Johnson Controls Tyco KT-1, Installation Manual, Page: 40 / 56

Figure 15: KT-1-PCB lock setup
Callout Description
A Door locking device: 12 VDC, 750 mA maximum.
B Connect a 1000 ohm resistor between LK- and +12 V if you do not use a locking
device.
Connecting inputs
The controller can monitor four input points. Each onboard input is supervised with or without end-
of-line (EOL) resistors. The resistors for all inputs are 5.6K ohm, if selected. The maximum distance
of one line is 2,000 ft (600 m) with AWG #22 in a single or double EOL configuration.
1. Connect devices to inputs 1 to 4.
2. Define onboard inputs with none, single, or double EOL resistors.
Note: For UL listed installations, you must use supervised EOL resistors.
Note: Inputs 1 and 2 are automatically reserved for the controlled door. The door contact is
assigned to input 1 and the associated request-to-exit detector is assigned to input 2. You do
not have to follow this convention but it facilitates servicing.
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KT-1 One-Door Controller Installation Guide