Using The Bantam Jacks For Test Port Functionality; Monitoring Mode For The T1, E1 And T3 Dfcs; Drop And Insert Mode For The Ct3 Dfc - Cisco AS5400 Installation Manual

Chapter 6 Troubleshooting

Using the Bantam Jacks for Test Port Functionality

Test port functionality is supported by Cisco IOS Release 12.1(2)XD and later releases.

Monitoring Mode for the T1, E1 and T3 DFCs

The monitor mode is available on the T1, E1 and T3 dial feature cards.
If a T1 controller does not come up, or there is a large number of errors associated with a particular
controller, you might be able to determine whether the problem is in the DFC or in an external T1 line
by using the test port. The test port is a set of bantam jack connectors located on the front panel of the
T1, E1, and T3 DFCs. (See
Figure 6-7
In monitor mode, you can monitor only the ingress side of the T1 line without disrupting that line.
The bantam jack connectors located on the front panel of the DFCs allow the connection of an external
test device (for example, a FIREBERD test device) to monitor the individual T1 circuit in monitor mode.
Use software commands to select a T1 line. For information on software commands, see the
Cisco AS5350 and Cisco AS5400 Universal Gateway Software Configuration Guide for details.
Passive monitoring equipment is used to listen on the TX MON and RX MON jacks during regular
operation to detect T1 errors.
Connecting test equipment to the following bantam jack connectors provides various functions:
•
•

Drop and Insert Mode for the CT3 DFC

Drop and Insert mode is available on the T3 DFC.
The bantam jack connectors located on the front panel of the T3 DFC allow the connection of an external
test device (for example, a FIREBERD test device) to test any of the 28 individual T1 circuits in
drop-insert mode.
In drop-insert mode, the T1 line is dropped out of service. To prevent accidental use of the push button
in drop-insert mode, use the test trunk drop-insert privileged EXEC command to disable the
drop-insert mode on the specified T3 controller.
78-13311-01
Figure
Bantam Ports
Bantam ports
T1 or E1 ports
0
1
TX MON can monitor signals coming out of the test port without interrupting normal data
transmission.
RX MON can monitor signals going in to the test port without interrupting normal data transmission.
6-7.)
2 PRI
Rx
Tx
ACT
OK
Cisco AS5350 and Cisco AS5400 Universal Gateway Card Installation Guide

Using the Bantam Jacks for Test Port Functionality

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