The Cisco MFT VWIC3 cards can be inserted into the EHWIC slot on the supported Cisco 1921, 1941, 1941W, 2901, 2911, 2921, 2951, 3925, 3945, 3925E and 3945E integrated services routers. The T1/E1 MFT VWIC3 cards support both T1 and E1, providing additional flexibility in configuring the Cisco MFT VWIC3s for supporting T1, fractional T1, E1, and fractional E1 for both voice and WAN applications. All MFT VWIC3 modules include the drop-and-insert multiplexing capability, which eliminates costly external third-party channel service units/data service units (CSUs/DSUs) and drop-and-insert multiplexers.

• VWIC3-1MFT-T1/E1 Specification

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• VWIC3-1MFT-T1/E1
  Manufacturer	Cisco
  Part Number	VWIC3-1MFT-T1/E1
  Device Type	Interface module
  Form factor	1-Port T1/E1 Multiflex Trunk Voice/WAN Interface Card
  Specifications
  Number of Ports	1
  T1 Support	Yes
  E1 Support	Yes
  Unstructured E1 (G.703) Support	No
  Data Support WIC Mode	Yes
  Voice Support VIC*	Yes
  Drop-and-Insert Multiplexing	Yes
  Configuration Comparison
  Serial Data (channel-group*)	2 total 2 per port
  Voice CAS (ds0-group**)	24 total (T1) 31 total (E1) 1 per timeslot
  PRI (pri-group***)	1 total 1 per port
  Drop & Insert (tdm-group****)	24 total (T1) 31 total (E1) 1 per timeslot
  Network Management Features
  Telnet or Console	Remote and local configuration, monitoring, and troubleshooting from Cisco IOS Software CLI
  Simple Network Management Protocol (SNMP)	• Router and DSU/CSU managed by single SNMP agent; router, DSU, and CSU appear as a single network entity to user • Standard MIB (MIB II) • Cisco Integrated DSU/CSU MIB • RFC 1406 T1 MIB, Including Alarm Detection and Reporting
  SNMP Traps	Generated in response to alarms