Cisco

Cisco HWIC-4AS | 4x async/sync serial | Smart Serial | PPP/FR/HDLC

SKU:HWIC-4AS

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Description

4-port asynchronous/synchronous serial HWIC for ISR routers, providing flexible WAN/serial connectivity using Cisco Smart Serial cables for multiple interface types. Suited to legacy WAN, SCADA, and serial backhaul use cases.

Features

- Combines async and sync serial on one module
- Flexible cabling to multiple serial standards via Smart Serial
- Supports common WAN encapsulations
- Ideal for industrial/utility and legacy WAN environments
- Space‑saving HWIC integration

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Are Smart Serial cables included?
A: No. Order the appropriate Cisco Smart Serial cables (e.g., to V.35, X.21, or EIA‑232) for your circuit type.

Q: What data rates are supported?
A: Supported speeds depend on interface type, cabling, and IOS features. Refer to platform and cable specifications for exact limits.

Q: Which routers are compatible?
A: Supported on many Cisco ISR 1800/2800/3800 and ISR G2 1900/2900/3900 models with HWIC slots; check your chassis documentation.

Technical Specifications

- Interfaces: 4x async/sync serial ports
- Connector type: Cisco Smart Serial (cables required)
- Supported interface types (via cable): EIA‑232, V.35, X.21 (and others as supported)
- Encapsulations: HDLC, PPP, Frame Relay (per IOS features)
- Use cases: Legacy WAN links, telemetry/SCADA, serial backhaul
- Form factor: HWIC for ISR routers

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