TBA0STU/TBA0STP CTU Operation Manual
Using the CTU with a TB7100
17
© Tait Electronics Limited September 2005
The TB7100 CTU
Adaptor Board
You must use the TB7100 CTU adaptor board when connecting a TB7100
base station to the CTU. The CTU adaptor board plugs into the 25-way
system interface connector on the CTU. It is designed to make the I/O of
the TB7100 system interface compatible with the I/O of the CTU system
interface. The LEDs and test points on the adaptor board are described
below.
Figure 3.3
LEDs and test points on the TB7100 CTU adaptor board
b
This red LED indicates the state of the isolated Rx Gate. It can be lit when the gate is open or closed,
depending on the setting of link J401 on the TB7100 system interface board (refer to “Relay Polarity”
in the “Preparation for Operation” chapter in the Installation and Operation Manual).
c
This green LED indicates the status of Rx digital in/out 1 (pin 19 on the TB7100 system interface
connector). It is lit when the line is pulled low.
d
TP2 provides an opto-key input (common ground when using the CTU adaptor board).
e
This green LED indicates the status of Rx digital in/out 2 (pin 22 on the TB7100 system interface
connector). It is lit when the line is pulled low.
f
This orange LED indicates the status of Tx digital in/out 1 (pin 10 on the TB7100 system interface
connector). It is lit when the line is pulled low.
g
This orange LED indicates the status of Tx digital in/out 2 (pin 12 on the TB7100 system interface
connector). It is lit when the line is pulled low.
h
TP4 provides a 13.8V output test point.
b
c
d
e
f
g
h
