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Operator´s manual for BAT VGA pro
Version 1.1
4.3
RS 422 interface
Connection of a controller via an RS 422 interface of the display terminal.
RS422 module
Terminal compartment of the terminal
TxD B (TxD+)
Data Out
TxD A (TxD-)
RxD B (RxD+)
Data In
RxD A (RxD-)
Pins 1 - 5, 2 - 6, 3 - 7, 4 - 8 are already connected inside.
In most cases, internal EMC measures allow the installation of termination resistors at the beginning and the
end of the bus line to be dispensed with.
Depending on local conditions, there might occasionally be impairment of data transfer..
E_BMS00680_Rev7.doc • Operator´s manual for BAT VGA pro • Revision 7 / Status: 29. January 2004 • Technical data subject to change
PE
Controller
RxD B (RxD+)
RxD A (RxD-)
TxD B (TxD+)
TxD A (TxD-)
to other display terminals
if final device
Page 4 7
Data In
Data Out
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