Extreme Networks Summit X250e-24t Hardware Installation Manual page 139

WARNING!
Always be sure that the DC circuit is de-energized before connecting the EPS-150DC to the switch.
One end of the EPS-150DC cord has a keyed connector to ensure correct alignment of the connector
(Figure 107). The key is a plastic tab on the connector housing that fits into the EPS-150DC unit to
ensure correct alignment of the connector.
Figure 107: EPS-150DC Redundant Power Cord with Connector Key
To connect the EPS-150DC to a switch:
1 Verify that the DC power is turned off at the source.
2 Identify the keyed end of the redundant power cable.
3 Holding the keyed connector so that the side labeled "Top" is facing up, connect the EPS-150DC
redundant power cable to the power supply unit (see
4 Align and tighten the connector retaining screws to secure the cable connector to the power supply
unit.
5 Connect the other end of the redundant power cord to the Extreme switch.
The connector fits the slot in only one direction.
6 Align and tighten the captive retaining screws to secure the cable connector to the switch.
Figure 108: Connecting an EPS-150DC Unit to a Switch
Extreme switch
EPS-150DC
Redundant
power cord
Summit Family Switches Hardware Installation Guide
Keyed end of
redundant
power cord Slot for key
DC wiring
harness
Collin's
ES4K027
XM_055
Figure 108).
-48 V
2 . 0 A M a x
To DC Power
Source
To DC
Power
DC wiring
Source
harness
EPS-150DC_002B
139