ETC Alex M Alex MX - Manual (Page 14)

Wiring Working with Alex M
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Alex M
030430-150B
Alex_M_E_150C_A5.doc
Working with Alex M
Wiring
Not even Alex M lets you get away without setting up any cable connections:
• A connection to the power supply
• Connections to the required dimmer channels
This is all you need to go ahead and provide lighting with Alex M. If the
dimmers are to be controlled by external signals as well, you also need to
connect the signal source:
Control with
DMX512/1990 signal Connect DMX cables to the DMX IN and DMX
OUT sockets.
If the DMX OUT socket is left unoccupied, it must be terminated with a
resistor. Set the switch on the backplane of the device to the position "DMX
END". The DMX output socket is now terminated with 100
Ω.
Failure to apply a terminating resistor can lead to errors in DMX
transmission or make such transmission impossible altogether.
When the "DMX END" switch on
the backplane of the device is set
to this position, the DMX output
socket is terminated with 100
Ω.
Control with
0 – 10 V analog signals Connect the signal cable to the EXT socket.
For the pin assignment for the EXT socket, see page 61.