Installation Guide

Date : October 18th 2019
DM3G Low-band
Ref : Installation Guide
Edition 1.2.0
Page
13/27
Power supply connector and Inputs/outputs
Power supply is performed by a 13.2VDC SELV through a DB44 male connector.
Also this connector provides input / output signals for special applications.
See paragraph 5.4 for detailed pinout.
GPS antenna connector
SMA type female connector
5.4 Rear DB44 connector
Male DB44 connector, located on the rear of the device, is used for terminal power supply, and
also for various I/O.
DB44
pin
number
Name
Function
Specifications
1
GND
Ground for power and signals
2
GND
Ground for power and signals
3
V24 DTR
V24 Data Transmit Ready
4
RS232 CTS
RS232 Clear To Send
5
V24 DSR
V24 Data Set Ready
6
ON / OFF
On / Off
7
KL2
Horn 2
8
KL1
Horn 1
9
HP-
External loudspeaker (-)
10W / 8 Ohms @
10% THD
10
HP+
External loudspeaker (+)
10W / 8 Ohms @
10% THD
11
GND
Ground for power and signals
12
MCE AUDIO_DIFF_IN+
MCE Differential audio input (+),
signal from MCE
-10dBm / 600 Ohm
+/- 1dB
13
MCE AUDIO_DIFF_IN-
MCE Differential audio input (-),
signal from MCE
-10dBm / 600 Ohm
+/- 1dB
14
GND
Ground for power and signals
15
AUDIO_DIFF_OUT+
AF differential signal transmitted
by DM3G
-10dBm / 600 Ohm
+/- 1dB
16
VBAT
Power
Min = 10.8 V Nom =
13.2 V Max=15.6 V
17
VBAT
Power
Min = 10.8 V Nom =
13.2 V Max=15.6 V
18
GND
Ground for power and signals
19
RS232 RTS
Request To Send