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User Guide
Leviton MC 7500 Series Memory Lighting Controllers
INSTALLATION AND SETUP
Power Supply
The MC 7500 Series Lighting Consoles require a source of 120/240 volts AC (1 Amp) to operate satisfactorily.
Power Supply Voltage Selection:
The console contains a power supply designed to operate on AC power at a nominal
voltage of 120V or 240V, 50/60 Hz. The voltage selected is indicated in the window on the console inlet connector
on the back of the console. To change that selection (1) remove the power supply cable, (2) insert a screwdriver in
the slot exposed by removing the cable and pry out the fuse block, (3) slide the printed-circuit board out of the fuse
block and reverse it, and (4) reinsert the fuse block with its arrow pointing up.
NOTE
CAUTION:
Verify that the nominal input voltage selection as indicated in the window on the controller inlet is
compatible with the nominal voltage of the available power.
Power Supply Connection:
The controller is shipped set for operation at 120V and with a power supply cord
containing a North American NEMA 5-15P plug (Edison, parallel-blade, U-ground type). In other countries with
different connector systems and/or operating voltages, the user must obtain and use a H05VV-F or better grade
power cord with plug rated for at least 0.8 A and at least the nominal operating voltage of that country. The mating
connector to the console is a female IEC 320, Sheet C13 connector rated 10A, 250V.
Dimmer Equipment Connection
Connecting the MC 7500 Series console to Leviton-NSI dimming
equipment is very simple. You need only to connect a single
3-conductor audio cable (standard microphone cable equipped
with a 3-pin XLR type connector) to either of the jacks marked
MICROPLEX on the rear apron of the console. It doesnʼt matter
which jack is used; two jacks are provided for convenience.
Connect the other end of the cable to the Leviton-NSI dimming
equipment.
NOTE
Minimum 20-gauge high quality shield cable is highly recommended in the run between the console and
the dimmers to prevent interference and dimmer flickering from noise. This heavy-duty cable is required
in runs over 100 ft.
The DMX512 digital signal provides the highest speed, precision, and noise immunity. When connecting DMX512:
•
Use cable that is specified as RS-485 or RS-422 compatible (shielded, 1 or 2 twisted pair) and use the largest
gauge available (22-18 gauge is good for long runs of 1000 of).
•
Daisy chain the cable only (no star or home runs) and terminate
the end of the cable with a 120-ohm resistor.
•
The DMX512 output of the MC 7500 Series console is OPTICALLY
ISOLATED to prevent ground loops. Make sure that the shell of
the 5-pin connector is NOT connected to pin 1, else the isolation
will be of no help.
MPX Data
2
1
3
+ 12-15 VDC
Common
Female Micro-plex
XRL Pin Configuration
MPX Data
1
2
3
Common
+ 12-15 VDC
Male Micro-plex
XRL Pin Configuration
1
2
3
4
5
N / C
N / C
Common
DMX Data -
DMX Data +
Female DMX512
XLR Pin Configuration