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Cisco Second-Generation 2-Port T1/E1 Multiflex Trunk Voice/WAN Interface Card

By: Cisco


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The Cisco 2-port T1/E1 multiflex interface cards provide voice and data access to the PSTN domain through TDM ports. They are dual-port trunk interfaces for voice, data, and integrated voice and/or data applications. These cards provide basic structured service for T1 or E1 networks and unstructured service for fractional E1 networks. The cards include an integrated DSU/CSU. Some cards also support the drop-and-insert process, which adds data to a T1 or E1 data stream, or which terminates data from a T1 or E1 data stream to other devices connected to the drop-and-insert equipment.

Manufacturer Cisco Systems, Inc
Manufacturer Part Number VWIC2-2MFT-T1/E1=
Manufacturer Website Address
Brand Name Cisco
Product Name Second-Generation 2-Port T1/E1 Multiflex Trunk Voice/WAN Interface Card
Product Type Voice/WAN Interface Card
Technical InformationApplication/UsageVoice
Interfaces/PortsInterfaces/Ports Details2 x RJ-48C T1/E1 WAN
Media & PerformanceMedia Type SupportedTwisted Pair
Twisted Pair Cable StandardCategory 5
Maximum Data Transfer Rate2.05 Mbit/s
MiscellaneousAdditional Information
  • The card include an integrated data service unit/channel service unit (DSU/CSU)
  • Shielded cables STP Cat 5 should be used on E1 ports
  • Full support for T1 Facility Data Link (FDL)
  • Controller local loopbacks
  • Controller remote loopbacks
  • Firmware to support T1 and E1 Layer 1 homologation
  • User-initiated VWIC reset and field-programmable gate array (FPGA) download
  • Voice support (includes DS0-group and PRI-group configuration)
  • Drop and insert capability
  • MFT VWIC2s have an onboard slot for a multiflex trunk dedicated echo cancellation module (EC-MFT-32 and EC-MFT-64), offering an enhanced echo cancellation capability for demanding network conditions.
  • Cisco 2600XM series, Cisco 2691, Cisco 2800 series, Cisco 3700 series, and Cisco 3800 series routers
  • Cisco 1700 Series Modular Access Routers

Supported Network Module:

  • NM-HDV
  • NM-HDV2
  • NM-HD-2VE
  • NM-2W
  • NM-1FE1R2W
  • NM-1FE2W-V2
  • NM-2FE2W-V2
WarrantyLimited Warranty90