User's Manual

Troubleshootin
g
Power Barrier Board Troubleshooting
Figure 10 Power Barrier Board
Table 2 . Power Barrier Board Diagnostics
Component or
Indicator
Description Diagnosis
D4
LED (green) IS Power
D5
LED (green)
Power
F3 Fuse, 400 mA, 250 V
F4 Fuse, 400 mA, 250 V
If either F3 or F4 is blown, there is no power
to the IS location. D4 is out.
J4
Connector, 24 Vdc power input
J5
Connector, +12 Vdc intrinsically safe power
output
3A2800B 23