Contrary to what DrJoe has stated, the IR543 I have can control only 10 units using IR remote. There are no IR codes for units 11,12,13,14,15,16. Unit 10 is controlled by key 0 on the remote. This is stated in the IR543 manual.
Also as David Mark mentioned here:
[Link: remotecentral.com]
there is a problem with the IR543AH bright and dim functions.

This message was edited by hiker on 02/07/05 18:04 ET.