HWIC-4T Four-Port Serial WAN Interface Card for Cisco ISR

The Cisco HWIC-4T is a four-port serial WAN interface card designed for Cisco Integrated Services Routers. It provides flexible synchronous/asynchronous connectivity for legacy WAN circuits, industrial links, and specialised serial applications. This module helps organisations maintain dependable wide-area communication while supporting refurbished networking equipment strategies for extended infrastructure life.

Key Features & Benefits

• Four serial ports – Expands WAN connectivity options on Cisco ISR platforms
• Sync/async support – Accommodates diverse legacy and industrial protocols
• Reliable link performance – Designed for stable serial WAN operation
• Platform flexibility – Supported on multiple ISR families for scalable deployment
• Cost-efficient upgrade – Extends router capability without full hardware replacement
• Simple installation – Reduces field engineering time
• Predictable operations – Maintains compatibility with established IOS feature sets

Ideal For

• Industrial and utility networks
• Legacy serial WAN migrations
• Secure government or defence environments
• Transportation and SCADA deployments
• Branch ISR router expansions

Specifications at a Glance

Form factor: High-Speed WAN Interface Card (HWIC)
Interfaces/ports: 4 × serial ports
Bands/standards: Spec not provided.
Throughput: Spec not provided.
Power: Spec not provided.
Dimensions/weight: Spec not provided.
Operating temp: Spec not provided.
Certificates (RoHS/CE): Spec not provided.
Known limitations: Compatibility limited to Cisco ISR platforms that support HWIC modules.
Common aliases / cross-refs: HWIC4T; Cisco 4-Port Serial HWIC.

Trust, Testing & Service

All refurbished Cisco modules supplied by PICS Telecom undergo full functional testing, interface validation, and physical inspection. Hardware is covered by our warranty and dispatched quickly from global logistics centres. PICS operates under circular-economy principles with a zero-to-landfill policy.

Conclusion

The HWIC-4T offers dependable multi-port serial connectivity for Cisco ISR routers, supporting legacy and industrial WAN requirements. For pricing or availability, contact PICS Telecom at https://www.picstelecom.com or browse stock on https://marketplace.picstelecom.com