Dell Environmental Monitoring Probe Podręcznik użytkownika - Strona 10
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Installing the EMP
To install the EMP:
1 If you plan to monitor one or two external contact devices, connect external contact closure inputs to
the screw terminals on the EMP (see Figure 3 and Table 1).
NOTE:
Contact closure devices can be normally open or normally closed.
Figure 3. Connecting External Contact Devices
Table 1. EMP Screw Terminal Pin Assignment
Device
Device 1 Connection
Device 2 Connection
4
Installation
Pins
1 2 3 4
Pin Number
1
2
Contact 1 signal inputs
3
4
Contact 2 signal input
Contact Wiring
Contact 1 returns
Contact 2 returns
Default Configuration
Normally open
Normally open