GE TruSat Technical Reference Manual

Also see for TruSat: User guide

Contents

TruSat Technical Reference Manual3–10Display board connectorSystem board connector (X1)Pin # Signal Name I/O Description1 V_ON I +3 V regulated voltage from DC line2 GND GND Non-isolated ground3BACKLIGHT_CUR I Backlight supply current4 BACKLIGHT_CUR I Backlight supply current5 BACKLIGHT_RET_CUR O Backlight return current6 BACKLIGHT_RET_CUR O Backlight return current7 BATT+ I Battery voltage, isolated by ferrite8 GND GND Non-isolated ground9 __________LCD_EN I Enable signal for Display board regulator10 GND GND Non-isolated ground11 GRN_AC_LED I Supply voltage for DC line power LED12 GND GND Non-isolated ground13SPARE_KEY0 I/O Unused14 GND GND Non-isolated ground15 SPARE_KEY1 I/O Unused16 GND GND Non-isolated ground17 I2C_SDAT I I 2C bus, serial data18 GND GND Non-isolated ground19 I2C_SCLK I I 2C bus, serial clock20 GND GND Non-isolated ground21 ALARM_SW O Alarm button signal, active high22 GND GND Non-isolated ground23ON/OFF O Power button signal, active low24 GND GND Non-isolated ground25 ALARM_LED_RED I Alarm LED, red26 GND GND Non-isolated ground27 ALARM_LED_YEL I Alarm LED, yellow28 GND GND Non-isolated ground29 V_ON I +3 V regulated voltage from DC line30 GND GND Non-isolated ground