redundancy, the status of the System Manager Controller boards, and the status of the Protection Switch. Standby SMC not present Alarm Contacts..
Chapter 3 Configuration Instructions Installation and Operation Manual Refer to the Nest Summary Menu in Figure 3-18, as noted in the Device State column, the redundant device in slot 1 is Online and actively protecting a failed device in slot 2 of the Narrowband Redundancy Group. In this scenario, the T1/E1 primary device is in Standby mode (i.e., waiting to be Restored). A Restore can only be performed manually by the operator.
Installation and Operation Manual Chapter 3 Configuration Instructions N+1 Redundancy Status Menu Member of Redundancy Group: Yes Card Type.................: Secondary Device State..............: Online Frame Sync Pulse.............: System Clock.................: Backplane Timeslot Management: Communication with System Mgr: Rear Card....................: Framers......................: State Change Count --------------------OK 0 OK 0 OK 0 OK 0 OK 0 OK 0 [ C]lear counters Figure 3-20.
Chapter 3 Configuration Instructions Installation and Operation Manual N+1 Redundancy Status Menu Member of Redundancy Group: Yes Card Type.................: Secondary Device State..............: Online Frame Sync Pulse.............: Backplane Timeslot Management: Communication with System Mgr: Rear Card....................: Framers......................: State Change Count --------------------OK 0 OK 0 OK 0 OK 0 OK 0 [C]lear counters Figure 3-22.
Installation and Operation Manual Chapter 3 Configuration Instructions 22. To access any of the menus on the Protection Switch Main Menu, place your cursor on the desired field and press . Table 3-4. Protection Switch Submenu Functions Submenu Function Status View the status of the Switch box, whether a device has been switched, which slot a redundant device is protecting, and if the device is missing a cable, not present or okay. Utilities Reset the device.
Chapter 3 Configuration Instructions Installation and Operation Manual Table 3-5. DXC-100PSX Status Menu Field Descriptions Field Description Slot#: (display field) Displays the slot numbers in the N+1 Protection Switch, from 1 to 11. Card Type: (display field) Displays the type of card installed in the associated slot.
Installation and Operation Manual Chapter 3 Configuration Instructions Cooling Fan Controls The Protection Switch has a secondary function of providing auxiliary cooling for the DXC-100. There are three fans in the assembly used for the cooling system. The Fan Speed field in the Protection Switch Status Menu indicates the speed of the fans in response to the ambient temperature and the status of the fans. When the Protection Switch unit powers up, the fan speed default is Auto.
Chapter 3 Configuration Instructions Installation and Operation Manual Status Menu ----------Slot# Card Type Card Status Switch State Switch Status ---------------------------------------------------------------------------01 Narrowband Redundant Ok Normal Ok 02 Narrowband Primary Ok Normal Ok 03 Narrowband Primary Ok Normal Ok 04 Narrowband Primary Ok Normal Ok 05 Narrowband Primary Ok Normal Ok 06 Broadband '2' Primary Ok Normal Ok 07 Broadband '2' Redundant Ok Normal Ok 08 Card Not Present Not Present
Installation and Operation Manual 3.6 Chapter 3 Configuration Instructions Utilities Menu The DXC-100PSX Utilities Menu allows you to re-initialize the Protection Switch Controller Card as done upon power up. During this boot up cycle, no user data will flow. Since the configuration resides on the DSMC.2, the current N+1 Redundancy setup will be restored. Reset the Protection Switch Controller Card 1. From the DXC-100 Nest Summary Menu, place your cursor on the DXC-100PSX field and press . 26.
Chapter 3 Configuration Instructions Installation and Operation Manual The Switchover Command The DSMC.2 controls the NDR and determines that a switchover is necessary. The DSMC.2 directs the switchover to the redundant device in the Redundancy Group. Once the switchover occurs, the ports lose traffic. While the redundant device is in use, no other primary device failures can be switched. The primary device’s configuration is copied to the redundant device. The primary device’s configuration is preserved.
Installation and Operation Manual Chapter 3 Configuration Instructions Table 3-6.
Chapter 3 Configuration Instructions Installation and Operation Manual About Menu ---------Slot# Rear Card Rev ====================== 01 1 02 0 03 1 04 1 05 1 06 0 07 0 08 Not Present 09 Not Present 10 0 11 0 Software Version.........: 2.4a Software Release Date....: July 2, 2003 Software Checksum........: 6FC1 PSX Controller Card......: Rev 1 PSX Backplane............: Rev 1 Multi-Broadband Groups...: Enabled Figure 3-30. DXC-100PSX About Menu Field Descriptions for this menu are provided in Table 3-7.
Appendix A Replacing the DXC-100PSX Fan A.1 Scope The Protection Switch can detect a change in fan speed. The slow condition could be due to a failure of a fan such as worn bearings, open winding in the motor or shorted winding in the motor. If a fan fails, the entire fan assembly unit must be replaced. Note Before removing the fan assembly, make sure the fans are turned off. Refer to the procedure on changing the fan setting. A.2 Fan Assembly Replacement Procedure 1.
Appendix A Replacing the DXC-100PSX Fan Installation and Operation Manual 7. Place the replacement fan assembly into position making sure the wiring is clear of the Protection Switch chassis. Line up the fan assembly unit with the threaded bolts. Turn the knurled nuts until tight. 8. Replace the grille assembly. 9. Go back to the Status Menu, scroll down to the Fan Maintenance field and press to change the fan position to Auto. Note A-2 If a fan fails, the entire fan assembly must be replaced.
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