Cisco WIC-1DSU-T1 — Integrated T1 DSU/CSU WAN Interface Card

Save on enterprise-grade WAN connectivity with the Cisco WIC-1DSU-T1, a fully integrated 1-port T1/fractional T1 DSU/CSU WAN interface card. Professionally refurbished and rigorously tested by Reef Telecom, this module eliminates the need for an external DSU/CSU — reducing deployment complexity, cable clutter, and management overhead.

Key Specifications

• Part Number: WIC-1DSU-T1
• Interface: 1 x RJ-45 T1/Fractional T1 port
• Data Rates: N x 64 Kbps or N x 56 Kbps (N = 1 to 24), up to 1.544 Mbps
• Standards: ANSI T1.403, AT&T Publication 62411
• Management: Cisco IOS CLI and SNMP (MIB II, T1 MIB RFC 1406)
• Diagnostics: BERT test patterns, loopback modes, alarm counters, performance reports
• LEDs: Carrier Detect, Loopback, Alarm
• Dimensions: 79 x 122 x 21 mm | Weight: 81g
• Operating Temp: 0°C to 40°C

Router Compatibility

• Cisco 1600 / 1600R Series
• Cisco 1700 Series (1720, 1721, 1751, 1760)
• Cisco 2600 / 2600XM Series
• Cisco 3600 / 3700 Series
• Cisco 3631

Why Buy from Reef Telecom?

• Industry-Leading 10-Year Warranty — the longest in the refurbished telecom market
• Free Shipping on orders over $300
• Fully tested, cleaned, and certified before shipping
• Genuine Cisco hardware with same-day shipping available

The Cisco WIC-1DSU-T1 is ideal for network engineers and IT teams maintaining legacy branch-office routers, CCNA/CCNP lab environments, or cost-effective T1 WAN deployments. Replace a failing card or expand your router's WAN capabilities without breaking the budget.

Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.

All products include our industry-leading 10 Year Warranty backed by Reef Telecom.