Provides voice echo cancellation of up to 64ms / 128ms
Conforms to ITU-T G.165 and ITU-T G.168
G.164 / G.165 disable tone detection
Non-Linear Processor with Comfort Noise Insertion
Narrow-Band Detector
Eliminates long echo tail.

E1 Interface at 2048 Kbps

Number of Interfaces                 2,
1 - Input (RJ-45)
1 - Output (RJ-45)
Conformity                          G.703
Frame Structure                     As per ITU (CCITT) G.704    
Signaling                         Pass-Through
PCM Sampling Rate                     8000 Samples / sec
Encoding Law                     A Law as per ITU (CCITT) G.711
Bit Rate                         2048 Kbps ± 50 ppm
Code                           HDB3
Nominal Impedance                     120 W balanced
Peak Voltage of a mark                
For 120 W Balanced interface           
3.0 V ± 0.3 V
Peak Voltage of a space
for 120 W Balanced interface            
0 V ± 0.3 V
Nominal Pulse Width                 244 ns
Pulse Mask                         as per ITU (CCITT) Rec. G.703
Output Jitter                        < 0.05 UI (in the frequency range of 20Hz to 100 Khz)
Permissible Attenuation                 6 dB at 1 MHz
Return Loss at:                    
51.2 KHz to 102.4 Khz                     > 12dB
102.4 KHz to 2048KHz > 18dB
2048KHz to 3072 Khz > 14dB
Jitter Tolerance                     As per ITU (CCITT) G.823
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

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Aries Telecom
10842, N 127th Place
Scottsdale, AZ 85259
, U.S.A.
Phone: 1-480 816 8672 Fax: 1-480-451-6693
E-mail: info@ariestelecom.com
Website: http://www.ariestelecom.com

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E1 Echo Canceller

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