Owner manual

SERIAL CABLE WIRING DIAGRAM
The serial port on the LecNet device is a minimal RS-232 implementation. The figure shows the wiring diagram to
accommodate interconnection with either a 9 or a 25 pin serial port on a PC or other serial device.
LecNet Device to PC
3.5MM
Stereo Plug
9 or 25 Pin Female
D-Subminiature
S
R
T
Wiring Diagram, 9 Pin D-Sub
N/C
CD
1
Tip
LecNet Device Transmit
RX
2
Ring
LecNet Device Receive
TX
3
Host
Gnd
DTR
4
Sleeve
Serial
Gnd
5
LecNet Port
Port
DSR
6
(PC)
RTS
7
CTS
8
N/C
RI
9
Wiring Diagram, 25 Pin D-Sub
DSR
6
DTR
20
LecNet Port
LecNet Device Transmit
LecNet Device Receive
Gnd
Tip
Ring
Sleeve
3
2
7
1
4
5
RX
TX
Sig Gnd
Chassis Gnd
RTS
CTS
Host
Serial
Port
(PC)
24