Bird Technologies 429-83H-01 Series-Manual - Manual (Page 20)

TX RX Systems Inc. Manual 7-9439-6 09/03/09 Page 12
shipped from the factory along with the
tower top box. Refer to Figure 12. The chas-
sis of the lightning arrester should be connected
to the master ground bus with a pigtail.
Installing the MCU
The MCU is designed for indoor mounting in a
common 19-inch relay rack or cabinet. The follow-
ing steps are required for proper installation.
1) Install the MCU into the rack or cabinet with four
mounting screws from the hardware kit (part #
3-16509) which is included with your shipment.
Make sure you use a nylon washer under the
head of the screws in order to protect the front
panel. Torque the mounting screws to no more
than 15 in/lbs. Over tightening the mounting
screws may damage the front panel.
2) Connect the MCU ground lug to the Equipment
Rack Master Ground Bar with a pigtail.
3) Connect the main and test transmission cables
to the appropriate connectors at the back of the
unit.
Figure 11: Application of rubber splicing tape. Note: Additional waterproofing protection can be realized by
covering the rubber tape with either “Scotch Kote” or Vinyl Plastic Electrical Tape (“Scotch” brand 33+).
Test
Line
Antenna
Feedline
Main
Transmission
Line
Ground Lug
Moisture
Vent
Figure 12: Lightning arrester TXRX part # 8-21550.
This device must be connected to the master ground
buss with a pigtail.
RF In
from
Tower Top
RF Out
to MCU
CAT-5e
Cable
Here