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Power is supplied to the Storage/Control I/O Module via the midplane from the combined
controller card. The hard drive LED signal is brought to the system controller board via the
midplane and brought out to the front panel to show hard drive activity. It is located on the
combined controller in the front of the VCO. Refer to Figure 3.
SCSI terminations are provided as an option to be populated on the Storage/Control I/O
Module depending on the system configuration. They are currently not being used.
The connectors mounted on the front panel:
4 serial ports
SCSI port
Ethernet
Printer
The connectors mounted on the board:
SCSI
MODEM
MODEM power
The LEDs mounted on the board:
ENET
SCSI
DB-25
50-Pin mini-SCSI connector
DB-15
36-Pin Centronics
DIN 64
20-Pin IDC connector
5-Pin header
If illuminated, shows that power is available to
the ethernet
If illuminated, shows that there is SCSI
termination power
Description
Storage/Control I/O Module 1-3
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Troubleshooting
