The Psion Organiser II Forum (
User Forum >> User Post >> RO-case pinout
(Message started by: Boris on Nov 25th, 2005, 5:13pm)

Title: RO-case pinout
Post by Boris on Nov 25th, 2005, 5:13pm
Here is the pinout of the plug of the RO-Comms connecter cable (see attached image for details).

1...GND (signal ground)
2...DSR (data set ready)
3...CTS (clear to send)
4...RTS (ready to send)
5...RXD (receive data)
6...TXD (transmit data)
7...shielding ground
8...DTR (data terminal ready)

Note: If you need the pinout for the connector built into the case, just mirror the attached image!

Wireing details for the connector cable:
RO plugmodern 9-pin plugold 25-pin plug
Shield7see below1
Shielding ground should be connected to the cable shield. In case of the 9-pin plug, it should also be connected to the plug chassis.

The 9-pin and the 25-pin plugs are both female.

I am still investigating the wireing details for the bacode reader interface....

Title: Re: RO-case pinout
Post by Boris on Oct 6th, 2006, 10:39am
The URL of the plug manufacturer (mentioned in the image) has changed in between:

It is now
Look for Series 712....

The Psion Organiser II Forum » Powered by YaBB 1 Gold - SP 1.1!
YaBB 2000-2002,
Xnull. All Rights Reserved.