5019T Flat Panel Industrial Touch Monitor Chapter 2 – Installation
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143627(A)
Power Management
The monitor is based on the VESA DPMS and the DVI DMPM standards. To
activate the monitor's Power Management function, both the video controller
and the computer
must
conform to the VESA DPMS standard and the DVI
DMPM standard.
System Power
It is a good practice to use isolation transformers on the incoming AC power
line to the system. An isolation transformer is especially desirable in cases in
which heavy equipment is likely to introduce noise onto the AC line. The
isolation transformer can also serve as a step-down transformer to reduce the
incoming line voltage to a desired level. The transformer should have a
sufficient power rating (units of volt-amperes) to supply the load adequately.
Proper grounding is essential to all safe electrical installations. Refer to the
relevant federal, state/provincial, and local electric codes, which provide data
such as the size and types of conductors, color codes and connections
necessary for safe grounding of electrical components. The code specifies
that a grounding path must be permanent (no solder), continuous, and able to
safely conduct the ground-fault current in the system with minimal impedance
(minimum wire required is 18 AWG, 1 mm).
Observe the following practices:
•
Separate the power and ground (P. E., or Protective Earth) cable from signal
cables.
•
All electrical racks or chassis and machine elements should be Earth
Grounded in installations where high levels of electrical noise can be
expected. The rack/chassis should be grounded with a ground rod or
attached to a nearby Earth structure such as a steel support beam. Connect
each different apparatus to a single Earth Ground point in a "star"
configuration with low impedance cable. Scrape away paint and other
nonconductive material from the area where a chassis makes contact with
the enclosure.
•
To maintain CE compliance when using the USB touch interface option, a
ground strap cable must be attached to the back of the 5019 chassis to earth-
ground the unit. See the Installation Instructions for directions on how to
attach this cable.
