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The VWIC2-2MFT-T1/E1 is a Cisco 2-port T1/E1 Multiflex Trunk Voice/WAN Interface Card. It is a daughter card that connects a router to a PBX, the PSTN or a WAN over a T1/E1 interface and provides channel drop-and-insert.
Within the Cisco NM-HD voice network modules, T1/E1 voice and serial data WAN access over T1/E1 or fractional T1/E1 are supported only on the NM-HD-2VE. The NM-HD-2VE needs at least one VIC and takes a maximum of two. Channel group speeds are N x 64 or N x 56 kbps (T1: N = 1 to 24; E1: N = 1 to 31), with up to 32 data channel groups and up to 2 Mbps total bandwidth. Data WAN access and DS-0 voice channels can share one T1/E1.
T1 ports run at 1.544 Mbps with AMI or B8ZS line code and D4 (SF) or ESF framing. E1 ports run at 2.048 Mbps with HDB3 encoding and 1.984 Mbps in framed mode. E1 cables are CAB-E1-RJ45BNC (RJ-45 to dual BNC, unbalanced) and CAB-E1-RJ45TWIN (RJ-45 to Twinax, balanced).
The card is supported in Cisco 2800, 2900, 3800 and 3900 Series routers, with Cisco IOS 12.3(14)T IP Voice images on the 2800 and 3800 and 15.0(1)M UC Technology images on the 2900 and 3900. The 2900 and 3900 use network modules through the SM-NM-ADPTR adapter. Compatible routers are in Cisco routers and more cards are in Cisco interface cards.
Related: Cisco 2811 parts
Related part: VWIC2-2MFT-G703 Cisco 2-Port G.703 Multiflex Trunk Voice/WAN Interface Card
Related part: VWIC2-1MFT-T1/E1 Cisco 1-Port T1/E1 Multiflex Trunk Voice/WAN Interface Card
| Part number | VWIC2-2MFT-T1/E1 |
| Type | 2-port T1/E1 multiflex trunk voice/WAN interface card |
| Ports | 2 x T1/E1 |
| T1 bit rate and line code | 1.544 Mbps; AMI or B8ZS |
| T1 framing | D4 (SF) and ESF |
| E1 bit rate and encoding | 2.048 Mbps; HDB3 |
| Channel groups | N x 64 or N x 56 kbps; up to 32 groups, up to 2 Mbps |
| Function | channel drop-and-insert |
| E1 cables | CAB-E1-RJ45BNC; CAB-E1-RJ45TWIN |
| Software | Cisco IOS 12.3(14)T (2800, 3800); 15.0(1)M (2900, 3900) |
| Compatible with | NM-HD-2VE network module; Cisco 2800, 2900, 3800 and 3900 Series routers |