NetApp E2600, Installation Manual

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E2600 Controller-Drive Tray Installation Guide 93
Step 9 - Connecting the Power Cords
The E2600 controller-drive tray, the DE1600 drive tray, and the DE5600 drive tray can have either standard power
connections to an AC power source or the optional connections to a DC power source (–48 VDC).
The E2660 controller-drive tray and the DE6600 drive tray must use standard power connections to an AC power
source.
NOTE Make sure that you do not turn on the power to the controller-drive tray or the connected drive trays until
this documentation instructs you to do so. For the correct procedure for turning on the power, see “ Turning on the
Power and Checking for Problems in a E2600 Controller-Drive Tray Configuration ” on page 95 .
Things to Know – AC Power Cords
„
For each AC power connector on the drive tray, make sure that you use a separate power source in the cabinet.
Connecting to independent power sources maintains power redundancy.
„
To ensure proper cooling, do not operate a drive tray with one of its power supplies removed.
„
You can use the power cords shipped with the controller-drive tray with typical outlets used in the destination
country, such as a wall receptacle or an uninterruptible power supply (UPS). These power cords, however, are
not intended for use in most EIA-compliant cabinets.
Things to Know – DC Power Cords
If your controller-drive trays have the DC power option installed, review the following information.
Figure 88 DC Power Cable
1. Supply (negative), brown wire, –48 VDC
2. Return (positive), blue wire
3. Ground, green/yellow wire
4. DC power connector
„
Each power-fan canister has two DC power connectors. Be sure to use a separate power source for each
power-fan canister in the drive tray to maintain power redundancy. You may, optionally, connect each DC
power connector on the same power-fan canister to a different source for additional redundancy.
„
A two-pole 30-amp circuit breaker is required between the DC power source and the drive tray for over-current
and short-circuit protection.
WARNING (W14) Risk of bodily injury – A qualified service person is required to make the DC power
connection according to NEC and CEC guidelines.