Essex Electronics K1 Series Installation Instructions Manual page 12

Example: Site Code of 004 and a code of 123 entered
1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 1 1 1
Note: An error code, which sends all binary 1's to your panel, is
generated by any of the following:
a. Pressing the # key with no preceding digits.
b. Pressing any number of only 0's prior to pressing the # key.
c. Pressing 65,535 or any number above 65,535. Do NOT
program your panel to accept code number 65,535.
8 Essex Electronics, Inc. | 805.684.7601 | 800.KEY-LESS | fax 805.684.0232 | keyless.com