Bell System CS106 - Changing the Security Key (Function 91)

CS106/BL106 Combined Door Entry and Coded Access
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Changing the Security key (Function 91)
The security key is the code that must be entered on the keypad to gain access
to the settings.
The security key is factory set to 1212, to maintain security we recommend that
this be changed immediately.
To ensure an adequate level of security it is recommended that a minimum of 4
digits be used for the security key, giving 10,000 combinations.
Procedure
 Enter the current Security
key.
 Type :
91 +
++
+ <New Key> #
 Both LEDs flash once
 Exit program mode by
pressing ++
++++
++
Factory Setting
= 1212
Example
91 +
++
+ 87305 #
(Security key = 87305)