ADJ INN119, Руководство пользователя

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10
D M X S E T U P
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 connect 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.
Special Note: Line Termination. When longer runs of cable are used, you may need to use a termi-
nator 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.
5-Pin XLR DMX Connectors. Some manufacturers use 5-pin DMX-512 data cables for DATA trans-
mission in place of 3-pin. 5-pin DMX fixtures may be implemented in a 3-pin DMX line by using a
cable adapter. These adapters are readily available at most electronics 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
(DMX-)
Figure 4
DMX512 IN
3-PIN XLR
1
2
3
1
2
3
DMX +
DMX -
COMMON
DMX512 OUT
3-PIN XLR
Figure 2
Figure 3
1 Ground
1 Ground
XLR Male Socket
3 Hot
2 Cold
2 Cold
3 Hot
XLR Female Socket
XLR Pin Confi
guration
Pin 1 = Ground
Pin 2 = Data Compliment (negative)
Pin 3 = Data True (positive)