Instruction manual

4. Installation of the Components
117
4.5 Connecting and Disconnecting a Power Supply
Cable to and from the Main Device
This section describes how to connect and disconnect a power supply cable to and from the main device.
For the AC power and AC (PoE) models and the power redundancy model with the AC power supplies, use an AC
power supply cable.
For the DC power model and the power redundancy model with DC power supplies, use the DC power supply cable.
Follow the procedures below to connect or disconnect the power supply cable.
4.5.1 AC Power Supply Cable (AC Power and AC (PoE) Models)
Make sure to connect the device to a grounded outlet. Not connecting the grounded
outlet to the device can cause electric shocks, as well as a cause of failure due to
electrical noise.
The figures below show the AC power model with the external power unit (EPU). The same
procedures are applicable to the AC (PoE) model with the EPUs.
When the device is mounted in a rack, fasten the power supply cable with the cable holder of
the rack in order to avoid stress on the cable connection part.