Technical data

Chapter 8: Specifications of the E5500 Controller-Drive Tray 67
Two (or, optionally, four) DC power connector cables are provided with each
controller-drive tray. Two DC power connectors are on the two DC power supplies on
the rear of each controller-drive tray if additional redundancy is required.
NOTE It is not mandatory that you connect the second DC power connection on the
DC power supplies of the controller-drive tray. The second DC power connection is
provided for additional redundancy only and can be connected to a second DC power
bus.