Checking Out and Troubleshooting Your DeltaV System > Checking Out Your System > Step 3. Checking the LED Indicators on Each Device

DI Mass Connection Board LEDs

The following table describes the LEDs on the Series 2 DI Mass Connection Board and the Series 2 Plus DI Mass Connection Board.

Table: DI Mass Connection Board LEDs
Type of LED Status Meaning

Power (green)

On (green)

The mass connection board is receiving power.

Off

The mass connection board is not receiving power.

Channel (yellow for Series 2; orange/brown for Series 2 Plus)

On (yellow for Series 2; orange/brown for Series 2 Plus)

The channel signal is available.

Off

The channel signal is not available.