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SLM-7650 Satellite Modem
Maintenance
5.2.4
Fault/Alarm Display and Description
General fault, status, and alarm information is indicated by 8 LEDs located on the
modem's front panel.
The TX and RX fault LEDs are dual purpose. A lit red LED indicates a fault currently
exists in the modem. A lit yellow fault LED indicates an alarm currently exists in the
modem.
The Fault LED will turn OFF when the fault and alarm clears.
All faults and alarms are logged in the stored fault memory and are indicated by the
yellow Stored Fault LED.
A total of 10 fault or alarm status changes will be stored in the Stored Faults menu. Each
fault/alarm or stored fault/alarm indicated by a front panel LED could be one of many
faults. Use the Fault or Stored Fault front panel menu to determine which fault or alarm
has occurred.
Alarms will not switch the modem offline in a redundant system. Alarms are shown in
the Fault or Stored Fault front panel menu by a reversed-contrast "+" that appears at the
display panel (white on black).
5–8
Revision 4
MN/SLM7650.IOM
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