Cisco Cisco Catalyst 6000 Multilayer Switch Feature Card MSFC2 Guía De Información
All contents are Copyright © 1992–2004 Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement.
Page 1 of 6
Q & A
HIGH-DENSITY ANALOG (NM-HDA) NETWORK MODULE ON THE
CISCO 2600/2800/3600/3700/3800 SERIES MULTISERVICE
PLATFORMS
CISCO 2600/2800/3600/3700/3800 SERIES MULTISERVICE
PLATFORMS
OVERVIEW
The Cisco 2600/2800/3600/3700/3800 family of multiservice platforms seek to provide enterprise and service provider solutions that offer greater
flexibility when integrating voice and data applications. The High-Density Analog Network Module (NM-HDA) offers analog voice port density of
up to 8 FXO + 4 FXS, or up to 12 FXS + 4 FXO ports. Various combinations of FXS and FXO ports are supported by using different components.
Specific supported configurations are detailed below in the “Configuration Information” section—not all possible combinations are supported.
The NM-HDA itself contains 4 FXS ports and two 5421 DSPs. In addition, the NM-HDA offers two expansion module (EM) slots that can be filled
with combinations of a 4-port FXO module or an 8-port FXS module. A DSP expansion module is also available.
Q.
What is the NM-HDA-4FXS?
A.
It is a Network Module (NM) for the Cisco 2600, 2800, 3600, 3700 and 3800 series platforms that supports up to 8 FXO + 4 FXS, or up to 12
FXS + 4 FXO ports voice connections. The NM itself contains a 50-pin RJ-21 connector, 4 FXS ports and two 5421 DSPs. The NM has two
expansion slots where the 4-port FXO and 8-port FXS modules can be added. A DSP expansion module can also be added. The illustration below
shows the different components.
Figure 1.
Q.
Which platforms support the NM-HDA?
A.
All platforms within the Cisco 2600, 2800 (except 2801), 3600 (except 3620), 3700 and 3800 series.
Q.
What are the goals of the NM-HDA?
A.
To provide a high density analog voice gateway for:
•
enterprise and managed services applications
•
branch office fax machines and phones
•
analog PBXs and Key Systems, thereby not requiring upgrades to existing telephony equipment when more than 4 analog ports is required
•
low-cost analog phone connectivity for branch offices to participate in voice transport or Call Manager controlled networks
•
analog PSTN connectivity for branch offices with IP Phones and SRST functionality
•
ITSP Analog FXO Gateway