Device Description HG G-31500-A | English, Revision 02 | Date: 10.06.2021
10
Chapter 3 – Hardware
3.6 Mounting
Figure 3
Mounting: Lugs / top-hat rail mounting (variant) / casing dimensions
3.7 Audio Amplifier
The integrated audio amplifier has a nominal power of 2 x 10 watts into 4 ohms. The
peak power is up to 2 x 25 watts, which should be taken into account when selecting
the speakers.
The maximum achievable power values depend on the level of the supply voltage
as well as the level of the audio files. The mentioned power values are reached from
the nominal voltage of 24 volts and a file level of 95 dB.
3.8 Selection Mono/Stereo
The audio player supports the playback of stereo files. If only one speaker is to be
connected to the device, it is recommended to select the Mono mode. For this pur
-
pose, either mono audio files can simply be used, or mono operation is forced by ap
-
plying ground potential to input Mode of connector ST 2 (connector ST 2: connect
pin 11 with pin 12, s. section 3.5.2 on page 9).
3.9 Potentiometer
The potentiometer is used to set the maximum volume. This value then corresponds
to 100 %. The adjustable volume is thus in the range from 0 % (silence) to 100 %
(potentiometer value).
For the adjustment, an audio file with a volume of 100 % must be played back. This
can be achieved as follows:
13
TxD
serial interface RS 232 (telegram structure s. section
4.3 on page 13)
14
GND
15
RxD
16
Ant
—
Table 4
Pin assignment ST 2 (part 2 of 2)
Pin
Function
62,5
11,5
90
15,5
106
4,5
94
11
0
17,5
4,5
90
13,5
35
106
Mounting lugs
for fastening with screws
in different alignments
Version
G-31500
with adapter for
top-hat rail mounting
(highlighted blue)
HG
YA
