4-Port Async/Sync Serial HWIC

Model: HWIC-4A/S=

Cisco High-Speed WAN Interface Card - Serial adapter - HDLC, RS-232, PPP, RS-530, X.21, V.35, RS-449, SLIP, RS-530A - 4 ports

HWIC-4A/S is a 4-port multiprotocol low speed asynchronous/synchronous HWIC. Protocols supported are Async (SLIP), Async (PPP), HDLC, Bisync, and transparent.

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