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Figure 72. DC power testing points (red arrow)
Step 3
Ensure field DC cable ends are taped over, capped, or inserted into the relevant SUM.
Measure and verify the DP4 DC input voltage is 24 VDC by measuring the input points
at the bottom of the board. Once verified, turn the DP 's power switch to the ON
position. Verify the AC/DC power LED is illuminated.
Measure and verify the DP4 DC output voltage is 24 VDC on screw terminals 1A/B and
2A/B.
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Troubleshooting
