User's Manual

145
D.3 Serial Cable DB25 Female to DB25 Male Pinouts
DB25 Female DB25 Male
2 — — — — — — — — 2
3 — — — — — — — — 3
4 — — — — — — — — 20
5 — — — — — — — — 5
6 — — — — — — — — 6
7 — — — — — — — — 7
8 — — — — — — — — 8
20 — — — — — — — — 4
22 — — — — — — — — 22
D.4 Cable Pinout Signals
The signals for the cable pinouts are as follows:
DB9 DB25 DB25 DB9
Male Male Female Female
Pin Pin Signal Pin Pin Signal Description
5 7 GND 7 5 Protective Ground
3 2 TXD 2 3 Transmitted Data
2 3 RXD 3 2 Received Data
7 4 RTS 4 7 Request to Send
8 5 CTS 5 8 Clear to Send
4 20 DTR 20 4 Data Terminal Ready
6 6 DSR 6 6 Data Set Ready
1 8 RLSD 8 1 Received Line Signal
Detector
9 22 RI 22 9 Ring Indicator
APPENDIX C: Cable Pinouts