Juniper OCX1100, Hardware Manual

Page: 103 / 204

• AC and DC power supplies in the same chassis.
• AC power supplies in DC switch models or DC power supplies in AC switch
models.
•
Power supplies with different airflow labels (
AIR IN (AFI)
and
AIR OUT
(AFO)
) in the same chassis.
•
Power supplies and fan modules with different airflow labels (
AIR IN (AFI)
and
AIR OUT (AFO)
) in the same chassis.
Before you begin connecting DC power to an OCX1100 switch:
• Ensure that you have taken the necessary precautions to prevent electrostatic discharge
(ESD) damage (see
“Prevention of Electrostatic Discharge Damage” on page 167 ).
•
Install the power supply in the chassis. For instructions on installing a DC power supply
in an OCX1100 switch, see
“Installing a DC Power Supply in an OCX1100 Switch” on
page 79 .
Ensure that you have the following parts and tools available:
• A DC power cord (provided)
1.
Attach the grounding strap to your bare wrist and to a site ESD point.
2.
Ensure that the power supplies are fully inserted in the chassis and the latches are
secure. If only one power supply is installed, ensure that a cover panel is installed over
the second power supply slot.
3.
Locate the DC power cord shipped with the switch.
4.
Insert the coupler end of the power cord into the power port of the power supply
module. See
Figure 27 on page 83 .
Figure 27: Connecting a DC Power Cord to a DC Power Supply in an
OCX1100 Switch
5.
If the DC power source outlet has a power switch, set it to the off (
O
) position.
83 Copyright © 2017, Juniper Networks, Inc.
Chapter 11: Connecting the Switch to Power