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by Cisco
Product Line: Cisco 4000 Series
Product Type: Network Interface Module
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Title: Surplus

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Product Description

The NIM4EM module is equipped with 4 ports and is compatible with Cisco IOS releases XE3.13.4, XE3.14.3, XE3.15.1, and XE3.16 and above, supporting ISR Series Cisco 4400 and 4300. It adheres to international standards including TIA-968-B, CS-03, and AS/CA S003, and features compliance with both immunity and emission regulations such as CISPR24: 2010 and EN 55022:2010. Key functionalities include echo cancellation up to 128-ms, Comfort Noise Generation, DTMF Detection, and Multiple Voice Applications Support, enhancing voice communication quality and reliability.

FAQs for the NIM4EM

  • Q: What is the total number of ports available?
    A: 4
  • Q: Which Cisco IOS releases are supported by this device?
    A: It supports XE3.13.4, XE3.14.3, XE3.15.1, XE3.16, and above.
  • Q: Can this hardware be used with Cisco 4400 and 4300 ISR Series?
    A: Yes, it is compatible with Cisco 4400 and 4300 ISR Series.
  • Q: What standards does the device meet?
    A: It meets TIA-968-B (USA), CS-03 (Canada), and AS/CA S003 (Australia) standards.
  • Q: How does the device handle emissions and immunity?
    A: For emissions, it complies with 47 CFR Part 15, CISPR22: Edition 6.0: 2008, among others. For immunity, it meets standards such as CISPR24: 2010.
  • Q: What is the weight of this networking hardware?
    A: 0.44 lbs.
  • Q: Does the device support echo cancellation?
    A: Yes, it offers echo cancellation up to 128-ms.
  • Q: Is the device compatible with Cisco 2900 and 3900 Series ISRs?
    A: No, it does not support Cisco 2900 and 3900 Series ISRs.
  • Q: What type of voice applications does it support?
    A: It supports multiple voice applications, including voice activity detection, DTMF detection, and modem detection and pass-through.
  • Q: Does the device offer Online Insertion and Removal (OIR) support?
    A: Yes, it includes OIR support.

Product Review

The Cisco NIM4EM module offers compatibility with Cisco IOS releases XE3.13.4 through XE3.16 and above, ensuring support for a range of network environments and applications when used with Cisco 4400 and 4300 ISR Series. While the module provides essential features such as echo cancellation up to 128-ms, comfort noise generation, and support for multiple voice applications, it lacks support for Cisco 2900 and 3900 Series ISRs, limiting its application in environments utilizing these series. Moreover, the inclusion of comprehensive standards compliance and immunity specifications, alongside a lightweight design at 0.44 lbs, ensures reliable performance and easy integration into existing network infrastructures.


The Cisco NIM4EM is a network interface module designed to enhance the capabilities of Cisco Integrated Services Routers (ISRs) Series 4400 and 4300 by providing four additional ports. This module is engineered to meet various international standards, including TIA-968-B for the USA, CS-03 for Canada, and AS/CA S003 for Australia, ensuring wide compatibility and regulatory compliance. The module is also designed to adhere to numerous immunity and emission standards such as CISPR24: 2010 and EN 300 386 V1.6.1 for immunity, along with 47 CFR Part 15 and CISPR22: Edition 6.0: 2008 for emissions, providing a reliable performance in diverse operational environments. Weighing just 0.44 lbs, the NIM4EM is a lightweight addition to the ISR 4400 and 4300 series, making it an easy upgrade without significantly impacting the overall system weight. Its compatibility with various Cisco IOS Releases, including XE3.13.4, XE3.14.3, XE3.15.1, and XE3.16 and above, ensures that the module can deliver its full functionality across different network configurations and requirements. The NIM4EM excels in voice communication technologies. It features advanced voice processing capabilities such as echo cancellation with up to 128-ms delay, comfort noise generation, dual-tone multi-frequency (DTMF) detection, voice activity detection, modem detection and pass-through, and RFC 4733 digit relay. These features ensure clear and uninterrupted voice communications, making it an ideal solution for businesses that rely heavily on voice interactions. Additionally, the module provides acoustic shock protection to safeguard users' hearing during sudden loud noise incidents in voice communications. Key functionalities of the Cisco NIM4EM include: - SNMP Traps: The module can generate SNMP traps in response to alarms, allowing for efficient network management and monitoring. - OIR Support: Online Insertion and Removal (OIR) support facilitates easy upgrades and maintenance by allowing the module to be added or removed without shutting down the system. - Multiple Voice Applications Support: It supports multiple voice applications, enabling the use of varied voice services and applications on a single platform. The NIM4EM module does not support jumpers and is not compatible with Cisco 2900 and 3900 Series ISRs. Its focus on analog signal processing, combined with real-time control and transport protocols, ensures that it can handle a wide range of voice and modem communications efficiently. This makes the Cisco NIM4EM a versatile solution for businesses looking to expand their voice communication capabilities on the Cisco 4400 and 4300 ISR platforms.


Part NumberNIM4EM
Port Count4
Compatible Cisco IOS ReleasesXE3.13.4, XE3.14.3, XE3.15.1, XE3.16+
Compatible ISR Models4400, 4300 Series
Compliance StandardsTIA-968-B (USA), CS-03 (Canada), AS/CA S003 (Australia)
Immunity StandardsCISPR24: 2010, EN 300 386 V1.6.1, EN55024: 2010KN24: 2011, TCVN 7317: 2003
Emission Standards47 CFR Part 15, CISPR22: Edition 6.0: 2008, CNS13438: 2006, EN 300 386 V1.6.1, EN 55022:2010, EN61000-3-2: 2006
Weight0.44 pounds
Support for Echo ReductionYes
Generation of Comfort NoiseYes
Capability for DTMF DetectionYes
Detection of Voice ActivityYes
Modem Recognition and Direct Pass-ThroughYes
Support for RFC 4733 Digit SignalsYes
Protection Against Acoustic ShockYes
Alarm-Triggered SNMP NotificationsYes
Type of PortsAnalog
Presence of JumpersNo
Support for 2900 and 3900 Series ISRsNo
Online Insertion and Removal (OIR)Yes
Compatibility with Multiple Voice ApplicationsYes
Support for Real-Time ProtocolsYes
Maximum Echo Cancellation Depth128 milliseconds

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