Connecting Dc Power To The Junos Space Appliance - Juniper Junos Space JA2500 Hardware Manual

Connecting DC Power to the Junos Space Appliance

Copyright © 2014, Juniper Networks, Inc.
Preventing Electrostatic Discharge Damage on page 140
Replacing the AC Power Supply Module on a Junos Space Appliance on page 91
This topic applies to the following Junos Space Appliances: JA1500 and JA2500.
Before connecting the Junos Space Appliance to a DC power source, do the following:
Ensure that you have read the guidelines in the
on page 144 topic.
Ensure that you have taken the necessary precautions to prevent ESD damage.
Ensure that you have grounded the appliance by connecting the DC power supply
grounding cable to earth ground.
CAUTION: Before you connect power to the Junos Space Appliance, in
order to meet the safety requirements and ensure proper operation, get a
licensed electrician to attach a cable lug to the grounding and power cables
that you supply. A cable with an incorrectly attached lug can damage the
appliance (for example, by causing a short circuit).
Ensure that you have the following parts and tools available:
(Optional) Electrostatic discharge (ESD) grounding strap
DC power source cables (12-14 AWG) with ends of the wire stripped ~12mm and
twisted
Phillips (+) screwdriver, number 1
You connect DC source power to the appliance by attaching power cables from external
DC power sources to the terminal studs on the DC power supply module faceplates.
WARNING: DC-powered Junos Space Appliances are intended for installation
only in restricted access locations.
WARNING: Before you perform the following procedure, ensure that power
is removed from the DC circuit. To ensure that all power is off, locate the
circuit breaker on the panel board that services the DC circuit, switch the
circuit breaker to the OFF position, and tape the switch handle of the circuit
breaker in the OFF position.
Chapter 6: Connecting the Appliance
"DC Power Electrical Safety Guidelines"
39