HUAWEI BTS3012 Fast Installation Guide Internal Use
14
Install the
combined
short-circuiting
cables
To get combined carrier signals, use the combined short-circuiting cable to connect the TX
interface and IN interface of the DTRU board to achieve the combined output of transmitting
signals.
To install a combined short-circuiting cable, do as follows:
1.
According to the BTS configuration mode, confirm the connection relationship between TX
interface and IN interface on the DTRU plane.
2.
Connect one end (the N straight male connector) of the cable to the TX1 or TX2 interface
on the DTRU plane and the other end (the SMA straight male connector) to the IN1 or IN2
interface. Screw down the upper and the bottom connectors at the same time.
Install 1/2 inch indoor jumpers
Installing 1/2
inch indoor
jumpers
Caution
Tightly connect 1/2 inch indoor jumpers to avoid leakage of radio frequency
signals.
Connect one end of 1/2 inch indoor cable to the ANT port of the DDPU board and connect the other
end to the feeder cable through the feeder connector.
To install the 1/2 inch indoor cable, do as follows:
1. Cut cables into parts of proper length according to the cable distribution on cabling racks and
create DIN-type male connectors for both ends of the cables.
2. According to the configuration relationship, connect the DIN-type connector at one end of the
jumper to the antenna interface ANTA or ANTB on the top of the DDPU board and the DIN-type
connector at the other end of the jumper to the feeder cable of the antenna system.
3. Stick labels at both ends of a cable.
