ADT Security Services 6112 User Manual
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Zone Bypass — When a zone is bypassed (not armed with 
the rest of the system), its indicator light flashes on and off 
slowly.
Faulted Zone — A faulted zone is indicated by a steadily 
lighted zone status indicator.
Zone Alarm Memory — When a zone has been faulted 
into alarm its indicator flashes on and off rapidly.
The Zone Status Indicators also indicate if the system is ready to 
arm or not. If the zone status indicators are not lit, the system 
can be armed by entering your personal passcode or any of the 
arming commands available to your system. If any of the zone 
status indicators are lit, the system has a faulted zone. Correcting 
the faulted zone will usually mean closing a door or window.
AC Power Indicator
When the red AC indicator lights steadily, your security system 
is operating from AC voltage. When the AC indicator is 
flashing, your security system is operating on back-up battery 
power. If the indicator continues to flash, contact your Central 
Station.
Command Mode Indicator
When the COMMAND bar is pressed, the red Command Mode 
indicator lights steadily to show that the system is ready to accept 
a command. The Command Mode indicator remains lighted for 
15 seconds or until the command is completed.
Digital Keypad
The Command Center has a lighted digital keypad used to enter 
passcodes and system commands into the security system. As 
you touch the keys to enter a passcode, the Command Center 
emits a short beep tone to indicate that your entry is accepted.
COMMAND Bar
The I
COMMAMD
bar is used to perform one- or two-digit
COMMAND functions.
NOTE: Some systems require a security passcode to be entered
before the function keys or
COMMAND
bar can operate.
O My system requires a security passcode:_________________
d My system does not require a security passcode.
Enter
mm
Key
When the passcode has been completed, you must press the
ENT
(ENTER) key to activate the passcode. If you do not press the
ENT
key, the passcode is ignored by the security system.
System commands (entries that begin with the COMMAND bar) 
do not require the 
ENT
key to activate the entry.
When entering a passcode or command at the Command Center, 
each key must be pressed within five seconds of the last key 
entry. After five seconds have expired from the last key entry, 
the entire entry is cleared and the passcode must be started over.
Function Keys
The Command Center has three function keys (labeled A, B, and 
C). The function keys can be used to perform system commands 
with the touch of one key. Your alarm technician programs the 
Function Keys
Function Key
Function Key
Function Key
Function Key
B
Function Performed
