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- Description
- Specifications
Four Smart Serial ports sit on the HWIC-4T, a Cisco 4-port serial WAN interface card for Integrated Services Routers. Each port runs synchronous at up to 8 Mbps or asynchronous at up to 230.4 kbps, and Bisync works too, as do lead manipulation and network clock synchronization. With up to 8 Mbps per port, the card fits low- and medium-density WAN aggregation of remote sites.
Cable choice sets the electrical standard: EIA-232, EIA-449, X.21 and V.35 cables come as a DTE plug or a DCE socket, while the EIA-530 and EIA-530A cables are DTE plug only. Each cable is 10 ft (3 m), and the ports use the same connectors and cabling as the 2-port Serial WIC (WIC-2T).
The card works in Cisco 2800, 2900, 3800 and 3900 Series routers and is not supported in the Cisco 1841 or 1941. It is a single-wide HWIC with no slot restrictions and runs in all Cisco IOS feature sets. For a 16-port asynchronous card from the same module list, see the HWIC-16A 16-port asynchronous card; further WAN cards are in the Cisco interface card category.
| Part number | HWIC-4T |
| Type | 4-port serial WAN interface card (HWIC) |
| Ports | 4 x Smart Serial |
| Synchronous speed | Up to 8 Mbps per port |
| Asynchronous speed | Up to 230.4 kbps per port |
| Other support | Bisync, lead manipulation and clock synchronization |
| Cables and standards | CAB-SS Smart Serial cables, 10 ft (3 m), for V.35, EIA-232, EIA-449, X.21 (DTE or DCE) and EIA-530, EIA-530A (DTE) |
| Form factor | Single-wide HWIC, no slot restrictions |
| Not supported in | Cisco 1841, 1941 |
| Compatible with | Cisco 2800, 2900, 3800 and 3900 Series Integrated Services Routers |