Soh USB-DMX512 User manual

English
Module USB – DMX512
www.soh.cz
User’s manual
Introduction……………………………………………………………..…….2
Driver installation………………………………………………….…….…....2
Features of module USB - DMX512…….…………..………………………. 4
Package contents..……………………………………………………………. 4
Connecting the DMX512 cable ………………….…………………………...4
Linking of the DMX512 units.…………..…………………………………....6
Dimensions..………...…...……………………………………………….…...7
Technical specifications....……………………………………………….…...7

Module USB - DMX512 http://www.soh.cz/
Page 2
USB - DMX512 Introduction
Module USB - DMX512 enables connection of the DMX512 data bus
using USB. It is possible both to send data and to receive data from an external
device. The number of bytes in a packet sent via data bus is not limited. It is
therefore possible to use all 512 channels or a different number of them
depending on the program used.
USB - DMX512 Driver installation
Driver installation for Windows XP and Windows 2000
The drivers can be found on web http://drivers.svetla.org or
http://www.ftdichip.com. To install the driver execute „setup.exe“ file.
Installation will be completed in the background. After installation the
connected USB - DMX512 interface will be automatically detected.

Module USB - DMX512 http://www.soh.cz/
Page 3
Successfully installed hardware can be found in the “Device Manager” as
“USB Serial Converter”.
Installation can also be done through ”Control Panel“ using “Add
hardware” item. In this case first extract “CDM_2_06_00_WHQL_Certified
.zip” file to your chosen directory and then select this directory when asked for
the location of the driver files. This way not only the control device named as
“USB Serial Converter”, but also the “WDM driver” (for direct access to
module USB - DMX512) can be installed. The device should function correctly
with both types of drivers.

Module USB - DMX512 http://www.soh.cz/
Page 4
USB - DMX512 Features of module USB - DMX512
•Full 512 channels support
•Transmitting/Receiving via DMX512 data bus
•Full speed DMX512
•USB 2.0 compatible
•Low consumption from USB
•Working temperature range -40°C to 85°C
USB - DMX512 Package contents
Module USB - DMX512 with connectors
Manual for module USB - DMX512 usage
USB - DMX512 Connection of the DMX512 cable
The following picture shows how to connect the cable. The grounding
outlet of the XLR connector is not used for grounding. Therefore do not connect
ground to the metal connector cover, it can cause short circuit or unexpected
behavior. Ground should be connected to pin number 1.

Module USB - DMX512 http://www.soh.cz/
Page 5
Connection of the DMX512 cable
When connecting longer cables, it is necessary to use a terminator (for
impedance adaptation of the wiring) at the end of the wiring. Terminator is 120
Ohms resistor, ¼ W connecting pins 2 and 3 on the XLR connector socket
(DATA+ to DATA-). Resistor can be soldered in to the XLR socket and
connected to the last DMX unit. This lowers the probability of unexpected
behavior of units.
Some manufactures use 5-pin XLR DMX connector for data transfer
instead of a 3-pin one. Standard 5-pin XLR connector can be implemented into a
3-pin one using cable adapter. Connection of pins for a 5 and 3-pin XLR
connector is shown in the following table.
Conductor 3-Pin XLR Female 5-Pin XLR Male (In)
Shield / Ground Pin 1 Pin 1
Data Compliment (- signal) Pin 2 Pin 2
Data True (+ signal) Pin 3 Pin 3
Not Used Do Not Use
Not Used Do Not Use
Connection of the XLR connector

Module USB - DMX512 http://www.soh.cz/
Page 6
USB - DMX512 Connection of the DMX512 units
Any hardware working with the DMX512 protocol can be connected to
the module USB - DMX512. Interconnection of the individual modules is done
as a data bus, where a terminator has to be connected to the last unit. Do not
connect devices in a star topology or other unsuitable one. The control of units is
independent and their address is set up according to a table provided by the
manufacturer.
Diagram of a connection of modules using DMX512

Module USB - DMX512 http://www.soh.cz/
Page 7
USB - DMX512 Dimensions
USB - DMX512 Technical specifications
Input connector USB B
Output connector 3 pin XLR
Supply of the module from USB
Current consumption 70 mA
Weight 0.012 kg
Working position any safe position
Output DMX512 (EIA-485)
Guarantee 30 months
Driver download drivers.soh.cz