C H A P T E R
28-1
Cisco Network Modules Hardware Installation Guide
OL-2485-20
28
Connecting Cisco High-Density Extension
Modules
This chapter describes how to connect Cisco high-density extension modules to the network and contains
the following sections:
•
Cisco High-Density Analog and Digital Extension Module for Voice and Fax, page 28-1
•
Installing Expansion Modules on Cisco High-Density Extension Modules, page 28-4
•
Connecting Cisco High-Density Extension Modules to the Network, page 28-6
•
Cisco High-Density Extension Module Cable Pinouts, page 28-9
Tip
To determine whether your router supports a specific network module, see
Table 1-5 on page 1-15
.
Cisco High-Density Analog and Digital Extension Module for
Voice and Fax
The Cisco high-density analog and digital extension module for voice and fax is available as an 8-port
analog voice module (EVM-HD-8FXS/DID). Each port can be configured in Foreign Exchange Station
(FXS) or Direct Inward Dialing (DID) mode through Cisco IOS software commands.
Note
FXS supports on-premises applications only.
Cisco high-density extension modules provide an integrated high-density analog and digital voice
interface for small or medium branch offices. Together with certain expansion modules (see the
“Expansion Modules for Cisco High-Density Extension Modules” section on page 28-3
), the Cisco
high-density extension module provides a maximum of 24 analog voice ports with 8 ports of DID
capability.
Note
Cisco high-density extension modules can only be used in certain slots of modular access routers. To
determine which slots on your router support high-density extension modules, see the
“Platform and Slot
Limitations for Cisco Network Modules”
section in
Chapter 1, “Overview of Cisco Network Modules
for Cisco Access Routers.”