Honeywell Code Encryptor II Installation Manual page 7

Mandatory Programming
Programming a User Code is mandatory when using the Code Encryptor II. This
gives the Code Encryptor microprocessor a User Code to arm and disarm the panel.
Step 6) Verify that the four-digit code you plan to teach the Code Encryptor II is a
valid four-digit user code. Example: From the keypad use that four-digit
code to arm the panel. If the panel arms, that is a good code. If it does
not, program that user code into the alarm panel. – The Code Encryptor II
uses that four-digit code to arm and disarm the panel, thus that code must
be valid.*
Step 7) Press and HOLD the program button on the receiver. The light will come
ON and stay ON for three seconds then turn OFF. Once the light turns
off, RELEASE the program button, the light will begin to flash rapidly.
Step 8) Using the keypad, slowly and firmly enter the four-digit user code. After
the fourth entry the LED will stop flashing. This code has now been
entered into the Code Encryptor's non-volatile memory. The Code
Encryptor will remember this user code in the event of a power failure. To
change to a new user code, repeat steps 7 and 8 above.
*NOTE: We recommend using a user code that the customer cannot
change. If the user code that is programmed into the CE Module is
changed, the Code Encryptor II will not disarm the alarm panel.
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