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Page 9 DTRX1 9941
RS232
connection
: max. distance 15 m.
Jumper JP3 set in C position.
DCS2/DCMT8
DTRX1
TX RS232 Black
------
Yellow RX RS232
GND RS232 Green
------
Red GND RS232
RS485
connection
: max. distance 1200 m. Jumper JP3 set in B position.
The receiver DTRX1 comes complete with the DT485 interface for RS485 communication.
The RS485 standard allows a maximum length of line of up to 1200mm.
The DT485 board contains a re-transmission that allows you to increase this length.
The RS485 standard allows for the termination of the line on the apparatus located at the ends of it.
Jumpers JP1 and JP2 are designed for this purpose..
•
Jumper JP2
enables/disables the termination for the
reception
(JP2 in position A, charge on; JP2 in position B,
charge off).
•
Jumper JP1
enables/disables the termination for the
re-transmission
(JP1 in position A, charge on; JP1 in position B,
charge off).
The other devices connected to the line
must never be terminated.
For the entry of the charge on the keyboards
DCS3, consult the relevant user’s manual.
DCS2
DTRX1
Summary of Contents for DTRX1
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