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 Echo Canceller 1xE1
 IQCST offers a compact, robust and cost effective
E1 echo canceller solution in 19 inch, 1U high (44mm height) chassis (accommodates 1,
E1 Echo Canceller with telnet, per shelf). Echo cancellation on each channel is 64ms Bidirectional/
128ms Unidirectional echo tails - user selectable.
The E1 Echo Canceller solutions are ideal for long distance telephony, GSM, CDMA, TDMA, VoIP,
satellite and radio communication applications. The Echo Canceller equipment offers fault
recovery feature. It offers automatic by-pass upon power-supply failure (i.e. it offers
E1 circuit by-pass in the event of power supply failure).
Technical Specifications
| Network Interface |
| Number of Interfaces |
• 1 Input - RJ-45
• 1 Output - RJ-45
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| Line Rate |
• E1 - 2 048 Mbps |
| Line Code |
• HDB3 as per ITU-T G.703, G.704 |
| Frame Structure |
• as per ITU-T G.704 |
| PCM Encoding |
• A-Law as per ITU-T G.711 |
| Signaling |
• 30B+D PRI ISDN (Euro ISDN)
Signalling
• 31B - 31 voice channels
with out-of-band Signaling
• R2 CAS Signalling
• SS7 Signaling (on any user selected
time-slot)
• All Signaling options are
user selectable/ user programmable
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| PCM Sampling Rate |
• 8000 Samples/sek. |
| Jitter Tolerance |
• as per ITU-T G.832 |
| Output Jitter |
• < 0,05 UI (in the frequency range
of 20Hz ÷ 100kHz) |
| Nominal Line Impedance |
• 100 Ohm balanced RJ 45 |
| Echo Canceller |
| Echo Tail cancellation |
• up to 64 ms Bidirectional
• up to 128 ms Unidirectional
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| ERLE (Echo Return Loss Enhancement) |
• > 35dB (with 6dB ERL) at -10dBm0
• > 65dB with NLP enabled
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ERL
(Echo Return Loss) |
• Selectable Threshold Levels Options:
0dB, 3dB, 6dB |
| Transmit/Receive Levels (Programmable) |
• Selectable Levels Options:
-12, -9, -6, -3, 0, +3, +6, +9 |
ERL
(Echo Return Loss) |
• Selectable Levels Options:
0dB, 3dB, 6dB |
| Monitoring and Control |
• Local - RS232 serial interface
• Remote - telnet over LAN/ TCP-IP link
(10/100BaseT)
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| Local and Remote Provisioning |
• CLI (text commands) and GUI |
| Power Consumption |
| Input Voltage |
• - 48 VDC |
| Current |
• 0,15 A |
| Power Consumption |
• 6 W |
| Miscellaneous |
| Environmental-Operational |
• 0°C ÷ 50°C |
| Humidity |
• 5% ÷ 95%, non-condensing |
| Mechanical Specifications |
• width: 480 mm
• depth: 260 mm
• height: 44 mm
|
| Weight |
• 4 kg |
* Informations on this site are based on producer's data.
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2012 © Cyfrowe Systemy Telekomunikacyjne Sp. z o.o.
Siedziba: ul. Szkotnik 2B, 33-100 Tarnów, tel.: 014 637 66 20, fax: 014 637 66 21
Oddział: ul. Legionów 100B/82, 81-472 Gdynia, tel/ fax: 058 660 44 60
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