Inputs; Outputs; System - Polycom SoundStructure C16 Hardware Installation Manual

Hardware Installation Guide for the Polycom SoundStructure
Thermal Sensors' Operating Temperature Ranges
Sensor Normal (Green)
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2
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Inputs

● Phantom power: 48 V DC through 6.8 kOhm series resistor per leg, 7.5 mA per audio channel,
software selectable
● Analog input gain: -20 to 64 dB on all inputs in 0.5 dB steps, software adjustable
● Maximum input amplitude: +20.4 dBu, 1% THD + N
● Nominal level: 0 dBu (0.775 Vrms)
● Equivalent input noise: <-122 dBu, 20-20,000 Hz, Rs=150 Ohms (1%)
● Input impedance: 10 kOhms
● Input EMI Filter: Pi filter on all audio inputs

Outputs

● Output gain: -100 to 20 dB in 1 dB steps, software adjustable
● Maximum output amplitude: +23 dBu, 1% THD + N
● Nominal output level: 0 dBu (0.775 Vrms)
● Output impedance: 50 Ohm, each leg to ground, designed to drive loads > 600 Ohms
● Output EMI filter: Pi filter on all audio outputs

System

Valid values for all channels
Unless noted, all values are valid for all channels at 0 dB input gain.
Warning
● Frequency response: 20-22,000 Hz, + 0.1 /- 0.3 dB
● Idle channel noise: <-109 dB FS no weighting, 20-20,000 Hz, -60dB FS, 997 Hz input signal, 0 dB
gain
● Dynamic range: >109 dB FS no weighting, 20 - 20,000 Hz, -60 dB FS, 997 Hz input signal, 0 dB gain
● Linearity: 0 dB FS to -122 dB FS +/- 1 dB
● THD+N: < 0.005%, -20 dB FS input signal
● Common mode rejection ratio: <-61 dB, 20-20,000 Hz, no weighting
● Cross talk: <-110 dB, 20-20,000 Hz, 1kHz, channel-to-channel
● Latency: Mic/Line inputs to outputs: 20 ms, AEC and NC processing enabled
● Acoustic echo cancellation span: 260 ms
Polycom, Inc.
Warning (Yellow)
° C
50 59
° C
69 79
° C
53 58
Error (Red)
° C ° C
60+
° C ° C
80+
° C ° C
59+
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