System installation – Artesyn Centellis 2000 Shelf Release 3.0 Installation and Use (May 2014) User Manual
Page 96

System Installation
Centellis 2000 Shelf Release 3.0 Installation and Use (6806800L99G)
96
13.Fasten the screws on both sides of the pluggable screw terminals.
14.Turn on the external feed power.
15.Check the PEM LEDs and take the appropriate actions as listed in the table below.
16.Push the breaker to the ON position.
The BP LEDs (on the right) indicate that power is available to the backplane from
the feed.
PEM LEDs
Status
Reverse LED (red) on
In LED (green) off
Do not switch on the breaker while the Reverse LED is on.
Reason: The power connected is reversed.
Action: Turn off the feed power and attach the power cables at the
power connector with the correct orientation (-48 V, Return).
Reverse LED (red) off
In LED (green) off
Do not switch on the breaker while the In LED stays off.
For possible reasons and solutions, see
Reverse LED (red) off
In LED (green) on
The power is connected correctly. You may switch on the breaker now.