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Electronic Theatre Controls Inc

How to turn a DMX port on and off on CEM Classic

See instructions below on how to turn off (disable) or turn on (enable) a DMX port on CEM Classic.

In 2.x software

There is a Rack Start, which is the lowest dimmer # in the rack.

To disable the port:

  1. [Setup], [2] for Rack.
  2. Press [>] until Rack start dimmer #
  3. Use keypad to enter #, Press [Enter].
  4. Press [Reset] .

Setting the port start address to 513 turns the port off. To turn the port on set it to the desired address per instructions below.

To set the start and end addresses:

  1. [Setup], [2] for Rack.
  2. Press [>] until port A start address or port B start address
  3. Use keypad to enter starting dimmer #, Press [Enter].
  4. Press [>] then use the keypad to enter the ending dimmer # for that input port.

In 3.x software

There is a menu to turn ports on and off, and two DMX modes to choose from:

  • Standard: one start address for both ports
  • Advanced: start and end addresses for ports A & B

To access the menu:

  1. [Setup], [2] for Rack.
  2. ETClink address, [>] to continue.
  3. port A start address [Enter] to change, [>] to continue
  4. Enable port A [^/v] to enable/disable, [>] to continue,
  5. Enable port B [^/v] to enable/diable, DMX Mode [^/v] to Standard/Advanced.