Lightronics SM192 User Manual

Page 2

INSTRUCTION MANUAL

Page 2 of 8

SM - 192 DMX LIGHTING CONTROLLER

Version 20090519

www.lightronics.com

Lightronics

Inc.

509

Central

Drive

Virginia

Beach,

23454

757

486

3588

MAIN FEATURES

192 DMX Channels
30 Scene Banks of 8 programmable scenes each
6 Programmable chases with up to 240 steps each
8 Faders for output level adjustment
Built-in microphone for Music Auto-Run
AUTO mode controlled by TAP SYNC and SPEED
MIDI control through MIDI interface
4 digit LED display
Blackout Function
Fade Time control
Power Input: +9 - +12VDC, 300mA minimum
Power Connector: 2.1mm, Center Pin Positive
Dimensions: 482 x 132 x 73 mm
Weight: 2.5Kg

GENERAL DESCRIPTION

The SM-192 is a fixture (or scanner) oriented DMX
controller. It can control up to 12 fixtures of 16 DMX
channels each. The unit can also be used to control
conventional dimmer packs. The SM-192 includes 30
banks of user programmable scenes. Each bank can
contain up to 8 scenes. There are also 6 programmable
chases. Each chase may contain up to 240 steps.
Scene banks can be automatically run like chases.

FIXTURE CHANNEL ASSIGNMENTS

Each fixture is permanently assigned a 16 channel
block of DMX addresses. The table below shows the
assignments.

The fixtures must be set to accommodate these DMX
assignments. This is usually done using DIP switches
on the fixture. Refer to the fixture manual for exact
instructions for this procedure. This information is
sometimes shown on a tag or chart on the fixture.
If you set multiple fixtures to the same addresses then
they will respond to the SM-192 as one fixture.

FIXTURE FUNCTIONS

You will need to know which channel within a fixture
is assigned to each fixture function (Pan, Tilt, Color,
Dimming, etc.). This information is normally given in
the fixture manual.

DMX CONNECTIONS

Any system using DMX control should be connected
together as a chain of devices. In other words the
control cable should proceed from the controller to the
first fixture and then to other fixtures in a continuous
"daisy chain" fashion. Most fixtures have a DMX IN
and a DMX OUT connector to be used to connect the
chain. The control cable should NOT be split into a
multiple run star arrangement with a cable running
from the controller directly to each fixture.

DMX CONNECTOR PIN ASSIGNMENTS

There are two different connectors which can be used
for DMX control. They are both XLR type connectors.
Some units use 3 pin connectors. Others use 5 pin
connectors. The SM-192 transmits from a 3 pin female
connector on the back edge of the unit. If your fixtures
use 5 pin connectors then you can make up an adapter
cable to accommodate this.

There are some fixtures using a reversed signal
scheme. In this case the DATA - and DATA + pins are
reversed. The SM-192 has a reversing switch on the
back edge to handle this situation. The table below
shows the pin assignments for both normal and
reversed operation.

PIN #

NORMAL

REVERSED

DMX COMMON

DMX DATA -

DMX DATA+-

DMX DATA +

DMX DATA -

NOT USED

DMX TERMINATION

A DMX chain should be terminated at the last fixture
(and ONLY the last fixture) on the chain. This is done
by installing a commonly available 1/4 Watt, 120 Ohm
resistor across the DATA - and DATA + wires at the
last fixture. If you have only a few fixtures very close
together and a very short run to the controller then you
may be able to operate without the terminator.

Fixture # Channel

1 1-16
2 17-32
3 33-48
4 49-64
5 65-80
6 81-96
7 97-112
8 113-128
9 129-144

10 145-160
11 161-176
12 177-192