Items purchased through Cisco Outlet are remanufactured. Conditions may vary from the visual depictions on the site.
NIM-4MFT-T1/E1-RF
Cisco Fourth-Generation Multi-flex Trunk Voice/Clear-channel Data T1/E1 Module - expansion module
Inventory quantities are subject to availability and are not guaranteed until the order is placed.
The Cisco NIM-4MFT-T1/E1 is a 4th-generation 4-port Multiflex Trunk (MFT) Voice and WAN Network Interface Module (NIM) designed for the Cisco 4000 Series Integrated Services Routers (ISR 4000). It provides four T1/E1 ports that can be configured for voice or data applications, consolidating the functions of a WAN interface card (WIC), voice interface card (VIC), ISDN PRI, dial-access integration, and integrated DSU/CSU into a single module. This high-density module is ideal for branch offices requiring multiple simultaneous T1 or E1 connections to the PSTN, PBX systems, or WAN providers while carrying IP data traffic on the same platform.
This remanufactured unit has been professionally inspected, tested, and restored to meet Cisco quality standards, delivering the same reliable performance as new. Each port supports T1 (1.544 Mbps) or E1 (2.048 Mbps) interfaces with AMI/B8ZS line coding, ESF/D4 framing (T1), and HDB3/AMI (E1). The module features an onboard PVDM4 slot for voice DSP processing, enabling packet voice (H.323, SIP, MGCP, SCCP), ISDN PRI, CAS signaling, and drop-and-insert TDM multiplexing. Each port can be independently clocked for data applications; all voice ports share a single clock domain. Note: all four ports must be configured as the same type (all T1 or all E1).
Key Features:
• 4 x T1/E1 ports supporting voice (CAS, PRI) and clear-channel WAN data applications
• Combines WIC, VIC, ISDN PRI, DSU/CSU, and drop-and-insert multiplexer functions in one module
• Onboard PVDM4 slot for voice DSP processing (PVDM4 module sold separately)
• Supports H.323, SIP, MGCP, and SCCP voice over IP protocols
• Echo cancellation up to 128 ms echo-tail length via PVDM4
• Independent per-port clocking for data applications; single clock domain for voice
• Compatible with Cisco ISR 4000 Series routers (ISR 4321, 4331, 4351, 4431, 4451)
• Dimensions: 1.25 x 3.50 x 7.24 in.; operating temperature: 0 to 50°C
This module is ideal for branch offices requiring high-density T1/E1 voice and WAN connectivity on a single Cisco ISR 4000 platform. By choosing remanufactured Cisco components, you are making an environmentally responsible decision while maintaining the performance and compatibility your network infrastructure demands.
| Data Transfer Rate | 2.048 Mbps |
| Designed For | Cisco 4451-X, 4451-X Application Experience, 4451-X Integrated Services Router Security Bundle, 4451-X Integrated Services Router Voice and Video Bundle, 4451-X Integrated Services Router Voice Security Bundle |
| Device Type | Expansion module |
| Dimensions (WxDxH) | 3.5 in x 7.2 in x 1.3 in |
| Form Factor | Plug-in module |
| Line Rate | T-1/E-1 |
| Ports | T1/E1 x 4 |
| Compliant Standards | CISPR 22 Class A, CISPR 24, EN 61000-3-2, EN 61000-3-3, EN55024, EN55022 Class A, UL 60950, EN50082-1, EN 61000-4-2, EN 61000-4-3, AS/NZ 3548 Class A, |
| Connectivity Technology | Wired |
| Data Transfer Rate | 2.048 Mbps |
| Depth | 7.2 in |
| Designed For | Cisco 4451-X, 4451-X Application Experience, 4451-X Integrated Services Router Security Bundle, 4451-X Integrated Services Router Voice and Video Bund |
| Device Type | Expansion module |
| Features | Integrated CSU/DSU |
| Form Factor | Plug-in module |
| Height | 1.3 in |
| Humidity Range Operating | 10 - 85% (non-condensing) |
| Interfaces | 4 x T1/E1 |
| Line Coding Format | AMI, B8ZS, HDB3 |
| Line Rate | T-1/E-1 |
| Max Operating Temperature | 122 |
| Min Operating Temperature | 32 |
| Ports | T1/E1 x 4 |
| Remote Management Protocol | SNMP, Telnet |
| Status Indicators | Carrier detect, alarm |
| Weight | 7.05 oz |
| Width | 3.5 in |
