Warnings and Notes
68 7705 SAR-M Chassis Installation Guide
Warnings and Notes
Danger:
• Installation and servicing must be done only by trained service personnel familiar with
potential electrical, mechanical, and laser radiation hazards.
• The 7705 SAR-M needs a disconnect device on each power feed (such as an external
circuit breaker, switch, or fuse) to disconnect DC power from it. Disconnect both A and
B feeds before servicing.
• The 7705 SAR-M chassis and equipment rack must be properly grounded. Chassis
ground cables are not included. Lack of proper grounding (earthing) of the equipment
may result in a safety hazard and excessive electromagnetic emissions.
• Before making the chassis ground connection, ensure that all power is OFF from the
DC circuit or AC power source. To switch the DC power OFF, locate the circuit breaker
on the panel board that services the DC circuit and switch the circuit breaker to the OFF
position. For extra safety, tape the handle of the circuit breaker in the OFF position. To
switch the AC power off, unplug the AC cord from the AC outlet.
• Be aware of all operating equipment in the area of the 7705 SAR-M installation. Make
safe any exposed power equipment, such as breaker panel bus bars or power
connectors on any nearby equipment. Either shut off the power, if possible, or install
safety guards or mats over exposed power points and cables. Tools used for power
connections should be insulated in an appropriate manner for the task.
• The 7705 SAR-M uses a fiber-optic communications method and is a Class 1 laser
product. Only trained service personnel familiar with laser radiation hazards should
install or remove fiber-optic cables and modules in this system.
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