Table of Contents
Advertisement
5.
Serial Interface (option)
When using the serial interface, the optional Serial-Parallel Converter must be connected with the printer.
5-1. General Specifications
Item
Interface
Synchronization System
Baud rate
Word length
Start bit:
Data bit:
Parity bit:
Stop bit:
Signal polarity
Mark:
Space:
Handshaking
Data buffer
5-2. Connector Signal and Functional Descriptions
Pin No.
Signal name
1
GND
2
TXD
3
RXD
4
RTS
5
CTS
6
NC
7
GND
8~10
NC
11
RCH
12~19
NC
20
DTR
21~25
NC
RS-232C level
Asynchronous
150 - 19,200 bit per second (BPS) [selectable]
150, 300, 600, 1200, 2400, 4800, 9600, 19200 BPS
1 bit
7 or 8 bits (selectable)
Odd, Even or None (selectable)
More then 1 bit length
Logic "1" (–3V to –15V)
Logic "0" (+3V to +15V)
DTR
X
/X
ON
OFF
ETX/ACK
8KB (standard)
Direction
—
Printer's chassis ground.
OUT
This pin carries data from the printer.
IN
This pin carries data to the printer.
OUT
Always space.
This pin is space when the computer is ready to send data.
—
This printer does not check this pin.
Unused.
—
Signal ground.
Unused.
This printer turns this pin space when it is ready to receive data.
OUT
This line carries the same signal as pin 20.
Unused.
OUT
The printer turns this pin space when it is ready to receive data.
Unused.
– 9 –
GENERAL SPECIFICATIONS
Specifications
Function
Advertisement
Chapters
Table of Contents
Troubleshooting
