Grass Valley Thunder 80 v.1.0 - Manual (Page 60)

44
Specifications
Mechanical/Environmental
Output Impedance: ......................................... 33Ω ±5% @ 1kHz, balanced, AC coupled
Maximum Output Level (clip): ..................... +24dBu, ±.2dB
Frequency Response: ...................................... +0/-3dB @ 12Hz to 100Hz @ R
load
≥600Ω
Note: Frequency response values stated in the “Unity to +50dB” gain(s) section above
can be achieved when the output load impedance is high, i.e. ≥10kΩ
Phantom Power, Switchable
Output Voltage: ................................................. 48Vdc ±10%
Output Current: ................................................. 2mA ±10% typical per input connector
Output Short Circuit Current: ....................... 10mAdc maximum per input connector
Source Resistance: ............................................ 6.8kΩ ±1% per leg
Power Consumption
AC Line Input Voltage: .................................... 90Vac to 240Vac @ 50/60 Hz
AC Line Input Current: .................................... 100mAac maximum @ 120Vac
Intercom Expansion Panel
4-Wire Module
Input Impedance: ................................................... 600Ω ±5% @ 1kHz, Balanced, AC Coupled
Maximum Input Level (clip): ............................... +10dBm ±.5dB @1kHz
Frequency Response: ............................................ ±.5dB, 50Hz to 20kHz
Signal to Noise Ratio, Referred to +10dBm: . >85dB unweighted, 20Hz to 20kHz;
>100dB, A-weighting
Total Harmonic Distortion: ................................. ≤.01% @ 1kHz @ +6dBm;
≤.05%, 20Hz to 20kHz
Intermodulation Distortion: ............................... ≤.003% @ 20dBu, SMPTE-DIN Method
Common Mode Rejection Ratio: ....................... ≥50dBu, 20Hz to 20kHz
2-Wire Module
Clear-Com/TW (2-wire) Module
Standard Clear-Com® Party Line Interface; “CC” “MODE” selected
Channel 1 audio on XLR-A pin 3, Channel 2 audio on XLR-B pin 3
Audio Level (properly nulled): ................ 2VP-P ±5%, 70Hz to 20kHz
Channel 1 ....................................................... 30Vdc +0/-8Vdc on XLR-A pin 2,
Channel 2 ....................................................... 30Vdc +0/-8Vdc on XLR-B pin 2, only when the
“Power” switch is in the “WET” position
Termination: .................................................. ≈200 ohm; termination engaged only when
the “Power” switch is in the “WET” position