The RTS US-2002 intercom user station is designed for stationary use by personnel who may require selective access to two intercom channels. It can be rackmounted or used as a desktop station. For rackmounting, optional hardware is required. For desktop use, four rubber feet are supplied.
RTS MS-2002 Features
- Speaker Station or Headset Station
- Use the built-in speaker for listening and add an optional MCP-90 series Gooseneck Panel Microphone for talkback. You can also turn off the speaker volume, and plug in headsets for private communication.
- Voice Activated Microphone (VOX)
- Separate controls adjust the voice activation level for the headset microphone and panel microphone inputs.
- Public Address (PA) Output, with PA key
- Use your intercom microphone to talk over a PA system.
- Back-lit Keys
- Improves visibility in low-light
- Binaural (Stereo) Listening with External Powered Speakers
- You can connect external powered speakers and then monitor channel 1 and 2 as separate right and left audio.
- MS-2002 2-Channel User/Main Station1
- Power Requirements
- Phantom Power: 24 VDC nominal (18 to 30 VDC), 65 to 150mA
- Local Power: 15 VDC, 65 to 150 mA
- Dimensions: 1.75” (44.5 mm) high 8.25” (209.5 mm) wide 10.31” (261.9 mm) deep
- Weight: approximately 2lb (0.9 kg)
- Environmental Requirements
- Storage: -20°C to 80°C; 0% to 95% humidity, non-condensing
- Operating: 0°C to 50°C; 0% to 95% humidity, non-condensing)
- Dynamic-Mic Headset Microphone: 50 to 200Ω, dynamic (balanced or unbalanced)
- Headphones: 150 to 600Ω, monaural
- Connector Type: XLR-4M
- Pin 1: Mic low
- Pin 2: Mic high
- Pin 3: Headphone low
- Pin 4: Headphone high
- Panel Microphone or Electret-mic Headset
- Microphone: 5kΩ, electret (-57 dB)
- Headphones: 150 to 600Ω, monaural
- Connector Type: IKP12 (MCP-90 series, stereo plug connector)
- Program Input
- Input Level: 100mV maximum
- Voltage Gain: 25 ±3 dB
- Output Level : 1.0 Vrms nominal, 2.3 Vrms maximum
- Input Impedance: 75kΩ
- Common Mode Rejection: >50 dB
- Connector Type: DB9F
- Pin 1: Ground
- Pin 2: Program 1 input low
- Pin 3: Program 2 input low
- Pin 4: NC
- Pin 5: NC
- Pin 6: Program 1 input high
- Pin 7: Program 2 input high
- Pin 8: NC
- Pin 9: NC
- Intercom Channels, Balanced Mode (SW2 set to BAL position)
- Output Level: 1 Vrms nominal
- Input Impedance: 300Ω
- Bridging Impedance: >10kΩ
- Sidetone: 35 dB adjustable range
- Call Signaling
- Send: 20 kHz ±100 Hz, 0.5 Vrms ±10%
- Receive: 20 kHz ±800 Hz, 100 mVrms
- Mic-Kill Frequency
- Send: 24 kHz ±300 Hz, 0.5 Vrms ±10%
- Detect: 24 kHz ±800 Hz, 100 mVrms
- Noise Contribution: <-70 dB
- Common Mode Rejection Ratio: >50 dB
- Connector Type: One XLR-3M and XLR-3F pair, wired in parallel, for each channel
- Pin 1: Common
- Pin 2: Intercom audio low and +24 VDC input
- Pin 3: Intercom audio high and +24 VDC input
- Intercom Channel, Unbalanced Mode (SW2 set to UNBAL position)
- Output Level: 1 Vrms ±10%
- Input Impedance: 200Ω
- Bridging Impedance: >10k ohms
- Call Signaling
- Send: 11 ±3 VDC
- Receive: 4 VDC minimum
- Connector Type: One XLR-3M and XLR-3F pair, wired in parallel, for each channel
- Pin 1: Common
- Pin 2: +24 VDC input
- Pin 3: Intercom audio high
- PA Output
- Output Level: 235 mVrms nominal
- Connector Type: 3.5mm Stereo Phone Jack
- Tip: PA output high
- Ring: Not used
- Sleeve: Common
- Speaker Output
- Output Level: 1.0 Vrms
- Output Impedance: 1kΩ nominal
- Frequency Response: 200 Hz to 8 kHz +1/-3dB
- Connector Type: RCA Phono Jack
- Tip: Speaker output high
- Sleeve: Common
- Expansion Input /Output Type: 3.5 mm stereo phone jack
- Tip: Talk output
- Ring: Listen input
- Sleeve: Common
- External Power
- Type: 3.5 mm power jack
- Internal pin: positive (+)
- External shell: negative (-)
- Headphone Amplifier
- Voltage Gain: 30 ±3 dB
- Maximum Output: 250 mW ±10% into 150Ω, 65 mW ±10% into 600Ω
- Frequency Response: 200 Hz to 8 kHz +1/-3db
- Incoming Call Beep Tone: 2 kHz, at the headphones
- Total Harmonic Distortion: < 0.2% at 200 mW
- Sidetone: 18 ±2 dB, adjustable
- Panel Microphone Amplifier
- Voltage Gains:
- Mic to CHN 25±3 dB, before limiting
- Mic to Headphone; adjustable, 45 dB ±10% maximum, into 150Ω
- Mic to PA; 15 ±3 dB, 235 mVrms ±10%
- Frequency Response: 200 Hz to 8 kHz +1/-3dB
- Total Harmonic Distortion: < 0.2% at CHN output
- VOX Range: -75 to -30 dB, -60 dB factory set
- Voltage Gains:
