Telex SS-2002RM Intercom System User Manual


 
16
Specifications
General
Power Requirements:
Phantom Power: +24 VDC nominal, 175 mA
Local Power: +12 to +15 VDC, 250 mA
Dimensions: See dimension drawings.
Environmental Requirements:
Storage: -20°C to 80°C; 0% to 95% RH, non-condensing
Operating: -15°C to 60°C; 0% to 95% RH, non-condensing
Dynamic-mic Headset/Handset
Microphone: 50 to 200 ohms, dynamic (balanced or unbalanced)
Headphones: 150 to 600 ohms, monaural
Connector Type: XLR-4M
Pin 1 - Microphone Low
Pin 2 - Microhpne High
Pin 3 - Headphone High
Pin 4 - Headphone Low
Panel Microphone
Built-in Microphone:
2.2k ohms, electret (-44 dB nominal), Omnidirectional
Gooseneck Microphone:
Connector Type: ¼” Threaded TRS
5k ohms, electret (-47 dB nominal)
Tip - Microphone High (+12 VDC bias)
Ring - Common
Sleeve - Common
Compatible with MCP-90 Series Microphones
Intercom Channels, Balanced mode (SW1 set to BAL position)
Output Level: 1Vrms nominal
Input Impedance: 300 ohms
Bridging Impedance: greater than 10k ohms
Sidetone: -40 dB, 35 dB adjustable range
Call Signaling:
Send: 20 kHz ±100 Hz, 0.5 Vrms ±10%
Receive: 20 kHz ±800 Hz, 100 mVrms
Mic-Kill Detect Frequency: 24 kHz ±800 Hz, 100mVrms
Noise Contribution: less than -70 dB
Common Mode Rejection Ratio: greater than 50 dB
Connector Type: Six-position push type terminal block
Pin 1 - Audio and DC Common
Pin 2 - Local power (+12 to +15 VDC) If needed
Pin 3 - Intercom channel 1 audio low and +24 VDC power
Pin 4 - Intercom channel 1 audio high and +24 VDC power
Pin 5 - Intercom channel 2 audio low and +24 VDC power
Pin 6 - Intercom channel 2 audio high and +24VDC power
Intercom Channels, Unbalanced mode (SW1 set to UNBAL position)
Output Level: 0.70 Vrms ±10%
Input Impedance: 200 ohms
Bridging Impedance: greater than 10k ohms
Sidetone: -40 dB, 35 dB adjustable range