Document ID: 7245
Updated: Sep 14, 2005
Contents
Introduction
This document helps you to understand channelized E1/PRI network modules.
Prerequisites
Requirements
There are no specific requirements for this document.
Components Used
This document is not restricted to specific software and hardware versions.
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.
Conventions
For more information on document conventions, refer to the Cisco Technical Tips Conventions.
Background Information
The channelized E1/ISDN Primary Rate Interface (PRI) modules are available with one or two DB-25 E1 ports with balanced or unbalanced interfaces. The channelized E1/ISDN PRI modules can receive and transmit data bidirectionally at the E1 rate of 2.048 Mbps and provide up to 30 virtual channels per E1 port. The Network Modules also include an RJ-45 Fast Ethernet port for LAN connectivity.
Product Numbers
| Product Number | Description |
|---|---|
| NM-1FE1CE1B | One-port 10/100 Base-TX Ethernet with one-port E1 PRI/Channelized Balanced mode (120 ohm) |
| NM-1FE1CE1U | One-port 10/100 Base-TX Ethernet with one-port E1 PRI/Channelized Unbalanced mode (75 ohm) |
| NM-1FE2CE1B | One-port 10/100 Base-TX Ethernet with two-port E1 PRI/Channelized Balanced mode (120 ohm) |
| NM-1FE2CE1U | One-port 10/100 Base-TX Ethernet with two-port E1 PRI/Channelized Unbalanced mode (75 ohm) |
Features
| Feature | Description |
|---|---|
| Fast Ethernet Connector | RJ-45 100 BaseT interface (no MII port, no fiber option). |
| E1 Connector | DB 15 connector. |
| E1 Mode | These network modules can be field configured to balanced (120 ohm) or unbalanced (75 ohm) operation by changing jumpers on the network module. |
| Fast Ethernet Speed | 10 or 100 Mbps speed, auto-sensing. |
| Fast Ethernet Duplex |
Full- or half-duplex, auto-negotiating (at 10 Mbps and 100
Mbps).
|
| ISL | Supported in hardware, requires Cisco "IOS® Plus" Feature set. |
| Fast Etherchannel | Not supported. |
| E1 Support |
|
Platform Support
| Product Name | Cisco 2600, 2600XM | Cisco 3620, 3640 | Cisco 3631 | Cisco 3660 | Cisco 2691, 3725, 3745 |
|---|---|---|---|---|---|
| NM-1FE1CE1B | not supported | Cisco IOS versions 11.3(4)T1, 12.0(1)T, 12.0XK, 12.1, 12.1T, 12.2, 12.2T | not supported | Cisco IOS versions 12.0(7)XK, 12.1T, 12.2, 12.2T | not supported |
| NM-1FE1CE1U | not supported | Cisco IOS versions 11.3(4)T1, 12.0(1)T, 12.0XK, 12.1, 12.1T, 12.2, 12.2T | not supported | Cisco IOS versions 12.0(7)XK, 12.1T, 12.2, 12.2T | not supported |
| NM-1FE2CE1B | not supported | Cisco IOS versions 11.3(4)T1, 12.0(1)T, 12.0XK, 12.1, 12.1T, 12.2, 12.2T | not supported | Cisco IOS versions 12.0(7)XK, 12.1T, 12.2, 12.2T | not supported |
| NM-1FE2CE1U | not supported | Cisco IOS versions 11.3(4)T1, 12.0(1)T, 12.0XK, 12.1, 12.1T, 12.2, 12.2T | not supported | Cisco IOS versions 12.0(7)XK, 12.1T, 12.2, 12.2T | not supported |
There is no restriction on the number of these modules that can operate in a chassis.
Note: The Cisco IOS software releases provided are typically the minimum version required to support the platform, module, or feature in question. Use the Software Advisor (registered customers only) in order to choose appropriate software for your network device: match software features to Cisco IOS and CatOS releases, compare IOS releases, or find out which software releases support your hardware. The Software Advisor and other tools are available in TAC Tools and Utilities.
Configuration
Each interface on the Cisco 3600 series is configured as a slot/unit number. On the 1- or 2-Port ISDN PRI/Channelized E1 Network Module, the Fast Ethernet interface is addressed as interface fastethernet <slot>/<port> and the E1 interfaces are addressed as controller <slot>/<unit>. Concurrent ISDN BRI and PRI module support requires Cisco IOS 11.3(3)T.
Refer to Configuring Channelized E1 and Channelized T1 for configuration assistance.
Configure the interface as you would normally configure a Channelized E1/PRI interface on any other router.
Related Information
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Refer to Cisco Technical Tips Conventions for information on conventions used in this document.