CHAPTER 18
Power and Electrical Safety Information•GeneralElectrical Safety Guidelines and Warningsfor EX Series Switches on page 141
•Preventionof Electrostatic Discharge Damageon EX Series Switches on page 142
•ACPower Electrical SafetyGuidelines for EX Series Switches on page 144
•ACPower Disconnection Warning forEX Series Switches on page 145
•TNPower Warning for EX Series Switcheson page 146
•InCase of Electrical Accident: Action to Takeon an EX Series Switch on page 147
General ElectricalSafety Guidelines and Warnings for EX Series Switches
Thistopic applies to hardware devices in the EX Series product family,which includes
switchesand the XRE200 External Routing Engine.
WARNING: Certainports on the device are designed for use as intrabuilding
(within-the-building)interfaces only (Type 2 or Type4 ports as described in
GR-1089-CORE,Issue 4) and require isolationfrom the exposed outside plant
(OSP)cabling. To comply with NEBS requirementsand protect against
lightningsurges and commercial power disturbances, the intrabuildingports
mustnot be metallically connected to interfacesthat connect to the OSP or
itswiring. The intrabuilding ports on the device are suitable for connection
tointrabuilding or unexposed wiring or cabling only. The addition of primary
protectorsis not sufficient protection for connecting these interfaces
metallicallyto OSP wiring.
CAUTION: Beforeremoving or installing components of a device, attachan
ESDstrap to an ESD point and place the other end of the strap around your
barewrist. Failure to use an ESD strap could resultin damage to the switch.
•Installthe device in compliance with the following local, national, and international
electricalcodes:
141Copyright© 2010,Juniper Networks, Inc.