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Introduction
Cisco's
Packet-over-T3/E3 network module for the Cisco
2600, 3600, and 3700 series offers the first
software-configurable T3/E3 product from Cisco.
This flexible network module allows the customer
to switch between T3 and E3 applications with
a single Cisco IOS command. This feature provides
customers with unparalleled investment protection
by allowing the service provider or enterprise
customer to stock only a single product that
can be deployed internationally. The demand
for increased bandwidth has led to growth
in clear-channel T3/E3 deployment. This new
Packet-over T3/E3 network module (part number
NM-1T3/E3) eliminates the need for an external
data service unit (DSU), reduces provisioning
costs, and provides highly manageable T3/E3
line termination. The module provides an integrated
line interface unit (LIU) DSU that allows
T3 or E3 lines to be directly terminated on
a Cisco router, eliminating the need for external
DSU equipment. This simplifies the T3/E3 line
management, reduces provisioning cost, and
frees valuable rack space. Offering unprecedented
flexibility in provisioning clear-channel
T3 or E3 connections, the Cisco T3/E3 network
modules provide support for the proprietary
subrate and scrambling features of T3 DSU
vendors Digital Link, Larscom, and ADC Kentrox.
Subrate support in the Cisco T3/E3 Network
Module maximizes the utility of these products
in service provider environments for tiered
DS3 services. By simultaneously supporting
interoperability with a wide range of third-party
DSU vendors, this network module offers the
flexibility to support installed equipment
without locking customers into a proprietary
solution. The Cisco T3/E3 Network Module provides
direct connectivity to a T3 line for full-duplex
communications at the T3 rate of 44.736 MHz
and full-duplex E3 communications at 34.368
MHz. Each T3 or E3 port consists of a pair
of 75-ohm BNC coaxial connectors (Type RG-59),
one for transmit data and one for receive
data, along with six LED indicators for line
status. The Cisco 2650XM and 51XM, Cisco 2691,
Cisco 3660, and the Cisco 3725 support a single
T3/E3 network module. The Cisco 3745 supports
up to two single-port Cisco T3/E3 network
modules. Because the Cisco T3/E3 Network Module
is supported in Cisco IOS feature sets, including
IP Only, there are no additional memory requirements
for any supported platforms.
Specifications
- Product
Description Cisco expansion module
- Device
Type Expansion module
- Form
Factor Plug-in module
- Dimensions
(WxDxH) 7.1 in x 7.2 in x 1.5 in
- Data
Link Protocol ATM, HDLC, Frame Relay, PPP
- Line
Rate T-3/E-3
- Compliant
Standards ANSI T1.102, ANSI T1.107
- System
Requirements Cisco IOS 12.2(11)YT
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