Troubleshooting; Leds Not Illuminated; Troubleshooting Reference Materials; Related Documents - Cisco VCO/4K Mechanical Assemblies

6.0 TROUBLESHOOTING

LEDs Not Illuminated

If either of the LEDs on the Storage/Control I/O Module is not illuminated, corrective action
should be taken. These LEDs are fused powered sources. The fuses are on the Combined
Controller and are not field replaceable. Call Cisco Systems for technical support.
NOTE: The ENET PWR LED should be illuminated only when Ethernet is being
used. If the ENET PWR LED is not illuminated and ethernet is being used, contact
Cisco Systems Technical Support.

Troubleshooting Reference Materials

The Cisco VCO/4K System Maintenance Manual describes corrective maintenance procedures
for host communications links. In addition to this manual, refer to the Cisco VCO/4K Host
Communications Guide and the Cisco VCO/4K Standard Programming Reference and Cisco
VCO/4K Extended Programming Reference for details relating to communication protocols and
command/report formats. The Cisco VCO/4K System Messages describe the network messages
associated with problems detected with the host communications links.
If you are employing the optional Ethernet Communications Package, refer to the Cisco
VCO/4K Ethernet Guide for maintenance procedures.
Additional reference materials include the OEM manuals provided with any other peripheral
devices connected to the Storage/Control I/O Module. This includes the printer and the serial
terminal.

7.0 RELATED DOCUMENTS

For additional information regarding the operation, application, installation and maintenance
of the CPU refer to the following system publications:
• Cisco VCO/4K Product Overview
• Cisco VCO/4K Hardware Planning Guide
• Cisco VCO/4K Installation Manual
• Cisco VCO/4K System Maintenance Manual
• Cisco VCO/4K Mechanical Assemblies: System Enclosure
• Cisco VCO/4K Host Communications Guide
• Cisco VCO/4K Standard Programming Reference
• Cisco VCO/4K Extended Programming Reference
• Cisco VCO/4K System Administrator's Guide
• Cisco VCO/4K Ethernet Guide
TROUBLESHOOTING
Storage/Control I/O Module 1-19