Showlite HDO-16, Руководство пользователя, Страница: 28 / 31

28
5. Annex
5.1 DMX basics
In a DMX-512 connection there are 512 channels. The channels can be assigned in
any way. A device that can receive DMX 512 requires one or more consecutive
channels. The user must assign a start address to the fixture that specifies the first
channel reserved in the controller. There are many different types of DMX-
controllable devices, and all of them can vary in the total number of channels
required. The selection of a start address should be planned in advance. Channels
should never overlap. If they do, this will result in incorrect operation of devices with
incorrectly set start addresses. However, you can control multiple devices of the
same type with the same start address, as long as the DMX devices are to do
exactly the same thing. In other words, the devices are switched together and all
react in exactly the same way.
DMX devices receive data via a serial daisy chain. In a daisy chain connection, the
DATA OUT of one device is connected to the DATA IN of the next device. The order
in which the devices are connected is not important and does not affect how a
controller communicates with each device. Use an order that allows the simplest
and most direct wiring. Connect the devices using a shielded, two-conductor
twisted-pair cable with a three-pin XLR male and female connector. The shielded
connection is pin 1, while pin 2 is data negative (S-) and pin 3 is data positive (S +).
5.2 Connect Fixture
Assignment of the XLR connection:
DMX-OUTPUT DMX-INPUT
XLR connection socket: XLR connection socket:
Attention: At the last DMX device in the connection, the DMX output should be
terminated with a terminating resistor. It is best to use a suitable DMX terminator /
terminator connector.