Juniper Networks EX4200, EX3200 manual Power and Electrical Safety Information

Chapter 20

Power and Electrical Safety Information

■General Electrical Safety Guidelines and Warnings for EX Series Switches on page 235

■Prevention of Electrostatic Discharge Damage on EX Series Switches on page 236

■AC Power Electrical Safety Guidelines for EX Series Switches on page 238

■AC Power Disconnection Warning for EX Series Switches on page 239

■Multiple Power Supplies Disconnection Warning for EX Series Switches on page 240

■Power Sources for Redundant Power Supplies Warning for EX4200 Switches on page 240

■DC Power Electrical Safety Guidelines for EX Series Switches on page 241

■DC Power Disconnection Warning for EX Series Switches on page 242

■DC Power Grounding Requirements and Warning for EX Series Switches on page 244

■DC Power Wiring Sequence Warning for EX Series Switches on page 245

■DC Power Wiring Terminations Warning for EX Series Switches on page 246

■TN Power Warning for EX Series Switches on page 247

■In Case of Electrical Accident: Action to Take on an EX Series Switch on page 248

General Electrical Safety Guidelines and Warnings for EX Series Switches

WARNING: Certain ports on the switch are designed for use as intrabuilding (within-the-building) interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE, Issue 4) and require isolation from the exposed outside plant (OSP) cabling. To comply with NEBS requirements and protect against lightning surges and commercial power disturbances, the intrabuilding ports must not be metallically connected to interfaces that connect to the OSP or its wiring. The intrabuilding ports on the switch are suitable for connection to intrabuilding or unexposed wiring or cabling only. The addition of primary protectors is not sufficient protection for connecting these interfaces metallically to OSP wiring.

General Electrical Safety Guidelines and Warnings for EX Series Switches ■ 235