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CyberResearch
®
CPU Cards CPBH Series
CyberResearch, Inc. 17
25 Business Park Drive P: (203) 483-8815; F: (203) 483-9024
Branford, CT USA www.cyberresearch.com
z CN14: COM4 Connector (5x2 Header)
PIN Description
PIN
Description
1 DCD3 2 DSR3
3 RXDD3 4 RTS3
5 TXDD3 6 CTS3
7 DTR3 8 RI3
9 GND 10 N/C
2
4
6
8
10
1
3
5
7
9
DSR3
RTS3
CTS3
N/C
RI3
DCD3
RXDD3
TXDD3
GND
DTR3
The onboard COM2 may be configured as RS-232, RS-422, or
RS-485.
z CN11: RS-422/485 Connector (5x2 Header)
PIN Description
PIN
Description
1 TX- 2 TX+
3 RX+ 4 RX-
5 GND 6 RTS-
7 RTS+ 8 CTS+
9 CTS- 10 N/C
2
4
6
8
10
1
3
5
7
9
TX+
RX-
RTS-
N/C
CTS+
TX-
RX+
GND
CTS-
RTS+
z JP1/JP2/JP4/JP5: COM2 Use RS-232 or RS-422/485 Select
Options Settings
RS-232 (default) Short 2-3
RS-422/485 Short 1-2
1
3
3.12 IrDA Connector
CN4 is a 5-pin internal FIR communication connector for connection of
an IrDA device.
z CN4: IrDA Connector
PIN Description
1 VCC
2 N/C
3 IRRX
4 GND
5 IRTX
VCC
N/C
IRRX
IRTX
1
GND
2
3
4
5