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2.4
INSTALLATION
2.4.1
RACK MOUNTING
The unit is shipped with four feet attached to bottom of the unit which must be removed prior to
installation (see Figure 1-2). The BOP is designed to be rack mounted in a standard 19-inch
wide rack using the mounting ears (supplied) attached to the front panel (see Figure 1-2). Allow
a minimum of 7/8 in. (22.2 mm) above and below the unit to permit air intake necessary for
proper cooling of the unit. CAUTION: THE RACK MUST PROVIDE SUPPORT AT THE REAR
(WITHIN 6 INCHES OF THE REAR PANEL). OPTIONAL SLIDES CAN ALSO BE USED (SEE
PAR. 2.4.2).
2.4.2
SLIDE INSTALLATION
Optional slides are available for rack mounting (see Table 1-5 and Figure 1-2).
2.5
WIRING INSTRUCTIONS
Interconnections between an a-c power source and a power supply, and between the power
supply and its load are as critical as the interface between other types of electronic equipment.
If optimum performance is expected, certain rules for the interconnection of source, power sup-
ply and load must be observed by the user. These rules are described in detail in the following
paragraphs.
CAUTION: WHEN WORKING WITH ACTIVE LOADS, THE VOLTAGE OR CURRENT OF
2.5.1
SAFETY GROUNDING
Local, national and international safety rules dictate the grounding of the metal cover and case
of any instrument connected to the a-c power source, when such grounding is an intrinsic part of
the safety aspect of the instrument. The ground terminal of the source power connector (Figure
2-1) is connected to the chassis and the instructions below suggest wiring methods which com-
ply with these safety requirements; however, in the event that the specific installation for the
power system is different from the recommended wiring, it is the customer's responsibility to
ensure that all applicable electric codes for safety grounding requirements are met. As a pre-
caution, always connect the stud marked
2.5.2
SOURCE POWER CONNECTIONS
Source power is connected to the power supply via three-wire input power using the source
power mating connector supplied (see Table 1-3). See Table 1-2 for source power specifica-
tions. This power supply operates from single phase a-c mains power over the specified voltage
and frequency ranges (Table 1-2) without any need for range selection.
2.5.3
D-C OUTPUT GROUNDING
Connections between the power supply and the load and sensing connections may, despite all
precautions such as shielding, twisting of wire pairs, etc., be influenced by radiated noise, or
"noise pick-up". To minimize the effects of this radiated noise the user should consider ground-
ing one side of the power supply/load circuit. The success of d-c grounding requires careful
analysis of each specific application, however, this recommendation can only serve as a general
guideline.
2-8
THE ACTIVE LOAD MUST NOT EXCEED THE MAXIMUM VOLTAGE OR CUR-
RENT RATING OF THE BOP. OTHERWISE THE OVERVOLTAGE OR OVER-
CURRENT PROTECTION WILL SHUT DOWN THE POWER SUPPLY.
at the rear panel to proper earth ground.
BOP HIPWR 080709
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