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Status LEDs D68-D72, D84-D86
The status LEDs indicate the different power states of the conga-TEVAL3/COMe 3.1. You can connect an external power LED to pin header
X58.
Table 10
Power LEDs Status
LED Status Description
D84
On
The green LED indicates the signal SUS_S3# is high.
D85
On
The green LED indicates the signal SUS_S4# is high.
D86
On
The green LED indicates the signal SUS_S5# is high.
D70
On
The green LED indicates that 12 V main power is present.
D71
On
The green LED indicates that 5 V main power is present.
D72
On
The green LED indicates that 3.3 V main power is present.
D69
On
The yellow LED indicates that 5V standby power is provided to COM Express module.
If only D69 lights, it indicates that the ATX power supply is mechanically switched on and only 5 V standby
power is applied to the module.
D68
On
The yellow LED indicates that 3.3 V standby power is present.
Table 11
X58 - External Power LED
Pin
Signal
1
LED_PWR (serial resistor 330ohm to +5V)
2
GND
Connector Type
X58: 2.54 mm, 2-pin socket
4.3.2
PWR_OK Signal
The PWR_OK is a high-active signal from the main power supply to the module and it indicates whether the power rails are stable within
specified ranges. Use jumper JP9 to configure the PWR_OK signal.
Copyright © 2025 congatec GmbH
TEVA31_m001
X58
D84
D85
1
D86
2
D70
D71
D72
D69
D68
25/62
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