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Appendix E Testing with the TBA0STU Calibration Test Unit
TB9400/TN9275 Installation and Operation
© Tait International Limited May 2023
Appendix E Testing with the TBA0STU
Calibration Test Unit
The TBA0STU Calibration Test Unit (CTU) can be used with TB9400 base
stations with hardware version 1.01 (or later) and firmware version 2.60 (or
later). Testing can be done for the balanced audio line, RSSI, TX Key, and
RX gate.
CTU Connections and Controls