Cisco 4 Port Clear Channel T1/E1 High Speed WAN Interface Card - 4 x T1/E1 WAN
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General Information

Reduced Footprint

If you are using multiple 1- or 2-port T1/E1 modules for n x T1/E1 connectivity, you can now replace the modules with a single Cisco 4-Port Clear Channel T1/E1 HWIC, and you can make the HWIC slots available for other interfaces and services. If you use a single T1/E1 today and plan to scale up to 4 T1/E1 modules in the future, you can install the 4-port HWIC today and turn on the additional T1/E1 ports as you need them.

Deployment Flexibility

The Cisco 4-Port Clear Channel T1/E1 HWIC is software-configurable between E1 or T1 operation, balanced or unbalanced E1 termination, and CSU/DSU. You no longer need to buy a specific module for T1 support and then another card for E1 connectivity. If you have branch offices across the world, ordering, inventory and management are much simplified.

Technical Information
Application/Usage:Wide Area Network

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

Media & Performance
Connectivity Media:Copper T1/E1
Data Transfer Rate:1.54 Mbps T1
Data Transfer Rate:2.05 Mbps E1

Physical Characteristics
Dimensions:0.8" Height x 3.1" Width x 4.7" Depth
Weight (Approximate):3.20 oz


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  • 3945E

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Shipping Restrictions
  • This item cannot be shipped to PO Boxes.
  • This item can be shipped only within the U.S.

  • UPC: 882658110689 
  • Mfr's Part #: HWIC-4T1/E1=