[shortdesc] Expansion module FXS/DID x 4 for Cisco 4451-X [/shortdesc] [specifications] Telnet or console Remote and local configuration, monitoring, and troubleshooting from Cisco IOS XE Software command-line interface. Simple Network Management Protocol (SNMP) Router and data service unit (DSU)/channel service unit (CSU) managed by single SNMP agent; router, DSU, and CSU appear as a single network entity to the userStandard MIB (MIB II)Cisco Integrated DSU/CSU MIBRFC 1406 T1 MIB, including Alarm Detection and Reporting SNMP traps Generated in response to alarms Standard TIA-968-B (USA)CS-03 (Canada)AS/CA S003 (Australia)PTC220 (New Zealand) Emission 47 CFR Part 15CISPR22: Edition 6.0: 2008CNS13438: 2006EN 300 386 V1.6.1EN 55022:2010EN61000-3-2: 2006 [Inc amd 1 '&' 2]EN61000-3-3: 2008ICES-003 Issue 5: 2012KN 22: 2009TCVN 7189: 2009VCCI: V-3/2013.04 Immunity CISPR24: 2010EN 300 386 V1.6.1EN55024: 2010KN24: 2011TCVN 7317: 2003 [/specifications] Use Cisco NIM-4FXSP Expansion Module for Maximum Speed & Capability Cisco NIM-4FXSP Expansion Module has compatibility with Cisco 4000 Series Integrated Services Routers. Key Benefits of Cisco NIM-4FXSP Expansion Module Cisco NIM-4FXSP Expansion Module delivers maximum speed for WAN interface card (EHWIC) integration and the increased port density and capability. It has up to three integrated NIM slots on the 4000 series that allow for flexible configurations. Cisco Interface Modules support online insertion and removal and reduce downtime for replacement modules. Cisco NIM-4FXSP Expansion Module Overview Number of Ports 4 ISR G2 comparison VIC3-4FXS/DID Cisco IOS Release XE16.5 and above