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Checking the eRRU Hardware Installation
b
Checking the Cable Installation
NO.
Check Item
1
The PGND cable is green and yellow. The NEG (-) cable is blue and the RTN (+) cable is black.
2
None of power cables and PGND cables can be short-circuited or reversely connected.
3
Bind PGND cables, power cables, and signal cables separately.
4
The bare wires and lug handles at the wiring terminals are tightly wrapped up with PVC insulation tape.
5
The protection grounding of the equipment room must share one set of grounding body with the surge
protection grounding device.
6
There are no connectors or joints on each power cable or PGND cable.
7
The connectors of the signal cables are securely connected.
8
The bending radius of the cables must meet the requirement to prevent power loss.
9
Check the shield layer of the power cable and ensure that it is properly connected.
10
Waterproof the connected or spare type N connectors.
Checking the Power-on State of an eRRU
Start
a
Do cables of the
RRU link normal?
Yes
Power on the RRU
b
Are the LEDs
on the RRU
normal？
Yes
End
CAUTION
After the RRU is installed, power it on within 24 hours. If you power off the RRU for maintenance, you must
restore power to it within 24 hours.
No
Rectify faults
Power off the RRU and
rectify faults
No
11
14
a
The eRRU3232 (DC) and
eRRU3253 (DC) supports:
-36V DC ～ -57V DC power
supply.
The eRRU3251 (DC) and
eRRU3255 (DC) supports:
-36V DC ～ -60V DC power
supply.
The AC eRRU supports:
100V AC ～ 240V AC power
supply.
b
For the RRU module, the RUN
indicator is on for 1s and off for
1s and the ALM indicator is
steady off.
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