RTS Systems PS31 Intercom Power Supply
The Model PS31 supplies 32 volts regulated DC power to each of three intercom channels. It has short circuit and thermal overload protection, with automatic recovery when the fault is removed.
Specifications :
- Channels : Three
- Connectors :
- Six XLR-3 type connectors (2 channel)
- Three XLR-4 connectors (three channel)
- One XLR-3 type connector (program input)
- DC Output Voltage (each channel) : 32 volts nominal
- Line Terminating Impedance (each channel) : 200 ohms, switchable to 400 ohms when operating two supplies in parallel
- Output Current Ratings (per channel)
- Max before fault indication: 1.5 amps
- Sustained Overload 50° C ambient: 2.0 amps
- Max before foldback limiting: 2.5 amps
- Short circuit current: 0.5 amps
- Startup current: 0.5 amps
- Max Total Sustained Current (50° C ambient) 2.0 amps
- Intercom Audio :
- Level : 2 volts pp nominal
- Head Room : 6 dB minimum
- Frequency Response : 75 Hz to 20 kHz (-3 dB) unloaded
- Signal to Noise and Hum Ratio (Ref to 2V pp) : -60 dB
- Program Input : Balanced or unbalanced, transformer isolated, program assignable to channels 1-3
- Program Input Sensitivity : 28 dBm to +14 dBm (Ref. 600ohm) for 2 volts pp on RTS line
- Program Input Impedance : 10,000 ohms
- Program Frequency Response (-3 dB) : 100 Hz to 20 kHz input to RTS line.
