Multitech Hub User Manual page 31

9-Pin DB9 (COM 1) Connector
This connector attaches the SBC board to the COM 1 serial port.
Pin Identification
Pin
1
2
3
4
5
6
7
8
9
6-Pin Circular Jack
This connector connects the keyboard to the SBC board.
Pin Identification
PinDescription
1
2
3
4
5
6
CommPlete 4000 Communications Server User Guide
1
6
Figure A-2. 9-Pin DB9 COM 1 Connector
Description
DCD
RX Data
TX Data
DTR
Ground
DSR
RTS
CTS
RI
6
4
2
Figure A-3. 6-Pin Mini-DIN Keyboard Connector
+Keyboard Data
NC
GND
+5V DC
+Keyboard Clock
NC
5
9
5
3
1
Appendices
31