Interface Configuration; Rs-232 Serial Interface; Specifications (Conforming To Rs-232); Signal Array And Explanations According To Interface Connector Pin - Star Micronics Line Thermal Printer Specifications

1. INTERFACE CONFIGURATION

1.1. RS-232 Serial Interface

1.1.1.

Specifications (Conforming to RS-232)

Rating:
Synch method:
Handshake:
Baud rates:
Bit length:
Parity:
Parity bit:
Stop bit:
Signal polarity:
1.1.2.

Signal array and explanations according to interface connector pin

<Signal Array and Functions>
Pin Signal Name
No.
1 FG
2 TXD
3 RXD
4 RTS
5 N.C
6 DSR
7 SG
8-19 N.C
20 DTR
21-24 N.C
25 /INIT
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STAR Line Mode Command Specifications
RS-232C
Start-Stop synchronization method
DTR mode
4800, 9600, 19200, 38400 bps (Set by DIP switches)
7, 8 bits (Set by DIP switches)
Yes/No (Set by DIP switches)
Odd/even (Set by DIP switches)
1 bit (Fixed)
Mark = logic 1 (-3 to -15 V)
Space = logic 0 (+3 to +15 V)
Signal
Direction
- Frame ground
OUT Transmission data
IN Reception data
OUT Same as DTR
- Not used
IN Not used
- Signal ground
- Not used
OUT Data terminal ready signal (SPACE: printer is ready to receive.)
1) When in DTR mode:
When printer is ready to receive data: SPACE
2) When in XON/XOFF mode:
Always SPACE except in the following conditions.
1. Until communication is possible after a reset.
2. When test printing
Signal ground
IN Signal ground
Remarks
1-1