The CI-1 provides inputs for two 24V power supply circuits to drive the LSI-16(e). This may facilitate standards compliance by providing a means of redundant CI-1 power connections.
Each power supply must be capable of 24V DC, 15Watts, 2.5A. The Ground 1 and Ground 2 connections are internally connected together and to system ground.
The VRef connection may be used as a voltage source for pull-ups on required Fault Inputs or Alarm Outputs. This output is current limited at 100mA.
Loss of power to either power supply input will result in the Vocia System detecting a General Fault and the GF Fault Output of the CI-1 closing.
Refer to CI-1 and LSI-16 manuals for more information.
1. Dual / Redundant Power Supply
If standards compliance is required for an installation, dual power supply connections must be connected to each of the two power supply inputs.
2. Single Power Supply
If standards compliance is not required for an installation, a single power supply connection can be paralleled between the two power supply inputs to avoid generating a Fault signal.
