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Chapter 4
Control and Data Connections
Sensor3 racks support a variety of control and data connections on the CEM3 backplane. CEM3
backplanes have connectors for:
• Two DMX512 Cables (Universes)
• External Panic Circuit Activation and Indication
• Remote Redundant Tracking selection switch (Dual Backplane Only)
• Ethernet Network
• Station Wiring
Dual and Single Backplane Differences
To use dual control modules your rack must be fitted with a dual tracking backplane. Racks without
dual tracking may have an empty second slot, or use the second slot to hold a network switch. The
exception is ESR3-12 racks, which only have space for a single control module.
Racks with a dual backplane also have a three position switch which allows manual switching of
control of the rack to the top CEM3, the bottom CEM3, or for automatic switching between the two.
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Figure 1: Single Backplane
Figure 2: Dual Backplane
Sensor3 CE Rack (ESR3) Installation Manual
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