PS-15
RTS
PS-15
RTS PS-15 Power Supply
This unit is suitable for small- to medium-sized TW Intercom Systems. Self-contained, it features two-channel operation: one “wet” channel with 24 to 32 volts DC and one “dry” channel without voltage potential. Each channel provides a switch-selectable audio termination impedance of 200 or 400Ω. It allows speech signals and DC to exist on the same wire (Channel I). The power supply’s outputs are protected against short circuit conditions with recovery being automatic and instantaneous.
A single PS-15 can power 6 to 30 user stations (depending on model and combination - see specifications). If still more user stations are needed, two PS-15 Power Supplies can be coupled together to double the powering capability: a ¼-inch 3-circuit phone jack is available on each power supply for this purpose. This connector can also be used as a one-way output port when monitoring or recording the intercom audio signals. When two PS-15 supplies are combined, toggling a rear panel switch on each supply will keep the audio level constant.
Two PS-15s can power as many stations as a PS-31 (with DC load evenly distributed between the two supplies). However, since the PS-31 supplies more voltage than the PS-15 under full load, the PS-31 is better suited to power a large system spread over a large area.
The PS-15 may be used in portable applications using optional MCP-8 channels or in standard EIA equipment racks using optional MCP-1 or MCP-2 rackmounting kits.
Product Weight: 4.68 lbs
Dimensions: 1.72”H x 8.19"W x 8.33"D
Technical Tools
PDF Documents
Manufacturer Specs
Outputs
One powered channel, CH1, (audio + DC + 200Ω/400Ω 10% termination)
One passive channel, CH2, (audio + 200/400Ω 20% termination)
Output Voltage
No Load: 32.0 +2.0. -1.0 volts
Full Load: 24.0 volts. Nominal
Output Impedance
200 or 400 Ω 20%. Switchable. On powered channel. 200 Ω. nominal is maintained from 18.0 to 33.0 volts.
Output Current
Standard Option: .9 ampere at 21/+4-2 volts. DC
*P Option (234V): .9 ampere at 21/+4-2 volts. DC
#D Option (100V): .9 ampere at 21/+4-2 volts. DC
Fault Current: 1.5 amperes at 0.0 volts. DC
Signal Level
Nominal: 2.0 volts peak to peak
Maximum: 5.0 volts peak to peak
Frequency Response
100 hertz to 20 kilohertz +1, -5 dB
Signal-to-Noise Ratio
Reference 2.0 volts. Peak to peak: 60 dB nominal
Mains Voltage
Standard: 117 volts: t10%. 50 -60 hertz
*P Option: 230 volts: ±10% 50-60 hertz
#D Option: 100 volts +10%. -5%.50-60 hertz
Mains Amperes
0.40 at 117 volts :t10%, 50-60 hertz
0.20 at 234 volts :t10%, 50-60 hertz
0.40 at 100 volts +10%, -5%,50-60 hertz
Environmental
Temperature
Operating: 32° to 122°F
Storage: -40° to 158°F
Humidity: 0 to 95%, non-condensing
Finish
Thermoplastic front panel. Aluminum case. Light gray finish.
One powered channel, CH1, (audio + DC + 200Ω/400Ω 10% termination)
One passive channel, CH2, (audio + 200/400Ω 20% termination)
Output Voltage
No Load: 32.0 +2.0. -1.0 volts
Full Load: 24.0 volts. Nominal
Output Impedance
200 or 400 Ω 20%. Switchable. On powered channel. 200 Ω. nominal is maintained from 18.0 to 33.0 volts.
Output Current
Standard Option: .9 ampere at 21/+4-2 volts. DC
*P Option (234V): .9 ampere at 21/+4-2 volts. DC
#D Option (100V): .9 ampere at 21/+4-2 volts. DC
Fault Current: 1.5 amperes at 0.0 volts. DC
Signal Level
Nominal: 2.0 volts peak to peak
Maximum: 5.0 volts peak to peak
Frequency Response
100 hertz to 20 kilohertz +1, -5 dB
Signal-to-Noise Ratio
Reference 2.0 volts. Peak to peak: 60 dB nominal
Mains Voltage
Standard: 117 volts: t10%. 50 -60 hertz
*P Option: 230 volts: ±10% 50-60 hertz
#D Option: 100 volts +10%. -5%.50-60 hertz
Mains Amperes
0.40 at 117 volts :t10%, 50-60 hertz
0.20 at 234 volts :t10%, 50-60 hertz
0.40 at 100 volts +10%, -5%,50-60 hertz
Environmental
Temperature
Operating: 32° to 122°F
Storage: -40° to 158°F
Humidity: 0 to 95%, non-condensing
Finish
Thermoplastic front panel. Aluminum case. Light gray finish.