Lenovo 46M4002, Руководство по установке и обслуживанию, Страница: 13 / 86

Hardware components
The following sections provide descriptions of the front and rear components on the PDUs.
Front view
The following illustration shows the components and controls on the front of the 1U PDU with 12 C13 outlets
on the front.
5
6
Input power
connector
Power outlets
2
1 3
4
Circuit breakers
LED
Reset button
RS-232
connector
LAN
Ethernet
connector
Environment
sensor connector
The following illustration shows the components and controls on the front of the 1U PDU with 9 C19 outlets
on the front.
LED
Input power
connector
Power outlets
Circuit breakers
Reset button
LAN
RS-232
connector
Ethernet
connector
Environment
sensor connector
Environment sensor connector
You can connect a PDU environment sensor to this connector. The PDU environment sensor monitors
humidity and temperature. The connection of a PDU environment sensor is automatically detected.
LED
The green LED shows the PDU input voltage status. When this LED is lit, the PDU is receiving voltage. If
the input voltage is too low, this LED is flashing.
Circuit breakers
If the load current rating for a power outlet exceeds 20 A, the associated circuit breaker is activated (the
breaker pole pops out), and power to the outlet is turned off automatically. To reset the circuit breaker,
firmly press the breaker pole until it locks into place.
Note: To manually disconnect power to a device that is connected to the PDU, disconnect the device
power cord from the PDU power outlet.
Chapter 1
.
Introduction
5