PLX51-DL-232
Installation
Data Logger
User Manual
ProSoft Technology, Inc.
Page 12 of 59
2.3 Power
A three-way power connector is used to c positive, - negative, and Earth. The
PLX51-DL-232 requires an input voltage of 10 to 28 Vdc.
Figure 2.5. - Power connector
2.4 RS232 Port
The RS232 connector is used to connect the Transmit (Tx), Receive (Rx), and Ground
conductors for serial communication. The shield terminal can be used for shielded cable
in high noise environments.
Important:
The shield of the RS232 port is internally connected to the power connector earth. Thus, when
using a shield it is important to connect the Earth terminal on the power connector to a clean earth. Failing
to do this can lower the signal quality of the RS232 communication.
Important:
When using a shielded cable, it is important that only one end of the shield is connected to earth
to avoid current loops. It is recommended to connect the shield to the PLX51-DL-232, and not to the other
Serial device.
Figure 2.6. - RS232 connector
2.5 Ethernet Port
The Ethernet connector should be wired according to industry standards. Refer to the
additional information section in this document for further details.