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HWIC-1B-U
1-Port ISDN BRI U High-Speed WAN Interface Card Cisco Router...
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Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
HWIC-1B-U is a high-performance WAN module designed to deliver reliable 1Gbps data rates through an RJ-45 connector. This module is engineered for seamless integration with Cisco routers and is optimized to support TCP/IP protocols, making it an ideal solution for expanding WAN connectivity in enterprise networks.
HWIC-1B-U features a modular form factor that is easy to install, and its robust design enables it to support essential network features such as auto-negotiation, jumbo frames, and QoS. It is perfectly suited for applications requiring high-speed network upgrades and data center expansions, ensuring compatibility with industry-standard networking environments.
HWIC-1B-U price is $337.00, a 62.6% saving from the Cisco list price of $900.00. HWIC-1B-U is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for HWIC-1B-U for additional pricing. Browse the full Router Ehwic Wan Cards series or explore all Cisco products.
A mid-market retailer deploys the HWIC-1B-U-1-Port ISDN BRI U High-Speed WAN Interface Card in Cisco 2900 Series routers at 50 remote outlets. Primary IP VPN over DSL delivers daily transaction data; the ISDN BRI interface provides automatic dial-up failover on link loss. Outcome: 99.9% uptime SLA, seamless order processing, and centralized network management without additional hardware.
An insurance firm integrates its ISDN PBX system with a unified Cisco router using the HWIC-1B-U-1-Port ISDN BRI U High-Speed WAN Interface Card. The card bridges legacy voice channels to VoIP trunks, enabling centralized SIP routing and QoS enforcement across MPLS links. Benefit: reduced capital expenditure, streamlined voice provisioning, and consistent call quality under a single network infrastructure.
A government utility operator configures the HWIC-1B-U-1-Port ISDN BRI U High-Speed WAN Interface Card on Cisco ISR routers at SCADA sites. In the event of primary fiber or microwave failure, the card establishes an encrypted ISDN BRI tunnel to the control center. Result: guaranteed emergency connectivity, rapid failover in under 30 seconds, and compliance with regulatory uptime mandates.
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| HWIC-1B-U |  HWIC-CABLE-D-2 |  EHWIC-D-8ESG-P |  EHWIC-3G-EVDO-S |  EHWIC-4ESG-P | |
|---|---|---|---|---|---|
| Product Type | Network Module | Network Module | Network Module / Network Card | WAN Module | Network Module / Network Card |
| Module Type | WAN Module | WAN | Ethernet | 3G EVDO Wireless WAN Module | Ethernet |
| Supported Protocols | TCP/IP | TCP/IP | TCP/IP | TCP/IP | TCP/IP |
| Form Factor | Modular | Modular | Modular | Modular | Modular |
| Compatibility | Cisco | Cisco | Cisco | Cisco ISR Routers | Cisco |
| Supported Features | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | EVDO Mobile Broadband | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS |
| Expansion Slots | EHWIC | EHWIC | EHWIC | EHWIC | EHWIC |
| Product Name | HWIC-1B-U | HWIC-CABLE-D-2 | EHWIC-D-8ESG-P | EHWIC-3G-EVDO-S | EHWIC-4ESG-P |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
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The HWIC-1B-U is an excellent card for ISDN BRI U connectivity. It offers stable performance and integrates seamlessly with our router.
We use the HWIC-1B-U for ISDN connectivity. It's reliable and provides excellent performance for our voice and data needs.
The HWIC-1B-U is perfect for our ISDN connection. It was easy to install and delivers solid, reliable service.
This card provides excellent ISDN connectivity. The HWIC-1B-U offers stable, high-quality performance for our communication needs.
The HWIC-1B-U delivers fast, reliable ISDN connectivity. It's been easy to integrate into our existing infrastructure with minimal setup.
The Cisco HWIC-1B-U is a 1-port ISDN BRI U high-speed WAN interface card designed to provide up to 128 Kbps connectivity for Cisco ISR routers.
The HWIC-1B-U is compatible with Cisco ISR G2 series routers, including the 1841, 2801–2811, 3825–3845, and 2921–2951 platforms.
This interface card supports two 64 Kbps B-channels aggregated to deliver a total of 128 Kbps synchronous data throughput.
The HWIC-1B-U provides a single RJ-45 U-reference ISDN BRI port and requires one HWIC slot in supported Cisco routers.
Power down your ISR router, insert the HWIC-1B-U into an available HWIC slot, secure with captive screws, then power up and verify with the show hw module command.
Use global configuration mode: interface bri0/0; encapsulation ppp; isdn switch-type national; dialer pool-member 1; and dialer-group <X> to enable BRI U.
The module supports both PPP (PPP Multilink) and HDLC encapsulation, as well as dial-on-demand routing and dialer profiles.
Yes. Its fast ISDN call setup makes it ideal for primary low-bandwidth links and automatic dial-backup for higher-speed circuits.
No separate license is required. Once installed in a compatible ISR router, the card is enabled by default in Cisco IOS images.
The card operates between 0°C and 40°C, with a relative humidity of 10–90% non-condensing, meeting Cisco’s standard HWIC environmental ratings.
Run show controllers bri 0/0 to confirm line status and show isdn status for active B-channel and D-channel info.
Check physical cabling, verify switch-type and point-to-point settings, review show dialer interface bri0/0 output, and inspect debug isdn q921/q930 logs.
The HWIC-1B-U draws approximately 2.5 W from the router’s HWIC slot, conforming to Cisco’s low-power design for branch deployments.
The Cisco ordering part number for the 1-Port ISDN BRI U HWIC is HWIC-1B-U, as listed in Cisco’s hardware catalog.
Cisco publishes the HWIC-1B-U datasheet on Cisco.com under the ISR G2 module documentation, detailing specs, ordering, and configuration examples.
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