Installation Test - Samsung Smart MBS RRH-P4 Installation Manual

2600-00CTEIGAA Ver.
CHAPTER 2. Installation of RRH-P4

2.9 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-P4 power in the DU cabinet is connected).
Make sure that the DC resistance between the -48 V/RTN is over tens of kilo ohm
(kΩ).
2) Make sure that the DC resistance between the RTN of Terminal block-
frame is no greater than 10 Ω. The ground cable must be installed at DU cabinet and
RRH-P4
3) Execute the 'on' of the breaker (RRH-P4 power in the DU cabinet is connected). Make
sure that the voltage between the RTN of terminal block- ,
4) Execute the 'on' of the breaker (RRH-P4 power in the DU cabinet is connected).
Verify that the LED (Red or green) in the RRH-P4 optic window is lit.
5) Turn off the breaker in the DU cabinet which is connected to the power of the RRH-P4.
6) Fasten the cover fixing screw (T20) using a Torque 0.87 lbf.ft (12.0 kgf.cm). Close the
power window cover and the optic window cover.
Caution When Opening and Closing Power Window Cover
Make sure to turn off the breaker connected to the RRH-P4 power before opening
or closing the power window cover of the RRH-P4.
If you open or close the power window cover when the breaker is turned on, it
may cause damage to the system, or cause an electric short circuit resulting in
severe injury.
Caution on Rain-proof Gasket Damage When Installing Window Cover
Be careful so as not to let the rain-proof gasket get damaged (broken or
incorrectly positioned). Check whether the rain-proof gasket is damaged before
closing the power window cover and the optic window cover.
If the rain-proof gasket is damaged, replace the system (RRH-P4) with a new
one.
2-68
4.0
and RRH-P4
is over -40 V DC.
© SAMSUNG Electronics Co., Ltd.