RS-232 to X2

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HMIs, human machine interfacesPanel PC ET/MT-4x6...Electrical InstallationConnection ofRS-232 to X2


The X2 and X3 ports of our HMIs provide an RS-232 interface. The interface is a type DCE interface.


The following illustration for DB9 and DB25 plugs shows how the interface should be connected to a device.


Standard VB99 cable.












The PIN configuration of the control unit will be detailed in the interface description issued by the control unit manufacturer.



The maximum length of a standard data transmission cable is 15m.


The maximum cable length possible for an accurate data transmission depends on many factors, such as the transmission rate, the cable properties or the interference fields surrounding the cable.


See also:

Kapitelseite RS 232 Informations

Kapitelseite X2, RS-232, RS-422 and RS-485


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