I contacted Pace to see if such codes exist and received the following reply:

"Thank you for your enquiry. Unfortunately these codes are not available, I will try to explain why.

The Pace box you have uses a high frequency remote infrared system known as Two Way TV. This system differs from standard remotes in two fundamental ways, and for these reasons it is not possible for standard learning type remote controls, or "all for one" type remotes, or IR relay devices, to correctly detect and reproduce the Two Way TV infrared codes.

Firstly it operates at a much higher transmitter speed, this is to allow it to be used for new TV applications such as video games. Secondly, where more than one handset is used with one box, it allows the box to determine which handset a particular command was sent from. This allows the box to support the use of multiple remotes simultaneously for more advanced interactive services in the future.

Sorry I couldn't be of any further help to you in this instance. I should add that Pace do not supply the remote control handsets for these boxes, they are in fact made by Philips.

If you have any further questions regarding your box I would be happy to answer them.

Kind regards,

Matthew Whitehead BEng MBA
Product Manager
Interactive Cable Division"

I don't quite understand what this all means but I guess that discrete on/off codes are not available.