基于自主知识产权的集成电路;

4交换10 / 100M以太网; 半/全双工自适应性; 还支持VLAN隔离;

每一个以太网端口支持AUTO-MDIX（交叉线和直线连接线自适应性）;

提供2时钟类型：E1主时钟，E1线路时钟;

提供3种环回功能; 即E1自我循环在本端; 以太网自我循环在本端; 和以太网被责令自环的远端;

支持75|¸不平衡，并在同一时间120|¸均衡阻抗;

有以太网监控自动复位功能，设备就不会死;

与以太网数据丰富的演示功能，可以检测实时数据通信状态

支持交换1-4以太网接口功能，可以保存一个以太网交换设备;

19英寸机架选项

参数和规格
E1接口
标准：E1接口与G. 703标准兼容。
价格：为2.048Mbit /są50ppm
编码：HDB3
阻抗：75欧姆（不平衡）或120欧姆（平衡）
连接器：BNC（75欧姆）或RJ45（120欧姆）
抖动性能：根据G. 742和G. 823
10 / 100BASE-T
价格：10M / 100M，全/半双工自动适应。
协议：支持IEEE 802.3，IEEE 802.1磷，802.1Q（VLAN）
MAC地址表：4096的MAC地址。
以太网缓冲区：64Mbits SDRAM
物理接口：RJ45，支持AUTO-MDIX（跨越和直通自我适应）
尺寸
210毫米（L）x140mm（蜡质30个毫米（高）
运行环境
电压：DC-48V，输入范围：DC-36V〜DC-72V
功耗：（= 5瓦
工作温度：0℃〜50℃
储存温度：-40℃〜+ 70℃
湿度：95％
无腐蚀性和溶剂，无粉尘，无强磁场干扰。

based on self-copyright IC;

4 exchanging 10/100M Ethernet; half/ full duplex self adaptable; also supporting VLAN Isolation;

every Ethernet port supports AUTO-MDIX (crossed line and straightly connected line self-adaptable) ;

provides 2 clock types: E1 master clock, E1 line clock;

provides 3 kinds of loop-return function; namely E1 self-looping at local end; Ethernet self-looping at local end; and Ethernet being ordered to self-loop at remote end;

supports 75¦¸ unbalanced and 120¦¸ balanced impedance at the same time;

has self-reset function of Ethernet monitoring, equipment will not die;

with abundant presentation function of Ethernet data, can detect realtime data communication status

supports exchanging function of 1-4 Ethernet interface, can save one Ethernet exchanging device;

19inch rack for option

Parameter and specifications
E1 interface
Standard: E1 interface compatible with G. 703 standard.
Rate: 2.048Mbit/ są50ppm
Coding: HDB3
Impedance: 75ohm (unbalance) or 120ohm (balance)
Connector: BNC (75ohm) or RJ45 (120ohm)
Jitter Performance: According to G. 742 and G. 823
10/100Base-T
Rate: 10M/ 100M, full/ half duplex self adapt.
Protocol: support IEEE 802.3, IEEE 802.1 P, 802.1Q (VLAN)
MAC address table: 4096 MAC addresses.
Ethernet buffer: 64Mbits SDRAM
Physical interface: RJ45, support AUTO-MDIX (cross over and straight through self adapt)
Dimension
210mm (L) x140mm (Wx 30 mm (H)
Operating environment
Voltage: DC-48V , input range: DC-36V~DC-72V
Power Consumption: (=5 Watts
Working temperature: 0C~50C
Storage temperature: -40C~+70C
Humidity: 95%
No causticity and solvent, dust free, and no strong magnetic interference.