26 Using the CTU with a TB8100 TBA0STU/TBA0STP CTU Operation Manual
© Tait Electronics Limited September 2005
Important Do not power the CTU from a PMU fitted with a 48V
auxiliary power supply board. The maximum supply volt-
age for the CTU is 32VDC. Use either a PMU 12VDC or
24VDC auxiliary output, or an external power supply.
Note that the auxiliary output can be supplied to the CTU
via the system interface connector on the reciter if the aux-
iliary DC power cable is fitted, as well as via a direct con-
nection to the PMU auxiliary output.
SYSTEM CONTROL
BUS
This connects to the system control bus connector on the front of the reciter
for tuning, calibration and programming. You can also calibrate a PA when
it is linked to a reciter and CTU via the system control bus.
Note If you need to make your own system control bus cable, the rec-
ommended maximum length of the cable is one metre (39 inches).
2#
Figure 4.3 Example CTU connection to a TB8100 reciter
Power
25-way cable
16-way cable
15-way cable (TaitNet)
RS-232
Power
System Interface
Auxiliary Power
from PMU
(12 or 24V Only)
To PC running
Service Kit or
Calibration Kit
System Control Bus
CTU
Reciter
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