Cisco Cisco Catalyst 6000 Multilayer Switch Feature Card MSFC2 Data Sheet
Data Sheet
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Cisco Channelized T1/E1 and ISDN PRI Modules for the Integrated
Services Routers
Services Routers
The Cisco
®
Channelized T1/E1 and ISDN PRI High-Speed WAN Modules combine multiple T1/E1 WAN
connectivity-Channelized T1/E1 and ISDN Primary Rate Interface (PRI), in the same card. Applications
include fractional or full T1/E1 WAN connectivity, ISDN PRI for primary WAN link or WAN backup, and
dial access aggregation. With flexible WAN connectivity options, together with integrated routing, security,
voice, and wireless capabilities, the Cisco Integrated Services Routers can meet every need of enterprise-
class branch offices today and in the future. Three versions are available, 1- and 2-port cards (Figure 1) in
a single-wide high-speed WAN interface card (HWIC), and a 8-port cards (Figure 2) in a single-wide
network module. The different versions help enable customers to deploy different port densities according
to the needs of individual offices.
The modules can be used in T1 or E1 networks, selectable by software configuration. The integrated channel service
unit/data service unit (CSU/DSU) function allows customers to consolidate customer premises equipment (CPE).
The modules support balanced and unbalanced E1 connectivity and conform to the G.703 and G.704 standards for
unframed and framed E1 modes. The Channelized T1/E1 and ISDN PRI modules work with the digital modem
module in the Cisco 2800, 2900, 3800, and 3900 Series Integrated Services Routers to provide V.90- and V.92-
compliant digital dial access aggregation.
The 1- and 2-port Channelized T1/E1 and ISDN PRI HWICs are updated versions of the E1/T1 ISDN PRI network
modules, with the same functions and performance in a compact form factor of HWIC. You can save the network
module slots for other LAN/WAN connectivity, and your deployment flexibility is greatly enhanced.
Figure 1. 1- and 2-Port Channelized T1/E1 and ISDN PRI High-Speed WAN Interface Card
Figure 2. 8-Port Channelized T1/E1 and ISDN PRI Network Module