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NIM-4FXS |
Description: | Cisco 4-Port Network Interface Module - FXS. FXS-E and DID, for ISR4451-X |
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GTIN: | 582723344703 ![]() |
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$414.77 59% off |
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NIM-4FXS
Cisco 4-Port Network Interface Module - FXS. FXS-E...
$414.77
8 in Global Warehouse
$414.77
59% off
NIM-4FXS
Cisco 4-Port Network Interface Module - FXS. FXS-E...
$414.77
35 in Global Warehouse
$414.77
59% off
TRUSTED, TRIED, PROVEN







NIM-4FXS Overview
NIM-4FXS is a high-performance telephony interface module designed to integrate seamlessly with unified communications systems by delivering four reliable FXS ports for connecting standard analog telephones. Built as a modular Network Interface Module (NIM), it is engineered to support analog voice communications over traditional FXS pathways while ensuring compatibility with leading routers, switches, and unified communications platforms.
The NIM-4FXS module supports essential VoIP protocols such as SIP and H.323, making it ideal for environments that require smooth migration from legacy telephony systems to modern IP-based communications. Its compact form factor and straightforward installation process allow network operators to efficiently expand their voice service capabilities and upgrade existing infrastructures without compromising reliability or performance.
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NIM-4FXS Specifications
Product Type | Network Module |
Module Type | FXS Telephony Module |
Data Rate | N/A |
Connector Type | FXS |
Supported Protocols | SIP / H.323 |
Form Factor | Modular (NIM) |
Operating Temperature | 0 to 70°C |
Storage Temperature | -40 to 85°C |
Input Voltage | 12V |
Compatibility | Cisco / Avaya |
Max Speed | N/A |
Supported Features | Caller ID / Hook Flash / Auto-Ringing |
Power Consumption | 8W |
Interface Ports | FXS |
Expansion Slots | NIM |
Product Name | NIM-4FXS |
Height | 1.5 inches |
Width | 5.0 inches |
Depth | 7.0 inches |
Weight | 1.2 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.







Product Comparison Table
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Product Type | Network Module | Network Module | Network Module / Network Card | Network Module | Network Module / Network Card |
Module Type | QSFP | Ethernet | Ethernet | FXS Telephony Module | Ethernet |
Data Rate | 100G | 1Gbps | 10Gbps | N/A | 10G |
Connector Type | QSFP | RJ-45 | SFP+ | FXS | SFP+ |
Supported Protocols | TCP/IP, Ethernet | TCP/IP | TCP/IP / iSCSI | SIP / H.323 | TCP/IP |
Form Factor | Modular | Modular | PCIe | Modular (NIM) | PCIe |
Operating Temperature | 0 to 70°C | 0 to 50°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
Storage Temperature | -40 to 85°C | N/A | -40 to 85°C | -40 to 85°C | -40 to 85°C |
Input Voltage | 3.3V | N/A | 3.3V | 12V | 3.3V |
Compatibility | Cisco, Juniper, Arista, Dell, HP | Cisco | Dell / HP | Cisco / Avaya | Routers, Switches, Servers |
Max Speed | 100Gbps | 1Gbps | 10Gbps | N/A | 10Gbps |
Supported Features | Auto-negotiation, Jumbo Frames, Energy Efficient Ethernet | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Caller ID / Hook Flash / Auto-Ringing | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
Power Consumption | N/A | N/A | 15W | 8W | 15W |
Interface Ports | QSFP | Ethernet | SFP+ | FXS | Ethernet |
Expansion Slots | N/A | N/A | N/A | NIM | N/A |
Product Name | EPA-QSFP-1X100GE= | C9800-18X1GE | PVDM3-16 High-Performance Ethernet Module | NIM-4FXS | RE-S-X6-64G-S |
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