Page 5 of 13
SC910D/SC910W DMX CONTROLLER
Version 2.1
OWNERS MANUAL
11/02/2020
www.lightronics.com
Lightronics Inc.
509 Central Drive Virginia Beach, VA 23454
757 486 3588
SC910W SMART REMOTE CONNECTIONS
The SC910W can operate with two types of smart
remote stations. This consists of Lightronics pushbutton
stations (AK, AC and AI series) and the AF fader
stations. Communication with these stations is over a 4
wire daisy chain bus which consists of a dual twisted
pair data cable(s). One pair carries the data, while the
other pair supplies power to the remote stations.
Multiple smart remotes of different types can be
connected to this bus.
Connections for the smart remotes are on the bottom 4
terminals of J3 marked COM, REM-, REM+, and +12V.
An example using the AC1109 and AF2104 smart
remote wall stations is shown below.
DMX CONTROLLER OPERATION
For the best results, it is advised - when installed on a
large DMX data network or any network containing
devices with “Master/Slave” functions such as select
Lightronics FXLD or FXLE fixtures - an optically
isolated splitter be installed on the output side of the
SC910 in the DMX data chain.
Once the SC910’s DMX and remotes are connected, the
unit is ready to be powered on. Upon start up, the SC910
will flash the software version number then go to an
OFF state, illuminating the “OFF” LED.
DMX INDICATOR LED
The green LED indicator conveys the following
information about the DMX input and DMX output
signals.
OFF
DMX is NOT being received
DMX is NOT being transmitted
BLINKING DMX is NOT being received
DMX is being transmitted
ON
DMX is being received
DMX is being transmitted
REC SWITCH AND REC LED
The RECORD switch is a pushbutton recessed below
the face plate to prevent accidental operation of the
record function. It is located to the right and below the
red RECORD LED. You will need a small tool (such as
a piece of solid wire or paperclip) to push the button
when recording.
CHN MOD BUTTON AND LED
The SC910’s CHN MOD button is used to toggle
between scene and channel mode. After startup, the
device will default to scene mode. When in this mode,
the unit acts as a replay device, each of the buttons and
faders will recall any previously recorded scenes.
When the CHN MOD button is pressed, the amber LED
beside the button will illuminate, signifying that the
SC910 is now in channel mode. In this mode, the device
can be used like a DMX console or scene setter,
allowing the user to set/change/modify/store scenes on
any combination of levels using up to 512 DMX
channels. Press CHN MOD and follow all steps in the
next two sections of this manual to set outputs.
SETTING CHANNEL LEVELS
The ten faders on the SC910 user interface are used to
set levels for a block of ten DMX channels at a time.
Once set, those levels remain live until they are changed
or a clear command is given. While in CHN mode, any
changes to a DMX controller that inputs to the SC910
will not be received. Any changes to a DMX channel
from the SC910 will follow a Last Takes Precedence
priority.
The SC910 uses a unique addressing system to access
blocks of faders. DMX channels 1 - 10 are the defaults
for fader operation when the unit is powered up and
switched to channel mode. To access a block of ten
channels other than the default (1-10) the SC910 uses
additive addressing. Utilizing the eight buttons on the
