Paradox 1738 Programming Very old panel - defaults are mostly wrong, use settings below Programming Locations Location 087 Enter 001 for daily test Location 110 Enter 0000 Location 131 LED 1 OFF (report disarm always) Dialer Options Location 135 (Tone dial) LED 3, 4, 5 ON All other LEDs OFF Location 136 (Auto Contact ID) LED 3 ON All other LEDs OFF Communication Settings Location 140 LED 5 ON (Contact ID) Location 143 P1 Account code Location 144 P2 Account code Location 151 Tel number 5555555 (5x7) Location 152 Tel number 5555555 (5x7) Important Notes This is a very old panel model