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Chapter 4: Communications Programming
47
4.14 The Security Code
The Security Code is the last step after setting all other pro-
gramming parameters for the Model 1104. The code consists of
a 4-digit number you select and will effectively prevent
unauthorized changes to the Model 1104’s programming.
When the Security Code is activated, all keyboard program-
ming is inaccessible. The Model 1104 may be interrogated
using the WHAT IS key, but the keyboard must be unlocked,
via the Security Code, before any additional programming is
possible.
4.14.1 Locking the Keypad
To program the Security Code:
1. Press SET.
2. Press CODE.
The Model 1104 will say “Enter security code.”
3. Using the number keys, enter 4 digits. The Model 1104
says, “OK.” The keyboard is now locked.
If unauthorized persons attempt to set a parameter, an
error message, “Error 2,” is returned. Whenever any
operation except WHAT IS takes place without entering
the security code first, this error message occurs.