Cisco HWIC-4A/S – 4-Port Asynchronous/Synchronous Serial WAN Card for ISR Routers
Model Name : HWIC-4A/S
Brand : Cisco
Key Features:
- 4 Smart Serial Ports – Configurable independently for synchronous or asynchronous operation.
- Legacy WAN Protocols – Supports HDLC, PPP, Frame Relay, and X.25.
- Modem, Console, or WAN Support – Ideal for SCADA, retail POS, and branch data access.
- Low-Speed Leased Line Support – Up to 128 Kbps sync, 115.2 Kbps async.
- Multiple Cable Options – Compatible with Cisco Smart Serial cable types.
Compact ISR Integration – Expands legacy WAN in a single HWIC slot. - Designed For – Government, banking, industrial control, and branch WAN solutions.
30 days Warranty
Condition : Refurbished
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- Description
- Specification
- Reviews
Cisco HWIC-4A/S is a 4-port asynchronous/synchronous serial High-Speed WAN Interface Card designed for Cisco Integrated Services Routers (ISR), including the 1800, 1900, 2800, 2900, 3800, and 3900 Series.
Each port features a Smart Serial interface and can be individually configured for asynchronous (e.g., modem, terminal) or synchronous (e.g., leased line) operation.
The HWIC-4A/S supports a wide range of legacy WAN protocols, including PPP, HDLC, Frame Relay, and X.25, making it a flexible solution for industrial control systems, financial institutions, government branches, and more.
Frequently Asked Questions
Q1: Which routers are compatible with the HWIC-4A/S?
A: Cisco ISR 1800, 1900, 2800, 2900, 3800, and 3900 series routers.
Q2: What cable types are used?
A: It uses Cisco Smart Serial cables, such as: CAB-SS-V35MT CAB-SS-232MT CAB-SS-X21MT CAB-SS-530MT
Q3: What is the speed per port?
A: Each port supports: Up to 128 Kbps synchronous Up to 115.2 Kbps asynchronous
Q4: Can I use it for both sync and async at the same time?
A: Yes, each port is independently configurable for either mode.
Q5: Is the module hot-swappable?
A: No, the router must be powered off before installing or removing this card.
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