Technical data

VHF/AM RADIO FSG 2T
3 Installation
40 FAV_D10048 June 2014
3.5.6 Backlighting
IMPORTANT!
 Backlighting of the display and front panel is turned ON or OFF via a
separate input, but can be controlled by the radio’s VOL switch, if desired
(refer to Figure 3 - 8).
 In order to save current while supplied from a battery an external suitable
illumination switch is suggested.
The FSG 2T includes a LED backlight (night design). Pin 8 may be connected either
directly to the 13.8 Vdc A/C power (perhaps via a suitable dimmer), or to the switched
DC output Pin 13 (refer to Fig. 3 - 8).
3.5.7 Connection to a 28 Vdc airborne system
Interconnection of the FSG 2T transceivers to a 28 Vdc supply requires a capable voltage
converter. Interconnection wiring shall be according to instructions of the DC converter
manufacturer.
For backlighting from a 28 Vdc aircraft supply, insert a 230 Ohm resistor / 1 W,
connected in series.