ETC Sensor3 CE (ESR3) Rack - Manual (Page 27)

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Control and Data Connections 19
C h a p t e r 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.
Figure 18: Single Backplane
Figure 19: Dual Backplane