American DJ Accu Spot 300 User Instructions page 6

REMOTE
Accu Spot 300 INPUT OUTPUT
SOUND CONTROL
INPUT
shielded cable (This cable may be purchased at almost all professional
sound and lighting stores). Your cables should be made with a male
and female XLR connector on either end of the cable. Also remember
that DMX cable must be daisy chained and cannot be split.
Notice:
Be sure to follow figures two and three when making your own
DMX512
cables. Do not use the ground lug on the XLR connector. Do not con-
DMX+,DMX-,COMMON
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.
DMX512 OUT
3-PIN XLR
XLR Male Socket
1 Ground
2 Cold 2 Cold
REMOTE
INPUT OUTPUT
CONTROL
INPUT
3 Hot
Figure 3
Special Note: Line Termination.
POWER
used, you may need to use a terminator on the last unit to avoid erratic
behavior. A terminator is a 90-120 ohm 1/4 watt resistor which is con-
nected 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
1 1
DMX512 IN
and interference. It is always advisable
3 3
3-PIN XLR
to connect a DMX terminal, (Resistance
2 2
120 Ohm 1/4 W) between PIN 2 (DMX-)
and PIN 3 (DMX +) of the last fixture.
American DJ - www.americandj.com - Accu Spot 300 Instruction Manual Page 11
®
SOUND
POWER
COMMON
DMX +
1 1
DMX512 IN
3 3
3-PIN XLR
DMX -
2
2
XLR Female Socket
XLR Pin Configuration
1 Ground
Pin 1 = Ground
REMOTE
INPUT OUTPUT
SOUND CONTROL
Pin 2 = Data Compliment (negative)
INPUT
3 Hot
Pin 3 = Data True (positive)
When longer runs of cable are
Figure 4
REMOTE
INPUT Set Up OUTPUT Accu Spot 300
CONTROL SOUND
INPUT
5-Pin XLR DMX Connectors.
connectors for DATA transmission in place of 3-pin. 5-pin XLR fixtures
may be implemented in a 3-pin XLR DMX line. When inserting stan-
dard 5-pin XLR connectors in to a 3-pin line a cable adaptor must be
used, these adaptors are readily available at most electric stores. The
POWER
chart below details a proper cable conversion.
Data Compliment (- signal)
Termination reduces signal errors and
avoids signal transmission problems
1
and interference. It is always advisable
3
to connect a DMX terminal, (Resistance
2
120 Ohm 1/4 W) between PIN 2 (DMX-)
Figure 2 and PIN 3 (DMX +) of the last fixture.
POWER
American DJ
REMOTE
INPUT OUTPUT
CONTROL
INPUT
Some manufactures use 5-pin XLR
POWER
3-Pin XLR to 5-Pin XLR Conversion
Conductor 3-Pin XLR Female (Out)
Ground/Shield Pin 1
Pin 2
Data True (+ signal) Pin 3
Not Used
Not Used
- www.americandj.com - Accu Spot 300 Instruction Manual Page 12
®
Set Up
5-Pin XLR Male (In)
Pin 1
Pin 2
Pin 3
Pin 4 - Do Not Use
Pin 5 - Do Not Use