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Cisco VG350 Voice Gateway Hardware Installation Guide
OL-25970-01
Chapter 2 Cisco Double-Wide High Density Analog Service Modules
Double-Wide High Density Analog Service Module Overview
Double-Wide High Density Analog Service Module Overview
The Double-Wide High Density Service Module (DWSM) is supported on the following platforms:
• Cisco 3945
• Cisco 3945e
• Cisco 3925
• Cisco 3925e
• Cisco 2951
The modules can be plugged in the following DWSM slots of the following platforms:
• On Cisco 3945 and Cisco 3945e - only on slot 4.
• On Cisco 3925, Cisc0 3925e and Cisco 2951 - only on slot 2.
Table 2-1 shows the comparison between Cisco SM-D-72FXS and SM-D-48FXS-E.
Table 2-1 Feature comparison of SM-D-72FXS and SM-D-48FXS-E
SM-D-72FXS SM-D-48FXS-E
Number of FXS Ports 72 (Port 0 to Port 71) 48 (Port 0 to Port 47)
Number of Ports Configurable as
FXS-E
4
(Port 0 to Port 3)
48
(all ports)
Max RENs/Port 5 REN/FXS Port
2 REN/FXS-E Port
5 REN/FXS Port
2 REN/FXS-E Port
Total REN Per DWSM Module 40 30
RJ-21 Connectors 3 2
FXO Bypass Ports
1
1. Each FXO Bypass Port are made up of two RJ-11 connectors for PSTN In and Out.
2
(FXO Bypass Port 0: PSTN to
Port 46)
FXO Bypass Port 1: PSTN to
Port 47)
2
(FXO Bypass Port 0: PSTN to
Port 46)
FXO Bypass Port 1: PSTN to
Port 47)
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