Tait TB9300 - Page 132

132 Appendix E Testing with the TBA0STU Calibration Test Unit TB9300 Installation and Operation Manual
© Tait International Limited April 2024
Function Supported by TB9300 Information
b
Serial port Not used
c
Power LED Supported (see Note 1) The power LED is lit when the
CTU is powered up. This supply
powers the speaker and LEDs.
You do not need to provide
power to the CTU to make audio
level measurements or to use
the digital input switches.
d
Noise source output and on/off
switch
Not used (see Note 2) Use the noise source in the
reciter controlled from the
WebUI to test the receiver
e
Balanced line input Supported Connects the LINE INPUT
connector to the balanced line
input on the system interface
f
Speaker audio selection switch Supported This switch directs either the
balanced or unbalanced
receiver output audio to the CTU
speaker. When set to “OFF”, no
audio is present on the speaker.
g
Unbalanced line input Supported This input is connected to the
unbalanced audio input on the
system interface connector
h
Unbalanced line output Supported Connects the UB OUTPUT to
the unbalanced audio output on
the system interface. The audio
can be monitored on the CTU
speaker switched to
Unbalanced.
Note: This output is DC
coupled. See Section 4.6.9 for
more information.
i
Balanced line output Supported Connects the LINE OUTPUT to
the balanced line output on the
system interface. The audio can
be monitored on the CTU
speaker switched to Balanced.
j
600 Ohm load on/off switch Supported This switch connects or
disconnects the 600 load
across the balanced LINE
OUTPUT. This allows the output
to be terminated correctly for
calibration procedures. Turn the
switch on if the LINE OUTPUT is
not otherwise terminated.
1)
System interface connectors The RJ45 connector can be
used if the TBC101A E&M
Isolation Adapter is fitted
Only the RJ45 connector on the
CTU is supported