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. This 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
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: Qscan barcode reader
Figure 2: Mercury EP1502 controller boards
NOTE: The Mercury controller boards can vary in color depending on when they were
manufactured and purchased.
Figure 3: Mercury EP1502 controller board wiring loom connections
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.
| 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 |