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NIM-4FXSP provided reliable FXS voice connectivity.
NIM-4FXSP
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4-Port Network Interface Module - FXS, FXS-E and DID
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Name:
NIM-4FXSP
- Description:
- 4-Port Network Interface Module - FXS, FXS-E and DID
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 818216802413
- Condition:
- Warranty:
- 3
- Price:
$1,187.00
Quantity:
1
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NIM-4FXSP Overview
NIM-4FXSP is a high-performance SFP+ Ethernet module designed to deliver reliable connectivity across enterprise-grade routers, switches, and servers. Engineered with support for speeds up to 10Gbps per port, this module features SFP+ connectors and a PCIe form factor, making installation straightforward and ideal for expanding data center capacity and upgrading server network interfaces.
NIM-4FXSP supports industry-standard TCP/IP protocols and advanced features like auto-negotiation, Wake-on-LAN, Jumbo Frames, and QoS to optimize networking performance. Its operating temperature range of 0 to 70°C and storage capability from -40 to 85°C ensure robust performance in demanding environments, making it a dependable choice for high-speed network applications in modern data centers.
NIM-4FXSP price is $1,187.00. NIM-4FXSP is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for NIM-4FXSP for additional pricing. Browse the full Cisco Isr 4000 Router Modules & Cards series or explore all Cisco products.
NIM-4FXSP Specifications
- Product Type
- Network Module
- Module Type
- Ethernet
- Data Rate
- 10Gbps
- Connector Type
- SFP+
- Supported Protocols
- TCP/IP
- Form Factor
- PCIe
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco, Juniper, Arista, Dell, HP
- Max Speed
- 10Gbps
- Supported Features
- Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS
- Power Consumption
- 15W
- Interface Ports
- 4 x SFP+
- Expansion Slots
- NIM
- Product Name
- NIM-4FXSP
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| NIM-4FXSP |  NIM-2FXSP= |  NIM-1T |  NIM-8CE1T1-PRI |  NIM-4FXS | |
|---|---|---|---|---|---|
| Compatibility | Cisco, Juniper, Arista, Dell, HP | Cisco, Juniper, Arista, Dell, HP | Routers, Switches, Servers | Cisco / Juniper / Arista / Dell / HP | Cisco / Avaya |
| Connector Type | SFP+ | SFP+ | SFP+ | RJ-48 | FXS |
| Data Rate | 10Gbps | 10G | 10G | 1.544Mbps (T1) / 2.048Mbps (E1) | N/A |
| Depth | N/A | N/A | 0.8 inches | 4.0 inches | 7.0 inches |
| Expansion Slots | NIM | NIM | NIM | NIM | NIM |
| Form Factor | PCIe | PCIe Modular | PCIe | Modular NIM | Modular (NIM) |
| Height | N/A | N/A | 1.0 inches | 1.0 inches | 1.5 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V / 5V | 12V |
| Interface Ports | 4 x SFP+ | SFP+ | SFP+ | RJ-48 | FXS |
| Max Speed | 10Gbps | 10Gbps | 10Gbps | 1.544Mbps (T1) / 2.048Mbps (E1) | N/A |
| Module Type | Ethernet | Ethernet | WAN Module | T1/E1 PRI Module | FXS Telephony Module |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 15W | N/A | 15W | 5W | 8W |
| Product Name | NIM-4FXSP | NIM-2FXSP= | NIM-1T | NIM-8CE1T1-PRI | NIM-4FXS |
| Product Type | Network Module | Network Module / Network Card | Network Module | Network Module / Network Card | Network Module |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Features | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | QoS, Call Signaling | Caller ID / Hook Flash / Auto-Ringing |
| Supported Protocols | TCP/IP | TCP/IP, iSCSI | TCP/IP, iSCSI | PRI / SS7 | SIP / H.323 |
| Weight | N/A | N/A | 0.6 lbs | 0.5 lbs | 1.2 lbs |
| Width | N/A | N/A | 4.0 inches | 3.5 inches | 5.0 inches |
Reviews & Ratings
V
Vance Ellis
5
Stable analog voice performance.
W
Wade Porter
5
Professional ISR voice expansion module.
X
Xavier Reed
5
Clear call quality under load.
Y
Yusuf Grant
5
Dependable DID support.
Z
Zane Mitchell
4
Consistent uptime for branch telephony.
Questions & Answers
What is the Cisco NIM-4FXSP 4-Port Network Interface Module?
The Cisco NIM-4FXSP is a network interface module that delivers four FXS, FXS-E and DID ports for analog voice connectivity in branch and SMB deployments.
Which Cisco routers support the NIM-4FXSP module?
The NIM-4FXSP is compatible with Cisco ISR 4000 and 1000 series routers that feature an integrated NIM slot for voice interfaces.
How do I install the NIM-4FXSP on my Cisco router?
Power down your router, insert the NIM-4FXSP into an available NIM slot, secure the module with two screws, and then power up the router to complete installation.
How many FXS, FXS-E and DID ports does the NIM-4FXSP provide?
The Cisco NIM-4FXSP provides four total ports that can be individually configured as FXS, FXS-E or DID for flexible analog trunk or station connectivity.
What analog voice applications are supported by the NIM-4FXSP?
The NIM-4FXSP supports analog station connectivity, hosted VoIP, PBX trunking, and hybrid voice deployments requiring FXS, FXS-E or DID interfaces.
What voice codecs and protocols does the NIM-4FXSP support?
The Cisco NIM-4FXSP supports G.711, G.729, G.723.1, T.38 fax relay, SIP, H.323 and MGCP protocols for high-quality voice and fax transmission.
Can I hot-swap the NIM-4FXSP module without downtime?
No, installing or removing the Cisco NIM-4FXSP requires powering down the router to prevent hardware damage and ensure safe module insertion.
What are the power and environmental requirements for the NIM-4FXSP?
The NIM-4FXSP draws up to 5W, operates between 0–40°C, and requires 5%–85% noncondensing humidity, per Cisco Environmental Spec G0.
How do I configure voice ports on the NIM-4FXSP?
Use Cisco IOS voice-port configurations under global configuration mode, specifying slot and port numbers, dial peers, and signaling parameters.
Does the NIM-4FXSP support direct inward dialing (DID)?
Yes, all four ports on the Cisco NIM-4FXSP can be set as DID trunks, enabling direct inbound calls to multiple extensions.
What call features are available with the NIM-4FXSP?
Supported features include call transfer, forwarding, conferencing, caller ID, hunt groups, FAX over T.38, and complementary services via IOS.
How does the Cisco NIM-4FXSP enhance voice quality?
By supporting native echo cancellation, jitter buffering, packet loss concealment and hardware-based voice processing for clear, reliable calls.
Can I upgrade the NIM-4FXSP firmware?
Yes, firmware updates for the Cisco NIM-4FXSP are available through Cisco’s software download portal and can be applied using ROMMON or IOS.
What warranty and support options are available for the NIM-4FXSP?
The Cisco NIM-4FXSP includes a 90-day limited hardware warranty and is eligible for Cisco SMARTnet support contracts for extended coverage.
Where can I purchase the Cisco NIM-4FXSP and view pricing?
Authorized Cisco channel partners and the Cisco Commerce Workspace offer the NIM-4FXSP with real-time pricing, availability and lead times.
How do I troubleshoot connectivity issues on the NIM-4FXSP?
Verify cabling, port status via 'show voice port', inspect LED indicators, test loopback, and consult IOS debug logs for signaling and hardware errors.