EPS-150DC External Power Module (with EPS-T2)
Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide
325
Connecting the DC Wiring Harness to the DC Power Socket on the EPS-150DC
After the DC wiring harness is connected to a permanent DC voltage source by a qualified, licensed
electrician, you can remove, replace, and maintain the EPS-150DC unit without further electrician
assistance.
Always be sure that the DC circuit is de-energized before connecting the DC wiring harness to the DC power socket.
To connect the DC wiring harness to the EPS-150DC unit:
1 Plug the DC cable connector into the DC power supply socket on the rear of the EPS-150DC unit.
The pins must align properly for the cable to completely connect. Do not force the cable into the
socket until the keyway is aligned properly. Refer to Figure 228 for the DC wiring harness connector
and to Figure 229 for the DC power socket location on the rear of the EPS-150DC unit.
Figure 229: Connecting the input cable to the EPS-150DC unit
2 Tighten the retainer nut on the connector until it is finger tight.
Connecting the EPS-150DC to a Switch
If you are connecting the EPS-150DC unit to a Summit X450a-48tDC switch, you must ground the
switch before connecting power. For instructions on grounding the switch, see “Grounding the Summit
X450a-48tDC Switch” on page 287.
Always be sure that the DC circuit is de-energized before connecting the EPS-150DC to the switch.
To connect the EPS-150DC to a switch:
1 Connect the keyed end of the EPS-150DC redundant power cord to the power supply unit. The key
is a plastic tab on the connector housing that fits into the EPS-150DC unit to ensure correct
alignment of the connector.
See Figure 230 for details on the connector key, and see Figure 231 to locate the connectors on the
EPS-150DC unit and on the switch.
2 Connect the other end of the redundant power cord to the Extreme switch.
The connector fits the slot in only one direction.
EPS-15DC_001B
EPS-150DC
DC wiring
harness
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