Cisco 3825 Hardware Installation Guide - Page 303
Expansion Modules for Cisco High-Density Extension Modules, Base Board, FXS or DID, Total Ports, Total
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Chapter 28 Connecting Cisco High-Density Extension Modules Cisco High-Density Analog and Digital Extension Module for Voice and Fax Expansion Modules for Cisco High-Density Extension Modules The Cisco high-density extension module supports up to two expansion modules (EMs) in the configurations shown in Table 28-1. Table 28-1 Example Hardware Configurations Supported on Cisco High-Density Extension Modules (EVM-HD-8FXS/DID) Total Ports BRI Base Board FXS or (FXS or DID) EM0 EM1 DID FXS FXO Ports EVM-HD-8FXS/ - - 8 - - - DID EM-HDA-8FXS - 8 8 -- EM-HDA-8FXS EM-HDA-8FXS 8 16 - - EM-HDA-8FXS EM-HDA-3FXS/4FXO 8 11 4 - EM-HDA-8FXS EM-HDA-6FXO 8 8 6 - EM-HDA-8FXS EM-4BRI-NT/TE 8 8 -4 EM-HDA-3FXS/4FXO - 8 3 4 - EM-HDA-3FXS/4FXO EM-HDA-3FXS/4FXO 8 6 8 - EM-HDA-3FXS/4FXO EM-HDA-6FXO 8 3 10 - EM-HDA-3FXS/4FXO EM-4BRI-NT/TE 8 3 4 4 EM-HDA-6FXO - 8 - 6 - EM-HDA-6FXO EM-HDA-6FXO 8 - 12 - EM-HDA-6FXO EM-4BRI-NT/TE 8 - 6 4 EM-4BRI-NT/TE - 8 - - 4 EM-4BRI-NT/TE EM-4BRI-NT/TE 8 - - 8 Bchannel - - - - - 8 - - - 8 - - 8 8 16 Total Voice Sessions 8 16 24 23 22 24 15 22 21 23 14 20 22 16 24 The 4-port digital voice/fax expansion module (EM-4BRI-NT/TE) operates as an S/T interface and is capable of NT or TE functionality. In NT mode, the expansion module can supply in-line power for the far end of the connection. The 7-port analog voice/fax expansion module (EM-HDA-3FXS/4FXO) provides three additional FXS ports and four FXO ports for off-premises analog voice applications. The 6-port analog voice/fax expansion module (EM-HDA-6FXO) provides six FXO ports for off-premises analog voice applications. The sixth port (port 5) provides a trunk bypass (TBP) or power failover capability. The 8-port analog voice/fax expansion module (EM-HDA-8FXS) adds an additional eight FXS ports to the Cisco high-density extension module. Tip When router power is off, connect an analog phone to the FXO line to make a call. (See the "Connecting Cisco High-Density Extension Modules to the Network" section on page 28-6 for more information). OL-2485-20 Cisco Network Modules Hardware Installation Guide 28-3