Lenovo 46M4002, Installation And Maintenance Manual

Page: 58 / 86

1. If applicable, connect external contact inputs to the screw terminals on the PDU environment sensor.
PDU environment sensor
screw terminals
Pin 1
Note: External contact device 1 is connected between pins 1 and 2. Device 2 is connected between
pins 3 and 4 (as labeled to show device 1 and 2). External contact devices can be normally open or
normally closed.
Table 4. PDU environment sensor screw terminal pin assignment
Pin number
Description
Normally open/ normally
closed
1 Contact 1 return Normally closed
2 Contact 1 signal input Normally open
3
Contact 2 return
Normally closed
4 Contact 2 signal input Normally open
2. Connect the Category 5 Ethernet cable that comes with the environment sensor to the PDU environment
sensor and to the environment sensor connector on the PDU.
Note: If the cable is not long enough for your configuration, you can use a cable that is 20 m (65.6 ft) or
shorter.
The following illustration shows how to connect an Ethernet cable to a 1U PDU and to the PDU
environment sensor.
5
6
2
1
3
4
LAN
Ethernet cable
Environment
sensor connector
PDU
PDU environment
sensor
3. Make sure that the PDU has a network connection, the power cord is connected, and the power to the
PDU is turned on. The PDU environment sensor is automatically recognized by the PDU.
4. Start a web browser and connect to the PDU IP address (for more information, see “Using the web
interface” on page 39). The web interface main status page opens. Click Environment , and then click
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1U C19 and C13 Switched and Monitored PDUs Installation and Maintenance Guide