NIM-1MFT-T1/E1

1 port Multiflex Trunk Voice/Clear-channel Data T1/E1 Module

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Cisco Transceiver Modules support Ethernet, Sonet/SDH and Fibre Channel applications across all Cisco switching and routing platforms. Cisco pluggable transceivers offer a convenient and cost effective solution for the adoption in data center, campus, metropolitan area access and ring networks, and storage area networks. Cisco portfolio of hot pluggable interfaces offers a rich set of choices in terms of speeds, protocols, reaches and supported transmission media.

Models

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Cisco SONET/SDH SFP Modules

NIM-1MFT-T1/E1 Overview

The Cisco® Fourth-Generation 1-, 2-, 4-, and 8-Port T1/E1 Multiflex Trunk Voice and WAN Network Interface Modules (NIMs) support data and voice applications on the Cisco 4000 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 superior 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.

Quick Specs

Table 1 shows the Quick Specs.

Model	NIM-1MFT-T1/E1
*Serial data (channel-group)**	2 per port
E1 unframed G.703	Not supported
Voice channel associated signaling (CAS) (ds0-group)**	24 per port (T1) 31 per port (E1) 1 per timeslot
PRI (pri-group)*	1 per port
Drop and insert (tdm-group)	24 per port (T1) 31 per port (E1) 1 per timeslot
Dimensions (H x W x D)	1.25 x 3.50 x 7.24 in. (3.18 x 8.89 x 18.39 cm)

* channel-group refers to bonding of one or more time slots into a single High-Level Data Link Control (HDLC)-framed serial connection for IP data traffic connectivity. This connection is used for HDLC, Frame Relay, and Multilink PPP (MLPPP) serial WAN connections.

** ds0-group refers to bonding of one or more time slots into a single TDM voice connection using CAS such as ear and mouth (E&M), foreign exchange station (FXS), or foreign exchange office (FXO). This connection is used for TDM PBX or PSTN connections and typically is deployed only on T1.

*** pri-group refers to bonding of two or more time slots into a single TDM connection using ISDN signaling. This connection is typically used for TDM PBX or PSTN voice connections on T1 and E1, and also for data WAN connections on E1. Each call on the PRI is individually indicated as being a voice or data call with the ISDN bearer capability delivered with the call. Signaling is done on the D-channel, which is always channel 24 on a T1 and channel 31 on an E1.

**** tdm-group refers to cross-connecting one or more time slots from one TDM interface to another. This connection is used to groom channels from different access points onto a combined T1 or E1 uplink. Because the router merely cross-connects and does not interpret or route the traffic from the ingress interface to the egress interface, the traffic type (voice and data) is transparent to the router.

NIM-1MFT-T1/E1 Specification

NIM-1MFT-T1/E1 Specification
Capacity
Serial data (channel-group)	2 per port
E1 unframed G.703	Not supported
Voice channel associated signaling (CAS) (ds0-group)	24 per port (T1) 31 per port (E1) 1 per timeslot
PRI (pri-group)	1 per port
Drop and insert (tdm-group)	24 per port (T1) 31 per port (E1) 1 per timeslot
T1 Network Interface
Transmit bit rate	1.544 Mbps ±50 bps/32 ppm
Receive bit rate	1.544 Mbps ±50 bps/32 ppm
Line code	Alternate mark inversion (AMI) and binary 8-zero substitution (B8ZS)
AMI ones density	Enforced for n x 56-kbps channels
Framing format	D4 (Super Frame [SF]) and Extended Super Frame (ESF)
Output level (line build-out [LBO])	0, -7.5 or -15 dB
Input level	+1 dB0 down to -24 dB0
Data-terminal-equipment (DTE) interface (WIC mode)	Fractional service
DTE interface (VIC mode)	G.704 or structured
Data-communications-equipment (DCE) interface	G.704 or structured
E1 Network Interface
Transmit bit rate	2.048 Mbps ±100 bps/50 ppm
Receive bit rate	2.048 Mbps ±100 bps/50 ppm
Data rate	1.984 Mbps (framed mode) per E1 port
Clocking	Internal and loop (recovered from network)
E1 national bits	Fixed (nonconfigurable)
Encoding	High-density bipolar three (HDB3)
DTE interface (WIC mode)	Fractional service
DTE interface (VIC mode)	G.704 or structured
DCE interface	G.704 or structured
Module Specifications
Dimensions (H x W x D)	1.25 x 3.50 x 7.24 in. (3.18 x 8.89 x 18.39 cm)
Environmental	● Operating temperature: 0 to 50°C (32 to 122°F) ● Storage temperature: -20 to +65°C (-4 to 148°F) ● Relative humidity: 10 to 85% noncondensing operating; 5 to 95% noncondensing, nonoperating
T1 Compliance (partial list)	● TIA-968-A ● CS-03 ● Jate ● ANSI T1.403
E1 Compliance (partial list)	● TBR4, TBR12, and TBR13 ● ITU-T G.703, G.704, G.823, and I.431 ● S016 (Australia)
Weight	0.40 lb (181g)

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