DMXking.com
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JPK Systems Limited
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New Zealand
0105-700-3.7
13
When a port is configured for DMX-IN sACN operation the sACN Priority can be set. This permits DMX Inputs to generate sACN
multicast or unicast streams with a specific priority.
DMX512 IN
–
UNICAST / BROADCAST / MULTICAST
When you feed a DMX512 signal into an eDMX Port configured as
DMX-IN Art-Net
the following will determine Art-Net unicast
or broadcast:
1.
If Broadcast Threshold = 0 the frame is always broadcast on the IP subnet.
2.
If Broadcast Threshold > 0 and number of detected Art-Net II/3/4 devices "subscribed" to that universe is less than the
threshold the frame is unicast to each device.
3.
If Broadcast Threshold > 0 and the number of detected Art-Net II/3/4 devices "subscribed" to that universe is greater
than the threshold the frame is broadcast on the subnet.
4.
If Broadcast Threshold > 0 and zero Art-Net II/3/4 devices are "subscribed" to that universe the frame is broadcast on
the subnet.
5.
If Fixed IP is not 0.0.0.0 the frame is only unicast to the specified IPv4 address.
As you can see there are multiple ways broadcast could occur. The implementation is done like this to ensure compatibility with
mixed Art-Net I/II/3/4 device networks but still permit unicast when Art-Net II/3/4 devices are used exclusively.
For
DMX-IN sACN
multicast frames will be generated when Fixed IP is 0.0.0.0 otherwise frames are unicast to the specified
destination.
6.
COMPATIBLE SOFTWARE
Art-Net/sACN and DMX512 are the most commonly used lighting control protocols with roots in simple theatrical light dimming.
These days almost any lighting or stage effect equipment may be controlled using DMX512 (with explicit exclusion of anything
involving potentially dangerous operations such as pyrotechnics) including moving lights, LED screens, fog machines and laser
displays.
The DMXking.com eDMX4 unit is a 4 universe Art-Net/sACN device designed for use with computer based show control software
or expansion of lighting console outputs. It replaces an entire lighting console allowing the user to perform sophisticated shows
with little more than a laptop. There are many free and commercial software packages available and by selecting Art-Net as your
DMX device compatibility is guaranteed.
Check the following page for a short list of compatible software:
http://dmxking.com/control-software
7.
TECHNICAL SPECIFICATIONS
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Dimensions: 70x68x35mm (WxHxD)
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Weight: 0.07kg
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DC Power input 8-28Vdc, 2.5W max. Typical current consumption @ 12Vdc 250mA
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DMX512 connector: RJ45 or 3 way terminal block.
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DMX512 ports are NOT isolated
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Ethernet 10/100Mbps Auto MDI-X port.
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Internal DMX512-A line biasing termination as per ANSI E1.20 RDM requirements
