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Compression Module
Model: NM-COMPR=
Cisco Compression Module - Expansion module - ISDN, Frame Relay, serial
The compression network module compresses and decompresses data passing through interfaces on other network modules or WAN interface cards in the router. The following interfaces are supported: Channelized T1 ISDN PRI; Channelized E1 ISDN PRI; ISDN BRI; Synchronous serial; Switched 56 kbps.