Description
Features and Benefits
The NM-CEM-4TE1 Cisco 4 Ports Expansion module is a network module designed to provide additional connectivity options for Cisco 2800, 3800, 2900, and 3900 series routers. Here are the key features and benefits of this expansion module:
- Four T1/E1 ports: The expansion module provides four T1/E1 ports that support both fractional and full T1/E1 speeds. This provides flexible connectivity options for a wide range of devices and applications.
- High-speed data transfer: The expansion module supports High-Level Data Link Control (HDLC), Point-to-Point Protocol (PPP), and Frame Relay protocols, allowing for high-speed data transfer between connected devices. This ensures efficient data transmission and reduces the likelihood of network congestion.
- Integrated CSU/DSU: The T1/E1 ports on the expansion module are equipped with integrated Channel Service Unit/Data Service Unit (CSU/DSU) functionality, which provides reliable connectivity over leased lines and other types of WAN connections.
- Compatibility: The NM-CEM-4TE1 expansion module is compatible with Cisco 2800, 3800, 2900, and 3900 series routers, providing seamless integration with existing network infrastructure.
- Plug-and-play functionality: The expansion module has plug-and-play functionality that eliminates the need for complex software installation and configuration. The module can be easily installed and configured using the Cisco IOS command line interface (CLI).
- LED indicators: The expansion module has LED indicators that provide visual status information on the module’s activity and connectivity. This allows for easy monitoring and troubleshooting of the module’s performance.
Configuring and Managing
Configuring and managing the NM-CEM-4TE1 Cisco 4 Ports Expansion module involves the following steps:
- Install the expansion module: Install the expansion module in an available network module slot on the Cisco router.
- Configure the module: Use the Cisco IOS command line interface (CLI) to configure the module’s settings. This involves setting up the T1/E1 ports, configuring the CSU/DSU settings, and setting up the appropriate protocols for data transfer.
- Verify the configuration: Verify the module’s configuration by checking its status and activity using the Cisco IOS CLI or the LED indicators on the module. This ensures that the module is properly configured and functioning as expected.
- Monitor the module’s performance: Monitor the module’s performance using the Cisco IOS CLI or a network management tool to detect any issues and troubleshoot them as needed.
- Upgrade the module’s firmware: Upgrade the module’s firmware to ensure it has the latest security patches and bug fixes. This can be done using the Cisco IOS CLI or a network management tool.
- Backup and restore the module’s configuration: Backup the module’s configuration regularly to ensure that you can restore it if necessary. This can be done using the Cisco IOS CLI or a network management tool.
Performance and Reliability
The NM-CEM-4TE1 Cisco 4 Ports Expansion module is designed to provide reliable and high-performance T1/E1 connectivity for Cisco routers. Here are some factors that contribute to the performance and reliability of this expansion module:
- Integrated CSU/DSU: The module is equipped with an integrated Channel Service Unit/Data Service Unit (CSU/DSU) that provides reliable connectivity over leased lines and other types of WAN connections. This ensures that data transmission is consistent and stable.
- High-speed data transfer: The module supports High-Level Data Link Control (HDLC), Point-to-Point Protocol (PPP), and Frame Relay protocols, allowing for high-speed data transfer between connected devices. This ensures efficient data transmission and reduces the likelihood of network congestion.
- Compatibility: The NM-CEM-4TE1 expansion module is compatible with Cisco 2800, 3800, 2900, and 3900 series routers, providing seamless integration with existing network infrastructure.
- Redundancy: The module supports redundancy features such as hot-swappable T1/E1 interfaces and automatic failover between redundant links. This ensures that network connectivity is maintained even in the event of a hardware failure.
- Monitoring and management: The module can be monitored and managed using the Cisco IOS command line interface (CLI) or a network management tool. This allows for real-time monitoring of the module’s performance and the ability to quickly identify and troubleshoot any issues.
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
Miscellaneous
- Compatibility-
- Cisco 2610XM-2651XM
- Cisco 2691
- Cisco 2811, 2821, 2851
- Cisco 3660
- Cisco 3725 , 3745
- Cisco 3825, 3845
