Connect each power/controller carrier to any adjacent carriers by
sliding the 48-pin connectors on the sides of the carriers together.
Turn the screws counter-clockwise on the power/controller carrier
to disengage the latch. Place the carrier on the rail and tighten the screws
clockwise to latch.
Note
The middle two screws are for G-rail mounting and the upper and
lower screws are for T-rail mounting.