Specifications

4-12 Cisco MGX 8220 Reference, Release 4.1

High Speed Frame Service Module

The High Speed Frame Service Module (FRSM-HS1) is a two-card set consisting of a FRSM front

card and a 4-port X.21 back card or a 2-port HSSI back card. Up to 10 FRSM-HS1 card sets may be

installed in a shelf in slots 5 through 14. An illustration of a FRSM-HS1 front card is shown in

Figure4-7.

Figure4-7 Example FRSM-HS1 Front Card

The FRSM-HS1 is similar to the standard FRSM service module except that it supports either four

X.21 ports or two HSSI ports with each port capable of operating up to 10Mbit/s. The back cards

provide either four DB-15 connectors or two HSSI SCSI-II connectors.