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TB9400 Installation and Operation Manual

© Tait Limited March 2015

The connections between modules at the front of a dual 50W base station 
are shown below. 

PA 1 is powered by a direct connection from the PMU. The other modules 
in the subrack are powered from the PMU via the subrack interconnect 
board. The DC supply to the reciters is via the system control bus ribbon 
cable.

b

28VDC output for PA 1

g

transmit reverse input

c

not used

h

system control bus and 28VDC input

d

system control bus

i

transmit forward output

e

transmit reverse output

j

transmit forward input

f

28VDC input

1)

28VDC output to subrack interconnect board

b

d

e

f

g

d

e

f

g

h

i

j

h

i

j

d

1)

c