Cisco PA-4T+=

PA-4T+ Four Serial Port Adapters for Cisco 7000 Series Routers The four-port adapter (PA-4T+) provides four synchronous serial ports. Each port supports full-duplex operations at T1 and E1 speeds. A single port can support up to E2 speeds.

Each port also supports a variety of interface types, determined by the separately purchased cable type connected to it. Supported interfaces include EIA/TIA-232, EIA/TIA-449, V.35, X.21, and EIA-530, allowing flexible deployments as either DCE or DTE equipment. The four-port adapter is the most cost-effective solution for low-traffic WAN connections or remote Cisco 7200 installations.

The PA-4T+ port adapter requires only a single slot in a Cisco 7200 Series router. For Cisco 7500 Series routers, it requires one of the two available adapter slots on a Versatile Interface Processor (VIP2).