General Power Warnings And Notes - Alcatel 7750 SR-12 Installation Manual

General Power Warnings and Notes

G P
ENERAL OWER
Danger:
• Only qualified personnel should connect power cables.
• Before working on equipment that is connected to power, remove jewelry, (rings, necklaces,
watches, etc.). When metal objects are in contact with power and ground, serious burns can occur
or the object can be welded to the device.
• Turn off power at the power source before you install or remove power cords.
• You must use cables which meet local electrical code requirements.
• Make your ground connections first.
Warning:
• Do not install equipment that appears to be damaged.
• Blank panels and faceplates are required in all empty card and component slots to prevent excess
dust accumulation and to help control airflow and electromagnetic interference. Faceplate blanks
do not have board components or connector pins.
• Electrostatic discharge (ESD) damage can occur if components are mishandled. Always wear an
ESD-preventive wrist or ankle strap and always connect an ESD strap to the grounding plug on
the front of the chassis.
Notes:
• The 7750 SR-12 is shipped with two factory-installed DC PEMs. Installation instructions are
provided in the chapter. Removal instructions are provided in
Units on page
• For full redundancy, each power supply module should be attached to an independent power
source with a dedicated circuit breaker.
• In the event of a power unit failure (DC PEM or AC rectifier or AC power shelf), the entire
power unit must be replaced. There are no field serviceable parts inside the power modules.
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Appendix B: Field Replaceable
7750 SR-12