dmx patch

There is a handy iOS app that I use called, DMXCal. It allows you to input the DMX address and see the dip switches that are needed to turn on for your device.

With that being said, 1536 is DMX address 3/512, meaning you are spanning to DMX universe. There for the fixture will not work. 1537 would be address 4/1, which would be address 1. Now depending if address 1 is switch 1 on, or if address 1 is switch 1 off, will determine you dip switch settings.

Assuming address 1 is 1 on, your first fixture would be:
1 - on
2 - 9 off

2nd fixture:
3 on, 1 -2, 5 - 9 off

3rd fixture:
1 - 3 on
4 -9 off

Happy programing :)

rose dmx512 lt 840 6a model we are using for led lights.

Is this the manual for your lights?
www.ledworldlighting.com/.../LT-840.pdf

If so it will explain the settings for any given fixture address. For a typical 3 address fixture it will use the first address for Red, the 2nd for Green and the 3rd for Blue. Just add 3; 1648, (1649, 1650,) 1651, (1652, 1653,) 1654, etc. I've even used a spreadsheet to calculate long strings of fixtures.

Is this the manual for your lights?
www.ledworldlighting.com/.../LT-840.pdf

If so it will explain the settings for any given fixture address. For a typical 3 address fixture it will use the first address for Red, the 2nd for Green and the 3rd for Blue. Just add 3; 1648, (1649, 1650,) 1651, (1652, 1653,) 1654, etc. I've even used a spreadsheet to calculate long strings of fixtures.