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1 rs-232c serial interface – Dascom 7010 Programmers Manual DMX User Manual

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5.1 RS-232C Serial Interface

1 Specifications

Transmission system: Asynchronous communication method (full duplex)

Signal logic level:

RS-232C

Baud rate:

2400, 4800, 9600, 14400, 19200,

38400, 57600, 115200 bps

Data length:

7 bits or 8 bits

Start bit:

1 bit

Stop bit:

1bit, 2bits

Parity check:

Odd parity, even parity, none

Connector:

D-sub 25pin 17LE-13250-27(D41)(DDK) or
equivalent

2 Example of connection of computer and printer

IBM compatible machines

Communication control: XON/XOFF or CTS/DTR

"IBM compatible"
(DB9P)

(DB25P)

SHIELD

TXD

RXD

CTS

S.GND

1 F.GND

3 RXD

2 TXD

20 DTR

7 S.GND

DTR

DSR

4 RTS

5 CTS

NC

3

2

8

5

4

6

Printer

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