The Cisco 4000 series integrated services routers (ISRs) host the Cisco network interface modules (NIMs), which have evolved from the enhanced high-speed WAN interface card (EHWIC), increasing port density and module capability. Up to three integrated NIM slots on the 4000 series allow for flexible configurations. The NIMs support online insertion and removal (OIR), reducing the downtime, required for replacement modules.

Specifications

General
   Device Type:  Expansion module
   Form Factor:  Plug-in module

Networking
   Ports:  FXS/DID x 4
   Connectivity Technology:  Wired
   Network / Transport Protocol:  RTP, RTCP
   Remote Management Protocol:  SNMP
   Features:  Management Information Base (MIB), echo cancellation
   Compliant Standards:  G.711, G.729a, G.726, ITU-T H.323

Expansion / Connectivity
   Interfaces:  4 x FXS/DID

Miscellaneous
   Compliant Standards:  VCCI, CISPR 24, CISPR 22, DR PTC220, CS-03, AS/ACIF S002, KN22, EN61000-3-2:2006, EN 300 386 V1.6.1, EN 55022:2010, ICES-003 issue 5, TIA-968-B

Software / System Requirements
   OS Required:  Cisco IOS XE 16.5 and above

Compatibility Information
   Designed For:  Cisco 4451-X, 4451-X Application Experience, 4451-X Integrated Services Router, 4451-X Integrated Services Router Security Bundle, 4451-X Integrated Services Router Voice and Video Bundle, 4451-X Integrated Services Router Voice Security Bundle