Polycom realpresence group series

Polycom, Inc. 421
Polycom RealPresence Group Series
Specifications
This chapter includes information about system specifications. For back panel views of systems and for
details about the various connections available on each back panel connector, refer to the Polycom
RealPresence Group Series Administrator Guide at support.polycom.com
Inputs/Outputs
The table below contains audio specifications for RealPresence Group Series systems.
Audio Specifications for RealPresence Group 500 Systems
Characteristic Value
Maximum Input Level
0 dBFS, Analog Inputs 0 dBV (1.0 V
RMS
), ± 1 dB
Input Impedance
Analog Inputs 20kW, ± 5%
Maximum Output Level
Line Output (≥600 W load): +6 dBV (2.0 V
RMS
), 1 dB
Output Impedance
Line Output 150, ±5% Ohms
Signal-to-Noise Ratio
Either analog audio input routed to
Main Output:
Any digital audio input routed to any
digital output:
>85 dB, A-weighted
>95 dB, A-weighted
Dynamic Range
Either analog audio input routed to
Main Output:
Any digital audio input routed to any
digital output:
>85 dB, A-weighted
>95 dB, A-weighted
Crosstalk and Feed-Through
Any input or output channel to any
other channel
≤-80 dB, 20 Hz to 20 kHz