Cisco 3825 Hardware Installation Guide - Page 124

Upgrading ISDN BRI Network Modules Chapter 6 Connecting ISDN BRI Network Modules Upgrading ISDN BRI Network Modules If your Cisco 3600 series router contains an ISDN BRI network module (product numbers NM-4B-S/T, NM-4B-U, NM-8B-S/T, or NM-8B-U) and a digital modem network module (product numbers NM-6DM, NM-12DM, NM-18DM, NM-24DM, or NM-30DM), your ISDN BRI network module may need to be upgraded to the minimum revision shown in Table 6-3. Earlier revisions of the ISDN BRI network module cannot send modem calls to the digital modem network module. Table 6-3 ISDN BRI Network Module Upgrade Revisions Module NM-4B-S/T NM-4B-U NM-8B-S/T NM-8B-U Minimum Revision 800-01236-03 800-01238-06 800-01237-03 800-01239-06 If your BRI module is the wrong revision, you see a message similar to this one when the router boots: The BRI network module in slot 0 is incompatible with the digital modems installed in the router. To determine the revision level, you can examine the network module itself (outside the router) or use the Cisco IOS show diag command. The label on the module board should show a part number beginning with 800-, corresponding to Table 6-3. A BRI S/T module whose part number ends with -01 or -02 needs to be upgraded, as does a BRI U module whose part number is lower than -06. The output of the show diag command looks similar to the following: Port adapter is analyzed Port adapter insertion time unknown Hardware revision 1.0 Board revision A0 Serial number 4152626 Part number 800-01236-01 Test history 0x0 RMA number 00-00-00 EEPROM format version 1 EEPROM contents (hex): 0x20: 01 26 01 00 00 3F 5D 32 50 04 CC 01 00 00 00 00 0x30: 50 00 00 00 96 11 04 17 FF FF FF FF FF FF FF FF To order network module upgrades, see the "Obtaining Technical Assistance" section on page xi. Cisco Network Modules Hardware Installation Guide 6-6 OL-2485-20