Magnum 1500 DMX interface module
29
6. Line up the edge of the
circuit board on the DMX
adapter module so that it
can slide into the groove in
the screw hole in the
housing and gently push
the DMX adapter into
place, being careful not to
trap any wires.
7. Replace the black rubber
molding and the three Torx
screws.
DMX cable connection
A reliable data link requires suitable cable. Standard microphone cable
cannot transmit DMX data reliably over long runs. For best results, use
shielded cable with at least one twisted pair specifically designed for RS-
485 applications. Your Martin dealer can supply suitable high quality cable
in various lengths.
The Magnum 1500’s XLR data sockets are wired with pin 1 to ground, pin
2 to signal - (cold), and pin 3 to (hot). This is the standard pin
assignment for DMX devices.
One or more adaptor cables may be required to connect the Magnum
1500 to the controller and/or other types of fixture, because some devices
may have 5-pin XLR connectors and others may have reversed signal
polarity (pin 2 hot and pin 3 cold). The required connector polarity is
normally labelled on devices and specified in user manuals.
DMX connection pins and polarity
Phase-Reversing
Adaptor
Male
Female
1
2
3
1
2
3
3-pin to 3-pin
P/N 11820006
Adaptor
Male
Female
1
2
3
4
5
1
2
3
5-pin to 3-pin
P/N 11820005
Adaptor
Male
Female
1
2
3
1
2
3
4
5
3-pin to 5-pin
P/N 11820004
