190-01879-11
GMA 245/245R Installation Manual
Rev. 6
Page 1-5
1.3.3 Power Requirements
The GMA 245/245R will operate down to emergency voltage (9 Volts). Below 11 Volts, the USB charge
port and the speaker are disabled.
Table 1-5 GMA 245/245R Power Requirements
Characteristic
Specification
Input Voltage Range
11 to 33 Vdc
Leakage Current*
< 1 mA
*Current the unit draws if turned off (GMA 245 is turned of by the knob, GMA 245R can only be turned
off by breaker).
Table 1-6 GMA 245 Power Requirements
Characteristic
Current Draw
Power Consumption
Idle Current*
0.32 A @ 14 VDC
0.18 A @ 28 VDC
4.48 W @ 14 VDC
5.04 W @ 28 VDC
Typical Operating Current without USB charge
port being used.
0.77 A @ 14 VDC
0.40 A @ 28 VDC
10.78 W @ 14 VDC
11.20 W @ 28 VDC
Maximum Current with no USB charge port
connection
1.11 A @ 14 VDC
0.87 A @ 28 VDC
15.54 W @ 14 VDC
24.36 W @ 28 VDC
Maximum Current with USB charge port
connection
2.31 A @ 14 VDC
1.45 A @ 28 VDC
32.34 W @ 14 VDC
40.60 W @ 28 VDC
*Unit current drawn with power applied, no audio, and minimum lighting.
Table 1-7 GMA 245R Power Requirements
Characteristic
Current Draw
Power Consumption
Idle Current*
0.32 A @ 14 VDC
0.18 A @ 28 VDC
4.48 W @ 14 VDC
5.04 W @ 28 VDC
Typical Operating Current without USB charge
port being used.
0.60 A @ 14 VDC
0.32 A @ 28 VDC
8.40 W @ 14 VDC
8.96 W @ 28 VDC
Maximum Current with no USB charge port
connection
0.92 A @ 14 VDC
0.77 A @ 28 VDC
12.88 W @ 14 VDC
21.56 W @ 28 VDC
Maximum Current with USB charge port
connection
2.1 A @ 14 VDC
1.35 A @ 28 VDC
29.40 W @ 14 VDC
37.80 W @ 28 VDC
*Unit current drawn with power applied, no audio.
