The redundant power cable has keyed ends. The key is a plastic tab on the cable connector housing to
ensure correct alignment of the connector. The keyed ends of the 2x7 cable are not symmetrical; one
end of the cable will fit into the EPS-C2 chassis and the other end will fit into the switch.
After the EPS-C2 has been installed in a rack and the power supplies have been installed, do the
following to connect the redundant power cables:
1. Set the connector selection switch, located on the front of the EPS-C2 chassis, for the 2x7 connector.
Figure 211: EPS-C2 Connector Selector Switch
2. Connect the keyed end (for the 2x7 connector cable, the end with the tab offset from the edge of
the connector pins) of the redundant power cord to the EPS-C2 chassis.
See
3. Verify that the side of the connector marked TOP is facing up.
Installing External Power Supplies
Connecting Redundant Power Cables for the EPS-C2
Chassis
ExtremeSwitching Hardware Installation Guide 269