LIGHTRONICS AS42L 4 X 1200W COMPACT DIMMER Owner’s Manual
- June 12, 2024
- LIGHTRONICS
Table of Contents
AS42L
4 X 1200W COMPACT DIMMER
OWNERS MANUAL
DESCRIPTION
The AS42L is a compact four channel light dimmer. It has a maximum capacity of
1200 Watts per channel and a maximum total load capacity of 4800 Watts. It is
supplied with two input power cord stubs which may be connected to two
different 120 VAC power services. The AS42L is intended for INDOOR USE ONLY.
The unit operates using the Lightronics LMX-128 multiplex protocol. The AS42L
may be operated in a relay (non-dim) mode. The unit will also function as a
chaser and has several preset chase patterns which may be used.
AS42L END VIEW
INSTALLATION
LOCATION: Locate the unit vertically with control signal connectors on
the bottom in a well ventilated area away from moisture and heat. Two ½” holes
are provided on the dimmer top cover to install a lighting bar pipe clamp and
suitable safety cables.
POWER CONNECTIONS: Extending from the chassis are two 20 amp line cords
for connection to two separate 120 VAC, 20 Amp grounded services. Total
capacity of the AS42L is 4800 Watts.
LOAD CONNECTIONS: There are four numbered duplex outlets on the top of
the unit. Each provides two connections for each of the output channels. You
can connect up to 1200 Watts of lighting to each channel.
CONTROL SIGNAL CONNECTIONS: The male three pin XLR connector on the unit
end panel connects to the control console. The female connector is for
connection to additional dimmers. The AS42L dimmer is compatible with the
Lightronics LMX-128 and NSI/Sunn three wire multiplexed protocol. If you have
older Lightronics dimmers which run in the obsolete Lightronics mode only,
contact Lightronics for information on changing the mode. When using multiple
dimmers, ALL dimmers MUST be in the SAME mode.
CONTROL SIGNAL WIRING:
| XLR Connector Pin # | Signal Name |
|---|---|
| 1 | LMX Common |
| 2 | Console Power (+15Volts DC) |
| 3 | Multiplex Signal |
Applies to input and output connector
OPERATION
NORMAL MODE (Non-Chaser):
A green LED in the end panel will indicate that a valid LMX-128 control
signal is applied to the unit. A DIP switch block on the end panel selects the
starting channel number of the dimmer. The seven right hand switches control
this function. For example, if all switch positions are down – the dimmer will
respond to channels 1-4. Raising the switch on the far right will set the
dimmer to respond to channels 5-8. A complete table of channel assignments is
provided in this manual. You can address up to 512 channels with multiplex
control.
RELAY MODE
Pairs of channels (1/2 and/or 3/4) may be switched into the relay mode. In
this mode the output of these channels will be either off or full on depending
on the control console channel setting. The trip point for turn on is aprox.
50%. The two left hand switches on the DIP switch block control relay mode
channel selection. The UP position of the switches invokes RELAY MODE.
CHASER MODE:
When operating in the chaser mode the AS42L becomes independent of the
control console and other dimmers. The green LED indicator is OUT when in the
chaser mode. Chaser mode is turned on and off by one of the DIP switches on
the end of the unit. A diagram on the unit cover shows the switch settings for
controlling chaser operation. Eight different chase patterns are available. A
“bounce” condition may be imposed on several of the chase patterns by setting
one of the DIP switches. The bounce condition causes the chase pattern to run
in alternating directions.
The chase step time may be controlled for up to 64 seconds per step. Step fade
time is proportional to the step time. If a channel is in the relay mode
during chaser operation, it will “snap” on and off (zero fade time). The
tables below show the details of chaser settings.
ADDRESS & CONTROL SWITCH SETTINGS
CHASER PATTERN SELECTION
| SWITCHES | PATTERN |
|---|---|
| 4 channel. sequence | |
| 4 channel. build | |
| 4 channel. build/unbuild | |
| 4 channel. random | |
| 3 channel. sequence + | |
| 3 channel build | |
| 3 channel build/unbuild | |
| 2 channel alternating |
CHASER TIMING SELECTION
| SWITCHES | PATTERN |
|---|---|
| .5 seconds | |
| 1.0 seconds | |
| 2 seconds | |
| 4 seconds | |
| 8 seconds | |
| 16 seconds | |
| 32 seconds | |
| 64 seconds |
**MAINTENANCE AND REPAIR
**
TROUBLESHOOTING
- Check that you have power applied to the dimmer.
- Check that all light fixtures are functional.
- Check the fuses.
- Check the control signal cable
- Check the settings of the dimmer DIP Switches
- Check the console setup for correct patching.
REPAIR
The only user serviceable parts are externally accessible fuses. Replace
fuses ONLY with 10 Amp, 250VAC, fast blow fuses. Internal service on the unit
by other than Lightronics authorized agents will void the warranty. If service
is required, contact the dealer from whom you purchased the dimmer, or
Lightronics, Service Department, 509 Central Drive, Virginia Beach, VA 23454.
Tel: 757 486 3588.
WARRANTY INFORMATION AND REGISTRATION – CLICK LINK BELOW
www.lightronics.com/warranty.html
LMX CHANNEL ASSIGNMENT SETTINGS
The DIP Switch Setting column shows the positions of the DIP switches on the
dimmer. The Start Channel column shows the resulting channel assignment for
the first channel of the dimmer
EXAMPLE: If an LMX dimmer’s DIP switches are set to then the first channel of
the dimmer will respond to LMX channel 45. The remaining dimmer channels will
respond to LMX channels 46, 47, 48 …etc.
www.lightronics.com
Lightronics Inc.
509 Central Drive, Virginia Beach, VA 23454
Tel: 757 486 3588
Version 2.2
06/01/2022
Documents / Resources
|
LIGHTRONICS AS42L 4 X 1200W COMPACT
DIMMER
[pdf] Owner's Manual
AS42L 4 X 1200W COMPACT DIMMER, AS42L 4 X 1200W COMPACT DIMMER, COMPACT
DIMMER, DIMMER
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References
- Lightronics - Complete Lighting and Control Systems
- Lightronics Lighting Control Product Warranty Information
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