功能
作为传统的电信服务的成本有效的解决方案迁移到IP分组
网络技术; BD-4E1-IP采用over IP技术创新TDM;它
通过现有的以太网或IP网络传输传统的E1 / T1数据。
BD-4E1-IP是新一代的TDM通过IP设备与IP电路仿真的那
支持4个E1 / T1和以太网或IP两个本地以太网端口运输
网络。上行端口和用户数据端口符合IEEE 802.3，个10 / 100BaseT
自动感应以太网端口。
国家的最先进的设计，提供了与准确的定时信号最高的可用性
和数据比特流重构。预定义的系统参数配置，根据
不同的应用要求;最终简化了安装过程，并保存
维护成本。
电信和企业用户可以节省大量的接入和设备成本，并产生
新的收入超过现有的以太网网络，提供不同类型的服务。也是
适用于连接到无线设备实现的E1 / T1的快速部署
服务。一个特殊应用是构建低成本无线局域网网桥E1 / T1链路。
更换更昂贵的微波无线电。运营商可以利用BD-4E1-IP提供
通过有线或无线分组网络传统TDM服务。
特征
支持，方便安装和维护1.用户友好的Web服务器
2.点对点和点对多点的支持
3. 4个E1 / T1端口支持E1或T1容易被Web管理器中选择
4.上行链路端口，1 + 1备份支持
5.稳定的E1 / T1时钟恢复，低抖动和漂移
对于E1 / T1通道6.低处理延迟，高带宽使用效率
7.抗丢包，与PCM帧同步保护
8.用户自定义封装的数据包大小为不同的应用
9.足够的抖动缓冲抵抗包延迟变化（PDV）
10.本地以太网端口吞吐量限制，保证E1 / T1的QoS
对于故障排除11.本地和远程E1 / T1 LOS和AIS和丢包指示和 保养。

12.支持级联连击超过4个E1 / T1端口

技术规格

技术规格

项目	描述
模型	BD-4E1-IP	2上行链路（1 + 1），4个E1 / T1线路，2用户数据端口
接口	上行	符合IEEE 802.3遵守
	E1 / T1端口	4个E1或T1 4端口支持 与G. 703符合 阻抗：E1-120O / T1-100O或75O
	用户数据端口	2用户数据端口支持 符合IEEE 802.3遵守 10 / 100Mbps自适应自动感应 全双工/半双工自动感应 Web管理器支持
功率	供应	-48V直流或220V（110V）AC电源或双电源
		+ 24VDC
	消费	=10W
工作环境	温度	0~ 50�
	相对湿度	= 90％（无冷凝）
尺寸	宽x高x深（mm）：	440点¯x44点¯x230

点对点应用

相关链接：
是什么在IP和E1转以太网转换器的TDM之间的区别？

Functions
As a cost effective solution for the traditional telecom services migrate to the IP packet
networking technology; BD-4E1-IP adopts the innovative TDM over IP technology; it
transports the legacy E1/ T1 data through the existing Ethernet or IP network.
BD-4E1-IP is the new generation of the TDM over IP equipment with IP circuit emulation that
supports transportation of four E1/ T1 and two local Ethernet ports over Ethernet or IP
network. The uplink ports and user data ports are IEEE 802.3 compliant, 10/100BaseT
auto-sensed Ethernet port.
The state-of-the-art design provides the highest availability with the accurate timing signal
and data bit stream reconstruction. Predefined system parameter profiles that according to
different application requirement; ultimately simplify the installation process and saving the
maintenance cost.
Telecom and Enterprise users can save a lot of access and equipment costs and generates
new revenue by offering different types of service over existing Ethernet networks. It is also
suitable for connecting to the wireless equipment to achieve fast deployment of E1/ T1
services. One particular application is to build E1/ T1 links with low cost Wireless LAN bridges.
replacing much more costly microwave radios. Operators can use BD-4E1-IP to provide
legacy TDM services over wired or wireless packet network.
Features
1. User-friendly Web server supported for easy setup and maintenance
2. Point to point and point to multipoint supported
3. Four E1/ T1 Ports supported, E1 or T1 easy selected by Web Manager
4. Uplink ports 1+1 backup supported
5. Stable E1/ T1 clock recovery, low jitter and wander
6. Low processing delay for E1/ T1 channels, high bandwidth usage efficiency
7. Resist to packet loss, with PCM frame synchronization protection
8. User definable encapsulation packet size for different application
9. Enough jitter buffer to resist packet delay variation (PDV)
10. Local Ethernet port throughput limiting, assuring E1/ T1 QoS
11. Local and remote E1/ T1 LOS and AIS and packet loss indication for trouble-shooting and maintenance.

12. Support cascade concatenate for more than 4 E1/ T1 ports

Technical Specifications

Technical Specifications

Item	Description
Model	BD-4E1-IP	2 Uplink (1+1) , 4 E1s/ T1s, 2 User Data Port
Interfaces	Uplink	Comply with IEEE 802.3
	E1/ T1 Port	4 E1 or 4 T1 Ports Supported Comply with G. 703 Impedance: E1-120O/ T1-100O or 75O
	User Data Port	2 User Data Ports Supported Comply with IEEE 802.3 10/100Mbps auto-sensed Full/ Half Duplex auto-sensed Web Manager Supported
Power	Supply	-48V DC or 220V (110V) AC or dual power supply
		+24VDC
	Consumption	=10W
Working Environment	Temperature	0~ 50�
	Relative Humidity	=90% (non-condensing)
Dimension	W x H x D (mm) :	440 x 44 x 230

Point to Point Application

Related Link:
What is the difference between TDM over IP and E1 to Ethernet converter ?