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T1 Echo Cancellers
Desktop Version (Modem Type)
Technical Specifications
 
Orion Telecom Networks Inc. provides robust and cost effective E1 and T1 Echo Canceller and voice quality enhancement solutions for the long distance, wireline, wireless, (GSM, CDMA, TDMA), VoIP, satellite and radio communications. The VCL-EC, T1 Echo Cancellers are offered to provide cancellation of 64ms. / 128ms. (user selectable) echo tails. The Echo Canceller equipment is



 

compliant to ITU-T G.164, G.165, G.168 (2000 / 2002) requirements for echo cancellation. The Echo Canceller solutions offers carrier-grade voice quality per AT&T Voice Quality Assessment Lab. The Echo Canceller supports fax / modem G.164 and G.165 (2100 Hz) tone disable function.

Network Interface
 
Number of Interfaces 2,1 - Input (RJ-45),1 - Output (RJ-45)
Line Rate T1 - 1.544 Mbps
Line Code B8ZS AMI (User Selectable)
Frame Structure D4, ESF (User Selectable)
PCM Encoding Law Mu Law as per ITU-T G.711
Signaling  Pass-Through: Signaling protocols supported: 24B (24 Voice Channels) with out-of-band signaling (C7 / SS7 Signaling on any user selected time-slot). 23B+D, PRI ISDN (23 Voice Channels+D Signaling Channel). D4 Robbed Bit Signaling. All signaling options are USER SELECTABLE
PCM Sampling Rate 8000 Samples / sec
Bit Rate 1544 Kbps ± 130 ppm
Jitter Tolerance As per ITU-T G.823
Output Jitter < 0.05 UI (in the frequency range of 20Hz to 100 Khz)
Nominal Line Impedance 100 Ohms Balanced RJ 45
Nominal Pulse Width 244 ns
Pulse Mask as per ITU (CCITT) Rec. G.703
Loss and recovery of frame alignment As per clause 3 of ITU (CCITT) G.732
Loss and recovery of multiframe alignment As per clause 5.2 of ITU (CCITT) G.732

Mechanical Specifications
 
Height 44.4 mm
Depth 246 mm
Width 129 mm
Weight 1.25 Kg

Echo Cancellation
 
Echo Tail Cancellation Up to 64ms Bidirectional / 128ms Unidirectional - User Selectable
Tone Disabler As per ITU-T G.164, G.165
ERLE (Echo Return Loss Enhancement) >35dB (with 6dB ERL) at 10dBm0 input
>65dB with NLP enabled
ERL (Echo Return Loss) Selectable Levels Options : 0, 3, 6 dB
Transmit / Receive Levels (Programmable) Selectable Levels Options : -12, -9, -6, -3, 0, +3, +6, +9
Comfort Noise Insertion User Selectable - Enable/Disable
Local Monitoring and Control RS232 serial interface for Management through a PC COM Port
Local and Remote Provisioning CLI (text commands) and GUI
Front Panel Indicators
  • In SYNC / Failure
  • LEDs for power on/off
Environmental-Operational 0° C to 50° C
Humidity 5% to 95%, non-condensing

AC Adapter Power Supply Specifications
 
Input AC Voltage 100 - 240 Volt AC
Range of Input Voltage 100 V To 240 V AC
Output Voltage 7.5 VDC to 9.0 V DC
Maximum Full Load Output Current 2.5 A at 7.5 VDC / 9.0 V DC
Input Voltage Reversal Protection Provided in the Card
Efficiency at full load >86%

Management Port Specifications RS232 COM Port

Serial Port: 9.6Kbps (Async). ASCII / VT100

Power Consumption of T1 Echo Canceller - Stand Alone (Desk Top Version)
 
Input Voltage = 100 - 240 Volt AC Current (in Amps.) Power Consumption (in Watts)
1 Unit              0.15          6.0

Related Links

Others Links

Technical specifications are subject to change without notice.
All brand names and trademarks are the property of their respective owners.

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::   Application Diagram  ::
 
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Orion Telecom Networks, Inc.
16810, Avenue of the Fountains,
Suite # 108, Fountain Hills, AZ 85268 U.S.A.
Phone: +1 480-816-8672,  Fax: +1 480-816-0115
E-mail: sales@oriontelecom.com
Web Site: http://www.oriontelecom.com