6.4 Connection to DMX signal
The DMX signal is to be connected by using a shielded cable designed for devices RS-485.
The unit is fitted with internal pins for the connection of the of the DMX signal cable, as shown in the following
pictures.
A.
Untighten the 6 screws
“6”,
open the units, untighten the
screws
“7”
and remove the cover.
B.
Let the signal cables pass through the cable glands
“10
”
located onto the unit body and connect the DMX signal ca-
bles to the pin
“11”
.
The connection of the cable to the unit must be performed re-
specting the label next to the terminal box, while from the end
of the DMX controller the connection must respect the follow-
ing table:
pin 1 = GND
pin 2 = data -
pin 3 = data +
For DMX devices with 5 poles connectors, pins 4 and 5 are not
to be connected.
Size and connection scheme of the DMX cable are shown in
the following picture.
C.
Close the unit again by tighten the screw
“6”
and
“7”
previously removed.
Warning!
Make sure that the front panel gasket is properly positioned in order to avoid water infiltrations into the unit.
Warning!
All data wires must be isolated one from another, from the shield and from the metal housing of the connectors.
Pin number 1 of the housing is not to be connected to the electric ground of the unit.
Insert a terminal plug with a 120 Ω resistor connected to pins 2 and 3 in the last unit.
ø4 MIN
ø8 MAX
Pin 1: GND
Pin 2: DATA-
Pin 3: DATA+
DMX cable size
11
10
6
6
7
24
English
