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DR300 Operator Manual
Serial Interface
• Interface Specifications
Protocol
Ready/Busy
XON/OFF
Status 3
Baud rate
2400, 4800, 9600, 19200 BPS
Synchronize
Asynchronous mode
Maximum
32K
receive buffer
capacity
Near full
occurrence
Near full
cancellation
Character
Data bit
construction
Start bit
Stop bit
Parity check
Data
ASC II (7 bit)
Specification
Connector
Printer side DB-25S (Equivalent)
Cable side DB-25P (Equivalent)
Cable length less than 5m
Transmission
format
Start
Note : b8 is omitted when set to 7 bit data
Signal level
High level : +5 ~ +12 V
Low level : -5 ~ -12 V
CHAPTER 10
Serial Interface
OK
b1
b2
b3
Chapter 10 - Serial Interface
(1 item, multi items selectable)
(1 item, multi items selectable)
(Multi item only)
7 or 8 bit
1 bit
1 or 2 bit
Even, Odd, None
Graphic (8 bit)
b4
b5
b6
32K
2Kbytes remained
8Kbytes remained
b7
b8
Stop
76
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