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Electrical Safety Guidelines and Warnings
When working on equipment powered by electricity, follow the guidelines described
in the following sections:
■ General Electrical Safety Guidelines on page 252
■ AC Power Electrical Safety Guidelines on page 253
■ DC Power Electrical Safety Guidelines on page 254
■ Power Sources for Redundant Power Supplies on page 255
■ DC Power Disconnection Warning on page 255
■ DC Power Grounding Requirements and Warning on page 257
■ DC Power Wiring Sequence Warning on page 257
■ DC Power Wiring Terminations Warning on page 259
■ Grounded Equipment Warning on page 260
■ Warning Statement for Norway and Sweden on page 261
■ In Case of Electrical Accident on page 261
■ Multiple Power Supplies Disconnection Warning on page 262
■ Power Disconnection Warning on page 263
■ TN Power Warning on page 264
■ Telecommunication Line Cord Warning on page 265
General Electrical Safety Guidelines
WARNING: Certain ports on the router 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 router 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.
CAUTION: To comply with intrabuilding lightning and surge requirements,
intrabuilding wiring must be shielded, and the shield for the wiring must be grounded
at both ends.
CAUTION: Before removing or installing components of a router, attach an ESD strap
to an ESD point and place the other end of the strap around your bare wrist. Failure
to use an ESD strap could result in damage to the router.
252 ■ Safety Guidelines and Warnings
J2320, J2350, J4350, and J6350 Services Router Getting Started Guide