3500/05-02-04-CN-00-01
3500/05-02-04-CN-00-01 There are LED indicators on the IS420ESWBH3A switch. There is a power LED and the remaining LEDs are activity and functions. 
When the LED is solid yellow it indicates that a 10 MB is being used and when solid green a 100 MB is being used, and no LED light indicates that there is no . The colors for the activity LED are also green and yellow but they will flash, when the LED flashes green it indicates that the activity is at full duplex and when flashing yellow the activity is at half duplex.
The IS420ESWBH3A switch can be mounted in a variety of ways, the switch can be DIN-rail mounted in a parallel or perpendicular application and also has the possibility to be panel mounted if needed. Please note that when the switch is DIN-rail mounted there are different clips needed which are the 259B2451BVP1 and 259B2451BVP4 clips. 工业以太网交换机IS420ESWBH3A是通用电气公司设计的Mark VIe安全控制系统的一部分。此交换机没有任何光纤端口，但有16个铜质端口，铜质端口为10/100Base TX RJ45端口。交换机的主要操作是作为一级以太网交换机执行，该交换机将集中于缓冲多播和广播数据包的能力。应该有足够的空间来允许每个端口缓冲一个数据包；如果多个传入流被发送到交换机，它只能接受多个流中的一个传入流，并将缓冲剩余的流以供稍后传输。
IS420ESWBH3A开关上有LED指示灯。有一个电源指示灯，其余的指示灯是活动和链接功能。当链路指示灯呈黄色时，表示正在使用10 MB链路，当呈绿色时，表示在使用100 MB链路，并且没有LED指示灯表示没有链路。活动LED的颜色也是绿色和黄色，但它们会闪烁，当LED闪烁绿色时，表示活动处于全双工状态，而当LED闪烁黄色时，则表示活动处于半双工状态。
IS420ESWBH3A开关可以多种方式安装，开关可以是平行或垂直安装的DIN导轨，如果需要，也可以是面板安装。请注意，当开关安装在DIN导轨上时，需要不同的夹子，即259B2451BVP1和259B2451BV P4夹子。IS420ESWBH3A InstallationInstall the switch using a DIN-rail on the control system panel for new installations. Connect the copper and/or fiber wires according to the system's redundancy and requirements. Connect the switch to the 28 V dc electricity from the power distribution board.
IS420ESWBH3A Configuration
Multiple insertions and removals are supported using RJ-45 connectors, which have a service life expectancy of 200 insertion/removal cycles. Torsion pressures are applied to connection components along any axis, as well as static tension forces caused by cable weight and cable dressing.
Mounting
The switch enclosure can be DIN-rail mounted or panel mounted (switch mounts to back wall of panel with bracket). The DIN-rail mounting system complies with vibration and shock requirements. Both mounting types allow for easy access to user connections.
Operation
A level 1 Ethernet switch's performance is mostly determined by its ability to buffer packets. When a level 1 switch receives a continuous stream of broadcast or multicast packets, it must send those packets out after they have been fully received. A single incoming stream should take up enough memory to buffer one packet, or at the very least one packet per port.
Switch Replacement
When the ESWA or ESWB is used to replace an unmanaged switch, the existing mounting brackets, which can be panel or DIN rail mounts, are used. On the present switch, there are seven screw holes for panel mounting.
IS420ESWBH3A Features
Dimensions (width x depth x height)
138 x 86 x 56 mm
CoolingConvection cooled when mounted vertically or horizontally
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FREQUENTLY ASKED QUESTIONS
What is IS420ESWBH3A?
IS420ESWBH3A is an Ethernet IONet Switch and is part of the GE Speedtronic Mark VIe gas turbine control system.
