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NIM-4E/M
Analog voice network interface card NIM-4E/M (ear and mouth)
Federal agencies and Fortune 500 operations source through ORM Systems.
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Enterprise Clients
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Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
NIM-4E/M is a high-performance modular Ethernet network interface module designed to expand router capabilities by providing dedicated 1Gbps connectivity through industry-standard RJ-45 connectors. Engineered with a compact, modular form factor, this card is built for seamless installation in network interface module (NIM) slots within Cisco routers and similar chassis, reliably handling protocols such as TCP/IP to ensure robust and efficient data communications.
Optimized for use cases like upgrading server network interfaces and expanding data center capacity, the NIM-4E/M integrates features including auto-negotiation, Wake-on-LAN, jumbo frames, and QoS support to enhance network performance. It operates efficiently within an ambient temperature range of 0 to 70°C and maintains a low power consumption of 6W, making it a reliable solution in enterprise environments that require consistent high-speed connectivity.
NIM-4E/M price is $1,274.00, a 25.5% saving from the Cisco list price of $1,711.00. NIM-4E/M is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for NIM-4E/M for additional pricing. Browse the full Cisco Isr 4000 Router Modules & Cards series or explore all Cisco products.
A small-to-medium business (SMB) deploys the Cisco NIM-4E/M on its ISR router to integrate existing analog PBX E&M trunks with IP telephony. By converting mouth-and-ear circuits to SIP, the business preserves legacy voice infrastructure, reduces monthly PSTN fees, and simplifies call routing. Result: seamless migration to unified communications with minimal capital outlay and improved voice uptime.
A 100-agent contact center leverages the NIM-4E/M voice network interface card to terminate analog E&M trunks directly on its Cisco Catalyst router. This setup provides native PSTN fallback, automated trunk failover, and load-balanced dial-out across multiple analog lines. Outcome: enhanced call reliability, reduced latency, and uninterrupted customer outreach during SIP gateway maintenance or carrier outages.
A distributed retail chain equips its remote branches with NIM-4E/M modules to support analog fax machines, point-of-sale terminals, and legacy handsets. Integrated into the site ISR, the module offers secure voice encryption and local PSTN breakout via E&M interfaces. Benefit: sustained operation of mission-critical analog devices, centralized management, and resilient voice services in WAN failover scenarios.
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| NIM-4E/M |  NIM-2CE1T1-PRI |  SM-X-4X1G-1X10G |  NIM-4G-LTE-GA | |
|---|---|---|---|---|
| Product Type | Network Module / Network Card | Network Interface Module | Network Module / Network Card | Network Module |
| Module Type | Ethernet | NIM | Ethernet | 4G LTE |
| Supported Protocols | TCP/IP | TCP/IP, PRI | TCP/IP | TCP/IP |
| Form Factor | Modular | Modular | PCIe | Modular |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Compatibility | Cisco | Cisco, Juniper, Dell, HP | Cisco / Juniper / Arista / Dell / HP | Cisco |
| Expansion Slots | NIM | NIM | PCIe | NIM |
| Product Name | NIM-4E/M | NIM-2CE1T1-PRI | SM-X-4X1G-1X10G | NIM-4G-LTE-GA |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Analog E and M signaling worked as expected.
Stable interface for legacy voice integration.
Good compatibility with older PBX systems.
Reliable module for niche requirements.
Cisco quality throughout.
Analog E and M signaling worked as expected.
Stable interface for legacy voice integration.
Good compatibility with older PBX systems.
Reliable module for niche requirements.
Cisco quality throughout.
The Cisco NIM-4E/M is a four-port analog voice network interface module (two FXS and two FXO) designed for seamless integration of analog telephony with Cisco ISR routers.
The NIM-4E/M supports up to four simultaneous analog voice sessions, with each port capable of handling one active call.
The module includes two RJ-11 FXS (Foreign Exchange Station) ports for telephones and two RJ-11 FXO (Foreign Exchange Office) ports for PSTN line connections.
The NIM-4E/M is compatible with Cisco ISR 4000 and ISR 3900 series routers equipped with a Cisco NIM slot.
Power down the router, insert the NIM-4E/M into an available NIM slot, secure it with the retention screws, and power the router back on.
The module leverages the router’s internal power supply, drawing approximately 2.4 W across the +3.3 V and +12 V rails.
Supported codecs include G.711 μ-law/A-law, G.729, G.726, and G.723.1, offering flexible bandwidth and quality options.
Use Cisco IOS commands: enter global configuration mode, select each voice-port (e.g., 'voice-port 0/0:0'), set the type to fxs or fxo, and apply dial-peer settings.
The module supports up to four concurrent voice calls, one per analog port.
Yes, it supports call progress analysis, ring voltage generation, dial tone detection, and caller ID per international telephony standards.
The Cisco support website hosts the hardware installation and configuration guide under the NIM-4E/M product downloads section.
Cisco provides a one-year limited hardware warranty for the NIM-4E/M, which can be extended with Cisco Smart Net Total Care services.
Verify cable connections, use 'show voice port summary' in IOS for port status, check dial-peer configurations, and review call detail records (CDRs).
FXS ports deliver dial tone and ring voltage to analog devices, while FXO ports receive dial tone and ring voltage from the PSTN line.
No, the NIM-4E/M does not support PoE; it relies solely on the host router’s internal power supply.
Genuine Cisco NIM-4E/M modules are available through authorized Cisco partners, the Cisco online store, and certified resellers.
United States
