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Installation
This section provides installation instructions for the 9611B Switching and Distribution Unit.
Please review the installation warnings section that follows below.
Installation Instructions
ReceivingInspection
Upon receiving the 9611B, make a thorough inspection of the instrument and its accessories. Any
damage or loss of equipment should be reported immediately to the responsible carrier. If no dam-
age is found, installation can begin.
Rack Mounting Instructions
This unit is designed for mounting in a standard 19-inch (48.26 cm) rack.
Follow the rack manufacturer's instructions for mounting this unit while observing the following guide-
lines:
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Elevated Operating Temperature: If the unit is installed in a closed or multi-unit rack assembly,
the ambient temperature of the rack environment may be greater than the unit's Maximum
Operating Temperature of 50°C/122°F. Install the unit in an environment that is compatible
with the unit's operating temperature range, which is 0 °C to 50 °C, or 32 °F to 122 °F.
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Mechanical Loading: Mount the equipment so as to avoid uneven mechanical loading that
could cause hazardous conditions.
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Circuit Overloading: Observe the power ratings on the unit's nameplate and the additional load
the unit may place on the supply circuit. Overloading the supply circuit may adversely affect the
supply wiring and over-current protection.
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Reliable Earthing: Maintain reliable earthing (grounding) of rack mounted equipment. Pay par-
ticular attention to supply connections other than direct connections to the branch circuit (e.g.,
use of power strips).
MakingConnections
Where appropriate, connect the following cables to the 9611B
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Inputs A and B
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Outputs 1 through 12
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Alarm inputs A and B
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Alarm Output
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AC power (Don't connect to the AC until turning on the instrument)
9611B_UserGuide_RevA.pdf
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