"Connecting" a Scantronic 703r Contact Transmitter to a Homelink 55 RFX unit.

Hi,

I've just installed a Scantronic Homelink55 and the hardwired side of this has worked perfectly straight away. However the wireless side has proved more problematic ? I am tring to 'link' the RFX16 unit with 2 x 703r transmitters, I can get the reciever into learn mode, either -- flashing for the sysetm to allocate the channel or, for instance with 09 flashing (I have configured it to addres from zone 09 onwards). I have the 703r set to have the Ln set to E -enabled; however, with 12v connected the green nlight is on but unless I change the oP there is no activity from the RED LED!! I've tried marrying the both 703rs and have tried both connected to the panel bus and on a test PSU! Neither works however I try it.

Am I missing a step with the 703r? When I power them down and back on they modulate the Red LED as if transmitting over IR as I'd expect, but the reciever takes no notice. I have double and tripple checked and, although there is no mention in either manual, the spec sheet http://www.securitywarehouse.co.uk/catalog/index.php?main_page=product_info&products_id=528 clearly states that the 703 works with the Homelink 55!!!

Unfortunately I don't currentlty have any other 868Mhz devices to check the RFX with, as I ordered the wrong PIRs and was sent a 534r 466MHz Vibration detector, instead of the 734r 868MHz door contact I'd ordered..

BTW - I am remembering to hold down select to save changes!

Any ideas, am I missing a step.