Lenovo 46M4002 Installation And Maintenance Manual page 58

1. If applicable, connect external contact inputs to the screw terminals on the PDU environment sensor.
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
1
2
3
4
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.
PDU environment
sensor
Ethernet cable
Environment
sensor connector
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
50
1U C19 and C13 Switched and Monitored PDUs Installation and Maintenance Guide
PDU environment sensor
screw terminals
Description
Contact 1 return
Contact 1 signal input
Contact 2 return
Contact 2 signal input
PDU
Normally open/ normally
closed
Normally closed
Normally open
Normally closed
Normally open