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Siemens IK PI · 2015
profinet/工业以太网
Industrial Ethernet Switches
SCALANCE X-300 managed
2
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设计
The SCALANCE X-300 Industrial Ethernet switches with rugged
金属外壳已优化用于安装在标准的DIN导轨上
和S7-300导轨。在各个位置的直接壁挂是
also possible. Thanks to the S7-300 housing dimensions, the
设备适合集成到自动化解决方案中
带有S7-300组件。
The switches have:
•
连接冗余功率的4针端子块
supply (2 x 24 V DC)
•
Row of LEDs for indicating the status information
（电源，链接状态，数据流量，故障，冗余管理器，
standby manager)
•
一个2针端子块，用于连接孤立的信号
接触
•
SELECT/SET key for on-site configuration of the signaling
接触
•
Slot for optional C-PLUG swap medium on the rear of the
在发生故障时容易更换的设备
The SCALANCE X-300 switches are available with the following
port types:
•
10/100BaseTX, RJ45 connection;
RJ45插座，自动检测数据速率
（10或100 mbit/s），具有自动启动和自动覆盖
function for the connection of IE FC cables via
IE FC RJ45插头180至100 m。
•
10/100/1000basetx，RJ45连接;
RJ45插座，自动检测数据速率
(10 or 100 or 1 000 Mbit/s), with Autosensing and
Autocrossover function for the connection of
- IE FC电缆2x2 for 100 mbit/s通过IE FC RJ45插头180
up to 100 m
- IE FC电缆4x2 for 1000 mbit/s通过TP线和IE FC
RJ45 Modular Outlet up to 100 m
-IE FC cables 4x2 for 1 000 Mbit/s via IE FC RJ45 Plug 4x2
up to 100 m
•
1000BaseSX, SC connections;
SC ports for direct connection to the Industrial Ethernet glass
fiber-optic cable up to 750 m (multimode)
•
1000BaseSX, SC connections;
SC ports for direct connection to the Industrial Ethernet
glass fiber-optic cable up to 10 km (singlemode)
•
1000BaseLX, SC connections;
SC ports for direct connection to the Industrial Ethernet
玻璃光纤电缆高达40 km（单仪）
•
1000BaseLX, SC connections;
SC ports for direct connection to the Industrial Ethernet
玻璃光纤电缆高达70公里（单仪）
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功能
•
Increase of the network performance;
by filtering the data traffic on the basis of the Ethernet (MAC)
address of the data terminals, data traffic remains local;
only data intended for users of another subnetwork is
forwarded by the switch.
•
Simple network configuration and network expansion;
the switch saves the data received at the ports and forwards
it automatically to the destination address. Collision detection
(CSMA/CD method) does not restrict the expansion of the
网络以外的端口。
•
Limitation of the error propagation to the affected subnetwork;
the SCALANCE X-300 switches only forward data with a valid
校验和校园（CRC）。
•
Integration of existing subnetworks with 10 Mbit/s into
Fast Ethernet networks with 100 Mbit/s;
在扭曲的配对端口，尺度X-300开关
自动识别传输的导体对
and reception (Autocrossover), the data transfer rate of 10 or
100或1 000 mbit/s，以及全双工和半双工
模式（自动参与）。
•
尺度X-300开关的高性能连接
with 1 Gbit/s;
SCALANCE X-300 switches have Gigabit Ethernet ports
for connecting the switches to each other or with other
Gigabit-Ethernet-enabled components
（例如尺度X-400，X-500）
•
Integrated redundancy manager for constructing Fast
Ethernet and Gigabit Ethernet ring topologies with high-speed
media redundancy.
•
High-speed standby redundancy;
several network segments such as rings can be intercon-
nected redundantly with SCALANCE X-300 by means of the
集成待机功能。两个X-300开关是
在环中配置为主人和从属，并连接
via two links to the other ring. The redundant connection can
以1 000 mbit/s的形式制作。
•
Redundant interfacing to higher-level networks;
SCALANCE X-300 switches support the standardized redun-
跨树协议（STP）和快速的dancy程序
跨越树协议（RSTP）。这使一个子网
be connected redundantly to a higher-level network with
减少重新配置时间的要求（按顺序
of seconds). By supporting the Multiple Spanning Tree
协议（MSTP），网络也可以分为多个
子发现。
•
虚拟网络（VLAN）的支持；
用于构建工业以太网网络的快速增长
number of users, a physically existing network can be divided
进入几个虚拟网络。
•
当多播协议(如视频负载限制trans-
mission) are used;
through learning the multicast sources and targets (IGMP
窥探，igmp Querier），尺度X-300开关可以
also filter multicast data traffic and therefore limit the load in
the network.
•
Configuration of the ports for terminals that support authenti-
阳离子按照IEEE 802.1X。身份验证是由
必须配置适当的半径服务器的手段
直接可以通过网络访问。
•
Support of the DHCP Option 82, 66, 67
(Dynamic Host Configuration Protocol);
这有助于终端的IP地址分配
取决于连接的开关端口。IP地址是
通过DHCP服务器分配，必须配置
accordingly and must be able to be reached via the network.
© Siemens AG 2014