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11. Serial Interface
11-1. Types
The M-8S1 OA serial interface is available in three types:
(1)
M-8SI0ARE
RS-23 2C economy type
RS-232C
RDYjBSY
System
(2) M-8SI0A RD
RS-232C delux type
RS-232C RDYjBSY, X
ONjX
OFF, ETX/ACK System
(3) M-8SI0ACD
RS-23 2C delux type + Current loop
The mounted type can be identified by viewing the printer from rear (serial number plate).
MODEL 8510ARE PRINTER
AC220V
11-2. Data Transmission Speed
110
200
300
600
1,200
2,400
4,800 and 9,600 BPS
At a transmission Speed of 9600 BPS, the total number of bits must not be less than 10 (Example I).
This is because 990
I1S
is needed to process one byte.
Example 1:
Start
Data
7
NO parity
Stop
1
bit
Total
9 bits
11-3.
Data Protocol
RE
RD
CD
(I) DATA READY/BUSY (DTR) system
0
0
0
(2) X
ONjX
OFF, ETX/ACK system
X
0
0
11-4. Synchronous System
(1)
START-BIT: I bit
(2) STOP-BIT: I bit or 2 bits
Word length
~
F
---~
c--=
C:---=:I
IC=::~':I.
,=-:' , :).
•
- - - ,
• - - ,
• - - - I
I
:
•
•
I
•
•
,
,
,
•
b1
b2
b3
b4 b5
b6' ___
J
~
I
Start bit
Parity bit
(3) Word length: 7 or 8 bits
-27-
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