LED and Jumper Definitions

(See Neutron controller diagram for location of the LEDs and jumper)

• J2 (TAMPER): Provides a normally-closed tamper input to the controller.
• D15 (PWR FLT): Indicates a short on the controller or if the power lines are reversed.
• D20 (PWR): Solid green indicates when the controller is powered-up.
• D19 (3.3V): Solid green indicates the output of the controller's onboard DC converter.
• D14 (TAMP): Solid red to indicate when the controller tamper input is active.
• D2 (BUSY): Solid red when the controller is being reset or during firmware upgrade.
• D24 (RS485): Quickly flashing amber RS-485 reader communication).
• D25 (O/C): Solid red to indicate if there is over-current on the controller's reader port.
• D22 (FLSH): Solid red to indicate when the flash memory chip is active.
• D8 (RELY): Solid red to indicate when the controller strike relay is active.
• D1 (ADDR): Controller address number (i.e blinks 3 times for address #3).
• D6 (ON): Solid green to indicate the controller is online.
• D7 (OFF): Solid red to indicate the controller is offline.