Step 1: Wiring
Wire the E200 series QR scanner using the included adapter cable, as shown below.
- The green terminal block has pins labeled 1 to 4, right to left (when facing the front of the connector).
Note: This is the opposite of many other connectors—double-check orientation before wiring.
| Pin | Wire Color | Function |
|---|---|---|
| 1 | Black | Negative / Ground |
| 2 | Red | Positive (V+) |
| 3 | Yellow (white stripe) | RS-485 TRXN |
| 4 | Blue (white stripe) | RS-485 TRXP |
- Connect the white 4-pin pin-and-socket connector to the CONport on the bottom of the QR scanner.
- This connector is polarized (with a groove), so it only fits in one direction.
Step 2: Enable QR Reader
In the BioStar Air admin portal (web or app), navigate to:
Device Management > Devices > click or tap the device with the E200 QR scanner connected.
- Under Details, find the QR Reader option.
- Click or tap the toggle switch to turn it on. (Refer to the image on the right.)
Note: Enabling the QR reader disables the use of other RS-485-connected devices (e.g., SIO2) on the same reader.
Step 3: Configure the QR Scanner
By default, the E200 QR scanner is set to a baud rate of 115,200.
To use it with Suprema readers, you must change the baud rate to 9,600.
- After connecting the QR scanner to the reader, scan the barcode below to apply the new baud rate.
That’s it!
As long as your wiring is correct and your Suprema reader has an active network connection, you’ll be able to use dynamic QR credentials provisioned through BioStar Air.