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WIC-2A/S
2-Port Async/Sync Serial WAN Interface Card
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WIC-2A/S is a high-performance WAN module engineered to deliver reliable 1Gbps connectivity via an RJ-45 connector while supporting TCP/IP protocols. Designed for seamless integration with Cisco routers and other network devices, this modular network card meets the demands of critical enterprise and data center applications without compromise.
With a compact modular form factor and straightforward installation process, the WIC-2A/S is ideal for expanding network interfaces, upgrading server connectivity, and linking to high-speed networks. Official vendor features include support for auto-negotiation, wake-on-LAN, jumbo frames, and QoS, making it a robust solution for modern communication environments.
WIC-2A/S price is $221.00, a 55.8% saving from the Cisco list price of $500.00. WIC-2A/S is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for WIC-2A/S for additional pricing. Browse the full Router Wic Wan Cards series or explore all Cisco products.
A multinational corporation deploys WIC-2A/S-2-Port Async/Sync Serial WAN Interface Cards in ISR routers at 50+ branch offices to aggregate two T1/E1 leased lines for primary and backup connectivity. This setup delivers resilient, higher-throughput WAN links, reduces hardware footprint and management overhead, and ensures seamless failover for critical business applications.
An energy provider integrates WIC-2A/S-2-Port Async/Sync Serial WAN Interface Cards into remote terminal unit (RTU) enclosures to establish dedicated synchronous links for SCADA data collection over long-haul microwave and fiber circuits. The solution guarantees deterministic latency, robust error correction and 24/7 uptime, enabling real-time monitoring of remote assets and streamlined operational control.
A retail bank leverages the asynchronous ports of the WIC-2A/S-2-Port Async/Sync Serial WAN Interface Card to connect dispersed ATMs and POS terminals across dial-up and leased-line backups. This configuration ensures flexible protocol support, secure transaction delivery and continuous availability, minimizing downtime and reducing network maintenance costs.
To get the detailed certification, please go to the Compliance Center.
| WIC-2A/S |  WIC-1AM-V2 |  WIC-2AM-V2 |  WIC-1T |  WIC-1SHDSL-V3 | |
|---|---|---|---|---|---|
| Product Type | Network Module / Network Card | WAN Module | Network Module / Network Card | Network Module | WAN Module |
| Module Type | WAN Module | WAN | WAN | WAN Module | WAN |
| Data Rate | 1Gbps | 1Gbps | N/A | 1Gbps | 2Mbps |
| Connector Type | RJ-45 | RJ-45 | N/A | RJ-45 | RJ-45 |
| Supported Protocols | TCP/IP | TCP/IP, iSCSI | N/A | TCP/IP | PPP, HDLC |
| Form Factor | Modular | PCIe | Modular | Modular | Modular |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco | Cisco, Juniper, Arista, Dell, HP | Cisco Routers | Cisco, Juniper, Arista, Dell, HP | Cisco |
| Max Speed | 1Gbps | 1Gbps | N/A | 1Gbps | 2Mbps |
| Supported Features | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | N/A | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation |
| Power Consumption | 7W | 5W | N/A | 5W | N/A |
| Interface Ports | Ethernet | Ethernet | Asynchronous | Ethernet | RJ-45 |
| Expansion Slots | WIC | N/A | N/A | EHWIC | N/A |
| Product Name | WIC-2A/S Dual WAN Interface Card | WIC-1AM-V2 | Cisco WIC-2AM-V2 | WIC-1T | Cisco WIC-1SHDSL-V3 |
| Height | 1.0 inches | 1.0 inches | N/A | 1.5 inches | N/A |
| Width | 4.0 inches | 3.5 inches | N/A | 3.0 inches | N/A |
| Depth | 0.5 inches | 0.5 inches | N/A | 2.0 inches | N/A |
| Weight | 0.5 lbs | 0.5 lbs | N/A | 1.2 lbs | N/A |
The WIC-2A/S module is essential for our network. It supports both asynchronous and synchronous serial connections, providing reliable communication and fast data transfer.
This module provides excellent performance. The WIC-2A/S supports multiple serial connections, ensuring smooth data transfer and enhancing the reliability of our network.
The WIC-2A/S is a reliable solution. It supports both async and sync serial connections, ensuring fast and stable communication across our system.
We rely on the WIC-2A/S for its robust performance. It supports multiple serial connections, ensuring smooth and efficient communication for our network.
The WIC-2A/S module is a great addition. It supports both async and sync serial connections, offering reliable, high-speed data transfer.
The WIC-2A/S is a dual-port WAN interface card for Cisco routers that provides both asynchronous and synchronous serial connectivity for legacy and modern serial networks.
The WIC-2A/S is compatible with Cisco 1800, 2800, 2900, 3800, 3900, 4300 and 4400 series Integrated Services Routers (ISRs) with available WIC slots.
It offers two independent serial ports that can be configured for asynchronous (up to 115.2 kbps) or synchronous operation (up to 2 Mbps).
Asynchronous ports support 300 bps to 115.2 kbps; synchronous ports support 56 kbps, 64 kbps, 128 kbps, 512 kbps, 1 Mbps and 2 Mbps.
Use standard Cisco Smart Serial cables with the correct DCE/DTE gender. For synchronous links, your carrier-provided cable must match the port’s clocking role.
Power off the router, insert the WIC-2A/S into an available WIC slot until it clicks, secure the bracket screw, then power on and verify with the show controllers command.
Yes, the card supports DCE and DTE modes on synchronous ports. You can configure clock source using the clock rate command in global configuration mode.
The WIC-2A/S supports Cisco IOS channel service data unit (CSU), time-division multiplexing (TDM) and HDLC/PPP encapsulation features.
No. Always power down the router before adding or removing the WIC-2A/S to prevent hardware damage.
Typical power consumption is 2.0 W at 5 V DC. Verify total router power budget before installation.
It’s ideal for connecting routers to legacy PBX systems, leased lines, frame relay networks and backup serial links in enterprise and branch offices.
No special IOS image is required beyond standard multiclass feature sets that include serial WAN and async serial support.
Enter interface serial 0/0/0, set encapsulation (ppp or hdlc), configure speed with clock rate or line speed commands, then no shutdown.
The card is UL and CE certified and complies with FCC Part 15 Class A electromagnetic interference standards.
Use show diag to confirm hardware recognition and show controllers serial to check line protocol and physical status.
Unlike single-port or purely async WICs, the WIC-2A/S offers two ports with versatile sync/async support and up to 2 Mbps throughput per port.