Huawei RRU3942, Hardware Description

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Table 3-6 Labels on and recommended connections for optical fibers of a fiber optic cable
between RRUs
Label Connected To
1A CPRI RX port on RRU 1
1B CPRI TX port on RRU 1
2A CPRI TX port on RRU 0
2B CPRI RX port on RRU 0
Table 3-7 Labels on and recommended connections for optical fibers of a single-mode optical
assembly between a BBU and an ODF or between an ODF and an RRU
Label Connected To
1A RX port on the BBU or CPRI RX port on the RRU
1B TX port on the BBU or CPRI TX port on the RRU
2A ODF
2B ODF
3.6 RRU RF Jumper
The 1/2" RRU RF jumper transmits and receives RF signals between an RRU and an antenna.
NOTE
l When the distance between an RRU and an antenna is within 14 m (45.93 ft.), connect one end of the RF
jumper to the ANT-TX/RXA or ANT-TX/RXB port at the RRU bottom, and connect the other end to the
antenna.
l When the distance between the RRU and the antenna exceeds 14 m (45.93 ft.), connect one end of the RF
jumper to the ANT-TX/RXA or ANT-TX/RXB port at the RRU bottom, and connect the other end to the
feeder. Then, connect the other end of the feeder to the antenna.
l If the customer prepares the RF jumper, the length of the RF jumper should be as short as possible and not
exceed 2 m (6.56 ft.).
Exterior
An RF jumper has a DIN male connector at one end and a customized connector at the other
end.
Figure 3-9 shows an RF jumper with a DIN male connector at each end.
RRU3942
Hardware Description
3 RRU Cables
Issue 02 (2012-06-29) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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