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HWIC-4T1/E1
4 port clear channel T1/E1 HWIC Cisco Router High-Speed WAN...
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HWIC-4T1/E1 is a modular High-Speed WAN Interface Card that delivers four dedicated T1/E1 ports, offering reliable connectivity for both voice and data applications. Designed specifically for integration into Cisco routers, this module supports standard T1 (1.544 Mbps) and E1 (2.048 Mbps) line interfaces through RJ-48 connectors, ensuring that legacy telecom circuits can be efficiently adapted into modern network infrastructures.
Engineered for straightforward installation in Cisco HWIC slots, the HWIC-4T1/E1 is ideal for customers looking to expand their network capabilities and maintain robust WAN connectivity across distributed environments. Its compact, modular form factor and support for essential WAN protocols such as PPP and HDLC make it a critical solution for organizations upgrading legacy systems while ensuring dependable performance and seamless routing integration.
HWIC-4T1/E1 price is $169.96, a 96% saving from the Cisco list price of $4,248.92. HWIC-4T1/E1 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for HWIC-4T1/E1 for additional pricing. Browse the full Router Ehwic Wan Cards series or explore all Cisco products.
In a global enterprise with 50 branch offices, network architects install the Cisco HWIC-4T1/E1 4-port clear-channel T1/E1 High-Speed WAN Interface Card in ISR routers to terminate and bond four T1/E1 circuits per site. Paired with OSPF/MPLS, this solution delivers up to 25 Mbps of dedicated bandwidth, per-VC QoS and DMVPN failover. The outcome: predictable, low-latency connectivity that meets 99.99% uptime SLAs, simplifies provisioning and reduces overall WAN costs by 20%.
A service provider implements the Cisco HWIC-4T1/E1 card in Cisco ISR platforms to terminate four PRI/E1 lines for Cisco Unified Communications Manager. The clear-channel T1/E1 links support up to 120 simultaneous VoIP sessions, ESS redundancy and granular dial-peer configuration. Built-in echo cancellation, precise channel allocation and per-port QoS ensure 99.9% voice clarity and seamless PSTN integration, cutting voice gateway CAPEX by 35%.
Telecom operators deploy the Cisco HWIC-4T1/E1 in regional Points-of-Presence to provide managed point-to-point and point-to-multipoint T1/E1 services. Integrated with Cisco IOS Carrier Support, it offers CFM OAM, per-port SLA monitoring and dynamic bandwidth provisioning. This enables sub-2-second fault isolation, configurable CIR and hierarchical QoS for enterprise customers, accelerating time-to-market, strengthening SLAs and boosting recurring revenue by 15%.
To get the detailed certification, please go to the Compliance Center.
 HWIC-4T1/E1 |  HWIC-4ESW |  HWIC-2FE |  HWIC-4SHDSL |  HWIC-4T | |
|---|---|---|---|---|---|
| Product Type | WAN Module | Network Module | Network Module / Network Card | WAN Module | Network Module |
| Module Type | T1/E1 | Ethernet Switch Module | Ethernet | DSL | High-Speed WAN Interface Card |
| Data Rate | 1.544Mbps / 2.048Mbps | 10/100 Mbps | 100Mbps | 2.3Mbps (symmetrical) | T1/E1 (1.544 Mbps / 2.048 Mbps) |
| Connector Type | RJ-48 | RJ-45 | RJ-45 | RJ-11 | RJ-48 |
| Supported Protocols | PPP/HDLC | TCP/IP | TCP/IP | TCP/IP | TDM |
| Form Factor | Modular (HWIC) | Modular | HWIC | HWIC | HWIC/EHWIC |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | N/A | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | N/A | N/A | 3.3V | 5V |
| Compatibility | Cisco | Cisco Routers | Cisco Routers | Cisco | Cisco Routers |
| Max Speed | 1.544Mbps / 2.048Mbps | 100Mbps | 100Mbps | 2.3Mbps | 2.048 Mbps per port |
| Supported Features | N/A | Auto-negotiation, QoS | Auto-negotiation, Full-duplex | Auto-negotiation | Auto-sensing, Loopback, Diagnostics |
| Power Consumption | N/A | N/A | N/A | N/A | 10W |
| Interface Ports | T1/E1 | Ethernet | Ethernet | N/A | 4 x T1/E1 |
| Expansion Slots | EHWIC | EHWIC | HWIC | HWIC | HWIC |
| Product Name | HWIC-4T1/E1 | HWIC-4ESW | HWIC-2FE | HWIC-4SHDSL | HWIC-4T |
| Height | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | N/A | N/A | N/A |
| Depth | N/A | N/A | N/A | N/A | N/A |
| Weight | N/A | N/A | N/A | N/A | N/A |
The HWIC-4T1/E1 card is perfect for expanding our T1/E1 network. It offers reliable connectivity and was easy to integrate into our setup.
We rely on the HWIC-4T1/E1 for our T1/E1 connections. It's been a reliable and cost-effective addition to our Cisco router setup.
The HWIC-4T1/E1 has been great for scaling our T1/E1 network. It provides stable performance and is easy to configure.
This card provides excellent connectivity for T1/E1 services. The HWIC-4T1/E1 has been a reliable solution for our growing business.
The HWIC-4T1/E1 card is a solid choice for T1/E1 connections. It's easy to set up, and we've had no issues with its performance.
The Cisco HWIC-4T1/E1 is a four-port clear channel T1/E1 high-speed WAN interface card designed to extend Cisco routers with reliable, full-bandwidth digital trunk connectivity.
The HWIC-4T1/E1 provides four independent clear channel ports, each delivering full-bandwidth T1 (1.544 Mbps) or E1 (2.048 Mbps) connectivity.
The HWIC-4T1/E1 is compatible with Cisco ISR Generation 1 and 2 routers equipped with HWIC slots, including the 1800, 2800, 2900 and 3800 series.
Each port supports standard T1 rates up to 1.544 Mbps or E1 rates up to 2.048 Mbps in clear channel mode.