Figure 13 Tx3-Usb-Ad Board Location - Mircom TX3 Series Installation Manual

4.2.3 TX3-USB-AD Kit
The TX3-USB-AD Kit converts RS-485 signals to USB.
To install the TX3-USB-AD Module
1.
2.
3.
4.
Note:
Figure 13. TX3-USB-AD board location
UL Listed TX3-CX Card Access System Installation Manual
Version 2
LT-6906 Copyright 2019
Connect the ribbon cable to the P3 connector on the card access controller.
Place the module over the connector position with the four spacers.
Align and fasten into place with the four screws.
Observe the correct polarity and connect the wires from the RS-485
connector on the TX3-USB-AD module to the RS-485 to USB adapter
(GC-AT-820) as shown.
Use 22 AWG twisted shielded pair for the RS-485 wire.
Card Access System
Controller Board
Setup of the Card Access Controller
GC-AT-820
RS-485 to
USB Adapter
+ − S
Maximum 4000 feet
+ S −
Module
Mounting Holes
OFF ON
ON/OFF
SWITCH
37