Comtech EF Data CIM-300L - Manual (Page 143)

CiM-300L IP Enabled Satellite Modem Rev. 1
System Checkout/Fault Isolation CD/CIM300L.IOM
117
7.1.3 F
AULT
I
SOLATION
The modem’s design allows a technician to repair a faulty modem on location.
The fault isolation procedure lists the following categories of faults or alarms.
! Modulator
! Demodulator
! Common Equipment
Note: Each fault or alarm category includes possible problems and the appropriate action
required to repair the modem.
If any of the troubleshooting procedures mentioned earlier in this chapter do not isolate
the problem, and Comtech EF Data Customer Support assistance is necessary, have the
following information available for the representative:
! Modem configuration. Modem configuration includes the modulator, demodulator,
interface, or local AUPC sections.
! Faults (active or stored).
7.1.4 S
YSTEM
F
AULTS
/A
LARMS
System faults are reported in the “Faults/Alarms” menu, and stored faults are reported in
the “Stored Flts/Alms” menu.
7.1.5 F
AULTS
/A
LARMS
D
ISPLAY
General fault, status, and alarm information are indicated by 10 LEDs located on the
modem’s front panel.
! A fault (red LED) indicates a fault that currently exists in the modem.
! When a fault occurs, it is stored in the stored fault memory, and indicated by the single
yellow LED.
! The LED is turned off when the fault clears. If the fault clears, the occurrence is also
stored.
A total of 10 occurrences of any fault can be stored. Each fault or stored fault indicated
by a front panel LED could be one of many faults. To determine which fault has
occurred, use the Fault or Stored Fault front panel menu.