Power Supplies - Juniper EX8208 Hardware Manual

Power Supplies

Power supplies for the EX8208 switch are fully redundant, load-sharing, and hot-removable and
hot-insertable (FRUs. Each EX8208 switch chassis can hold up to six AC or DC power supplies.
Table 4 on page 26 shows the details of the power supplies available for EX8208 switches.
Table 4: Power Supplies Supported on EX8208 Switches
Power Supply
2000 W AC
3000 W AC
2000 W DC
Only two AC power supplies (provided) are required to power on the base AC configuration switch. The
redundant AC configuration ships with six AC power supplies to provide the capacity to power the system
using N+1 or N+N power redundancy. See
"EX8208 Switch Configurations" on page
The redundant DC configuration ships with four DC power supplies. The dual inputs of the DC supplies
provide direct support for N+N power redundancy. The redundant configuration also provides sufficient
capacity for N+1 redundancy in most configurations; if necessary, up to two additional DC supplies can
be added to the system. See
Configurations" on page
CAUTION:
is not supported.
SEE ALSO
EX8200 Virtual Chassis Overview
Input Voltage
Low-voltage line (100-120 VAC)
High-voltage line (200-240 VAC)
Low-voltage line (100-120 VAC)
High-voltage line (200-240 VAC)
-40 VDC through -72VDC
"AC Power Supply in an EX8200 Switch" on page 56
27.
"DC Power Supply in an EX8200 Switch" on page 70
27.
Mixing different types of power supplies (AC and DC) in the same chassis
Output Power
1200 W
2000 W
Not supported
3000 W
2000 W
and
and "EX8208 Switch
26