|
|
 |
|
|
|
.
E2 (4E1) Opti-Multiplexer -
Technical Specifications
Valiant E2 (4E1) Opti-Multiplexer - 8Mb/s Optical Line
Transmission and 2/8 Mbps Digital Multiplexer.
 VCL - E2, Opti-Multiplexer (4E1) is an Integrated
OLTE and multiplexer / demultiplexer unit, based on PDH (Plesiochronous Digital Hierarchy)
technology. It multiplexes four 2.048 Mbps (hereafter referred to 2Mbps) E1 tributaries
into a single 8 Mbps, E2 stream and then transports it as an optical signal on a Single
Mode, 1300nm optical fiber cable, without the use of ant signal repeaters up to a distance
of over 50 KM (Optical Loss Budget ³ 30dBm). The muldex also does the reverse processing i.e.
demultiplexing a received optical signal into four 2Mbps E1 tributaries.
|
|
|
|
|
|
| 2Mbps, E1 Electrical Interface |
| Number |
1 |
Maximum Output
Jitter |
£ 0.05 UI |
| Normal Bit Rate |
2048Kbps |
Maximum
Input Jitter |
| Bit Rate
Tolerance |
± 50ppm |
20Hz to 93Hz |
1.5UI |
| Termination
Impedance |
120 Ohms |
700Hz to 100Hz |
0.2UI |
| Line Code |
HDB3 |
Connectivity |
Wire-Wrap
Connectors |
| Frame Structure |
As per G.704 |
Cable |
120 Ohm balanced |
| Electrical
Interface |
As per G.703 |
Permissable
Attenuation |
6dB (max) @ 1024
KHz |
| Return
Loss at Input Port |
| 51.2
Khz to 102.4 Khz |
>12dB |
| 102.4KHz
to 2048 Khz |
>18dB |
| 2048
Khz to 3072 Khz |
>14dB |
| 8 Mbps, Optical Interface |
| Transmitter: |
Type of
Transmitter |
Class I Laser |
| Number |
1 |
| Nominal bit rate |
8.448 Mbps, +/-30PPM kbps |
| Transmit wavelength |
1310nm |
| Transmit output |
0dBm to -3dBm (average) |
| Extinction ratio |
>1:10 |
| Transmit Spectral Width |
<4nm |
| Receiver: |
| Number |
1 |
| Receiver sensitivity |
-37 dBm (typical)
-36 dBm (minimum) |
| Receiver wavelength |
1310 nm |
| Operating wavelength range |
1280 - 1335 nm |
| Reveiver dynamic range |
£ 20 dBm |
| Optical connectors |
FC-PC connector |
| Safety: |
| Class I
Laser |
| Meets the
optical safety requirements: G.958, IEC-825-1 |
| Auto Laser
Shut Down, in case of Laser Break |
| Power
Supply |
| -48VDC (-40 to -60VDC) Input |
| Alarms |
External
Alarms: Audio and Visual |
| Connectors |
2Mbps ports Wire-Wrap,
Balanced Pair-120 Ohms |
| 8Mbps optical FC/PC |
The power supply module accepts-48VDC
input and provides 5V output required for the operation of the card.
External Interfaces
& Connectors
VCL Opti-Multiplexer unit provides the
following interfaces to the external world:
- 4, Primary rate 2Mbps & 120 Ohms balanced E1 interfaces
- 1300nm, Single Mode optical fiber interface, Tx and Rx
through FC/PC Connectors
- -48V input for on-board power supply
- RS232 interface for connection to Network Management System,
used for configuration and monitoring of the Opti-Multiplexer system.
- 2 External alarm extensions for visual and audible alarms.
These alarm condition except PSU failure,
are extended to the bay top by two potential free make contacts. These alarms, optionally,
are also transmitted over the RS232C serial link.
Related Links
|
|
About Us
| Contact Us | Products | Whats New
| Press | E-mail
Please
click here to read our Notices of Copyrights and Trademarks
© Valiant Communications Limited, 1997-2008. All rights
reserved.
E-mail: Contact Us
Web Site: http://www.valiantcom.com |
|
