EAeDIP128-6

Page 5

ELECTRONIC ASSEMBLY reserves

the right to change specifications

without prior notice. Printing and

typographical

errors

reserved.

Application note

Application note

Application note

APPLICATION EXAMPLE „REAL“ RS-232 INTERFACE

The eDIP fits for direct

connection to a RS-232

interface with CMOS

level (VDD).

If you have an interface

with ±12V level, an

external levelshifter is

needed.

APPLICATION EXAMPLE:RS-485 INTERFACE

With an external converter (e.g.

SN75176), the EA eDIP can be

connected to a 2-wire RS-485

bus. Large distances of up to

1200

m

can

thus

be

implemented (remote display).

Several EA eDIP displays can

be operated on a single RS-485

bus by setting addresses.

APPLICATION EXAMPLE:USB INTERFACE

With an external converter (e.g. FT232R from FTDI) the eDIP can be connected to an USB-Bus.

Virtual-COM-Port drivers are available for different Systems on the FTDI Homepage:

Adressing:

- Up to eight hardware addresses (0 to 7) can be set by means of Pins ADR0..ADR2

- The eDIP with the address 7 is selected and ready to receive after power-on.

- The eDIPS with the addresses 0 to 6 are deselcted after power-on

- Up to 246 further software addresses can be set by means of the ‘#KA adr’ command in the power-on macro (set eDIP

externally to address 0)