AS4002 EAS Antennas

A91 board commissioning

For the documented A91 controller, use the network indicator to check connection and the running indicator to identify automatic adjustment. The channel indicators distinguish tag signal, noise and alarm status.

The AUTO function adjusts synchronization and threshold. Choose the transmit/receive mode and check each channel noise level for the site before final fixing.

Use the compatible local setup application for the supplied controller. Confirm the actual board and firmware before following its detailed setup sequence.

Illustrated controller menu

For the controller interface shown below, 0097 displays the software version, 0099 clears the alarm count, and 0101 opens system debugging. The CON command saves parameters. Match the supplied controller and firmware before using this menu.

A91 channel and interference controls

The A91 reference separates each channel's signal reading from its environmental-noise reading. Use those readings to locate the affected channel before adjusting gain, hardware range or the alarm threshold.

Operating modes can change which channels transmit or receive and can suppress an outer detection side. Stronger interference rejection can slow tag response; recheck real tag passage after a mode or synchronization change and confirm the setting with CON to save it.