Our digital data transfer system provide:
1. Information transfer – from
192 kBt/s up to 2048 kBt/s, distance up to 20-30 km, depending
on the parameters of the used
copper communication line.
2. Working together with  “Terminal-002”.
3. Working together with other kinds of the communication equipment
after necessary completions introduction.
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| General transfer system structure. |
The principle of system is in SHDSL-technology
use for digital information transfer.
1. Transfer:
SHDSL transmitter (MtS170), controlled by external processor MSP430.
The transmitter input receives standard PCM signals, which are
processed, and then as TxDATA, TxFRAME, MCLK signals are input
to AFE (MtS142). The transformed signal (TCPAM) is received on
the analog signal-matching transformer (Midcom 51493R) and is in
transfer line - twisted pair of the 5th category.
2. Reception:
The Signal transferred on a wire line through the analog signal-matching transformer
is in AFE (MtS142) where it will be transformed into digital form. Pilot signals:
RxDATA, RxFRAME, MCLK. In SHDSL receiver the output signal is formed and through
PCM interface moves to the terminal.
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