Cisco NM-CEM-4TE1 4 Port Networking Expansion Module
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NM-CEM-4TE1 Cisco 4 Ports Network Module Factory Sealed New

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Part Number#: NM-CEM-4TE1
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Short Description:
NM-CEM-4TE1 4 Ports Circuit Emulation Over IP T1/E1 Network Module | Made by Cisco | New Factory Sealed | Lead Time Required
Product Condition:
New Retail Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

Features and Benefits

The NM-CEM-4TE1 Cisco 4 Ports Expansion module is an interface module designed to be used with Cisco routers. It provides four additional ports that can be used for a variety of purposes. Here are some of the features and benefits of this expansion module:


  • Four T1 or E1 interfaces: This module provides four T1 or E1 interfaces, which can be used for voice, data, or video traffic.
  • Supports multiple protocols: The module supports multiple protocols, including PPP, HDLC, and Frame Relay.
  • High-speed connectivity: With a maximum data transfer rate of up to 2.048 Mbps, this module provides high-speed connectivity for your network.
  • Compact size: The module is compact in size, making it easy to install and use.
  • Hot-swappable: The module is hot-swappable, which means it can be added or removed from the router without shutting down the system.


  • Scalability: The NM-CEM-4TE1 expansion module provides additional ports, which can help to increase the scalability of your network. You can add more modules as your network grows.
  • Flexibility: The module provides multiple interfaces, which can be used for a variety of purposes. This makes it a flexible solution for your network.
  • High-speed connectivity: With a maximum data transfer rate of up to 2.048 Mbps, this module provides high-speed connectivity for your network, which can improve the performance of your applications.
  • Cost-effective: The module is a cost-effective solution for expanding your network, as it provides multiple ports in a compact form factor.
  • Easy to install: The module is easy to install, thanks to its compact size and hot-swappable design. This can save time and effort when adding new modules to your network.

Deployment Scenarios

The NM-CEM-4TE1 Cisco 4 Ports Expansion module is a versatile interface module that can be used in a variety of deployment scenarios. Here are some examples:

  • Voice and Data Integration: The NM-CEM-4TE1 module can be used to integrate voice and data traffic in a network. It can be used to provide T1 or E1 connections for voice circuits, while also supporting data traffic over the same circuits. This can be useful in scenarios where both voice and data are required, such as in call centers or small offices.
  • WAN Connectivity: The module can be used to provide WAN connectivity for a network. It supports multiple WAN protocols, such as PPP and Frame Relay, and can be used to connect to service provider networks or other WAN links.
  • High-Speed Data Transfer: The NM-CEM-4TE1 module can be used to provide high-speed data transfer for a network. It supports data transfer rates of up to 2.048 Mbps, which can be useful in scenarios where large amounts of data need to be transferred quickly, such as in multimedia applications or large file transfers.
  • Redundancy and Backup: The module can be used to provide redundancy and backup for a network. It can be used to provide backup connections in case of a failure of the primary connection, or to provide a redundant connection to ensure high availability of critical applications.
  • Extension of LAN: The NM-CEM-4TE1 module can be used to extend the LAN of a network. It can be used to connect remote sites or branch offices to the main network, providing a cost-effective solution for network expansion.

High Availability and Redundancy Options

The NM-CEM-4TE1 Cisco 4 Ports Expansion module supports several high availability and redundancy options that help to ensure network uptime and minimize the risk of downtime. Here are some of the options:

  • Link Aggregation Control Protocol (LACP): LACP is a protocol that allows multiple physical links to be combined into a single logical link. This can provide increased bandwidth and redundancy. The NM-CEM-4TE1 module supports LACP, allowing you to combine multiple T1 or E1 links into a single logical link.
  • Redundant Power Supply: The Cisco routers that support the NM-CEM-4TE1 module also support redundant power supplies. This means that if one power supply fails, the other can take over, ensuring uninterrupted power to the router and the module.
  • Hot Standby Router Protocol (HSRP): HSRP is a protocol that provides redundancy for IP networks. It allows two or more routers to share a virtual IP address, which can be used as the default gateway for hosts on the network. If one router fails, the other can take over, ensuring continued network connectivity. The NM-CEM-4TE1 module supports HSRP, providing redundancy for T1 or E1 links.
  • Dual Router Configurations: The NM-CEM-4TE1 module can be deployed in dual router configurations, where two routers are connected to each other and share the workload. This provides redundancy in case of a failure of one router, and can help to ensure network uptime.
  • Quality of Service (QoS): The NM-CEM-4TE1 module supports QoS, which allows you to prioritize traffic on the network. This can be useful in scenarios where certain types of traffic, such as voice or video, need to be given priority over other types of traffic. QoS can help to ensure that critical applications continue to function even in the event of network congestion.

General Information

  • Manufacturer: Cisco Systems, Inc
  • Manufacturer Part Number: NM-CEM-4TE1
  • Brand Name: Cisco
  • Product Name: Circuit Emulation Over IP T1/E1 Network Module
  • Product Type: Network Module
  • Device Type: Expansion module

Technical Information

  • Application/Usage: Data Networking

Interfaces / Ports:

  • Interfaces/Ports: 4 x T1/E1
  • Interfaces/Ports Details: 4 x T1/E1

Media & Performance:

  • Data Transfer Rate: 1.54 Mbps T1
  • Data Transfer Rate: 2.05 Mbps E1

Management & Protocols

  • Management:
  • T1/E1 line diagnostic loopbacks (local line, local payload, and network payload)
  • IP quality of Service (QoS) using differentiated services code point (DSCP) or type of service (ToS) and IP Precedence


  • Compatibility-
  • Cisco 2610XM-2651XM
  • Cisco 2691
  • Cisco 2811, 2821, 2851
  • Cisco 3660
  • Cisco 3725 , 3745
  • Cisco 3825, 3845

For all your expansion module needs, we've got you covered with high-performance devices that increase functional capability and ease business processes.

You can talk to any of our staff and consult on what would be the best way forward when getting an expansion module to complement and enhance existing infrastructure and meet your immediate and future needs.

We have hardware level 12 with firmware 3.0 or higher modules that allow for the installation of up to 14 expansion modules below the base module for resilient performance. Expansion modules connect to the base module using USB Type-A connectors. That's not all, we have hardware level 11 and lower that supports up to 9 expansion modules.

With an expansion module, you get additional cartridge storage as well as tape drive capacity. We have expansion modules that contain up to two drives and two power supplies. You can choose to have the expansion module with tape drives and power supply installed so that it makes setup easier from your end. Expansion modules will need a power supply only if you install a tape drive in them. A single power supply can actually power two drives. However, you can add a second power supply for redundancy purposes. Without a tape drive, the expansion module is powered via the USB cable connected to the base module.

Expansion modules require 2U rack space and will be shipped with the necessary mounting hardware used to secure them to the rack.

The top features of the expansion modules we've listed include:

  • High-resolution LCD screens of up to 5" with backlight for a vibrant visual experience and ease of use. The expansion modules have programmable line keys ensuring that the interface is intuitive and interactive.
  • Straightforward setup to facilitate easy installation.
  • Availability of a wide range of custom configurations
  • Advanced call handling and contact management capabilities to help increase productivity.
  • XML browser functionality
  • Compatibility across systems which helps to leverage existing IT infrastructure investment. All the expansion modules we've made available will help to enhance your existing desktop solutions.
  • Seamless fusion with planar and fibre technology
  • Compatibility with phone models such as SIP-T27P and SIP-T29G helps to expand functionality.
  • Availability of color icons that enhance the visual experience for users. There are color-coded independent actionable control keys that facilitate fast switching between pages.
  • Ability to link together a maximum of six phone systems and up to two expansion modules from a single host phone.
  • Support for up to 3 modules on a daisy-chain
  • Reduced excess loss and PDL
  • Support for advanced call functions including call forwarding, call transfers, multi-person conferencing, call pickup, LDAP, speed dial, and BFL list.
  • Shipped with a stand that has two adjustable angles

You can find almost every module option in our catalogue, we have modules with different numbers of ports, from 1-port options to 50- and 90-port options, you can also check out our 20 Gigabit, 48 Gigabit, and 100 Gigabit expansion modules. Browse through our categories to find the best option for your needs.

All expansion modules make for ideal solutions for administrative assistants, receptionists, and contact center employees due to the ability to easily manage large call volumes and monitor a large number of contacts.

Here, you can check more available conditions of your desired product NM-CEM-4TE1 at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


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ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

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Individual product warranty mentioned on each item product description page/detail page.

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