Cisco Cisco NM-2V Two Voice Fax Interface Card Slot Network Module Manual Técnica
High−Density Analog (FXS/DID/FXO) and Digital
(BRI) Extension Module for Voice/Fax (EVM−HD)
(BRI) Extension Module for Voice/Fax (EVM−HD)
Document ID: 65323
Contents
Introduction
Prerequisites
Requirements
Components Used
Conventions
Background Information
Key Features
FXS and FXO Interfaces
Network Clock Timing
Configure
Verifying
Network Diagram
Configurations
Troubleshoot
Connecting Calls from Groundstart Signaling Voice Port
Prerequisites
Requirements
Components Used
Conventions
Background Information
Key Features
FXS and FXO Interfaces
Network Clock Timing
Configure
Verifying
Network Diagram
Configurations
Troubleshoot
Connecting Calls from Groundstart Signaling Voice Port
Introduction
The High−Density Analog (FXS/DID/FXO) and Digital (BRI) Extension Module for Voice/Fax (EVM−HD)
feature delivers a higher−density integrated analog/digital voice interface. The EVM−HD−8FXS/DID
baseboard network module provides eight Foreign Exchange Station (FXS) or direct inward dialing (DID)
ports. This network module accesses digital signal processor (DSPs) modules on the motherboard, instead of
using onboard DSPs. You can increase the port density by plugging in up to two optional expansion modules
in any combination:
feature delivers a higher−density integrated analog/digital voice interface. The EVM−HD−8FXS/DID
baseboard network module provides eight Foreign Exchange Station (FXS) or direct inward dialing (DID)
ports. This network module accesses digital signal processor (DSPs) modules on the motherboard, instead of
using onboard DSPs. You can increase the port density by plugging in up to two optional expansion modules
in any combination:
EM−HDA−8FXS−−8−port FXS voice/fax expansion module
•
EM−HDA−3FXS/4FXO−−3−port FXS and 4−port FXO voice/fax expansion module
•
EM−HDA−6FXO−−6−port FXO voice/fax expansion module
•
EM−4BRI−NT/TE−−4−port ISDN BRI expansion module
•
PVDM2 DSP modules are used in combination with the EVM−HD−8FXS/DID baseboard and its expansion
modules. PVDM2 modules are available separately and installed in the DSP module slots located inside the
router chassis.
modules. PVDM2 modules are available separately and installed in the DSP module slots located inside the
router chassis.
Prerequisites
Requirements
Before attempting this configuration, ensure that you meet these requirements:
Insert the network modules in the correct slots of the router at your installation.
•
Install DSPs on the baseboard and configure the DSPs with a voice−enabled image of Cisco IOS
Release 12.3(8)T4 or 12.3(11)T or a later release.
Release 12.3(8)T4 or 12.3(11)T or a later release.
•
The minimum Cisco IOS Release for this feature is Release 12.3(8)T4. For optimum results, use
•