Ac Power Supply Description - Juniper EX8208 Hardware Manual

EX8200 switches can use either AC or DC power supplies. This topic describes the AC power supplies in
EX8200 switches.

AC Power Supply Description

The AC power supplies in EX8200 switches are hot-insertable and hot-removable field-replaceable units
(FRUs).
You can install up to six AC power supplies in an EX8200 switch. Power supplies are installed at the bottom
of the chassis in slots PSU 0 through PSU 5 (left to right). All power supplies are accessible from the front
of the chassis.
WARNING:
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:
attached an appropriate grounding lug to the grounding cable that you supply. Using
a grounding cable with an incorrectly attached lug can damage the switch.
NOTE: All base configuration EX8200 switches are shipped with two power supplies. Cover
panels are installed over the remaining four power supply slots. Additional power supplies can
be added to base configuration switches as necessary.
For details about different switch configurations, see
or EX8216 Switch Configurations.
Each AC power supply weighs approximately 7 lb (3.2 kg) and has an independent 16 A rated AC inlet on
the faceplate. Each inlet requires a dedicated AC power feed. Each AC power supply has a switch labeled
ENABLE, a fan, and three LEDs on the faceplate that indicate the status of the power supply. See
Figure 10 on page 58.
The switch is installed in a restricted-access location. It has a separate
Before switch installation begins, ensure that a licensed electrician has
"EX8208 Switch Configurations" on page 27
57