2
3.3 Wiring
The AY-K6255 is supplied with a 10-conductor 56-cm (22-in.) pigtail
with exposed wires coated with solder.
To connect the reader to the controller:
1. Select the appropriate connections according to Table 1.
2. Prepare the controller cable by cutting its jacket back 3 cm (1¼")
and strip the insulation from the wires about 1.2 cm (½").
3. Splice the reader’s pigtail wires to the corresponding controller
wires and cover each joint with insulating tape.
4. If the tamper output is being utilized, connect the purple wire to
the correct input on the controller.
5. Trim and cover all unused conductors.
• The individual wires from the reader are color coded according the
Wiegand standard.
• When using a separate power supply for the reader, this supply and
that of the controller must have a common ground.
• The reader’s cable shield wire should be preferably attached to an
earth ground, or a signal ground connection at the panel, or the
power supply end of the cable.
Table 1: Wiring
Wire Color Function
Red Power
Black Ground
Green Data 0 / Data
White Data 1 / Clock
Orange Green LED control
Brown Red LED control
Purple Tamper output
Yellow Sabbath (Buzzer)
Blue RS-485 – A*
Gray RS-485 – B*
* RS-485 is used for firmware update.
4. Sabbath Mode
To activate the Sabbath mode, the yellow wire must be connected to
ground.
When in this mode, the reader behaves as follows:
The reader is off for 4 seconds.
While the reader is off, the user can present a card.
The reader wakes up for 200 ms.
To de-activate the Sabbath mode, the yellow wire must be
disconnected.
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