Matrix-orbital LK204-25 Legacy Bedienungsanleitung PDF herunterladen (Seite 10)

complies with the EIA232 standard in that it uses signal levels from ± 3V to ± 12V. It will not operate

correctly at TTL (0 to +5V) levels.

Number

Direction

Description LCD Host

2 Data from LCD Data out (LCD) Tx Rx

3 Data to LCD Data in (LCD) Rx Tx

5 - Ground gnd gnd

The power connector on the PC cable is wired as shown in Figure 2-8.

2.1.3Configuring RS-232 and I

RS-232 baud rate and I

C address are configured by means of jumpers.

Figure 2-9 RS-232 jumpers

The module is supplied with jumpers J1 and J2 installed, which gives an RS-232 baud rate of 19200 and an

C address of 0x5C.

 RS-232 port: J0, J1, J2 - control baud rate. RS-232 format is 8N1 (8 bits, no parity, one stop bit)

 I²C port: J0, J1, J2, J3 - sets slave peripheral address

Baud Rate Slave Address J3 J2 J1 J0

1200

50H out out out out

52H out out out in

2400

54H out out in out

56H out out in in

9600

58H out in out out

5AH out in out in

19200

5CH out in in out

5EH out in in in

1200

60H in out out out

62H in out out in

LK204-25 rev 1

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 32 33

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Matrix-orbital LK204-25 Legacy Bedienungsanleitung Seite 10