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Cisco MWR 1941-DC-A Mobile Wireless Edge Router Hardware Installation Guide
OL-7872-04
Chapter 1 Product Overview
Cisco Network Modules
Interface Cards
The Cisco MWR 1941-DC-A router supports the following interface cards:
•
2-port T1/E1-RAN Optimization Interface Card: VWIC-2T1/E1-RAN for GSM and UMTS T1/E1
and IP Backhaul T1/E1
VWIC-2T1/E1-RAN
The 2-port T1/E1-RAN Optimization (VWIC-T1/EI-RAN) interface card supports GSM, UMTS, and IP
Backhaul T1/E1. For UMTS, the RAN sends T1/E1 Iub ATM calls to the AIM for ATM SAR functions
for ATM Adaptation Layer traffic for processing.
These cards are dual-port, T1/fractional T1 or E1/fractional E1, drop and insert multiplexers with
integrated T1 CSU/DSUs or E1 DSUs. Each port can be used as a either a T1 or an E1 interface.
The VWIC-2T1/E1-RAN will allow you to compress, multiplex, and optimize your GSM-Abis radio
traffic transmission across T1/E1 WAN connections used for backhaul between the cell site BTS and the
BSC.
The Cisco MWR 1941-DC-A router provides three VWIC interface slots.
Additionally, by inserting an NM-2W network interface module into the network interface slot of the
Cisco MWR 1941-DC-A router, you can add two more VWIC-2T1/EI-RAN cards.
Information is provided in separate publications.
•
For information on the VWIC-2T1/E1-RAN VWICs, see the
Cisco 2-port T1/E1-RAN Optimization
Installation Instructions
.
•
For software configuration information, see the
Cisco MWR 1941-DC-A Mobile Wireless Edge
Router Software Configuration Guide
.
These manuals are on Cisco.com (see the
“Obtaining Documentation, Obtaining Support, and Security
Guidelines” section on page xvi
for more information).
Cisco Network Modules
For implementation in a RAN-O solution with Cisco IOS Release 12.4(2)MR, the
Cisco MWR 1941-DC-A router also supports the following Cisco network module:
•
2-port WAN Card Slot Network Module (no LAN): NM-2W(=)
–
Supports up to two additional VWIC-2T1/E1-RAN cards
Additional information is provided in separate publications.
•
For instructions on installing the network module and for details on the network module and its
interfaces, see the
Cisco Network Modules Hardware Installation Guide
.
•
For software configuration information (see the
Cisco MWR 1941-DC-A Mobile Wireless Edge
Router Software Configuration Guide)
.
These manuals are available online at Cisco.com (see the
“Obtaining Documentation, Obtaining
Support, and Security Guidelines” section on page xvi
for more information).
