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Chapter 5: Standard Serial Interface
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This chapter provides detailed specifications for the printer’s standard serial
interface (Connector Type: D-sub 9-pin).
Set the transmission parameters with DIP Switch 1.
Transmission type............Asynchronous serial interface
Baud rate (bps).................2400, 4800, 9600, or 19200
(Selected by DIP switch)
Word format
Start bit:................1
Data bits: ..............7 or 8 (Selected by DIP switch)
Parity: ...................Odd, Even, or None
(Selected by DIP switch)
Stop bit: ................1
Signal polarities
RS-232C...............Mark = Logic “1” (–3V to –15V)
Space = Logic “0” (+3V to +15V)
Handshaking ....................DTR or XON/XOFF mode (Selected by DIP switch)
Input (RXD, DSR, INIT)
Output (DTR, TXD, RTS)
b0 b1 b2 b3 b4 b5 b6 (b7)
ABCD
Mark [1]
Space [0]
A: Start bit
B: Data bits
C: Vertical parity bit
D: Stop bit
Printer Host computer
75188 or equivalent
Printer Host computer
