Tait TB9400 User Manual

TB9400/TN9275 Installation and Operation Appendix E Testing with the TBA0STU Calibration Test Unit 141
© Tait International Limited May 2023
Function Supported by TB9400 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 Switch to Balanced or Off
g
Unbalanced line input Not used
h
Unbalanced line output Not used
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
1!
System interface connectors The DB25 connector is
supported
1@
Digital input switches Supported for digital inputs 3 to
12 on the TB9400
These switches let you set the
digital inputs high or low. The
standard switch settings are:
■ 1 = high, 5V (10k pull-up to
5V)
■ 0= low, active, 0V
1#
Speaker Supported for monitoring the
balanced line output
The CTU is fitted with a 0.5W
16 speaker. Audio from
balanced LINE OUTPUT can be
heard on the speaker.

Tait TB9400 Specifications

General

Brand	Tait
Model	TB9400
Category	Accessories
Language	English