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9.
SERIAL INTERFACE
9.1
Specifications
a) Synchronism
b) Baud rate:
RS-232C type
Current Loop type
c) Composition of one word:
Start bit
Data bit
Parity bit
Stop bit
d) Signal Polarity :
RS-232C type
Current Loop type
e) Received Data:
RS-232C & Current Loop (RD signal)
f) Receiving Control (DTR signal)
RS-232C
Current Loop:
g) Transmission Control (TD signal)
DC1 code (11H) "X" ON
DC3 code (13H) "X" OFF:
However, this is valid only for type B input buffer (7K).
: Asynchronous
: 110, 150, 300, 600, 1200, 2400, 4800, 9600BPS (Selected by user)
: 110, 150, 300, 600, 1200BPS (Selected by user)
: 1bit
: 7 or 8 bits (selected by user)
: Odd, even or no parity (Selected by user)
: 1bit or more
: *Mark = Logic "1" (-3V to -12V)
*Space = Logic "0" (+3V to +12V)
: *Mark = Logic "1" (Current ON)
*Space = Logic "0" (Current OFF)
*Mark = 1
*Space = 0
: *Mark:
Data Transfer not possible
*Space:
Data Transfer possible
*Mark (Current ON):
*Space (Current OFF):
:
Data Receiving possible
Data Receiving not possible
CBM-710/720/730/750 User's Manual
Data Transfer possible
Data Transfer not possible
25
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