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Safety Considerations and Warranty

iii

Indicates Alternating current.

Indicates Direct current.

Rack Mounting

The Model 5071A Unit is designed for mounting in a standard 19-inch (48.26 cm) rack. Follow the

rack manufacturer's instructions for mounting the Model 5071A Unit while observing the following

guidelines:

 Elevated Operating Temperature: If the Model 5071A Unit is installed in a closed or

multi-unit rack assembly, the ambient temperature of the rack environment may be greater

than the Model 5071A Unit's Maximum Operating Temperature of 50°C/122°F. Install

the Model 5071A Unit in an environment that is compatible with the Model 5071A Unit 's

operating temperature range, which is 0 °C to 50 °C, or 32 °F to 122 °F

 Mechanical Loading: Mount the Model 5071A Unit so as to avoid uneven mechanical

loading that could cause hazardous conditions.

 Circuit Overloading: Observe the power ratings on the Model 5071A Unit 's nameplate

and the additional load the Model 5071A Unit may place on the supply circuit.

Overloading the supply circuit may adversely affect the supply wiring and over-current

protection.

 Reliable Earthing: Maintain reliable earthing (grounding) of rack mounted equipment.

Pay particular attention to supply connections other than direct connections to the branch

circuit (e.g., use of power strips).

CAUTION ________________

Damage to equipment, or incorrect measurement data, may result from failure to heed a caution.

Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and

met.

Whenever it is likely that the protection has been impaired, the instrument must be made

inoperative and be secured against any unintended operation.

If this instrument is to be energized via an autotransformer (for voltage reduction) make sure the

common terminal is connected to the earthed pole terminal (neutral) of the power source.

Instructions for adjustments while covers are removed and for servicing are for use by service-

trained personnel only. To avoid dangerous electric shock, do not perform such adjustments or

servicing unless qualified to do so.

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Symmetricom 5071A Assembly And Service Manual

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