7Installation
Setup for Controller Operation
Connect the Serial Link
The RoboScan 812 may be used with DMX and Martin protocol controllers. The RoboScan
812’s XLR connections are configured for Martin protocol controllers such as the 3032.
When connecting a RoboScan 812 to any DMX-standard device, you must swap pins 2 and
3 with a phase-reversing cable.
1. Connect the controller’s data output to the RoboScan 812’s input (2). If using
a Martin-standard controller, use a direct 3-pin to 3-pin cable such as the one
provided. If using a DMX controller, use a phase-reversing cable, either 3-pin
to 3-pin, or 5-pin to 3-pin, depending on the output of the controller.
2. Continue the link: connect the output (1) of the fixture closest to the con-
troller to the input of the next fixture. Use a direct cable when connecting
same-standard fixtures. Use a phase-reversing cable only when connect-
ing a DMX-standard fixture to a Martin fixture with pin 2 hot. Up to 32 fix-
tures may be connected on a serial link.
3. Insert a male 120 Ω XLR termination plug in the output of the last fixture
on the link. The termination plug is simply a 3-pin male XLR plug with a
120 Ω resistor soldered between pins 2 and 3. The termination plug is
required for error-free communication.
Set the Address
When using the RoboScan 812 with a controller, you must set the DIP-switch (3) to the start
channel, also known as the address, which is the first channel the controller uses to send
instructions to the RoboScan 812.
For independent control, each fixture must have its own address and control channels. Two
or more RoboScan 812s may have the same address; however, they will receive the same
instructions and behave identically.
Phase Reversing
Cable
Male Female
1
2
3
1
2
3
3-pin to 3-pin
Connections
P/N 11820006
Phase Reversing
Cable
Male Female
1
2
3
4
5
5-pin to 3-pin
Connections
P/N 11820003
Phase Reversing
Cable
3-pin to 5-pin
P/N 11820002
1
2
3
Male Female
Connections
1
2
3
1
2
3
4
5
812C.fm Page 7 Monday, September 3, 2001 4:23 PM
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