Hardware Components; Front View - Lenovo 46M4002 Installation And Maintenance Manual

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.
Environment
LED
sensor connector
LAN
Ethernet
RS-232 Reset button
connector
connector
The following illustration shows the components and controls on the front of the 1U PDU with 9 C19 outlets
on the front.
Environment LED
sensor connector
LAN
Ethernet
RS-232 Reset button
connector 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.
Circuit breakers
Power outlets
Circuit breakers
Power outlets
Input power
connector
Input power
connector
. 5
Chapter 1 Introduction