A.D.J. Supply Europe B.V.
– www.americandj.eu – CRAZY POCKET 8 User Instructions Page 6
DMX SET UP (continued)
Notice:
Be sure to follow figures two and three when making your own cables. Do not use the ground lug on
the XLR connector. Do not con
nect the cable’s shield conductor to the ground lug or allow the shield conductor
to come in contact with the XLR’s outer casing. Grounding the shield could cause a short circuit and erratic
behavior.
XLR Pin Configuration
Pin1 = Ground
Pin2 = Data Compliment (negative)
Pin3 = Data True (positive)
Figure 3
Special Note: Line Termination
.
When longer runs of cable are used, you may need to use a terminator on
the last unit to avoid erratic behavior. A terminator is a 110-120 ohm 1/4 watt resistor which is connected
between pins 2 and 3 of a male XLR connector (DATA + and DATA -). This unit is inserted in the female XLR
connector of the last unit in your daisy chain to terminate the line. Using a cable terminator (ADJ part number
Z-DMX/T) will decrease the possibilities of erratic behavior.
Termination reduces signal errors and avoids signal
transmission problems and interference.
It is always advisable to connect a DMX terminal,
(Resistance120 Ohm 1/4 W) between PIN 2 (DMX-) and PIN 3
(DMX +) of the last fixture.
Figure 4
5-Pin XLR DMX Connectors
.
Some manufactures use 5-pin DMX-512 data cables for DATA transmission in
place of 3-pin. 5-pin DMX fixtures may be implemented in a 3-pin DMX line. When inserting standard 5-pin
data cables in to a 3-pin line a cable adaptor must be used, these adaptors are readily available at most
electric stores. The chart below details a proper cable conversion.
3-Pin XLR to 5-Pin XLR Conversion
Conductor
3-pin XLR Female (Out)
5-pin XLR Male (In)
Ground/Shield
Pin 1
Pin 1
Data compliment (- signal)
Pin 2
Pin 2
Data True (+ signal)
Pin 3
Pin 3
Not used
Pin 4 - Do Not Use
Not used
Pin 5 - Do Not Use
DIMENSIONS
Figure 2