Diagnostic Tools

This appendix describes the tools available to assist you in troubleshooting a VCO/4K system and (to a limited extent) peripheral devices.

Safety Precautions

Warning Cisco Systems, Inc. urges installers to observe the following safety precautions:

Never install telecommunication circuits during a lightning storm.
Never install telecommunication connections in wet locations unless the connector is specifically designed for wet locations.
Never touch uninsulated telecommunication wires or terminals unless the circuit is disconnected at the network interface.

Caution Observe the following:

Use caution when installing or modifying telecommunication circuits.
Avoid contact with rack power buses or connectors during the installation process to minimize the risk of injury from hazardous voltages.
Arrange for 1 male for each 75 pounds and/or 1 female for each 40 pounds of lifting.
Use an ESD wrist strap connected to the system for grounding to minimize the risk of injury when removing or replacing a system component. Connect the ESD wrist strap to the receptacle labeled CONNECT ESD WRIST STRAP HERE.

For ANSI and CCITT SS7 versions 5.0 and higher, EBS logging is enabled/disabled with the following procedure:

Step 1 To turn on EBS logging, use the ebslog on command.

Step 2 To turn EBS logging off, use the ebslog off command.

The resulting log file will be called ebs and will reside in the directory $XNV/log.

Note The file size of this log file increases very quickly. Do not turn it on and leave it running for a long period of time.