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TPSi1085 User Guide
Rev 11/29
Status LED’s
There are three dual red/green status LED’s located on the bottom side of the board. They provide
signal activity for the power failure, micro-controller (MCU) heartbeat, and output power status.
BOTTOM VIEW
LED3
Power
failure
LED2
MCu
Beat
LED1
Output
Status
Indicators
LED SIGNAL
COLOuR
DESCRIPTION
LED1 - Output Status
Outputs are ON
Outputs are OFF, but should be ON
Outputs are OFF, and should be OFF
LED2 - MCU Heartbeat
MCU is operating, blinking every second (1 Hz)
Power is OFF
LED3 - Power Failure
Input Voltage is within range (+9V to +33V DC)
Input Voltage is out of range
Off
Off