Installation Guide

- 6 - Maximal Rack Access Power Controllers (PTC)
WARNING: To reduce the risk of fire or electric shock, do not expose the unit to rain or moisture.
This installation should be made by qualified service personnel and should conform to the National
Electrical Code and all local codes.
The lightning flash with arrow head symbol within an equilateral triangle is intended to alert the user to the
presence of an insulated DANGEROUS VOLTAGE within the products enclosure that may be of sufficient
magnitude to constitute an electric shock.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the literature accompanying the appliance.
CAUTION: To reduce the risk of electric shock do not open enclosure. There are
no user serviceable parts inside. Refer servicing to qualified service personnel.
Power Supply Board Output Voltage Settings:
Maximal3RHD, Maximal3RD,
Maximal33RD Power Supply Boards
Maximal1RHD, Maximal1RD
Power Supply Board
Fig. 1
Fig. 1a
OPEN - 24VDC
CLOSED - 12VDC
OPEN SWITCH
CLOSED SWITCH
SW1
Switch Detail
OPEN - 24VDC
CLOSED - 12VDC