Terrasat IBUC 3, Operation Manual

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Common Errors
|
4-7
Engineered to Endure
To re-enable transmission, remove the Pin N connection to Pin F. Transmission will
now resume. For more information about the M&C interface connector, see System
Cabling Requirements on page 3 - 10 .
Alarm Input
When the unit is operating as part of the redundant IBUC system, the redundant
configuration is sensed automatically. In redundant systems, Pin N functions as an
alarm input where the alarm output of the A: side IBUC is connected to the alarm
input of the B: side IBUC and vice versa.
For more information about the M&C interface connector, see System Cabling
Requirements on page 3 - 10 .
Common Errors
LED is Red
A red LED indicates only that a fault (or alarm) has occurred and does not necessarily
indicate that transmission has stopped. A flashing red light indicates a minor alarm and
a solid red light indicates a major alarm. You can communicate with the IBUC to
determine what is causing the fault, and then clear the fault condition.
1. Establish a connection with the IBUC
3
or IBUC
3
G
by using the steps provided
in Appendix C, Embedded Web Pages .
2. View the Alarm Status Tab (shown on page C-6 ) to determine the current alarm.
You can also check the Sensor Tab (shown on page C-9 ) to determine which
reading caused the alarm, and then compare the readings with the threshold levels.
If necessary, adjust the threshold level(s).
When the fault is cleared, the LED should be flashing green.
No Power to the IBUC
3
or IBUC
3
G
If the Power LED is off or not turning on at all, the IBUC is probably not receiving
power.
Restore power to the IBUC by
• If the IBUC is powered by the modem, verifying that the modem is working
properly.
• Checking that the modem is receiving power (that is, the modem power cord is
plugged in) and that DC power to the IBUC is enabled.
• Checking that all cable connections are solid.