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8, E1 Echo Cancellers
With Voice Quality Enhancement (VQE)
With tail-displacement (0ms to 896ms)
Technical Specifications

E1 Interface at 2048 Kbps
 
Number of Interfaces 16, E1 Interfaces, 8 - Input (RJ-45), 8 - Output (RJ-45)
Line Rate E1 - 2.048 Mbps
Line Code HDB3 as per ITU-T G.703, G.704
Framing Format As per ITU-T G.704: FAS, FAS + CRC-4, CAS, or CAS + CRC-4
Facility Protection Metallic bypass relays for failsafe operation in the event of power supply failure
PCM Encoding Law A Law as per ITU-T G.711
Signaling Protocols Pass-Through: Signaling protocols supported:
  • 30B+D PRI ISDN (Euro ISDN) Signaling
  • 31B (31 voice channels) with out-of-band Signaling
  • SS7 Signaling (on any user selected time-slot)
  • R2 CAS Signaling
  • CAS, C5, CCS, Q50 (AB/CD)
  • C7, PRI ISDN (30B+D)
  • All Signaling options are User Selectable / User Programmable
PCM Sampling Rate 8000 Samples / sec.
Bit Rate 2048 Kbps ± 50 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 120 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

Power Supply Specifications

Input DC Voltage - 48V DC (nominal)
Range of Input Voltage - 40V to -60V DC
Output Voltage + 3.3V
Maximum Full Load Output Current 4A at +3.3V
Input Voltage Reversal Protection Provided in the Card
Over Current Protection > 4A for +3.3V
Short Circuit Protection Current limit - 4A. Recovers on removal of short
Under Voltage < 2.9V
Over Voltage 3.7V
Efficiency at full load >86%
Ripple at full load <5mVrms
Spike at full load <50mV

Echo Cancellation

Echo Tail Cancellation Up to 128ms. Bi-directional (near-end and far-end)
Tone Disabler As per ITU-T G.164, G.165
ERLE (Echo Return Loss Enhancement) >35 dB (with 6dB ERL) at - 10 dBm0
>65 dB with NLP enabled
ERL (Echo Return Loss) Selectable Threshold 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
Remote Monitoring and Control Ethernet (10BaseT) interface for remote LAN Management and Control
Local and Remote Provisioning CLI (text commands) and GUI
Front Panel Indicators
  • In SYNC / Failure
  • LEDs for power on/off
Environmental Operational 00 C to 500 C
Humidity 5% to 95%, non-condensing
Voice Quality
  • Acoustic Echo Control (AEC)
  • Adaptive Noise Reduction (ANR)
  • Adapting Listener Enhancement (ALE)
  • Automatic Level Control (ALC) G.169

Management Port Specifications 10BaseT LAN Management Port (with Telnet)

Network Interface RJ-45 Ethernet 10BaseT or 100 BaseT-TX (auto sensing)
Compatibility Ethernet Version 2.0 IEEE802.3
Protocols Supported ARP, UDP/IP, TCP/IP, Telnet, ICMP, SNMP, DHCP, BOOTP, TFTP, Auto IP, SMTP and HTTP
LEDs 10Base-T & 100Base-TX Activity, Full/half duplex
Management Serial login, Telnet login, GUI
EMI Compliance
  • Radiated & conducted emissions - complies with Class B limits of EN55022:1998
  • Direct & Indirect ESD - complies with EN55024:1998
  • RF Electromagnetic Field Immunity - complies with EN55024:1998
  • Electrical Fast Transient/Burst Immunity - complies with EN55024:1998
  • Power Frequency Magnetic Field Immunity - complies with EN55024:1998
  • RF Common Mode Conducted Susceptibility - complies with EN55024:1998

Ordering Information

Sr. # Product Description Part #
1 VCL ECTM 8 x VQE & E1 Echo Cancellers Per Chassis VCL-EC-E1-8

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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8 E1 Echo Canceller with VQE - Data Sheet (PDF 176KB)
8 E1 Echo Canceller with VQE - Product Overview
8 E1 Echo Canceller with VQE Presentations (PPS)
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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