CAUTION:
Replace a failed power supply with a new power supply within
five minutes of removal to prevent chassis overheating.
Related
Documentation
TCX1000-RDM20 Power Supply LEDs on page 24
•
•
TCX1000-RDM20 AC Power Cord Specifications on page 51
Connecting DC Power to a TCX1000-RDM20
WARNING:
DC-powered TCX1000-RDM20 models are intended for
installation only in a restricted access location.
Before you begin connecting DC power to the TCX1000-RDM20:
•
Read
“General Electrical Safety Guidelines and Warnings” on page 177
and
“TCX1000-RDM20 DC Power Electrical Safety Guidelines” on page 180
in the
TCX1000
Programmable ROADM Hardware Guide
.
•
Ensure that you have taken the necessary precautions to prevent electrostatic discharge
(ESD) damage (see
“Prevention of Electrostatic Discharge Damage” on page 178
in the
TCX1000 Programmable ROADM Hardware Guide
).
•
Ensure that you have connected the TCX1000-RDM20 chassis to earth ground.
CAUTION:
Before you connect power to the TCX1000-RDM20, a licensed
electrician must attach a cable lug to the grounding and power cables that
you supply. A cable with an incorrectly attached lug can damage the
ROADM (for example, by causing a short circuit).
NOTE:
To meet safety and electromagnetic interference (EMI)
requirements and to ensure proper operation, you must connect the chassis
to earth ground before you connect it to power. For installations that require
a separate grounding conductor to the chassis, use the protective earthing
terminal on the TCX1000-RDM20 chassis to connect to the earth ground
(see
“Connecting the TCX1000-RDM20 Grounding Cable” on page 70
in
the TCX1000 Programmable ROADM Hardware Guide).
CAUTION:
You must ensure that power connections maintain the proper
polarity. The power source cables might be labeled
(+)
and
(–)
to indicate
their polarity. There is no standard color coding for DC power cables. The
color coding used by the external DC power source at your site determines
75
Copyright © 2019, Juniper Networks, Inc.
Chapter 13: Providing Power to the TCX1000-RDM20
Содержание TCX1000-RDM20
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