Specifications

USER’S HANDBOOK
B. Detailed description
(1)T
est Interface Device
The Test Interface Device essentially consists of a measuring board and a battery integrated in a non-
waterproof box. The battery provides a typical autonomy of 2 hours after a complete recharge process
- Batteries needs to be recharged for at least 5 hours.
The Test Interface Device has a phase demodulator for UHF measurements and an audio
demodulator for the VHF measurements. It measures the radio-frequency (RF) characteristics for
three frequencies: 406 MHz, 243 MHz and 121.5 MHz.
The following components are located on the top of the Test Interface Device (Ref. Fig. 3) :
- Three-color indicator light (1) :
 Green indicates that the Test Interface Device is in operation (ON position),
 Red indicates that the Test Interface Device's internal battery is being recharged. The red light
goes out automatically when battery-charging process has been completed,
 Flashing red indicates a low battery state. Battery requires recharging. The Test Interface
Device's and probably the computer's battery must then be recharged.
When both colors (green and red) are on, the indicator light is orange so:
 Permanent orange indicates that the Test Interface Device is “ON” and battery is recharging,
 Flashing orange indicated that the device is “ON” and battery needs to be recharged soon.
- The Test Interface Device's ON/OFF slide switch (2).
Note: Avoid to cover the Test Interface Device with paper or any other thing, allowing normal
cooling during battery charging or operation (heat sink).
Connectors are installed on one face (right) of the Test Interface Device. The following connections
are provided:
- PROG connector (3) to which the optional programming cable is connected,
- DC 12V IN connector (4) to which the external power supply adapter is connected (Fig. 2 item
5),
- RF connector (5) which receives the RF signals from the ELT,
- DC 12V OUT connector (6), Not Used anymore must remain unconnected,
- COMP connector (7) provides the RS232 link with the portable computer or basic computer in
the laboratory version (STB-06-LA).
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. 08/12