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 voltages |
+ 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 |
Others Links:
VoIP SS7 and C7 Solution
E1 VOIP-GSM Gateway
GSM Gateways / GSM Channel Banks
Echo Cancellers
Digital Access Cross Connect Switch (DACS)
Groomers (Hi-Z Non-Instrusive Monitoring)
Multiplexers
Technical specifications are subject to change without
notice.
All brand names and trademarks are the property of their respective owners.
|
