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Intelligent
E1 Channel Bank
Technical Specifications
Product
Description
Orion Telecom Networks
Inc. offers Intelligent E1
Channel Bank, VCL-CB with Voice Activity Detection (VAD) to provide voice activated
"answer supervision" and "disconnect supervision" to connect VoIP
(Voice over IP), Voice over Frame |
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Relay and Voice over ATM networks to analog PSTN
(POTS) lines that do not
provide any type of answer supervision / battery reversal functions. The interface to the analog PSTN (POTS*) lines have been ruggedized to
provide complete protection against line card failures which occur from induced voltages
from AC power lines and lightening strikes and difficult field conditions.
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Digital Interface 2.048 Mbps, E1 Interface
Number of E1 Interfaces |
1 |
Conformity (Electrical)
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G. 703 |
Frame Structure |
As per ITU (CCITT) G.704 |
Signaling |
Channel Associated
Signaling , (R2 Gen) R2 Generic in accordance with ITU-I Q.421 / Q.422 Rec. |
PCM Sampling Rate |
8000 samples/sec |
Encoding Law |
A Law as per ITU (CCITT) G.823 |
Bit Rate |
2048 Kbps ± 50 ppm |
Code |
HDB3 |
Nominal impedance |
120 W balanced (75 W
unbalanced - option on request) |
Connector |
RJ-45 (120 ohms impendence) |
Peak Voltage of a mark
For 120 W Balanced interface
75 W Unbalanced interface
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3.0 V ± 0.3 V
2.37 V ± 0.237 (Optional) |
Peak Voltage of a space
For 120 W Balanced interface
75 W Unbalanced interface
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0V± 0.3V
0V± 0.237 V |
Nominal Pulse Width |
244ns |
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 |
6dB at 1 MHz |
Return Loss at:
51.2 Khz to 102.4 KHz
102.4 Khz to 2048 Khz
2048KHz to 3072KHz |
>12dB
>18dB
>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 multi
frame alignment |
As per clause 5.2 of ITU (CCITT) G.732 |
2 Wire, Analog PSTN Interface - POTS Interface
Maximum Number of Channels |
30 |
Transmission performance |
Fully compliant to ITU (CCITT) G.712
specifications |
Line Impedance |
600W (900W optional) |
Connector |
RJ-11 |
Voice Channel Frequency |
300Hz-3400Hz |
Insertion Loss |
-2dB Nominal (User adjustable range of -2dB to
-7dB) |
Idle Channel Noise |
£-65dB |
Return Loss |
300 Hz - 600Hz -³12dB
600Hz - 3400Hz - ³15 dB |
Longitudinal Balance |
³ 46dB between 300Hz
to 3400Hz |
Ring frequency detection |
25Hz and 20 Hz |
Ring voltage detection |
³30 volts RMS |
Overload Level |
+3.14 dBm ± 0.5 dBm |
Data Transmission |
Supports V.34 modems
33.6Kbps (download data transmission rate) |
Clock Synchronization
Synchronization Sources
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Internal Clock or timing derived
From the E1 HDB3 link (Loop-Timed) |
External Clock Input |
As per ITU (CCITT) Rec G.703 |
Default Option |
Internal Clock |
Power Supply
Input DC voltage |
-48V DC (nominal) |
Range of Input |
-40V to -60V DC |
Input Voltage Reversal Protection
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Provided |
Environmental
Cooling
|
Natural, Convection cooling |
Temperature
|
0°C to 50°C, Ambient |
Mechanical Specification
Rack Mounting |
Standard 19 inch DIN rack |
Height |
3U (133.33 mm) |
Depth |
292 mm |
Width |
482 mm |
Weight |
7.50 Kgs. |
Others Links
Technical Specifications are subject to change.
All brand names and trademarks are the property of their respective owners.
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