Cisco HWIC-4T1E1 4 Port Networking Expansion Module
If you need a large quantity of HWIC-4T1/E1 product - call us at +1 (347) 470 6982 or request a quote at live chat and our sales manager will contact you shortly.
Looking for assistance? Connect with one of our experts
FREE Shipping. We are accepting NET 30 Days Purchase Orders. Get a decision in seconds, without affecting your credit.

HWIC-4T1/E1 Cisco 4 Ports Clear Channel HWIC Refurbished

Availability: In Stock
Part Number#: HWIC-4T1/E1
List Price was: $1150.00
Your Price:
You Save: $851.00 (74% off)

5% Discount on Checkout

Short Description:
HWIC-4T1/E1 4 Ports Clear Channel T1/E1 High Speed Wide Area Network Interface Card Expansion Module | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Traffic Analysis and Performance Metrics

The HWIC-4T1/E1 is a Cisco network interface card that provides four T1 or E1 ports for connecting to WAN networks. It is designed to be used with Cisco routers and offers a range of features and performance metrics that can be used to monitor and analyze network traffic.

Traffic Analysis:

The HWIC-4T1/E1 supports a range of traffic analysis tools that can be used to monitor network traffic, including:

  • NetFlow: This feature allows you to monitor network traffic flows in real-time, providing insights into bandwidth usage, traffic sources, and network congestion.
  • SNMP: The Simple Network Management Protocol (SNMP) allows you to monitor network performance and traffic statistics, including interface utilization, packet loss, and errors.
  • Syslog: This feature allows you to collect system logs and event messages, which can be used to troubleshoot network issues and monitor system performance.

Performance Metrics:

The HWIC-4T1/E1 provides a range of performance metrics that can be used to monitor and optimize network performance, including:

  • Throughput: The HWIC-4T1/E1 supports up to 4 Mbps of bandwidth per port, with a maximum aggregate throughput of 16 Mbps.
  • Latency: The HWIC-4T1/E1 offers low latency performance, making it ideal for applications that require real-time data transmission.
  • Jitter: The HWIC-4T1/E1 offers low jitter performance, ensuring that data is delivered reliably and consistently.
  • Error rates: The HWIC-4T1/E1 offers low error rates, with a bit error rate (BER) of less than 1 in 10^10.
  • Quality of Service (QoS): The HWIC-4T1/E1 supports QoS features that allow you to prioritize network traffic, ensuring that critical applications receive the bandwidth they require.

Network Topology and Architecture

The HWIC-4T1/E1 is a hardware interface card manufactured by Cisco Systems. It is designed to provide four independent T1 or E1 interfaces for routers and switches. The HWIC-4T1/E1 is an expansion card that can be inserted into the High-Speed WAN Interface Card (HWIC) slot of a compatible Cisco device.

The HWIC-4T1/E1 has a clear channel design, which means that it can carry any type of data, including voice, video, and data traffic. It supports full-duplex communication, which enables data to be transmitted and received simultaneously.

The HWIC-4T1/E1 has a modular design that allows for easy installation and removal. It has four RJ-45 connectors, each of which can support either a T1 or an E1 interface. The card is compatible with both balanced and unbalanced T1 and E1 interfaces.

In terms of network topology and architecture, the HWIC-4T1/E1 card follows a point-to-point topology. It connects two endpoints directly, without any intermediate nodes or devices. The card can be used to connect a router or switch to a T1 or E1 circuit provided by a service provider.

The HWIC-4T1/E1 card supports a variety of network protocols, including PPP, HDLC, and Frame Relay. It also supports T1 and E1 line coding schemes, such as AMI, B8ZS, and HDB3.

Power Requirements and Usage

The HWIC-4T1/E1 is a Cisco network interface card that provides four T1 or E1 ports for connecting to WAN networks. In terms of power requirements and usage, the HWIC-4T1/E1 has the following specifications:

Power Requirements:

  • Maximum power consumption: 6W
  • Powered by router or switch through the HWIC slot
  • No external power source required


  • The HWIC-4T1/E1 is installed in a router or switch HWIC slot and is powered by the device.
  • It provides four T1 or E1 ports that can be used to connect to WAN networks.
  • Each port can support up to 2 Mbps of bandwidth and can be configured independently for T1 or E1 signaling.
  • The HWIC-4T1/E1 supports both clear channel and channelized modes, allowing it to be used for a wide range of applications, including voice, video, and data transmission.
  • The card supports a range of traffic analysis and performance monitoring tools, including NetFlow, SNMP, and Syslog.
  • The HWIC-4T1/E1 can be configured using Cisco IOS software, allowing for flexible and customizable network configurations.

General Information

  • Manufacturer: Cisco
  • MPN: HWIC-4T1/E1
  • Product Name: 4-Port Clear Channel T1/E1 HWIC
  • Product Type: HWIC

Technical Information

  • Application/Usage Wide Area Network

Interfaces / Ports

  • Interfaces/Ports 4 x T1/E1 WAN
  • Interfaces/Ports Details 4 x RJ-48C T1/E1 WAN

Media & Performance

  • Data Transfer Rate 1.54 Mbps T1
  • Data Transfer Rate 2.05 Mbps E1

Management & Protocols

  • Management
  • Supported by Cisco WAN Access Performance Management System (WAPMS)
  • Cisco CNS 2100 Series Intelligence Engine (IE2100)
  • CiscoWorks

Dimensions & Weight

  • Height: 0.8 Inch
  • Width: 3.1 Inch
  • Depth: 4.7 Inch
  • Weight: 0.20 Lbs


  • Additional Information
  • Integrated CSU/DSU per port
  • Balanced or unbalanced E1 termination in the same module
  • Independent clocking for each port
  • Reduced Footprint
  • Deployment Flexibility


  • Cisco 2811 Integrated Services Routers
  • Cisco 2821 Integrated Services Routers
  • Cisco 2851 Integrated Services Routers
  • Cisco 3825 Integrated Services Routers
  • Cisco 3845 Integrated Services Routers
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Here, you can check more available conditions of your desired product HWIC-4T1/E1 at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


Please choose your location for calculate shipping cost.


ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.


Shipping Options and Estimated Delivery Time

UPS Shipping Options:

FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days

UPS 3 Day Select®
Estimated delivery time: 3 business days

UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM

UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.

UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM

UPS Next Day Air® First Overnight - Early A.M
Estimated delivery time: Overnight 8:00 AM, Early morning, overnight delivery for your time-critical shipments.

UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday

FedEx Shipping Options:

FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.

FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)

FedEx 2Day®
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states

FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states

FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states

Worldwide Shipping Options:

UPS®/FedEx® International Economy

Estimated delivery time: 4-7 business days

UPS®/FedEx® International Priority

Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
  • We are not responsible for weather problems that may affect the delivery of goods by carriers. We cannot guarantee the exact delivery time, regardless of the carriers' claims.
  • If you have any specific delivery time requirements, please contact our customer support and someone from our customer service team will be able to help you.
  • You can estimate the shipping cost from the products detail page, also available on the checkout page
  • The shipping cost depends on box dimensions, weight, and zip/postal code
  • To get a FedEx® delivery service you need to mention it on the checkout page notebox.
  • For urgent shipments, please contact our customer service.
  • Shipping cut off 4:00 PM (Monday-Friday) and available blind drop shipment.