Cisco NIM-2FXSP 2-port Network Interface Module for ISR 4000 Series Routers NIM2FXSP

DESCRIPTION:
The Cisco NIM-2FXSP is a 2-port voice network interface module (NIM) that provides a combination of FXS and FXO functionality for Cisco ISR 4000 Series routers. It enables analog voice and fax services over IP, supporting both inbound and outbound calls through the public switched telephone network (PSTN). Designed for business-class VoIP deployments, this module integrates voice connectivity directly into the router chassis, reducing the need for external gateways.

TECHNICAL SPECIFICATIONS:
Model Number: NIM-2FXSP
Brand: Cisco
Interface Type: 2-port voice module (1 FXS + 1 FXO)
FXS Port: Supports analog phones, fax machines, and modems
FXO Port: Connects to the PSTN or PBX
Compatibility: Cisco ISR 4000 Series routers (e.g., 4321, 4331, 4351)
Signaling Support: Loop start, ground start
Echo Cancellation: G.168 compliant
Hot Swappable: Yes (with router support)
Power Source: Supplied by router chassis
Dimensions: 0.8" x 3.1" x 6.5" (20 x 78 x 165 mm)
Weight: Approx. 0.5 lbs (0.23 kg)