FP3700-T41 User Manual
2.4 Cable Diagrams
2-12
2.4.3 SIO Interface Cable Pin Connections
Signals and signal names used with the FP and the SIO cable (optional cable) are the same
as those used for PCs. Also, the same pin is used on both sides of the optional cable so
that you can connect the cable regardless of the cable direction.
Inch is used for the pitch of the connector screw on the PC. For this reason, inch (4-40) is
also used for the pitch of the connector screw for the cable and the FP.
1 +5VIN
Input
2 USB-
Input/Output
3 USB+
Input/Output
4 GND
Input/Output
1 +5VIN
Input
2 USB-
Input/Output
3 USB+
Input/Output
4 GND
Input/Output
Output
+5VIN
1
Input/Output
USB-
2
Input/Output
USB+
3
Input/Output
GND
4
Output
+5VIN
1
Input/Output
USB-
2
Input/Output
USB+
3
Input/Output
GND
4
FP
USB cable
PC
1
CD
Output
1
CD
CD
1
Input
CD
1
2
RD
Output
2
RD
RD
2
Input
RD
2
3
SD
Input
3
SD
SD
3
Output
SD
3
4
DTR
Input
4
DTR
DTR
4
Output
DTR
4
5
GND
5
GND
GND
5
GND
5
6
DSR
Output
6
DSR
DSR
6
Input
DSR
6
7
RS
Input
7
RS
RS
7
Output
RS
7
8
CS
Output
8
CS
CS
8
Input
CS
8
9
NC
9
NC
RI
9
Input
RI
9
FG
FG
FG
FG
FG
FG
FP
SIO cable
PC
2.4.4 USB Interface Cable Pin Connections