Mircom TX3 Series Installation Manual page 15

Connect the readers to the terminals shown in Figure 7.
Table 1:
Color
Green
Black
White
Blue
Brown
Orange
Red
Card readers supplied by Mircom require a foil shielded multiple conductor
stranded cable, 22-16 AWG. For example, use Belden 9535 or a similar cable.
For other brands of card readers, follow the instructions in the manual for the
card reader.
Note:
2.5.1 Card reader requirements
Card readers must meet the following minimum requirements in order to be
compatible with Mircom's Card Access System:
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TX3-CX-1 Installation Manual
Version 1.1
LT-6618 Copyright 2019
Connections for the TX3-P300-HA and TX3-P500-HA readers
Some card readers treat the green and red LED connections
differently. You might need to switch the green and red LED
connections for the LED to work properly. This note applies to both
single line LED and dual line LED readers.
26 bit standard SIA protocol
Standard Wiegand interface
LED status indicator
Warning or alarm buzzer
12 Volt operation
Maximum distance 152.4 m (500 ft)
Use 20 AWG for 152.4 m (500 ft)
Use 22 AWG for 76.2 m (250 ft)
For other card readers, consult your reader installation manual for
recommended distances and gauges
Terminal
DATA0
GND
DATA1
BEEP
LED (R)
LED (G)
PWR
Installation of TX3-CX-1
15