User's Manual

GV300W User manual
TRACGV300WUM001 - 10 -
2.3. Interface Definition
The GV300W has a 16 PIN interface connector which contains the connections for power,
I/O, RS232, microphone, speaker, etc. The sequence and definition of the 16PIN connector
are shown in the following figure:
Figure 2. The 16 PIN Connector on the GV300W
Table 4. Description of 16 PIN Connections
Index
Description
Comment
1
MICP
Single end, 2-2.2k microphone, internal bias
2
AGND
Analog ground
3
IGN
Ignition input, positive trigger
4
RXD
UART RXD, RS232
5
TXD
UART TXD, RS232
6
GND
Power and digital ground
7
OUT3
Open drain, 150 mA max
8
OUT2
Open drain, 150 mA max
9
EARP
Differential output, 32 ohm 1/4w speaker
10
EARN
11
PWR
External DC power input, 8-32V
12
IN2
Digital input, negative trigger
13
IN1
Digital input, negative trigger
14
OUT1
Open drain, 150 mA max ,with latch circuit
15
AD1/IN3
Multifunction input, analog or digital input
0-16V
16
AD2
Analog input 0.3-16V