User's Manual

5
SERIAL Connector
Pin# Signal Name Description IO Electrical Characteristic
1 Vout1
Supply voltage
output
O Vo = 5V ( Vout 1~2 Total Imax = 500mA )
2 GND Signal ground G
3 TX1 RS232 Data output O
4 RX1 RS232 Data input I
5 Vout2
Supply voltage
output
O Vo = 5.0V, (Vout1~2 Total Imax = 500mA)
6 GND Signal ground G
7 TX2 RS232 Data output O
8 RX2 RS232 Data input I
9
1-Wire
1-Wire Data
input/output
I/O (BOM optional)
Vout3
Supply voltage
output
I
Vo = 5.0V, (Vout1~3 Total Imax = 500mA)
(BOM Optional)
10 GND Signal ground G
11 TX3 RS232 Data output O If 1-wire version, this pin unused.
12 RX3 RS232 Data input I If 1-wire version, this pin unused.
13 SPK+ Audio output O
14 SPK- Audio output O
15 MIC+ Microphone Input I
16 MIC- Microphone Input I
17
RXA
RS485 input A
I Full Duplex (*Half Duplex setting by
jumper)
18 RXB RS485 input B
I Full Duplex (*Half Duplex setting by
jumper)
19 TXA RS485 output Z
O Full Duplex (*Half Duplex setting by
jumper)
20 TXB RS485 output Y
O Full Duplex (*Half Duplex setting by
jumper)
21 RS485_GND RS485 ground R_G
22 CANH CAN High I
23 CANL CAN Low I
24 CAN_GND CAN ground C_G