4 025-9535L
Safety Summary
• Follow all warnings and instructions marked on the equipment or included in documentation.
• Only technically qualified service personnel are permitted to install or service the equipment.
• Be aware of and avoid contact with areas subject to high voltage or amperage. Because some components
can store dangerous charges even after power is disconnected, always discharge components before
touching.
• Never insert objects of any kind through openings in the equipment. Conductive foreign objects could
produce a short circuit that could cause fire, electrical shock, or equipment damage.
• Remove rings, watches, and other metallic objects from your body before opening equipment. These
could be electrical shock or burn hazards.
• Ensure that a proper electrostatic discharge device is used, to prevent damage to electronic components.
• Do not attempt internal service of equipment unless another person, capable of rendering aid and
resuscitation, is present.
• Do not work near rotating fans unless absolutely necessary. Exercise caution to prevent fans from taking
in foreign objects, including hair, clothing, and loose objects.
• Use care when moving equipment, especially rack-mounted modules, which could become unstable.
Certain items may be heavy. Use proper care when lifting.
Added for Rev K, 6 March 2013
•Updated Series 4000 System Manuals on page 15 for SDC.
•Updated Receiving a Call on page 95 to reorganize screen shots.
•Added Sprint Direct Connect (SDC) Functions on page 100.
•Added Sprint Direct Connect (SDC) Operation on page 105.
•Updated General Glossary on page 150 for SDC.
Added for Rev K.1, 15 April 2013
•Added Ending the Call on page 100 and 109.
Change List for Rev L, December 2015
• Removed references to the obsolete Quad Patch Card option from the description of the
Channel Status Regions, specifically the Channel Patch Status on page 56 and Performing a
Group Patch (Patch Groups) on page 64
Warning! For your safety and the protection of the equipment, observe these
precautions when installing or servicing Zetron equipment:
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