2-34
Cisco MGX 8800/8900 Series Hardware Installation Guide
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
Chapter2 Illustrated Card List for MGX Switches and the MGX 8880 Media Gateway
Front Cards
FRSM-12-T3E3

Supported models: MGX 8850 (PXM45), MGX 8850/B (PXM45)

The FRSM-12-T3E3 is a high-density, double-height service module that enables Frame Relay
communications over an ATM network. It provides 12 ports of unchannelized T3 Frame Relay with 622
Mbps of ATM throughput.
Note As of MGX Release 4, T3 support is operational and E3 is planned for a future release.
The FRSM-12-T3E3 typically connects to a Frame Relay router. Communications through the ATM
network are accomplished by means of SPVCs set up between the originatin g device and a remote
destination device.
When the FRSM-12-T3E3 is combined with a back card, a card set is created. Table 2-1 6 provides
information about the FRSM-12-T3E3, interface, and corresponding back card.
Note For technical specifications for the FRSM12s, see the “Double-Height Service Module Specifications”
section on page A-2.
Table2-16 FRSM-12-T3E3, Interfaces, and Supported Back Cards
FRSM12
Interface
Connections
Number of Lines
Supported
Types of Lines
Supported Supported Back Card
FRSM-12-T3E3 NNI/UNI Up to 12 T3/E3 Frame Relay •SMB-6-T3E3