Power Modules; Warnings And Notes - Alcatel 7750 SR-12 Installation Manual

P M
OWER ODULES
This section covers:
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W
ARNINGS AND
Danger:
• Only trained and qualified personnel should install or replace this equipment and connect the
power cables.
• Even though the power supply modules are hot swappable, for extra safety, you can turn off power
at the power source and disconnect and unplug the power cables before you remove and replace a
power supply module.
• You must use power cables which meet local electrical code requirements.
Warning:
• Do not install equipment that appears to be damaged.
• Blank panels and faceplates are required in all empty 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.
• The 7750 SR-12 router with DC PEMs should be installed only in restricted access areas (such as
dedicated equipment rooms and electrical closets) in accordance with Articles 110-26 and 110-27
of the most recent National Electrical Code ANSI/NFPA 70.
• 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.
7750 SR-12
Removing a DC PEM on page 139
Replacing a DC PEM on page 141
AC Power Shelves and Rectifiers on page 143
Disconnecting AC Power Cables on page 143
N
OTES
Appendix B: Field Replaceable Units
Page 137