Figure 71: Flip The Enable Switch To The On Position - Juniper EX8208 Complete Hardware Manual

Copyright © 2010, Juniper Networks, Inc.
For connecting a management device to the console port, see "Connecting an EX Series
Switch to a Management Console" on page 178. For connecting a management device
to the management port, see "Connecting an EX Series Switch to a Network for
Out-of-Band Management" on page 183.
To power on the switch:
Attach the ESD grounding strap to your bare wrist and connect the strap to the ESD
1.
point on the chassis.
Connect the external management device to the master SRE or master RE module's
2.
management (MGMT) port.
Turn on the power to the external management device.
3.
Ensure that the power supplies are fully inserted in the chassis and that each of their
4.
handles is flush against the faceplate.
Ensure that the source power cord is inserted securely into the appliance inlet for each
5.
AC power supply.
If you are using DC power supplies, ensure that the source power cables are connected
to the appropriate terminal: the positive (+) source cable to the return terminal (RTN)
and the negative (-) source cable to the input terminal (-48 VDC).
Switch on the site circuit breakers.
6.
Flip a power supply's Enable
7.
Observe the power supply faceplate LEDs. If the power supply is installed correctly
and functioning normally, the
and remain constantly lit. The

Figure 71: Flip the Enable Switch to the ON position

Repeat Step 7 for the remaining power supplies installed in the switch.
8.
On the external management device, monitor the startup process to ensure that the
9.
system boots properly.
switch to the on position (ON). See Figure 71 on page 177.
/ and
INPUT OK IN OK OUTPUT OK
LED does not light.
FAIL
Chapter 10: Connecting the Switch
/ LEDs light
OUT OK
177