• Single (Hx1) or two-line (Hx2) capacity with standard analog I/O (1 each send and receive in/out for Hx1, 2 each for Hx2).
• Convenient switchable mic/line input.
• AES/EBU digital audio I/O option available at time of order, or as a field upgrade kit.
• Our most advanced digital POTS hybrids ever, with DSP algorithms optimized for superior performance with today’s wide variety of incoming call types.
• Front-panel send and receive audio metering.
• Telos DDEQ (Digital Dynamic EQ) and adjustable smart-level AGC ensure spectrally consistent audio from call to call — even on notoriously tough cellular callers.
• Excellent trans-hybrid loss of >55dB.
• Smooth, proven, symmetrical wide-range AGC by the audio processing experts at Omnia Audio.
• Studio adaptation and a subtle, inaudible pitch shifter to prevent feedback in open-speaker studio environments.
• Precision adjustable caller override.
• Analog I/O 24-bit A/D/A sample rate conversion, 20 dB headroom from +4 dBu nominal levels.
• AES/EBU I/O sample rate converters accept 32, 44.1, and 48 KHz rates. Clock for outputs may be sourced from the AES inputs or internally-generated at 48 KHz.
• Incredible dynamic range of > 92 db (analog in to analog out, studio loop mode,
  10 hz – 20 khz A-weighted)
• Auto-Answer with selectable ring count and disconnect-signal detection.
• Call screening and line-hold features.

General 

• Telos 3rd-generation Adaptive Digital Hybrid.
• Telos Exclusive Feedback Reduction Functions.
• Send-to-Caller Processing: High-pass Filter, Frequency Shifter, AGC/Limiter, Sample Rate Conversion (with AES option).
• Receive-From-Caller Processing: High-pass “Hum” Filter, Smart AGC / Platform Leveler, Noise Gate, Telos DDEQ (Digital Dynamic Equalization) 3-band Adaptive Spectral Processor, Sample Rate Conversion (with AES option)

Analog Inputs

• Send Analog Inputs: 1 for Hx1, 2 for Hx2 (one per hybrid)
• Connector : XLR Female, Pin 2 High (Active Balanced with RF Protection)
• Input Range: Selectable between MIC and LINE levels
• Line Input Level: Adjustable from -10dBV to +8 dBu (nominal)
• Analog Clip Point : +21 dBu
• Impedance: Bridging, > 50 Ohms
• Analog-to-Digital Converter Resolution: 24 bits

Analog Outputs

• Receive Analog Outputs: 1 for Hx1, 2 for Hx2 (one per hybrid)
• Connector: XLR Male, Pin 3 High (Active Balanced, RF suppressed
• Output Level: Nominal +4 dBu, fixed
• Impedance: < 50 Ohms
• Digital-to-Analog Converter Resolution: 24 bits
• Headroom Before Clipping: 20 dB headroom above 4 dBU nominal levels

AES3 Digital Inputs/Outputs (optional)
Plug-in module converts standard analog XLR inputs and outputs to AES3 (one input or output on left channel of AES stream)

• Conforms to AES3 standard
• Sample rates: 32kHz to 48kHz.
• Rate conversion: Input and output, independently selectable
• Output Clock: AES input or 48kHz internal.
• Input Level: Nominal at -20 dBFs.
• Output Level: Nominal at -20 dBFs

Audio Performance

• Frequency Response: 200 to 3400 Hz, +/- 1 dB
• THD+N: < 0.5% THD+N using 1 KHz sine wave
• Dynamic Range: Analog in to Analog out, studio loop mode, 10Hz-20Khz. A-weighted: > 92 dB
• SNR: Analog output, referred to -12dBm phone line signal (+4dBu studio out), 10Hz-20Khz a-weighted: > 72 dB
• Trans-Hybrid Loss: Analog phone line with ducking, gate, AGC, EQ
• all OFF relative to +4dBu input level: >55 dB

Analog Telephone Line Connectivity 

• Universal interface for worldwide application. Programmable loop current, ring signaling, and flash time. Includes caller ID decoding using Bellcore 212 modem standard.

Power Supply 

• Type: Internal auto-ranging, 90–265 VAC auto-switching, 50–60 Hz.
• Power consumption: 100 Watts