Acnodes PCH 3298 - Manual (Page 16)

PCH 3098
8 inch Atom Fanless Panel PC
© Copyright 2012 Acnodes, Inc.
All rights reserved. Product description and product specifications
are subject to change without notice. For latest product information,
please visit Acnodes’ web site at www.acnodes.com. 14628 Central Ave.
Chino, CA91710
Tel:909.597.7588, Fax:909.597.1939
7. COM 1 : (Type DB9), Rear serial port, standard DB9 serial port is provided to make a direct
connection to serial devices. COM1 port is controlled by pins No.1~18 of JP485, select output
Signal RS232 or RS422 or RS485, for details, please refer to description of JP485.
Pin#
Signal Name
RS232 RS422 RS485
1 DCD# (Data Carrier Detect) 422_TX- 485_D-
2 RXD (Received Data) 422_RX- NC
3 TXD (Transmit Data) 422_RX+ NC
4 DTR (Data Terminal Ready) 422_TX+ 485_D+
5 Ground Ground Ground
6 DSR (Data Set Ready) NC NC
7 RTS (Request To Send) NC NC
8 CTS (Clear To Send) NC NC
9 RI (Ring Indicator) NC NC
please refer to description of JP485
8. COM 3: (Typ e D B9), Rear serial port, standard DB9 serial port is provided to make a direct
connection to serial devices. COM1 port is controlled by pins No.1~6 of JP3 select output Signal RI
or 5V or 12v, for details, please refer to description of JP3.
Pin# Signal Name
1 DCD# (Data Carrier Detect)