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One start bit eight data bits one stop bit – Gilderfluke&Co DMX-512 Input Servo Motor Controller User Manual

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COLOR

SIGNAL NAME:

LEFT

#1 gray

- DMX-512 Data Input

#2 white (or orange)

Signal Ground

#3 black

- Serial data out from card

#4 red

+ Serial data out from card

#5 green

- Serial data in to card

#6 yellow

+ Serial data in to card

#7 blue

Signal Ground

RIGHT

#8 brown

+ DMX-512 Data Input

PC and Compatible Connections: If you are only talking to a

single SER-DMX and your wire length is short, you may be able to
cross wire the RS-232 serial port on your PC to talk to the SER-DMX.
This does not work on all PCs, as some don’t swing their RS-232 out-
puts as far as they should. If it does not work with your PC, you may
need to get a RS-232 to RS-422 converter to talk to the SER-DMX. To
cross wire the RS-422 / RS-485 signals from the SER-DMX to the RS-
232 serial port of an IBM compatible, cross connect the signals as fol-
lows:

DB-25 DE-9

Signal

Signal from/to SER-DMX

2

3

DATA OUT

- Serial data into card (#5 green)

3

2

DATA IN

- Serial data out from card (#3 black)

7

5

GROUND

Signal Ground (#2 white or #7 blue)

Apple Macintosh Connections: Apple Macintosh computers

have true RS-422 serial ports built in. To connect to the SER-DMX, the
pin out is as follows (view is of male connector facing the end of the
cable):

to + serial data in to card (#5 yellow)

to - serial data in to card (#4 green)

1 2

3

4

5

6

7 8

from - serial data out from card (#2 black)

from + serial data out from card (#3 red)

signal ground (#1 blue or #6 white)

The SER-DMX expects to see the serial data in the following for-

mat:

ONE START BIT

EIGHT DATA BITS

ONE STOP BIT

The SER-DMX responds only to the command to enter the config-

uration mode, display status or upload/download its configuration. It
will ignore all other commands. It can share the same RS-422 serial

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