Title: Hardware Installation Guide.pdf
99.7Reader VerificationThe reader performs a self-test when power is first applied to the unit. If power-on test is successfully completed, The reader will turn on both LEDs for approximately one second and sound the buzzer for one short beep. Then the reader is ready for normal operation.If further verification of the reader hardware is needed, the reader may be temporarily set to format T. With this format selected, the reader will read and verify standard ANSI track 2 encoded card. If no read error is detected, the green LED will flash. Otherwise, the red LED will flash and the buzzer will sound two short beeps to indicate error. The LED input can be used to verify the LED function, and the buzzer input for the buzzer function. For MR-20, the reader will echo a key press with a brief flash of both LEDs and a short beep of the buzzer. Reset to the required format for normal operation after test.revision 6 — 463LNL-2010W/2020W/2020W-NDK/NDKV2 Magnetic Card Access Reader99.8Status Indicators