How To Install The Unit; Lamp - JB Systems DMX512 User Manual

5.5 DMX512 Connection
The DMX512 is widely used in intelligent lighting control, with a maximum of 512 channels.
1. If you use a controller with 5 pins DMX output, you need to use a 5 to 3 pin adapter-cable.
2. At last unit, the DMX cable has to be terminated with a terminator. Solder a 120 ohm 1/4W
resistor between pin 2(DMX-) and pin 3(DMX+) into a 3-pin XLR-plug and plug it in the
DMX-output of the last unit.
3. Connect the unit together in a "daisy chain" by XLR plug from the output of the unit to the
input of the next unit. The cable can not be branched or split to a "Y" cable. DMX512 is a
very high-speed signal. Inadequate or damaged cables, soldered joints or corroded
connectors can easily distort the signal and shut down the system.
4. If one fixture in the chain is not working all the fixtures after that point will continue to work
normally because the DMX signal will always pass through each fixture.
5. Each lighting unit needs to have an address set to receive the data sent by the controller.
The address number is between 0-511 (usually 0 & 1 are equal to 1).
6. The end of the DMX512 system should be terminated to reduce signal errors.
7. 3 pin XLR connectors are more popular than 5 pin XLR.
3 pin XLR: Pin 1: GND, Pin 2: Negative signal (-), Pin 3: Positive signal (+)
5 pin XLR: Pin 1: GND, Pin 2: Negative signal (-), Pin 3: Positive signal (+)

3. How To Install The Unit

3.1 Lamp

In case of replacement of the lamp or maintenance, do not open the
fixture within 15 minutes until the unit cools down after switching off.
Lamp:
MSD 250/2 (AK-250)
CDM-T150 (AK-150)
1. Always switch off the main supply and never handle the lamp or luminaries when is
hot.
2. Do not touch the bulb with bare hands. If this happens, clean the lamp with denatured
alcohol and wipe it with a lint free cloth before installation.
3. Never operate the lamp without appropriate shielding.
4. Make sure the lamp is located in the center for the best spot.
Diagram for Lamp changing
5D
AK-250 AK-150