SBC-APL-350 HARDWARE MANUAL
– VER 1.00 JUN 12 2019
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3.9. Serial Port Connector (COM1)
This product is available with one external full function non-galvanic isolated RS-232 serial port: COM1
and one internal full function non-galvanic isolated RS-232 serial port pin header: COM2. The external
serial port has the following pinout:
COM1:
Pin #
Signal
Description
Device
1
SERIAL1_DCD
Port#1 Data Carrier Detect (input)
COM1
2
SERIAL1_RXD
Port#1 Receive data (input)
COM1
3
SERIAL1_TXD
Port#1 Transmit data (output)
COM1
4
SERIAL1_DTR
Port#1 Data Terminal Ready (output)
COM1
5
GND
Ground
6
SERIAL1_DSR
Port#1 Data Set Ready (input)
COM1
7
SERIAL1_RTS
Port#1 Request-to-send (output)
COM1
8
SERIAL1_CTS
Port#1 Clear-to-send (input)
COM1
9
VCC*
5V supply output (current max. 500mA)
NOTE: COM1/COM2 supply output is set by default at 5V. The supply output of both ports can be set
either at 5V or 12V. To set the supply output at 12V you need to adjust COM-PWR1 jumper settings. The
COM-PWR1 jumper can be found at location
4. Internal Connectors and Expansion
Header on SBC-APL-350: DB9 (9-pin) standard D-Sub male connector.
Cable receptacle: DB9 (9-pin) standard D-Sub female connector.
3.10. Power Input Connector
The SBC-APL-350 can be powered over the DC INPUT connector.
Pin #
Signal
Description
1
VCC
DC Voltage input (10~30VDC)
2
GND
Ground
Header on SBC-APL-350: JKCR DCD-020-66MA (5.5/2.1mm screw locking barrel jack).
Cable receptacle: DC Power connector female plug (5.5/2.1mm screw locking).
