Payment of the record Phobos A8
- Customer pickup,
- In detail
Vocord A8 is a payment for input of analog audiosignals. Carries out digitization, compression of audioinformation and detecting of a condition of sources of signals. Supports the tire PCI 2.3, the Bus Master mode.
The payment is used in multichannel systems of registration of audioinformation for record of signals from analog phone lines, microphones and other linear exits.
The payment of VOCORD A8 is executed on mezzanine technology and consists of the main payment and the mezzanine module. The main payment and an attic support 4 interfaces that allows to create flexibly scalable systems of record with a capacity from 4 to 128 channels on the basis of VOCORD A8.
Distinctive feature of Vocord A8 is high quality of the linear interface. With a frequency of sampling of 8 kHz signal/noise makes a ratio 78 dB. Hardware compression of a sound significantly reduces loading of the central processor and allows to create multipurpose and highly reliable systems of an audio recording.
With use of VOCORD A8 and the corresponding software of the company "-Vokord Telecom" - can be realized the demodulator and the decoder of fax transfers.
|Number of channels||8|
|Quantity of payments in the system unit||16 (at most)|
|Entrance resistance (at parallel connection)||1 megohms|
|at 8 kHz||300-3500 Hz|
|at 16 kHz||300-7000 Hz|
|at 32 kHz||300-13000 Hz|
|Sampling frequency (quantization of 16 bits)||8,16,32 kHz|
|Preamplifier of an entrance signal (with a step 1.5 dB)||To 22.5 dB|
|Ratio signal/noise||78 dB|
|Harmonious components||- 75|
|Intermodulation components||- 70|
|Voltage measurement of the line (with a frequency of updating of 200 Hz)||±-200 In with an accuracy of 0.2 V|
|Audiosignal amplitude||To ±-7B|
|The maximum amplitude of the signal transmitted to the line (the speech, inquiry of AOH, tones)||+3 dB|
|Galvanic isolation||More than 1000 V|
|Suppression of an inphase signal||80 dB|
|Processing of a sound||-|
|Depth to ARE (it is adjusted programmatically)||To 18 dB|
|Compression of the speech||G.711, GSM 6.10|
|Detecting of a calling signal (in the range from 16.7 to 100 Hz)||From 20 V|
|Support of electret microphones||-|
|Entrance type||Symmetric -|
|The detector the modem - and fax transfers||Т.30, Fax SuperG3
T.4, T.6, V.21, V.8bis, V.17, V.29, V.27ter, V34 (to 33600 bits/sec.)
|Determinant of number of the removed subscriber||AON (active or passive modes), CALLER ID|
|PCI – the tire (with a frequency of 32 MHz)||PCI 2.2 Bus Master 32 of bits|
|Form factor||PCI Half Size (150х106 mm)|
|+5 VDC||Less than 300 ma|
|±-12 VDC||+12 V – less than 200 ma,-12 V – 0 ma|
|Works||From 0 ° - C to +50 ° - C|
|Storages||From -20 ° - C to +70 ° - C|
|Humidity||From 8 to 80%|
|° C||Windows 2000/XP/2003|