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Installation
UltraVoice Remote Interface (UVRI-B)
Federal Signal www.fedsig.com
Terminating Unused Inputs and Outputs
Unused inputs and outputs must be terminated.
To terminate unused inputs and outputs:
1. Connect the unused inputs to the unused outputs using a 1 kΩ and 2.2 kΩ resistor as
shown in Figure 7.
2. Connect the commons together.
3. Connect the input through a 1 kΩ resistor to the output.
4. Connect a 2.2 kΩ resistor across the output.