N+n redundancy configuration of ac power supplies, Configurations using 3000 w ac power supplies, Configurations using 2000 w ac power supplies – Juniper Networks EX8208 User Manual
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Table 18: N+1 Power Redundancy Configurations for Different EX8208
Switch Configurations Using 3000 W AC Power Supplies
Power Supplies
Needed for N+1
Power Supplies
Needed (N)
Input Voltage
Switch
Configuration
2
1
High-voltage line
(200–240 VAC)
Base
3
2
High-voltage line
(200–240 VAC)
Fully loaded with
8-port SFP+ line
cards
Table 19: N+1 Power Redundancy Configurations for Different EX8216
Switch Configurations Using 2000 W AC Power Supplies
Power Supplies
Needed for N+1
Power Supplies
Needed (N)
Input Voltage
Switch
Configuration
3
2
High-voltage line
(200–240 VAC)
Base
3
2
Low-voltage line
(100–120 VAC)
6
5
High-voltage line
(200–240 VAC)
Fully loaded with
8-port SFP+ line
cards
Not supported
Not supported
Low-voltage line
(100–120 VAC)
Table 20: N+1 Power Redundancy Configurations for Different EX8216
Switch Configurations Using 3000 W AC Power Supplies
Power Supplies
Needed for N+1
Power Supplies
Needed (N)
Input Voltage
Switch
Configuration
2
1
High-voltage line
(200–240 VAC)
Base
5
4
High-voltage line
(200–240 VAC)
Fully loaded with
8-port SFP+ line
cards
N+N Redundancy Configuration of AC Power Supplies
You can optionally configure your switch for N+N redundancy, in which N power supplies
can be removed or fail and the remaining N power supplies continue to supply power for
the switch without interruption. A common application for N+N redundancy is to have a
dual power feed for AC power supplies.
How many power supplies you require for N+N redundancy can depend on which Junos
OS Release your switch is running:
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Chapter 2: Component Descriptions