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LTRx-512 Installation and User’s Guide
6
10. Remove the two screws from the side of the display unit
11. Using these same screws, attach an “L” bracket (or ear)
12. Repeat to attach the other ear
13. Mount the unit in the rack
14. Follow the wiring steps in the next chapter before attaching the box cover
15. Attach the furnished cover to the power supply using four 6-32 screws (two of these screws
you removed from the display unit)
Hidden Power Supply Mount
You can hide the power supply portion of the Master above a dropped ceiling, under a raised floor
or behind a wall, up to 8 feet away from the display unit. This allows you to hide the cables and
gives a more pleasing look to your Master. To mount the Master this way, you must purchase the
8-foot connection cable
To hide the power supply
Place the Master on its back with the display unit facing up and the keypad to the right
Remove the two screws from just above the display unit
Lift the display unit up and away from you. Note that two rivets at the bottom of the cover prevent you
from lifting it straight up
Unplug the ribbon power cable from the back of the display unit
Set the display unit aside
Detach the display unit from the power supply cover by removing the 4 screws on the back of the
display unit (IMPORTANT: These screws are the correct length so they do not interfere with the circuit
board inside the display unit. Using any other screws voids any warranty)
Unplug the ribbon cable from the power supply board
Remove a knockout in the power supply
Pass the end of the 8-foot connection cable with the Ground wire through the opening using proper
strain relief hardware.
Connect the communication cable. When properly installed, the cable will face away from the
transformer
8 foot cable
(optional)
Power Supply Box
Display Unit