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7. INTErfacE fOr mOdEL dp8340rm
7-1. Interface Specifications
(1) Synchronization system : asynchronous
(2) Baud rate :
(3) Word length :
Start bit:
Data bit:
Parity bit:
Stop bit:
(4) Signal polarity :
RS-232C
(5) Handshaking :
1 DtR Mode (1 block)
2 X-ON/X-OFF Mode
3 StX-etX Mode
Note: STX-ETX Mode may use DTR or X-ON/X-OFF, selected by DIP SW 1-5.
See Chapter 9. for details.
7-2. Interface Circuit
Input (RXD, CtS)
Output (DtR, FaUlt, tXD, RtS)
( mOdULar Jack cONNEcTOr )
150, 300, 600, 1200, 2400, 4800, 9600 bps
(Selectable)
1 bit
7 or 8 bits (Selectable)
Odd, even, or None (Selectable)
1 or 2 bit length (Selectable)
MaRk
SPaCe
Figure 7-1. RS-232C Interface
: logic "1" (–3V to –25V)
: logic "0" (+3V to +25V)
– 19 –
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