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4. SERIAL INTERFACE
4-1. Interface Specifications
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)
SERIAL
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