NIM-2FXO – 2-Port FXO Voice – Analog NIM – Cisco 4000 ISR
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NIM-2FXO Description
The NIM-2FXO is a Cisco 2-port analog voice Network Interface Module with Foreign Exchange Office interfaces for connecting Cisco 4300 and 4400 Series ISR voice gateways to PSTN lines or PBX trunks. The module has two FXO ports with an onboard DSP, so the router needs no PVDM, and it supports online insertion and removal when no calls are active. The module runs on Cisco IOS XE 3.13.4 or later, needs at least the Unified Communications technology package for voice, and is not supported on 2900 or 3900 routers.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
NIM-2FXO |
|
Product type |
2-port FXO Network Interface Module |
|
Cisco ordering description |
2-port Network Interface Module – FXO (Universal) |
|
Total ports |
2 FXO voice ports |
|
Analog interface role |
Foreign Exchange Office line interface |
|
ISR G2 comparison |
VIC2-2FXO |
|
Supported router context |
Cisco 4000 Series ISR NIM slots; Cisco 4300 and 4400 Series support context |
|
Cisco IOS XE release for this SKU |
XE3.13.4, XE3.14.3, XE3.15.1, XE3.16 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 |
|
Weight |
0.42 lb (191 g) |
Application Scenarios
A branch voice gateway terminates two analog PSTN lines on the module’s FXO ports, using loop-start or ground-start signaling with caller ID, and routes the calls into the router’s VoIP dial plan.
A site with a legacy PBX or key system attaches two of its trunk lines to the router, so the existing telephone system keeps its analog lines while calls also route over the WAN.
Product Comparison
|
Parameter |
NIM-2FXO | ||
|---|---|---|---|
|
Total ports |
2 FXO ports |
4 FXO ports |
2 FXS/FXS-E/DID ports and 4 FXO ports |
|
Supported platforms |
Cisco 4300 and 4400 Series ISR |
Cisco 4300 and 4400 Series ISR |
Cisco 4300 and 4400 Series ISR |
|
DSP note |
Voice NIM includes onboard DSP |
Voice NIM includes onboard DSP |
Voice NIM includes onboard DSP |
|
Cisco IOS XE release for this SKU |
XE3.13.4, XE3.14.3, XE3.15.1, XE3.16 and above |
XE3.13.4, XE3.14.3, XE3.15.1, XE3.16 and above |
XE3.14.3, XE3.15.1, XE3.16 and above |
|
OIR or hot-swap support |
Supported in Cisco 4000 Series ISR NIM slots |
Supported in Cisco 4000 Series ISR NIM slots |
Supported in Cisco 4000 Series ISR NIM slots |
NIM-2FXO has two FXO ports, while NIM-4FXO has four, so FXO line count is the first difference. NIM-2FXS/4FXO combines two FXS/FXS-E/DID ports with four FXO ports, which a site needs when analog phones or fax must share the slot with four PSTN or PBX lines. The software floor also differs: NIM-2FXO and NIM-4FXO run from IOS XE3.13.4, while NIM-2FXS/4FXO starts at XE3.14.3, so a router still on XE3.13.4 stays on NIM-2FXO or NIM-4FXO.
Ordering Checklist
- Supported hosts: Order for a Cisco 4400 or 4300 Series ISR. These voice NIMs are not supported on 2900 or 3900 routers.
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | NIM-2FXO | Product type | FXO analog voice Network Interface Module |
| Cisco ordering description | 2-port Network Interface Module – FXO (Universal) | Total ports | 2 FXO voice ports |
| Analog interface role | Foreign Exchange Office line interface | ISR G2 comparison | VIC2-2FXO |
| 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 | XE3.13.4, XE3.14.3, XE3.15.1, XE3.16 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 | Voice-port configuration form | voice-port slot/subunit/subslot |
| FXO signaling options | groundStart or loopStart | Dialing method options | DTMF, MF, or pulse |
| Call progress tone setting | cptone locale under voice-port configuration | Ring detection setting | ring number under FXO voice-port configuration |
| FXO connection role | PBX, key system, off-premises PSTN connection, or analog CAMA trunk service | FXO feature notes | Caller ID, battery reversal detection, cable detection, and overload protection |
| 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 | Managed OIR restriction | Managed OIR is not supported with active calls |
| Cabling note | Straight-through 2-wire cable for NIM FXO and FXS port connections | Network management | Remote and local configuration, monitoring, and troubleshooting from Cisco IOS XE Software CLI |
| Weight | 0.42 lb (191 g) | Official ordering description | 2-port Network Interface Module – FXO (Universal) |
Quality Certifications
Customer Reviews
Questions & Answers
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Which routers can host NIM-2FXO?
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Which Cisco IOS XE release does NIM-2FXO need?
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Does NIM-2FXO support the clock-participate command?
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Which call-control protocols can NIM-2FXO use?
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Can NIM-2FXO carry E-911 calls over analog CAMA trunks?
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Is NIM-2FXO listed for the Catalyst 8300 Series platforms?
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