Juniper JSA3500, Руководство по оборудованию

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•
Ensure that you have taken the necessary precautions to prevent ESD damage.
• Ensure that you have connected the JSA appliance chassis to earth ground.
Required tools and parts:
•
DC power source cables (12-14 AWG) with ends of the wire stripped ~12mm and twisted
• Phillips (+) screwdriver, number 1
CAUTION: Before you connect power to the JSA appliance, attach ground
wire in one of the below configurations to meet the safety requirements and
to ensure proper operation:
•
Both power supply ground terminals
• One or both of the chassis ground terminal(s) located to the left of the
power supply modules
•
Both power supply ground terminals and one or both chassis ground
terminals
You connect DC source power to the JSA appliance by attaching power cables from the
external DC power sources to the terminal studs on the DC power feed faceplates.
WARNING: DC-powered JSA 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.
To connect the DC source power to the JSA appliance:
1.
Ensure that the input circuit breaker is open so that the voltage across the DC power
source cable leads is 0 V, so that the cable leads will not become active while you are
connecting DC power.
2.
Connect the stripped and twisted wires to wire clamps under DC terminal screws as
shown in
Figure 17 on page 100 .
99 Copyright © 2018, Juniper Networks, Inc.
Chapter 16: Connecting the JSA Appliance