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3Com S24x, S26x, S27x Figure 4-2. Removing the Front Panel Cover

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4-6 Maintenance

Removing/Replacing Front Panel Cover

Example Figure 4-2 shows an example of disconnecting the front panel cover.

Figure 4-2. Removing the Front Panel Cover

Thumbscrew

LED

Display

Card

Auxiliary Fan

Front Panel Cover

Ribbon Cable

Contents

Main Notice Restricted Rights Notification for U.S. Government Users Restricted Rights Legend Notice Notice (continued) Proprietary Material Page Contents Contents (continued) About This Manual This Chapter... Describes: About This Manual (continued) Chapter 1 About the PathBuilder S24x, 26x, and 27x switch Figure 1-1. PathBuilder S24x, 26x, and 27x Switch Applications Figure 1-2. Performance Branch Node Example Figure 1-3. Regional Concentrator With Public Network Example Figure 1-4. Regional Concentrator Example Page Page Hardware Components Figure 1-6. PathBuilder S24x, 26x, and 27x Switch Component Description Component Description (continued) Enclosure Motherboard Figure 1-7. Motherboard Figure 1-8. FLASH SIMM Figure 1-9. CMEM SIMM Slot Number Port Number Associated Card Port Number Use Back Panel Figure 1-10. PathBuilder S24x, 26x, and 27x Switch Back Panel TI Dual Port Digital PBX Interface Card Figure 1-11. T1 Dual Port Digital PBX Interface Card Cable Description Function Page E1 Dual Port Digital PBX Interface Card Figure 1-12. E1 Digital PBX Interface Card Cable Description Function DSPM/SM Card Figure 1-13. DSPM/SM Card Figure 1-14. Cabling T1/E1 Card to DSPM/SM Cards DSPM Card with Analog E&M Interface About the PathBuilder S24x, 26x, and 27x switch 1-27 Figure 1-15. DSPM/E&M Card Page Setting Jumpers for DSPM Card with Analog E&M Interface Figure 1-16. UK Complex Impedance Figure 1-17. Germany Complex Impedance About the PathBuilder S24x, 26x, and 27x switch 1-31 Jumper Locations Set the jumpers to the positions as shown in Figure1-18. Figure 1-18. Jumper Locations for DSPM E&M Card Figure 1-19. Installing Jumpers DSPM Card with FXS Analog Interface About the PathBuilder S24x, 26x, and 27x switch 1-33 Figure 1-20. DSPM Card with Analog FXS Interface Page DSPM Host Card with FXO Analog Interface Figure 1-21. DSPM/HC Card with Analog FXO Daughtercard Page -48V Ringer/Power Supply Card and Enclosure About the PathBuilder S24x, 26x, and 27x switch 1-39 Cables Required The -48V ringer/power supply card is shipped with one cable with six connectors. Figure 1-22. Standard -48V RInger/Power Supply Card and Enclosure 1-40 About the PathBuilder S24x, 26x, and 27x switch Figure 1-23. Enhanced -48V RInger/Power Supply Card and Enclosure 10BaseT Transceiver Figure 1-24. 10BaseT Transceiver Radio Frequency Interference Regulations Telecommunications Regulations Page FCC and Telephone Company Procedures and Requirements FCC Information Type of Interface USOC Jack Connector REN/Service Code Facility Interface Code Page Page Page Before Installing Your PathBuilder S24x, 26x, and 27x Switch Vors ich t Page Unpacking The PathBuilder S24x, 26x, and 27x Switch Rackmount Kit Figure 2-1. The PathBuilder S24x, 26x, and 27x Switch Rackmount Kit Page Installing the PathBuilder S24x, 26x, and 27x Switch in an Equipment Rack Step Action Description Page Preparation and Unpacking 2-11 Installing the PathBuilder S24x, 26x, and 27x Switch in an Equipment Rack Steps for Rackmount Assembly Figure 2-3 shows the steps for rackmount assembly. Figure 2-3. PathBuilder S24x, 26x, and 27x Switch Rackmount Assem- bly 2-12 Preparation and Unpacking Installing the PathBuilder S24x, 26x, and 27x Switch in an Equipment Rack Figure 2-4. Installing the PathBuilder S24x, 26x, and 27x Switch in Rack- mount Assembly Chapter 3 PathBuilder S24x, 26x, and 27x Switch Hardware Installation Page Setting DIP Switches Figure 3-1. Switch Blocks on Motherboard Set Switch... To... For... Installing the DSU DIM Figure 3-2. DSU DIM Installation Vors ich t Step Action Result/Description Set Switch... To.... For... Configuring the PathBuilder S24x, 26x, and 27x Switch for DSU Operation DSU Input and Output Signaling Signal Description Figure 3-3. Diagnostics Menu Signal Description (continued) Page Troubleshooting DSU Installation Installing DIMs Figure 3-4. Installing a DIM Vors ic ht Installing SIMMs Vors ic ht Figure 3-5. Installing SIMMs Installing I/O Cards Installing a T1 or E1 Dual Port Digital PBX Interface Card Page Page Page Page Cabling the PathBuilder S24x, 26x, and 27x Switch Step Action Result/Description Installing the Transceiver Figure 3-7. Transceiver Power-Up Diagnostics/Verification Function Description Page Page Full Mesh Cluster Cabling 3-28 PathBuilder S24x, 26x, and 27x Switch Hardware Installation Full Mesh Cluster Cabling Mesh Diagram Figure 3-8 shows how a full mesh application is cabled. Figure 3-8. Mesh Diagram Chapter 4 Maintenance Page Removing/Replacing Top Cover Figure 4-1. Removing the Top Cover Removing/Replacing Front Panel Cover 4-6 Maintenance Removing/Replacing Front Panel Cover Example Figure 4-2 shows an example of disconnecting the front panel cover. Figure 4-2. Removing the Front Panel Cover Removing/Replacing Power Supply 4-8 Maintenance Removing/Replacing Power Supply Example Figure 4-3 shows an example of removing the power supply. Figure 4-3. Removing the Power Supply Removing/Replacing PathBuilder S24x, 26x, and 27x Switch Cards Page Figure 4-5. Removing an Expansion Card Replacing PathBuilder S24x, 26x, and 27x Switch Motherboard Figure 4-6. Removing the Motherboard Removing/Replacing the Lithium Battery Page Page Chapter 5 Channelized Data Application Example Figure 5-1. Application Example Configuring Channelized Data Configure this Record/Table To do this... Page Configuring T1 and E1 Physical Ports 5-6 Channelized Data Configuring Channelized Data Port Record Figure 5-2 shows the navigational path to the T1 and E1 configuration parameters. Figure 5-2. Example of the Port Record for the Physical Port for T1 and E1 Connections T1 Port Parameters (continued) Page Page Page Page E1 Port Parameters Page Page Page Page Configuring Virtual Ports on the PathBuilder S24x, 26x, and 2 7x Switch Figure 5-3. Port Configuration for Channelized Data Option Configuring Virtual Port Mapping Table Figure 5-4. Virtual Port Mapping Table Page Page Appendix A Cables Name Pin DTE Position Function/Signal Position Function/Signal Name Pin DCE Signal Name Pin DTE Signal Name Pin DCE Position Function/Signal Signal Name Pin DTE Pin DCE Position V.11 Function/ Signal Pin DTE Signal Pin DCE Position V.11 Function/ Signal Pin DTE Signal Ethernet Cable Pinouts Pin Signal Page Page Appendix B PathBuilder S24x, 26x, and 27x Switch Specifications Page Appendix C PathBuilder S24x, 26x, and 27x Switch Error Codes LED Service Numeric Display Status LED Description/Comments Numeric Display (continued) Status LED Description/Comments LED Service Appendix D Technical Support Country Data Rate Telephone Number Country Telephone Number Country Telephone Number Country Telephone Number Fax Number Index