Directed Electronics ProSecurity RK20 Installation Manual page 38

For instance: You have programmed Channel 1 and you want to program Chan-
nel 3. Release the Program switch. Press it two times and release it to advance
from Channel 1 to Channel 3. Now, press and hold the Program switch. The
LED flashes three times. As before, do not release it.
Learn Routine is exited if:
• The ignition is turned off
• The program switch is pressed too many times
• More than 25 seconds elapses between steps
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