Juniper EX9214 Hardware Manual
Download Hardware manual of Juniper EX9214 Network Router, Switch for Free or View it Online on All-Guides.com.
Brand: Juniper
Category: Network Router , Switch
Type: Hardware manual for Juniper EX9214
Pages: 372
provide full redundancy. If a power supply in a redundant configuration is removed or
fails, its redundant power supply takes over without interruption. The power supply in
PEM2 serves as redundant power supply to the power supply in slot PEM0 and the
power supply in PEM3 serves as redundant power supply to the power supply in slot
PEM1. See “DC Power Supply in an EX9214 Switch” on page 49.
•
Cooling system—The cooling system in an EX9214 switch consists of two fan trays and
one air filter. Each fan tray contains six fans. Under normal operating conditions, the
fans in the fan trays run at less than full speed. If one of the fans fails, the host
subsystem increases the speed of the remaining fans to provide sufficient cooling for
the switch indefinitely. See “Cooling System and Airflow in an EX9214 Switch” on
page 43.
Related
Documentation
Routing Engine Module in an EX9200 Switch on page 29•
• Switch Fabric Module in an EX9200 Switch on page 33
Craft Interface in an EX9200 Switch
The craft interface enables you to view status and troubleshooting information at a
glance and to perform many system control functions. The craft interface is located on
the front panel of the switch. It contains LEDs and on and off buttons for switch
components, the alarm relay contacts, and an alarm cutoff button.
Figure 7 on page 22 shows the craft interface in an EX9204 switch. Figure 8 on page 23
shows the craft interface in an EX9208 switch. Figure 9 on page 23 shows the craft
interface in an EX9214 switch.
Figure 7: Craft Interface in an EX9204 Switch
g022028
3
1
5
4
8
7
6
2
5—1— Major alarm LEDHost subsystem LEDs
6—2— Alarm cutoff/lamp test buttonFan LEDs
7—3— Alarm relay contactsPower supply LEDs
8—4— LEDs and control buttons for Switch Fabric
and Line cards
Minor alarm LED
NOTE: You can install a line card or an SF module in the multifunctional slot
labeled 1|0 in EX9204 switches. The corresponding LED displays information
depending on the hardware installed in that slot.
Copyright © 2017, Juniper Networks, Inc.22
EX9214 Switch Hardware Guide