Connecting a Qscan barcode reader to a Mercury controller

2024-07-02Last updated

In situations where you need to use a Qscan barcode reader to access parking entrances, turnstiles, or gated facilities, you must connect a Qscan barcode reader to a Mercury controller. The Mercury controller ensures that the barcode reader can communicate with Security Center Synergis™ to manage access.

Before you begin

Warning: Qscan barcode readers contain a Class 2 laser. Do not look directly into the laser.

What you should know

This procedure is for system integrators or account administrators who install and configure barcode scanners.

In this scenario, we describe how to connect a Qscan barcode reader to a Mercury EP 1502 controller.

Procedure

Connect your Qscan barcode reader device to the Reader 1 connection block in the Mercury EP 1502 controller.
Figure 1. Figure 1: Qscan barcode reader
Qscan barcode reader.
Figure 2. Figure 2: Mercury EP1502 controller boards
Mercury EP1502 green controller board with wiring loom connections highlighted.
Mercury EP1502 red controller board with wiring loom connections highlighted.
Note: The Mercury controller boards can vary in color depending on when they were manufactured and purchased.
Figure 3. Figure 3: Mercury EP1502 controller board wiring loom connections
Mercury EP1502 controller board with Qscan reader wiring loom connected.

Use the following table to understand how to connect the Qscan barcode reader wires to the terminals on the Mercury controller Reader 1 connector block.

Table 1. Mercury controller and Qscan reader wiring connections
Mercury EP1502: Reader 1 connections Qscan barcode reader: wire colors
GND (Ground) BLUE
DAT D0 (Data/Data 0/TR-) GREEN
CLK D1 ( Clock/Data 1/TR+) WHITE
BZR (Reader Buzzer) Not applicable
LED (Reader LED) ORANGE
V0 (Reader Power) RED

After you finish

Configure Qscan barcode reader to support 40-bit hexadecimal QR codes