USER MANUAL FOR RA-7100
RA-7100 II2 QI
Copyright - refer to title page
Page 36
ENU Status : 1-0-0
4.2
LED INDICATORS
4.2.1 MU LED INDICATORS
Diagnostic LEDs are located on the MU; each indicates the status of a particular function:
Identifier
Color
Indication
RUN Green
Operation indicator – power is supplied to the MU. Flashes once every
second to indicate normal system operation.
ALM
Red
Alarm indicator. ON = alarm; OFF = no alarm
MOD Red
For equipment with wireless modem, it stands for both MODEM
initialization indicator
3
and FSK communication. Flashes once every two
seconds to indicate normal communication between MU and RU. For
equipment with LAN port, this LED only for FSK communication.
OP1-OP4 Green
When the green indicators are on, the relative optical channel is in normal
reception.
Table 12: MU LED Indicators
4.2.2 RU LED INDICATORS
LED Diagnostic indicators are located on the MCU integrated in the RU; each indicates the status of a
particular function.
Identifier
Colour
Indication
LED 5
Green
Operation indicator – power is supplied to the RU. Flashes once every
second to indicate normal system operation.
LED 4
Red
Alarm indicator. ON = alarm; OFF = no alarm
LED 3
Red
Diagnostic LED for FSK communication. Flashes once every two seconds
to indicate normal communication between MU and RU.
Table 13: RU LED Indicators
The LEDs LED5, LED4, LED3 will flash simultaneously five times during system self-checking after
equipment power-up. Then LED5 flashes every second to indicate system commissioning can be
proceeded with.
3
Modem initialization indicator on MU front panel: Go off after initialization success. If the indicator is continuous
on then the initiating fails.
* Modem status indicator on MODEM, flashes during initiating, and go off after initialization success. If the
indicator is continuous on then the initiating fails.
