[properties]

Properties	Cisco NIM-2FXS/4FXOP
Description	2-Port FXS/FXS-E/DID and 4-Port FXO Network Interface Module
Product Family	Cisco Voice NIM
Product Type	Analog Voice Interface Module
Supported Devices	Cisco 4300 and 4400 Series ISRs
Ports	2 x FXS (or DID), 4 x FXO
Form Factor	Single-wide NIM Slot
Connectivity Technology	Wired (Analog Voice over TDM)
DSP	Integrated onboard DSP

[/properties] [specifications]

Specifications	NIM-2FXS/4FXOP
Number of Ports	2 x FXS/FXS-E/DID + 4 x FXO
Software Compatibility	IOS XE 16.5 or later
DSP Features	Echo cancellation (128ms), VAD, CNG, T.38 fax relay, modem passthrough
Protocol Support	SCCP, SIP, MGCP, H.323
Audio Codec Support	G.711, G.729a, G.726, G.723, iSAC (transcoding), iLBC (planned)
Caller ID Support	Yes (FXS and FXO only)
Loop/Ground Start	FXO supports both modes
Message Waiting Indicator	Yes
Weight	0.52 lb (236 g)
Compliance	TIA-968-B, CS-03, AS/CA S002, S003, PTC220, TBR21

[/specifications] [accesories]

Included Accessories
—	No additional accessories included in the box
Optional Accessories
RACK-MOUNT-KIT	Standard rack-mount accessories for ISR 4000 Series
CISCO-SM-NIM-CARRIER	NIM carrier module for SM-X slot compatibility
CAB-CONSOLE-RJ45	RJ45 console cable for CLI configuration

[/accesories]

Cisco NIM-2FXS/4FXOP Expansion Module

The 4000 Series has three integrated NIM slots that support online insertion and removal, reducing downtime for new or replacement modules. The NIMs have a dedicated DSP used for TDM analog voice services. The NIM-2FXS/4FXOP is a 2-Port FXS/FXS-E/DID and 4-Port FXO Network Interface Module.

Key Features:

• # of total ports: 6
• ISR G2 comparison: VIC2-4FXO and VIC3-2FXS/DID
• For ISR 4000 series

The tabs contain the Cisco NIM-2FXS/4FXOP datasheet with all the specifics you need.