Type of the trunk:
|
PCI
|
Quantity of channels on one printed-circuit-board
|
2, 4, 6, 8, 10, 12
|
Maximum quantity of printed-circuit-boards in one system block
|
11
|
Types of channels:
|
Analog telephone, linear
|
Type of connection:
|
Parallel / consistent with transformer galvanic isolation
|
ADC type:
|
16- digit
|
ADC changeable frequency of digitization:
|
8, 16, 32, 64 кHz
|
Changeable sensitivity (scale of transformation): dB:
|
0 dB ± 3 1 time
6 dB± 1,5 2 times 12 dB ± 0,75 4 times 18 dB ± 0,375 8 times 20 dB ± 0,3 10 times 26 dB ± 0,15 20 times 32 dB ± 0,075 40 times 38 dB ± 0,0375 80 times |
AGC type:
|
Program
|
Frequency band of the telephone lines coordination block:
|
0,2 7,6 kHz
|
ADC frequency band is defined by digitization frequency
|
8000 Hz ...........from 200 Hz to 3400 Hz
16000 Hz .........from 200 Hz to 7600 Hz 32000 Hz ........ from 200 Hz to 14200 Hz |
Input resistance of telephone adapters (DC):
|
more than 9 МОм
|
Input resistance of telephone adapters (AC):
|
more than 10 кОм
|