Services Routers Hardware Guide

■ Power Sources for Redundant Power Supplies on page 205
■ DC Power Disconnection Warning on page 205
■ DC Power Grounding Requirements and Warning on page 206
■ DC Power Wiring Sequence Warning on page 207
■ DC Power Wiring Terminations Warning on page 209
■ Grounded Equipment Warning on page 210
■ Warning Statement for Norway and Sweden on page 211
■ In Case of Electrical Accident on page 211
■ Multiple Power Supplies Disconnection Warning on page 211
■ Power Disconnection Warning on page 213
■ TN Power Warning on page 214
■ Telecommunication Line Cord Warning on page 215
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 lightening 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.
■ Install the Services Router in compliance with the following local, national, or
international electrical codes:
■ United States—National Fire Protection Association (NFPA 70), United States
National Electrical Code.
■ Canada—Canadian Electrical Code, Part 1, CSA C22.1.
202 ■ Safety Guidelines and Warnings
JUNOS Software with Enhanced Services Hardware Guide