Description
2-9
1
2
3
4
5
2.2.2.3
Synchronisation board
The synchronisation board includes the following parts:
• 1 J1 connector (item 1) for connecting to the converter,
• 1 J2 connector (item 2) for connecting to the fan plate,
• 1 J3 connector (item 3) for connecting the thermal probe,
• 1 J4a/b connector (items 4 and 5) for the connection of 1 or 2 duplexers (antenna
diversity option),
• 1 J5 connector (item 12) for connecting the 3G PA-TRX,
• 1 J6a connector (item 11) to connect the SYNC of the 3G PA-TRX
(6.4 MHz)
,
• 1 J6b connector (item 10) to connect a slave IDR IDO 3G (option, signal
6.4 MHz
),
• 1 J7 connector (item 9) to connect a slave IDR IDO 3G (option HSX, HTX and config
signals),
• 1 J8 connector (item 8) for the connection to an external alarm (dry loop output),
• 1 green PWR LED (item 14): + 12 V power supply presence,
• 1 yellow EXT. LED (item 13): IDR IDO 3G in slave mode,
• 1 red FAN LED (item 6): fan plate alarm,
• 1 red SYNC LED (item 7): "Synchro" alarm (synchro signals problem) flash in slave
mode if the internal synchro signal has a fault.
The synchronisation board (see Plate 6.III, item 1) is secured in the chassis with 6 screws
and washers.
