The RTS PS-20 is a Two-Wire Intercom power supply. The PS-20 features two- and four-channel operation, RTS monitoring, two-channel program input, audio linking, and three-mode operation: RTS 2-channel, RTS 4-channel and Clear-Com mode. It also has double the power output of the PS-31 per channel, which will increase the number of user stations and beltpacks which can be connected substantially.
The PS-20 features two channels of communication where both channels are "wet", meaning there is power on each channel (RTS two-channel mode). In RTS four-channel mode, the audio signals and DC exist on the same wire. The PS-20 can also be switched into Clear-Com mode. The PS-20 has a 3-pin XLR (male) connector on the front of the system, where a RTS user station can connect and monitor activity on either or both channels. A single PS-20 power supply has 1.8 ampere per channel which means the user can power up more stations. If additional user stations or beltpacks are needed, two PS-20's can be joined together to double the power capability. A pair of standard stereo plug connectors are available on the back of the power supply to connect two PS-20's through audio linking as well. The PGM IN (3-pin XLR female Program Input) connector can be used to send audio to both CH 1 and/or CH 2.
RTS PS-20 Features
- Audio Linking
- Intercom Channels Connections
- Monitoring
- Program Input
- Selectable Mode Operation
- Selectable Termination Impedance
- Status Indicators
- PS-20 Power Supply1
- Input Voltage100 to 240 VAC, 50 to 60Hz
- Output Voltage28VDC to 32VDC
- Output Current1.8 Amps Maximum per channel
- Termination Impedance
- Selectable 200Ω/400Ω
- 1.8 Amps maximum per channel
- Ripple< 0.2V
- Program Input Levels
- Nominal +2dBu
- Balanced, High Impedance >10kΩ
- Two-Wire Output Levels
- Nominal 30VDC
- Unbalanced, selectable 200Ω/400Ω
- Monitor OutputNominal Gain of 0 dB for 1.0Vrms input level on the program input. 30VDC nominal, 100mA maximum.
- Audio LinkNominal input 2dBu with a Gain of 0 dB
- Connections
- Type: 3-pin XLR male (RTS 2-channel Mode)
- Pin 1: Common for Audio and DC
- Pin 2: 30VDC and Mixed Audio Channel 1
- Pin 3: 30VDC and Mixed Audio Channel 2
- Type: 3-pin XLR male (RTS 4-channel Mode)
- Pin 1: Common for Audio and DC
- Pin 2: 30 VDC and Mixed Audio Channel 1 or 3
- Pin 3: Mixed Audio Channel 2 or 4
- Type: 3-pin XLR male (Clear-Com Mode)
- Pin 1: Common for Audio
- Pin 2: 30VDC
- Pin 3: Mixed Audio Channel 1 or 2
- Type: 3-pin XLR male (RTS 2-channel Mode)
- Program Input
- Type: 3-pin XLR female
- Pin 1: Common
- Pin 2: Balanced Audio + Input
- Pin 3: Balanced Audio – Input
- Type: 3-pin XLR female
- Audio Link
- Input ¼-inch Stereo Phono Jack
- Tip: CH 1
- Ring: CH 2
- Sleeve: Ground
- Output ¼-inch Stereo Phono Jack
- Tip: CH 1
- Ring: CH 2
- Sleeve: Ground
- Input ¼-inch Stereo Phono Jack
- AC Input
- Type: Universal AC Plug
- Pin 1: Hot
- Pin 2: Neutral
- Pin 3: Earth Ground
- Type: Universal AC Plug
- Monitor Output
- Type: 3-pin XLR male (RTS 2-channel Mode)
- Pin 1: Common for Audio and DC
- Pin 2: 30VDC and Mixed Audio Channel 1
- Pin 3: 30VDC and Mixed Audio Channel 2
- Type: 3-pin XLR male (RTS 4-channel Mode)
- Pin 1: Common for Audio and DC
- Pin 2: 30VDC and Mixed Audio Channel 1
- Pin 3: Mixed Audio Channel 2
- Type: 3-pin XLR male (Clear-Com Mode)
- Pin 1: Common for Audio
- Pin 2: 30VDC
- Pin 3: Mixed Audio Channel 1 or 2
- Type: 3-pin XLR male (RTS 2-channel Mode)
- Environmental
- Operating Temperature: 0°C to 50°C (32°F to 122°F)
- Storage: -40°C to 70°C (-40°F to 158°F)
- Humidity: 0 to 95%, non-condensing
- Dimensions and Finish
- Height: 1.72 in (44 mm)—1 RU (Rack Unit)
- Width: 8.186 in (207.9 mm)
- Weight: Under 5 lbs
- Finish: Thermoplastic front panel, Aluminum case, RTS light gray paint—black silkscreen.
- Mounting: MCP style rack kit or (included rubber adhesive feet)
