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Electronic Theatre Controls Inc

Sensor Touring Rack CEM Classic Data Backplane Pinout-Public

In Sensor Touring Racks, ETC no longer uses the J2 connector for data input into the CEM.
This is now accomplished through the J3 connector which is the smaller one in the middle of the CEM backplane.

This connector is smaller and much less prone to damage from pulling CEM's in and out and jarring them around as the touring rack travels.
The J3 pinout is the same as the J2 pinout.

J3 pins are numbered as follows:

Top row left to right (top of PCB) 1 3 5 7 9 11 13
Bottom row left to right (bottom of PCB) 2 4 6 8 10 12 14

Pinout is as follows:

Pin Signal
1 DMX A -
2 DMX A +
3 DMX A/B Common
4 Panic In (Usually switched with Pin 6)
5 Beacon Drive
6 Panic +10 VDC (Usually switched with Pin 4)
7 Panic Out Common
8 Panic Out 12Vdc (Used to drive Panic indication LED's/lamps)
9 DMX B -
10 DMX B +
11 ETCLink Voltage +12V DC
12 ETCLink Voltage Common
13 ETCLink Data
14 ETCLink Data
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