Table 53: N+N Dc Power Calculations For Ex4300 Switch Configurations - Juniper QFabric QFX3000-G Hardware Documentation

Table 53: N+N DC Power Calculations for EX4300 Switch Configurations

Number of
Switch Power
Configuration Supplies
24-port EX4300 1
switch
2
32-port EX4300 1
switch
2
48-port EX4300 1
switch
2
Related
Documentation
Connecting Earth Ground to an EX Series Switch
Copyright © 2018, Juniper Networks, Inc.
NOTE: The DC power supply in the switch does not support Power over
Ethernet (PoE); you can use either an external power injector or an AC power
supply to supply power to PoE devices that you connect to the switch. 32-port
EX4300 switches does not support Power over Ethernet (PoE).
Total Power (in
watts)
550
1100
550
1100
550
1100
Installing a DC Power Supply in an EX4300 Switch
To ensure proper operation and to meet safety and electromagnetic interference (EMI)
requirements, you must connect an EX Series switch to earth ground before you connect
power to the switch. You must use the protective earthing terminal on the switch chassis
to connect the switch to earth ground (see
WARNING: The switch is installed in a restricted-access location. It has a
separate protective earthing terminal on the chassis that must be permanently
connected to earth ground to adequately ground the chassis and protect the
operator from electrical hazards.
CAUTION: Before switch installation begins, ensure that a licensed electrician
has attached an appropriate grounding lug to the grounding cable that you
Usable System Backup Power
Power (in watts) (in watts)
550 0
550 550
550 0
550 550
550 0
550 550
Figure 121 on page
Chapter 7: EX4300 Overview
Base Power (in
watts)
150
150
149
160
175
175
182).
175