Commissioning; Pre-Commissioning Tasks; Led Indicators - Comba Telecom RA-7E00 User Manual

4 COMMISSIONING

4.1

PRE-COMMISSIONING TASKS

After equipment installation, perform the following steps before equipment powering and commissioning,
check that the expected voltage, current, and power levels do not violate any ratings. Double check all
connections including ground before applying power. Do not manipulate circuits or make changes when
power is applied:

Visually inspect the power connection within the equipment. Ensure that the power cable is correctly
and securely connected, including grounding wire, RF cable and optical cable.

Check grounding connection and verify that the ground resistance is less than 5Ω.

Connect the equipment to the PC installed with OMT software.

With the MU switched on, RU installed and all cablings connected, apply power to the RU by switching
on the PSU switch on the integrated PSU.

Monitor the initialization of the MU though the LEDs on the front panel of MCU unit, while for RU, it is
through the LEDs on the MCU unit integrated. Refer to detailed LEDs information in the next section.
4.2

LED INDICATORS

Diagnostic LEDs are located on the MU and RU panel; each indicates the status of a particular function:
Identifier Color
PWR Green
RUN Green
ALM Red
Identifier Color
PWR Green
RUN Green
ALM Red
OP Green
ENU STATUS : 1-0-0
USER MANUAL FOR RA-7E00
Table 8: MU LED Indicators
Indication
It stands in green when power on.
Operation indicator – power is supplied to the MU. Flashes once every
second to indicate normal system operation.
Alarm indicator. ON = alarm; OFF = no alarm
Table 9: RU LED Indicators
Indication
It stands in green when power on.
Operation indicator. Flashes at equal intervals to indicate normal system
operation.
Alarm indicator. ON = alarm; OFF = no alarm
Optical receiver indicator, lights on when optical power received normal,
lights off when received optical power is less than -10dBm.
End of Section
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