Cisco Fourth-Generation NIM-1MFT-T1/E1 Multiflex Trunk Voice and WAN network interface module NIM-1MFT-T1/E1 Overview The Cisco Fourth-Generation T1/E1 Multiflex Trunk Voice and WAN Network Interface Modules (NIMs) support data and voice applications on the Cisco 4451-X integrated services routers. These cards combine WAN-interface-card (WIC), voice-interface-card (VIC), ISDN Primary Rate Interface (PRI), dial-access integration, and channelized-data (CE1T1) functions to provide unparalleled flexibility, versatility, and investment protection through their many uses. Customers who choose to integrate data and voice in multiple steps preserve their investment in a T1/E1 WAN interface. The T1/E1 modules contain an onboard Cisco Packet Voice Digital Signal Processor Module 4 (PVDM4) slot, which requires a fourth-generation PVDM4 module. A PVDM4 on the T1/E1 module is necessary for the voice features. The PVDM4 also provides for echo cancellation of up to 128-ms echo-tail length for demanding network conditions. NIM-1MFT-T1/E1 Specification NIM-1MFT-T1/E1 SpecificationCapacitySerial data (channel-group)2 per portE1 unframed G.703Not supportedVoice channel associated signaling (CAS) (ds0-group)24 per port (T1)31 per port (E1)1 per timeslotPRI (pri-group)1 per portDrop and insert24 per port (T1)(tdm-group)31 per port (E1) 1 per timeslotT1 Network InterfaceTransmit bit rate1.544 Mbps plusmn,50 bps/32 ppmReceive bit rate1.544 Mbps plusmn,50 bps/32 ppmLine codeAlternate mark inversion (AMI) and binary 8-zero substitution (B8ZS)AMI ones densityEnforced for n x 56-kbps channelsFraming formatD4 (Super Frame [SF]) and Extended Super Frame (ESF)Output level (line build-out [LBO])0, -7.5 or -15 dBInput level+1 dB0 down to -24 dB0Data-terminal-equipment (DTE) interface (WIC mode)Fractional serviceDTE interface (VIC mode)G.704 or structuredData-communications-equipment (DCE) interfaceG.704 or structuredE1 Network InterfaceTransmit bit rate2.048 Mbps plusmn,100 bps/50 ppmReceive bit rate2.048 Mbps plusmn,100 bps/50 ppmData rate1.984 Mbps (framed mode) per E1 portClockingInternal and loop (recovered from network)E1 national bitsFixed (nonconfigurable)EncodingHigh-density bipolar three (HDB3)DTE interface (WIC mode)Fractional serviceDTE interface (VIC mode)G.704 or structuredDCE interfaceG.704 or structuredModule SpecificationsDimensions (H x W x D)1.25 x 3.50 x 7.24 in. (3.18 x 8.89 x 18.39 cm)Environmentalв—Џ Operating temperature: 0 to 50C (32 to 122F)в—Џ Storage temperature: -20 to +65C (-4 to 148F)в—Џ Relative humidity: 10 to 85% noncondensing operating, 5 to 95% noncondensing, nonoperatingT1 Compliance (partial list)в—Џ TIA-968-Aв—Џ CS-03в—Џ Jateв—Џ ANSI T1.403E1 Compliance (partial list)в—Џ TBR4, TBR12, and TBR13в—Џ ITU-T G.703, G.704, G.823, and I.431в—Џ S016 (Australia)Weight0.40 lb (181g) You can insert the Cisco T1/E1 NIMs into the NIM slot on the supported Cisco 4000 Integrated Services Routers (ISRs). In addition to the features listed in Table 1, these modules support both T1 and E1, providing additional flexibility for supporting T1, fractional T1, E1, and fractional E1 for both voice and WAN applications simultaneously. All 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.The fourth-generation Cisco T1/E1 NIMs add improvements over the Cisco Second- and Third-Generation T1/E1 Multiflex Trunk Voice and WAN Interface Cards (MFT VWIC2s and VWIC3s, respectively). The fourth-generation T1/E1 modules enable each port to be clocked from an independent clock source for data applications. Voice applications can now be clocked independently from data applications, with all ports for voice applications clocked from a single source.The T1/E1 modules contain an onboard Cisco Packet Voice Digital Signal Processor Module 4 (PVDM4) slot, which requires a fourth-generation PVDM4 module. A PVDM4 on the T1/E1 module is necessary for the voice features. The PVDM4 also provides for echo cancellation of up to 128-ms echo-tail length for demanding network conditions. Refer to Table 2 for all configuration options offered with the modules.These fourth-generation modules also provide increased port density per chassis compared to the Cisco Integrated Services Routers Generation 2 (ISR G2) platform. Business
