Manual
1-, 2-, and 4-Port T1/E1 HWICs and 8-Port T1/E1 Network Module
Contents
2
Cisco IOS Release 12.4(11)XW5, and 12.4(20)T
Contents
• Restrictions for T1/E1 HWICs and Network Module, page 2
• Information About T1/E1 HWICs and Network Module, page 3
• How to Configure T1/E1 HWICs and Network Module, page 4
• Configuration Examples for T1/E1 HWICs and Network Module, page 11
• Additional References, page 17
• Command Reference, page 18
• Feature Information for T1/E1 HWICs and Network Modules, page 21
Restrictions for T1/E1 HWICs and Network Module
• The Cisco 2811 does not support the HWIC-4T1/E1 module.
• Voice features are not supported on the HWICs or the network module.
• Wetting current is not supported on the HWICs or the network module.
• V54 loop up/down code recognition is not supported on the HWICs or the network module.
• The 1-port and 2-port HWICs support up to 32 channels per port (up to 64 channels total on the
2-port HWIC).
• The 4-port clear channel HWIC supports 1 channel per port, or 4 channels total for the HWIC.
• The 8-port network module is supported only on Cisco 3800 series routers (the Cisco 3825 and
Cisco 3845 routers).
• The 8-port network module supports a maximum of 128 channels.
• Bit Error Rate Tester (BERT) runs on the entire controller and not on specific channel groups.
Because of this, only a limited number of patterns are supported. See the “Configuring the T1/E1
HWICs or Network Module” section on page 6 for more details.