1. interface specifications, 2. interface circuit – Star Micronics Star DP8340 User Manual

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7. INTERFACE FOR MODEL DP8340-M

( MODULAR JACK CONNECTOR )

7-1.

Interface Specifications

(1)

Synchronization system Asynchronous

(2)

Baud rate

150, 300, 600, 1200, 2400, 4800, 9600,
BPS (Selectable)

(3)

Word length
Start bit:

1 bit

Data bit:

7 or 8 bits (Selectable)

Parity bit:

Odd, Even, or None (Selectable)

Stop bit:

1 or 2 bit length (Selectable)

(4)

Signal polarity
RS-232C

MARK

: Logic “1” (–3V to –25V)

SPACE

: Logic “0” (+3V to +25V)

(5)

Handshaking
1 DTR Mode (1 block)
2 X-ON/Y-OFF Mode
3 STX-ETX Mode

Note: STX-ETX Mode may use DTR or X-ON/X-OFF, selected by DIP SW 1-

5. See Chapter 9. for details.

7-2.

Interface Circuit

Input (RXD, CTS)

Output (DTR, FAULT, TXD, RTS)

Figure 7-1. RS-232C Interface