Data Sheet
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Table 1. Different Digital Modem Options Available to Cisco 3600, 3700, and 3800 Series Customer
1
Product Number Product Description
NM-6DM 6 digital modem network module
NM-12DM 12 digital modem network module
NM-18DM 18 digital modem network module
NM-24DM 24 digital modem network module
NM-30DM 30 digital modem network module
MICA-6MOD 6 digital modem upgrade card for the Cisco 3600 digital modem network modules
MMTL-3600 Managed Modem Software License (available in blocks of 6 modems)
Features At A Glance
●
The product offers up to 30 digital modems per Cisco 3620, 3725, or 3825.
●
The digital modem network module offers up to 60 digital modems per Cisco 3640, 3745,
or 3845.
●
The module offers up to 120 digital modems in a Cisco 3660.
●
The network module requires one slot in a Cisco 3600, 3700, or 3800.
●
Each network module supports up to 30 digital modems.
●
Each modem is fully software upgradeable.
●
Speeds up to 56 kbps (V.90 and V.92
2
) are supported.
●
The module supports V.42 and V.44 compression algorithms.
●
The number of modems per chassis can be easily increased on site.
●
LEDs indicate when the network module is enabled or when modem banks are in use.
●
The network module supports PRI, BRI, Channelized T1 (CT1), and R2 signaling
●
The network module offers V.110 support.
Digital Modem Features/Benefits
The Cisco 3600, 3700, and 3800 Series, installed with the digital modem network modules, offer
one of the most flexible, scalable, manageable, and high-performance dial access solutions
available in the market today.
The digital modem network modules utilize either the single or dual PRI network module, the 4-
and 8-port BRI network modules, or the mixed-media Fast Ethernet and PRI network module
(Cisco 3600 only) to support up to 90 remote modem users (using two digital network modules), at
speeds up to 56 kbps. Each network module supports up to 30 digital modems. Flexible LAN
topologies, including Ethernet, Fast Ethernet, and Token Ring, are supported.
The internal digital modem network module is available with 6, 12, 18, 24, and 30 modems
preinstalled, and can also be upgraded on site, from, say, 18 to 24 modems, as simply as
upgrading computer memory. This scenario gives the maximum flexibility to grow a dial-in solution
as the remote user base grows.
1
These digital modem network modules must operate in conjunction with a TI, EI, Primary Rate Interface
(PRI), or Basic Rate Interface (BRI) network module. For details on supported PRI network modules, see the
"Technical Specifications" section.
2
V.92 and V.44 support is available initially in Cisco IOS
®
12.2(11)YT. This support requires Portware (PW)
Version 2.9.1.0 on the Cisco 3640 and 3640A, 3660, 3725, 3745, 3825, and 3845. Support for the Cisco 3620
will be added via the sixth Cisco IOS 12.2T release.
2
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