Cisco Cisco Catalyst 6000 Multilayer Switch Feature Card MSFC2 Guide De Montage

Connecting Cisco High-Density Extension Modules to the Network

Cisco High-Density Analog and Digital Extension Module for Voice and Fax

Connecting Cisco High-Density Extension Modules to the Network

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 Service Modules and Network Modules”

section in

Chapter 1, “Overview of

Cisco Network Modules and Service Modules for Cisco Access Routers.”

Caution

To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety,
connect the 8-port analog voice/fax expansion module (EM-HDA-8FXS and EM3-HDA-8FXS) and
4-port digital voice/fax expansion module (EM-4BRI-NT/TE) only to intrabuilding or nonexposed
wiring or cabling. The intrabuilding cable must be shielded and the shield must be grounded at both ends.

Cisco High-Density Extension Module LEDs and Interfaces

Figure 1

shows high-density extension module LEDs and interfaces.

Figure 1

Cisco High-Density Extension Module (EVM-HD-8FXS/DID) LEDs

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 1

EM0: Green indicates presence of an installed
expansion module in slot EM0.

EN: Green indicates that the network module
has passed self-test and is available to the
router.

EM1: Green indicates presence of an installed
expansion module in slot EM1.

RJ-21 connector for use with RJ-21 cable.

103159

EM0

EM1

EVM-HD

8FXS/DID

None