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Comparison of Analog Voice Network Interface Modules for Cisco 4000 Series ISRs

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 new or replacement modules.

The available modules include 2-port and 4-port foreign exchange station (FXS), direct inward dial (DID), foreign exchange office (FXO), a combination of 2-port FXS and 4-port FXO, 4-port ear and mouth (E/M), and 2-port and 4-port basic rate interface (BRI). The BRI cards support only voice features. The NIMs have a dedicated digital signal processor (DSP) that will be used for time-division multiplexing (TDM) analog voice services.

Table 1 shows the comparison.

Part Number	Number of Ports	ISR G2 comparison	Cisco IOS Release	Weight
NIM-2FXO	2	VIC2-2FXO	XE3.13.4, XE3.14.3, XE3.15.1, XE3.16 and above	0.42 lb (191 g)
NIM-4FXO	4	VIC2-4FXO	XE3.13.4, XE3.14.3, XE3.15.1, XE3.16 and above	0.44 lb (200 g)
NIM-2FXS	2	VIC3-2FXS/DID	XE3.13.4, XE3.14.3, XE3.15.1, XE3.16 and above	0.42 lb (191 g)
NIM-4FXS	4	VIC3-4FXS/DID	XE3.13.4, XE3.14.3, XE3.15.1, XE3.16 and above	0.44 lb (200 g)
NIM-2FXS/4FXO	6	VIC2-4FXO and VIC3-2FXS/DID	XE3.14.3, XE3.15.1, XE3.16 and above	0.52 lb (236 g)
NIM-2FXSP	2	VIC3-2FXS/DID	XE16.5 and above	0.42 lb (191 g)
NIM-4FXSP	4	VIC3-4FXS/DID	XE16.5 and above	0.44 lb (200 g)
NIM-2FXS/4FXOP	6	VIC2-4FXO and VIC3-2FXS/DID	XE16.5 and above	0.52 lb (236 g)
NIM-4E/M	4	VIC3-2E/M	XE3.14.3, XE3.15.1, XE3.16 and above	0.44 lb (200 g)
NIM-2BRI-NT/TE	2	VIC2-2BRI-NT/TE	XE3.14.3, XE3.15.1, XE3.16 and above	0.42 lb (191 g)
NIM-4BRI-NT/TE	4	VIC2-2BRI-NT/TE	XE3.14.3, XE3.15.1, XE3.16 and above	0.44 lb (200 g)

Table 2 shows the comparison of their standards.

Standard	Description
NIM-FXO	TIA-968-B (USA) CS-03 (Canada) AS/CA S002 (Australia) AS/CA S003 (Australia) PTC220 (New Zealand) TBR 21 (CE countries)
NIM-FXS	TIA-968-B (USA) CS-03 (Canada) AS/CA S003 (Australia) PTC220 (New Zealand)
NIM-BRI	TIA-968-B (USA) CS-03 (Canada) AS/ACIF S031 (Australia) PTC220 (New Zealand) TBR 3 (CE countries) ITU-T I.430
NIM-E/M	TIA-968-B (USA) CS-03 (Canada) AS/CA S003 (Australia)

More related topics:

Cisco 4000 Series Routers: The King of ISR

Benefits of Migrating to Cisco ISR 4000 & Comparison of ISR 4000 Models

Categories: Routers

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