Honeywell Dolphin 9900 User Manual page 131

RS-232 Pin Configuration
Base/Host Port (DCE)
Pin / Input Signal
2 / (RD)
3 / (TD)
5 / (SG)
4 / (DTR)
6 / (DSR)
7 / (RTS)
8 / (CTS)
Refer to this table if you want to make your own cables.
To do so, you must determine if your host RS-232 device is:
• 9-pin or 25-pin and
• configured as a DCE or DTE device.
IBM AT DB9 IBM XT DB25
(DTE) (DTE)
2
3
5
4
6
7
8
Modem DB25
(DCE)
3 2
2 3
7 7
20 6
6 20
4 5
5 4
12 - 7