Beijing Huahuan Electronics H0EL-EthMux V8, Руководство пользователя

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Huahuan
Beijing Huahuan Electronics Co., Ltd.
H0EL-EthMux V8 User Manual V1.1 - 1-
1.

General
1.1 Overview
Thank you for selecting the H0EL-EthMux V8 product designed and made by
Beijing Huahuan Electronics Co., Ltd. The product can be used to provide E1
communication channels over Ethernet or IP networks.
The H0EL-EthMux V8 has many optional parameters, which can be modified
by the user to suite different application requirements. Please read this manual
carefully before installing the product.
It is well known that the E1 signal comes from PCM technology which is TDM
in nature. It transmits information in a constant bit rate of E1_2048kbit/s, TDM
technology occupies fixed transmission bandwidth, with QoS features suitable for
real-time applications such as voice and video. The QoS features include short and
stable transmission delay, low jitter and wander, etc.
On the other hand, Ethernet is based on statistical multiplexing, transmitting
and exchanging information in packets. It does not take up a fixed transmission
bandwidth, which is good for achieving higher bandwidth utilization. But Ethernet
technology does not provide adequate QoS for real time applications.
Until recently, voice and data were, and still are to a large extent, transported
over two separate networks. But the requirement for both types of information to be
carried over a unified network is growing rapid. Packets over SONET/SDH
techniques to integrate date into the TDM network have been around for many
years. But for voice over packet based data networks, most of the efforts are spent
on creating special equipment that packets voice or video signals, such as VoIP
techniques.
However, to take advantage of the data network, it is neither cost effective,
nor necessary to hastily replace all the TDM based equipment with new packet
based equipment. The H0EL-EthMux V8 can be used to emulate transparent E1
channels over an Ethernet with adequate QoS, so that most of the existing E1based
applications can be readily setup over Ethernet LANs and WANs. One particular
suited application is to build E1 links with low cost wireless LAN bridges, replacing
much more costly microwave radios.
1.2 Features

User-friendly Web server supported for easy setup and maintenance

Support SNMP V1 and V2 network management

Point to point and point to multipoint supported

Uplink ports 1+1 backup supported