Queclink GV304N, User Manual

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GV304N User Manual
TRACGV304NUM001
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2.3. Interface Definition
The GV304N 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 GV304N
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
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