DMX dimmer pack with RDM and 16 bit dimming

788-LD+, DMX dimmer pack with RDM

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788-LD+

Software

Overview
The 788-LD+ is a four 5 Amp channel compact DMX dimmer pack that can be used in any DMX-512 environment. The CE qualified dimmer can control the intensity of (or switch) four 5 Amp channels in 8 or high resolution 16 bit mode, complies to "DMX512-A", ANSI E1.20 RDM, and is conduction cooled (no fan).

(Click on image to get a large one)

High resolution setting
The 788-LD+ (version 2) can be set to 16 bit mode, in which it can dim from 0 through 100% in 1024 steps instead of 256. This makes very smooth dimming of e.g. FL tubes and LED possible, but uses 8 DMX addresses for the four channels. The high resolution mode can be set via option H=1, while H=0 set the pack to the default 8 bit resolution.

Note: The v2 can be recognized, as it has the XLR connectors behind the front panel, as in the picture on top.

DMX setting
The 788-LD+ can be set to any DMX address using the LED display (which is auto turned off) and two buttons. The channel options can also be set this way.

RDM, Remote Device Management support

The 788-LD+, with firmware v5 or later has ANSI E1.20 RDM support. This means that with a suited RDM controller, you can configure the pack (start DMX address, 8/16 bit personality, dim/switch channel personalities, etc.) from a distance location. Even the triac temperatures, and overloads can be seen on your (e.g. Enttec or AL) RDM controller. So, now you can put your dimmer near the lamps, and don't need to climb anymore to set the DMX start address!

Applications
The 788-LD+ DMX dimmer pack is ideal for controlling simple off-the-shelf halogen lights, but works equally well with professional lighting equipment. Inductive loads (like low voltage halogen lights, air vents or neon lights) are dimmed perfectly, without annoying hums or damage to the transformers.

Protection
The DMX dimmer pack is fed through a single 100-240 Volt AC line, it has no fuses but uses a state of the art electronic protection scheme against short circuit and overload. Sensors in each filter coil monitors temperature overloads, while the total current is also measured.

Pricing
Attractively priced at €320 plus shipping, including GST-18/3 plugs, safety cord and hook & loop straps for truss mount.

Ordering, Manual, Questions?.

Specifications of 788-LD+

Capabilities

4 independent channels through DMX-512 protocol. 8 DMX addresses are used in 16 bit mode (high resolution).
Dim, switch, off or on mode for each channel.
0 to 100% dimming in 256 or 1024 steps.
5 Amp per channel.
Both ordinary and halogen light (or other inductive loads).

Protection

No fuses.
Thermal protection scheme.
Short circuit protection.
No replaceable parts inside
Shock resistant, extruded aluminium housing.

Power supply

100-240V AC, 50/60Hz, 16A.
Max. load 5 Amp per channel at 25º C.
Green LED information display.
Ambient temperature 0...+40º C.

Connectors

Two 5-pole XLR DMX connectors.
Four GST18-3 socket outlets.

Size and weight

Height: 56 mm (2.2 in).
Width: 105 mm (4.1 in).
Depth: 229 mm (9.0 in).
Weight: 1.9 kg (67 oz).

DMX-512, lighting protocol support

DMX-512 USITT 1990, DMX512-A.
Full ANSI E1.20 RDM support
Green DMX signal indication.
Address setting with display and buttons.
Address range 1...509.
Address usage: 4/8 channels.

Package extras

Safety cord.
Hook and Loop straps.
4 GST18-3 plugs.
User manual.

Other features

Isolated DMX, no more ground loops.
Very compact.
Produced under ISO 9001 quality control.
No fans, very low noise.

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