Power supply supplies 4 isolated channels of intercom system phantom power to down line components. It used as a stand alone power supply to supply 4 independent partyline channels. Or, use it in conjunction with an ES-4000A expansion station to create additional intercom channels when using a US-2002/PS-2001L or US-2002/SPS-2001 master station configuration.
- Channel status indicators
- Instantaneous auto-reset
- Intercom channel connectors
- Balance/Unbalance selector switch
- Clear-Com compatible