Samsung RRH-2WB, Installation Manual

Page: 75 / 141

Mobile WiMAX/TD-LTE RRH-2WB Installation Manual/Ver.2.0
© SAMSUNG Electronics Co., Ltd. 3-13
[RRH-2WB Power Cable Side]
C
D
Circuit Breaker Installation
Circuit breaker of slow blow type should be installed to the power line which is
connected from the rectifier (or power distributor) to the system in order to supply
the power stably. The capacity of -48 VDC circuit breaker is 20 A.
Power cable
In case of using AWG8 (6 mm
2
× 2C) power cable, it is applicable up to 70 m
(299.66 ft). When the distance is 70 m (299.66 ft), followings should be
considered.
- Do not rapid ON/OFF (within one second): The voltage loss value caused by the
cable resistance loss is 3 V, and the RRH-2WB could be damaged by the
counter electromotive force caused by the cable inductance.
- The battery’s life could be shorten: The RRH-2WB could be off in spite the
battery remains. (When the battery capacity is designed within one hour)
- Do not use the power cables linked: Using the power cables linked each other,
the loss will be increased.
Figure 3.7 Power Cable Connector
Table 3.3 Amphenol CJE-AL06M25U15-2S Power Connector Pin Map
Pin No. Description Power Cable Color (CV 6 mm
2
× 2C) Heat Shrink Tube Color
C -48 V Black
Blue
D Return White Red
Power Cable Color
In the table above, the cable color is based on the inner wire of the CV 6 mm
2
×
2 core cable. The color of the inner wires may vary depending on the type and
manufacturer of the cable used.