GF80.20-P-4010A | Transmitting remote control signal, function | 18.12.96 |
MODEL 202 as of 1.6.97,
208, 210.081 /281,
210 (except 210.081 /281) as of 1.3.97
When a button is pressed on the remote control key a radio frequency (RF) signal is transmitted first followed by an infrared (IR) signal. The signal contains a code for checking the authorization and an instruction to execute a function.
The radio frequency signal has a greater range; the IR signal is less sensitive to interference. However, for IR reception the remote control key must be pointed at one of the IR receivers next to the door handle.