United States$5,000,000+
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FXS ports provided dependable analog connectivity.
NIM-2FXSP
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Voice Module (2-port FXS)
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Name:
NIM-2FXSP
- Description:
- Voice Module (2-port FXS)
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 882658947681
- Condition:
- Warranty:
- 3
- List Price:
$590.00
- Price:
$433.0026.6% off
Quantity:
1
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NIM-2FXSP Overview
NIM-2FXSP is a high-performance Ethernet module engineered to deliver reliable 10Gbps connectivity via an SFP+ connector. Designed for deployment in routers, switches, and servers, this module supports vital protocols such as TCP/IP and iSCSI, making it ideal for data center applications that require secure, fast, and scalable network connectivity.
Optimized for modern networking environments, the NIM-2FXSP features a modular form factor for easy installation and expansion. It is built to enhance and upgrade server network interfaces, providing a robust solution for expanding data center capacity and linking to high-speed networks without compromising on performance.
NIM-2FXSP price is $433.00, a 26.6% saving from the Cisco list price of $590.00. NIM-2FXSP is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for NIM-2FXSP for additional pricing. Browse the full Cisco Isr 4000 Router Modules & Cards series or explore all Cisco products.
NIM-2FXSP Specifications
- Height
- 1.0 inches
- Power Consumption
- 15W
- Depth
- 5.5 inches
- Expansion Slots
- NIM
- Form Factor
- Modular
- Weight
- 1.2 lbs
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Connector Type
- SFP+
- Product Type
- Network Module / Network Card
- Module Type
- Ethernet
- Max Speed
- 10Gbps
- Interface Ports
- Ethernet
- Supported Features
- Auto-negotiation, Jumbo Frames, QoS
- Data Rate
- 10Gbps
- Supported Protocols
- TCP/IP, iSCSI
- Compatibility
- Cisco, Juniper, Dell, HP
- Product Name
- NIM-2FXSP Network Interface Module
- Width
- 4.2 inches
NIM-2FXSP Use Case
Remote Branch Office Telephony Integration with NIM-2FXSP-Voice Module (2-Port FXS)
In a multi-site enterprise, deploy the NIM-2FXSP-Voice Module (2-port FXS) on Cisco ISR routers at remote branches to connect legacy analog telephones and fax machines directly into your corporate SIP trunk. This use case centralizes voice management, cuts local PSTN toll charges by up to 30%, and accelerates deployment by leveraging existing analog devices without on-site gateways.
Hospitality Guest-Room Analog Phone Service over IP with NIM-2FXSP-Voice Module
Large hotels and resorts install the NIM-2FXSP-Voice Module (2-port FXS) in Cisco routers to extend in-room analog telephones and wake-up call systems over the IP network. The module simplifies provisioning of guest services, reduces maintenance costs by 20%, and delivers consistent call quality and centralized billing—enhancing guest satisfaction and operational efficiency.
Healthcare Clinic Emergency Lines and Fax Integration via NIM-2FXSP-Voice Module
Medical clinics and small hospitals integrate emergency analog panic buttons, nurse-call stations, and fax machines using the NIM-2FXSP-Voice Module (2-port FXS) on Cisco ISR platforms. This solution ensures regulatory compliance for analog life-safety circuits, maintains high availability with built-in router redundancy, and consolidates voice and data infrastructure—improving patient safety and reducing equipment footprint.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| NIM-2FXSP |  NIM-2BRI-NT/TE |  NIM-ES2-8-P |  NIM-2FXS/4FXOP |  SM-X-NIM-ADPTR | |
|---|---|---|---|---|---|
| Product Type | Network Module / Network Card | Network Interface Module | Network Module | Network Module | Network Module / Network Card |
| Module Type | Ethernet | WAN | Ethernet Module | NIM | Ethernet |
| Data Rate | 10Gbps | N/A | 10Gbps | 1G | 10G |
| Connector Type | SFP+ | N/A | RJ-45 | RJ-11 | SFP+ |
| Supported Protocols | TCP/IP, iSCSI | TCP/IP | TCP/IP, UDP | TCP/IP | TCP/IP / iSCSI |
| Form Factor | Modular | Modular | Modular | Modular | PCIe |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco, Juniper, Dell, HP | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP | Cisco | Cisco / Juniper / Dell |
| Max Speed | 10Gbps | N/A | 10Gbps | 1Gbps | 10Gbps |
| Supported Features | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation / QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | QoS | Auto-negotiation / Jumbo Frames |
| Power Consumption | 15W | N/A | 15W | 15W | 7W |
| Interface Ports | Ethernet | Ethernet | Ethernet | N/A | SFP+ |
| Expansion Slots | NIM | NIM | NIM | NIM | NIM |
| Product Name | NIM-2FXSP Network Interface Module | NIM-2BRI-NT/TE | NIM-ES2-8-P Ethernet Module | NIM-2FXS/4FXOP | SM-X-NIM-ADPTR |
| Height | 1.0 inches | N/A | 1.5 inches | N/A | 0.5 inches |
| Width | 4.2 inches | N/A | 3.0 inches | N/A | 3.5 inches |
| Depth | 5.5 inches | N/A | 0.5 inches | N/A | 4.3 inches |
| Weight | 1.2 lbs | N/A | 1.25 lbs | N/A | 0.4 lbs |
Reviews & Ratings
S
Saba Qureshi
5
Easy installation.
M
Marco Silva
5
Consistent performance.
H
Helen Brooks
4
No call drops.
N
Noman Ashraf
5
Reliable module.
Questions & Answers
What is Cisco NIM-2FXSP Voice Module (2-port FXS)?
The Cisco NIM-2FXSP Voice Module (2-port FXS) is a router interface module providing two FXS ports for connecting analog voice devices to IP networks.
How many FXS ports does the NIM-2FXSP provide?
The NIM-2FXSP provides two FXS ports that supply signaling, voice, and ring voltage for analog telephones and fax machines.
What types of analog devices are supported?
The module supports single-line analog telephones, fax machines, and POS terminals for voice and data transmission.
What is the difference between FXS and FXO ports?
FXS ports deliver dial tone and power to analog devices; FXO ports receive line voltage from PSTN, enabling trunk connectivity.
Which Cisco routers are compatible with the NIM-2FXSP?
The NIM-2FXSP is compatible with Cisco ISR 4000, ISR G2, and select ASR 1000 Series routers that feature NIM slots.
How do I install the NIM-2FXSP module?
Power off the router, insert the NIM-2FXSP into an available NIM slot, secure the module, then power on and verify with show controllers.
What power requirements does the NIM-2FXSP have?
The module draws its power from the host router’s power supply; no external power source is required for the FXS ports.
Which codecs are supported by the NIM-2FXSP?
Supported codecs include G.711μ/a, G.729a, G.726, and G.723 for high-quality voice compression and efficient bandwidth usage.
What firmware version is required for operation?
The NIM-2FXSP requires Cisco IOS XE release 3.13S or later to ensure full feature support and stability.
How do I configure dial peers for analog calls?
Use voice-port configuration, assign correct port indexes, and define dial-peer voice tags specifying session target or port path.
What LEDs and indicators are available on the module?
Each FXS port includes green activity LEDs for on-hook/off-hook status and red LEDs for fault conditions and ring status.
Is the NIM-2FXSP hot-swappable?
No. The NIM-2FXSP must be installed or removed only when the router is powered down to prevent hardware damage.
How do I troubleshoot connectivity issues?
Verify physical cabling, use show controllers voice-port commands, check IOS version, and review dial-peer and voice-port configurations.
What voice quality can I expect?
With G.711 codec, you can achieve toll-quality voice with less than 150 ms latency when network conditions are optimal.
Does the module support Caller ID and FAX passthrough?
Yes. The NIM-2FXSP supports FSK/DTMF Caller ID and T.38 fax passthrough for reliable fax communication over IP.
What warranty and support options are available?
Cisco offers a limited lifetime warranty on the module and optional SMARTnet support for 24×7 technical assistance and advance replacement.
Where can I purchase the Cisco NIM-2FXSP?
You can purchase the module through authorized Cisco resellers, the Cisco online store, or certified channel partners.