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2.8 Installation Test
If the installation of the system is complete, progress the installation test to check the status
of the system. The purpose of this test is to remove problems, which may generate after the
service starts, in advance for stable operation of the system. If there is any problem, restore
the system and write out the failure table.
The installation test should be progressed in the order of power section test and function test.
Power Section Test
The power section test is progressed as follows:
1) Execute the 'off' of the breaker(RRH-C2A power in the DU cabinet is connected).
Make sure that the DC resistance between the -48V/RTN is over tens of kilo ohm
(kΩ ).
2) Make sure that the DC resistance between the RTN of Terminal block-① and RRH-
C2A frame is no greater than 10 Ω . The ground cable must be installed at DU cabinet
and RRH-C2A
3) Execute the 'on' of the breaker(RRH-C2A power in the DU cabinet is connected).
Make sure that the voltage between the RTN of terminal block-①, ② is over -
38VDC.
4) Execute the 'on' of the breaker(RRH-C2A power in the DU cabinet is connected).
Verify that the LED(Red or green) in the RRH-C2A installation window is lit.
5) Fasten the cover fixing screw (T20) using a Torque 12.0 kgf.cm. Close the power
window cover and the optic window cover.
© SAMSUNG Electronics Co., Ltd.
Smart MBS RRH-P4 Installation Manual/Ver.2.0
2-41
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