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WIC-1ADSL-T1
WIC-1ADSL-T1 Router WAN Interface Card
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WIC-1ADSL-T1 is a WAN module designed to deliver dual-mode connectivity by combining both T1 and ADSL interfaces in one compact, plug-in card. Engineered for use with integrated services routers, this module features a dedicated T1 interface with an RJ-48 connector and an ADSL port, enabling reliable data and voice transmission over legacy and broadband services. With support for industry-standard protocols such as TCP/IP, PPP, and HDLC, the card ensures seamless integration into diverse network environments.
WIC-1ADSL-T1 offers data rates of 1.544Mbps on the T1 interface and up to 8Mbps on its ADSL channel, making it an effective solution for small branch offices and remote locations seeking dependable WAN connectivity. Its modular form factor allows for simple installation into router WIC slots, while its compatibility with Cisco Integrated Services Routers and built-in features like auto-negotiation and QoS optimize performance for various voice and data applications.
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A global retail chain deploys the WIC-1ADSL-T1-WIC-1ADSL-T1 to combine a primary T1 link for high-volume POS transactions with an ADSL backup. Automatic failover delivers 99.99% uptime, reduces telecom costs by 25%, and ensures seamless sales continuity across 200+ stores.
A regional credit union implements the WIC-1ADSL-T1-WIC-1ADSL-T1 to run secured T1 circuits for transactional data and ADSL as a secondary path over an encrypted VPN. This dual-link setup guarantees 24x7 secure access to core banking systems, maintains audit-grade logs, and minimizes regulatory risk.
A manufacturing plant uses the WIC-1ADSL-T1-WIC-1ADSL-T1 to route SCADA control traffic over a prioritized T1 link while offloading administrative and guest traffic to ADSL. The architecture isolates mission-critical data, reduces network latency to under 20 ms, and boosts production-line availability by 30%.
To get the detailed certification, please go to the Compliance Center.
 WIC-1ADSL-T1 |  WIC-1DSU-56K4 |  WIC-1AM-V2 |  WIC-2A/S |  WIC-1SHDSL-V3 | |
|---|---|---|---|---|---|
| Product Type | WAN Module | WAN Interface Card | WAN Module | Network Module / Network Card | WAN Module |
| Module Type | WAN | DSU/CSU Module | WAN | WAN Module | WAN |
| Data Rate | 1.544Mbps (T1) / Up to 8Mbps (ADSL) | 56Kbps | 1Gbps | 1Gbps | 2Mbps |
| Connector Type | RJ-48 / ADSL Port | RJ-11 | RJ-45 | RJ-45 | RJ-45 |
| Supported Protocols | TCP/IP, PPP, HDLC | PPP / HDLC | TCP/IP, iSCSI | TCP/IP | PPP, HDLC |
| Form Factor | Modular (WIC slot) | WIC | PCIe | 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 | 5V DC | 5V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco Integrated Services Routers | Cisco | Cisco, Juniper, Arista, Dell, HP | Cisco | Cisco |
| Max Speed | 1.544Mbps (T1) / Up to 8Mbps (ADSL) | 56Kbps | 1Gbps | 1Gbps | 2Mbps |
| Supported Features | Auto-negotiation, QoS | DSU/CSU functionality | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation |
| Power Consumption | 4W | N/A | 5W | 7W | N/A |
| Interface Ports | T1 and ADSL | Analog RJ-11 | Ethernet | Ethernet | RJ-45 |
| Expansion Slots | WIC Slot | WIC Slot | N/A | WIC | N/A |
| Product Name | WIC-1ADSL-T1 | Cisco WIC-1DSU-56K4 | WIC-1AM-V2 | WIC-2A/S Dual WAN Interface Card | Cisco WIC-1SHDSL-V3 |
| Height | N/A | N/A | 1.0 inches | 1.0 inches | N/A |
| Width | N/A | N/A | 3.5 inches | 4.0 inches | N/A |
| Depth | N/A | N/A | 0.5 inches | 0.5 inches | N/A |
| Weight | N/A | N/A | 0.5 lbs | 0.5 lbs | N/A |
The WIC-1ADSL-T1 provides excellent ADSL connectivity. It offers fast and reliable internet access, significantly improving the overall performance of our network.
This card works perfectly for our setup. The WIC-1ADSL-T1 module ensures stable and high-speed ADSL connections for our router, improving network efficiency.
We rely on the WIC-1ADSL-T1 for its stable performance. It supports ADSL T1 connections, providing reliable and high-speed data transfer across our network.
The WIC-1ADSL-T1 is a reliable solution. It offers consistent and fast ADSL connectivity, ensuring smooth and uninterrupted internet access for our business.
The WIC-1ADSL-T1 provides excellent value. It delivers stable ADSL connections with fast data transfer speeds, improving our network performance.
The Cisco WIC-1ADSL-T1 is a dual-purpose WAN interface card providing both ADSL and T1 connectivity for supported Cisco modular routers.
The WIC-1ADSL-T1 is compatible with Cisco 1800, 2800 and 3800 series routers featuring a WIC slot and Cisco IOS 12.4 or later.
Power off the router, insert the WIC-1ADSL-T1 into an empty WIC slot, secure the captive screws, then power on and verify slot recognition in IOS.
Enter global configuration mode, define the dialer interface, configure ADSL encapsulation (e.g. PPPoA), and bind the dialer to the physical interface.