Rs-232C (Com) - Contec CONPROSYS nano CPSN-MCB271-S1-041 Reference Manual

Remote i/o cpu unit

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2 Setup

RS-232C (COM)

When using an RS-232C interface, different cables may be required depending on the types of device to

which you are connecting (computer or modem, etc.). Check the requirements of the external device and

select either a straight-through or crossed (null modem) cable as appropriate. If special treatment of the

signal lines in the connector is required, ensure that this is done in accordance with the specifications.

Figure 2.27. Example connection to a modem

Figure 2.28. Example connection to a PC

Figure 2.29. Example connection to a device

CPSN-MCB271-S1-041 Reference Manual (Hardware)

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