NIM-4FXSP – 4-Port FXS Voice – P-Version Analog NIM – Cisco ISR

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NIM-4FXSP Description

The NIM-4FXSP is a Cisco 4000 Series ISR analog voice network interface module in the P hardware revision, for branch routers that connect phones, fax machines and key systems. The module has four FXS/FXS-E/DID-capable voice ports and onboard DSP, with the same functions as the non-P hardware. The module needs Cisco IOS XE 16.5 or later, because on earlier releases it boots but its analog voice ports do not show up in the voice port summary.

Quick Specs

Parameter

Specification

Product ID

NIM-4FXSP

Product type

4-port FXS analog voice Network Interface Module

Cisco ordering description

4-Port Network Interface Module – FXS, FXS-E and DID

Total ports

4 FXS/FXS-E/DID-capable voice ports

P-version note

New manufacturing component version; no functionality change from the non-P version

Analog interface role

Station-side FXS service or DID incoming-call service

ISR G2 comparison

VIC3-4FXS/DID

Supported router context

Cisco 4000 Series ISR NIM slots; Cisco 4300 and 4400 Series support context

Cisco IOS XE release for this SKU

XE16.5 and above

Voice package requirement

Minimum Unified Communications technology package for voice applications

DSP design

Onboard DSP on the voice NIM; no dedicated motherboard PVDM required for this voice module family

OIR support

Supported in Cisco 4000 Series ISR NIM slots; managed OIR requires no active calls

Application Scenarios

Analog Phones On A Voice Router

A branch router running Cisco IOS XE 16.5 or later can connect analog phones, fax machines and key systems to the four FXS ports on the module.

DID Numbers From The PSTN

An office that gets DID numbers from the central office can land them on the DID-capable ports for incoming calls, and DID mode does not support caller ID.

Product Comparison

Parameter

NIM-4FXSP

NIM-4FXS

NIM-2FXSP

NIM-2FXS/4FXOP

Voice ports

4 FXS/FXS-E/DID-capable

4 FXS/FXS-E/DID-capable

2 FXS/FXS-E/DID-capable

2 FXS/FXS-E/DID-capable and 4 FXO

Port function

Station-side FXS or DID incoming-call service

Station-side FXS or DID incoming-call service

Station-side FXS or DID incoming-call service

Station-side FXS or DID plus line-side FXO

Supported platforms

Cisco 4300 and 4400 Series ISRs

Cisco 4300 and 4400 Series ISRs

Cisco 4300 and 4400 Series ISRs

Cisco 4300 and 4400 Series ISRs

Unsupported platforms

Cisco 2900 and 3900 Series ISRs

Cisco 2900 and 3900 Series ISRs

Cisco 2900 and 3900 Series ISRs

Cisco 2900 and 3900 Series ISRs

Cisco IOS XE release

XE16.5 and above

XE3.13.4, XE3.14.3, XE3.15.1, XE3.16 and above

XE16.5 and above

XE16.5 and above

NIM-4FXSP and NIM-4FXS have the same four FXS/FXS-E/DID-capable ports and the same Cisco ordering description, but the P hardware revision needs IOS XE 16.5 or later, whereas NIM-4FXS also runs on 3.13.4, 3.14.3, 3.15.1 and 3.16. Routers that cannot move to XE 16.5 therefore take NIM-4FXS, since the P module on an earlier release boots without showing its analog voice ports. Two station lines call for NIM-2FXSP, which has two FXS/FXS-E/DID-capable ports on the same P revision. Where FXS stations and FXO trunks share one slot, NIM-2FXS/4FXOP adds four FXO ports to two FXS-class ports.

Ordering Checklist

  • Router hosts: Order for Cisco 4300 and 4400 Series ISR NIM slots. NIM-4FXSP installs only in a 4000 Series ISR NIM slot, so 2900 and 3900 Series routers cannot take it.
  • SM-X slots: Add a NIM carrier card when the host uses an SM-X slot; it converts the slot to a NIM slot for one single-wide or double-wide NIM. Without it, NIM-4FXSP cannot be installed.

Specifications

Parameter Specification Parameter Specification
Product ID NIM-4FXSP Product type FXS analog voice Network Interface Module
Cisco ordering description 4-Port Network Interface Module – FXS, FXS-E and DID Total ports 4 FXS/FXS-E/DID-capable voice ports
P-version note Created due to a new hardware component in manufacturing Functional relationship No functionality change from the non-P version
Analog interface role Station-side FXS service or DID incoming-call service ISR G2 comparison VIC3-4FXS/DID
Supported router family Cisco 4000 Series Integrated Services Routers Documented ISR series context Cisco 4300 and 4400 Series ISRs
Unsupported ISR family Not supported with Cisco 2900 and 3900 Series ISRs Cisco IOS XE release for this SKU XE16.5 and above
Voice package requirement Minimum Unified Communications technology package for voice applications DSP design Onboard DSP on the voice NIM family
Motherboard PVDM requirement No dedicated packet voice DSP module required on the router motherboard for this voice NIM family FXS endpoint connection role Direct connection to phones, fax machines, and key systems
DID connection role Off-premises DID connection from the central office for incoming PSTN calls DID caller ID note DID mode does not support caller ID
FXS feature notes FXS or DID functionality, configurable long loop ports, message waiting indicator, and cable detection FXS signaling options did delay-dial, did immediate, did loopStart, groundStart, or loopStart
Ring frequency options 20, 25, 30, or 50 Hz Call progress tone setting cptone locale under voice-port configuration
Voice-port configuration form voice-port slot/subunit/subslot Managed OIR restriction Managed OIR is not supported with active calls
OIR support FXS, FXO, E/M, and BRI NIMs can be inserted into supported Cisco 4000 Series ISR NIM slots without powering off the router Cabling note Straight-through 2-wire cable for NIM FXS and FXO port connections
Analog NIM jumper note No jumpers to set on NIM analog modules Network management Remote and local configuration, monitoring, and troubleshooting from Cisco IOS XE Software CLI

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    Great value for the money. Highly recommended.

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    Layer23 doesn’t just take your order and disappear. They stay involved.

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    Our long-term plan includes Layer23 as a key supply partner.

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    Posted on 12/06/2024
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    Solid packing! You could drop a rock on it and it would be fine.

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    We rely on you for these components. Always reliable.

Questions & Answers

  • Which routers and slots can host NIM-4FXSP?

    NIM-4FXSP installs in NIM slots on Cisco 4300 and 4400 Series ISRs. A host with an SM-X slot needs a NIM carrier card to convert the slot. Cisco 2900 and 3900 Series ISRs do not support the module.
  • Which Cisco IOS XE release does NIM-4FXSP need?

    NIM-4FXSP needs Cisco IOS XE 16.5 or later. On earlier releases the module boots, but its analog voice ports do not show up in the voice port summary. Voice use also needs at least the Unified Communications technology package, and no PVDM is required on the router motherboard.
  • Is NIM-4FXSP supported as an analog voice option on the Catalyst 8300?

    Yes. The Catalyst 8300 analog voice options include NIM-4FXSP, NIM-2FXSP and NIM-4FXO among the NIMs. NIM-4FXSP adds four FXS, FXS-E and DID capable ports to a branch Catalyst 8300 for phones, fax machines and key systems. Order it when the branch needs analog stations on the router and the module fits a free NIM slot.
  • Does NIM-4FXSP support the clock-participate command?

    No. The Cisco voice NIM data sheet states that FXS NIMs, including NIM-4FXSP, do not support the clock-participate command. Do not rely on that command to synchronize the analog ports, and take router timing from its WAN or digital interfaces instead.
  • Which ring frequencies can NIM-4FXSP use on its FXS ports?

    NIM-4FXSP supports ring frequencies of 20, 25, 30 or 50 Hz. Set the value to match the attached phone or fax machine and the local country standard. A wrong ring frequency can leave the telephone silent or buzzing.
  • Does caller ID work on NIM-4FXSP when a port runs in DID mode?

    No. DID mode on NIM-4FXSP does not support caller ID. The DID signaling options in the voice port configuration are did delay-dial, did immediate and did loopStart. Use FXS mode with groundStart or loopStart signaling on any port that must pass caller ID to a connected phone.

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DataSheet Downloads

  • NIM-4FXSP Datasheet