Quick tech specs
- Expansion module
- RS-232
- RS-530
- V.35
- SLIP
- 4 ports
- 28XX 2-pair
- 28XX V3PN
- 38XX
- 39XX
- HDLC
- PPP
- X.21
- RS-449
- RS-530A
- for Cisco 28XX
- 28XX 4-pair
- 29XX
- 38XX V3PN
Know your gear
The HWIC-4T is a 4-port multiprotocol high-speed WAN interface card (HWIC). Protocols supported are Async (SLIP), Async (PPP), HDLC, Bisync, and transparent.