ROCKY-3705EV-R2 Socket 370 Celeron
TM
, Pentium III
®
& Tualatin Processor with Ethernet , VGA , Audio Board
19
•
CN12 : Serial Port 2x7 pin header Connector (COM2)
COM2 Support Three Mode : RS232, RS422/RS485
( For 2x5 pin header Connector )
RS232 Mode
Pin No. Description Pin No. Description
1 DCD 2 DSR
3 RXD 4 RTS
5 TXD 6 CTX
7 DTR 8 RI
9 GND 10 NC
RS422 / RS485 Mode ( Option )
( For 2x7 pin header Connector )
RS422 Mode
Pin No. Description Pin No. Description
1 2
3 4
5 6
7 8
9 10
11 TX+ 12 TX-
13 RX+ 14 RX-
( For 2x7 pin header Connector )
RS485 Mode
Pin No. Description Pin No. Description
1 2
3 4
5 6
7 8
9 10
11 12
13 RX+ 14 RX-
ROCKY-3705EV-R2 Socket 370 Celeron
TM
, Pentium III
®
& Tualatin Processor with Ethernet , VGA , Audio Board
20
3.5 Keyboard/Mouse Connector
The
ROCKY-3705EV-R2
provides one external keyboard &
mouse ,one mouse and one keyboard connectors.
•
CN23 : Extended Keyboard & PS/2 Mouse 6-pin Mini Din
Connector
PIN NO.
DESCRIPTION
1 KB
DATA
2 MS
DATA
3 GND
4 VCC
5 KB
CLOCK
6 MS
CLOCK
•
CN19 : 5-pin Header Keyboard Connector
PIN NO.
DESCRIPTION
1 KB
CLOCK
2 KB
DATA
3 N/C
4 GND
5 +5V
3.6 External Switches and Indicators
There are several external switches and indicators for monitoring
and controlling your CPU board. All the functions are in the CN2
connector.
•
CN2 : Multi Panel