 
INTEGDIFF
04073
123, Frunze street,
Kyiv, Ukraine
tel.: (+380 44) 468-70-27
fax: (+380 44) 468-53-27
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 PCM - TESTER is a portable device designed for the control of the PCM (pulse code modulation)-highways at the 2048 Kbit/sec signal transmission speed (primary digital channel, primary digital group highway).
Devise is simple in operating and can be exploited by middle-qualified personnel.
PCM -TESTER ensures
- monitoring of digital transmission systems PCM-30 and PCM-31;
- high-ohms and matched connecting to the transmission line;
- determination of errors coefficient and quantity per code failure observation period, framing and multiframing errors, cyclic code errors CRC-4;
- choice of any channel for audio monitoring and channel signaling indication (ABCD);
- signal strength measuring for any channel interval of signaling;
- signaling bits scanning with 40ms interval and change of state recording with the time markers;
- saving the monitoring results into the memory with the time markers (upto 2000 faults in the PCM highway operation);
- transmitting the protocol of faults and ABCD signaling bits into the computer
- LED indication of the PCM system failures, as follows: NO SIGNAL, AIS, NO FRAME, NO MF, DIST ALARM, D. MF ALARM;
- nonvolatile clock calendar;
- long-term off-line operation from inline accumulator or batteries.
Specifications
Transmission speed |
2048 Kbit/sec ± 100 ppm |
Input symmetric impedance |
120 Ohm, 1 kOhm |
Code |
HDB-3, AMI |
Sensibility, no less |
30 mB |
Measuring errors coefficient: |
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10-3...10-7 |
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10-1...10-5 |
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10...10-3 |
Highway signal strength evaluation |
-30; -20; -10; 0 db |
Channel signal strength measuring |
6...-75,9 dbm0 |
Electrical parameters |
in accordance with ITU-T, G 703, chapter 6 |
Cycle structure |
in accordance with ITU-T, G 703, chapter 2, 3 |
Framing |
in accordance with ITU-T, G 703, chapter 4 |
PC connection interface |
RS232 |
The Power Supply |
6 V (4 batteries of AA type or adapter) |
Time of continuous running with the one battery set (excluding the audio monitoring regime) |
No less than 48 hours |
Service conditions: |
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from 5 to 50 Ñ |
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tup to 85% |
Electrical safety |
In accordance with IEC 348 |
Size |
196x100x40 mm |
Weight |
400 g |
Complete set:
Network adapter, measuring cable, cable for RS232 interface (by request), soft bag and pass-port.
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| News |
07.02.2003
The Exhibition "The industry Kiever".
Our stand has visitted a president of the Ukraine, a mayor of the Kiev Alexander Omelichenko and others.
21.04.2003
The Exhibition "The high technology XXI century".
Guests of our stand were a mayor of the Moscow Yuriy Luzhkov. |
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