57520001-A/2 卡件备件
本手册中使用的安全符号停止：
告知操作员不应执行任何操作或程序。操作可能导致人员受伤或死亡，或可能导致部分或全部系统损坏或毁坏。警告：表示危险。它要求注意程序、做法或条件，如果不正确执行或遵守，可能导致人员受伤或死亡。警告：表示危险。它要求注意操作程序、实践或条件，如果不正确执行或遵守，可能导致系统的部分或全部损坏或破坏。注：表示重要信息。它要求人们注意一个程序、一个实践、一个条件或类似的东西，这是必须强调的。
The safety symbol used in this manual stops:
Inform the operator that no operations or procedures should be performed. Operation may result in personal injury or death, or damage or destruction of part or all of the system. Warning: indicates danger. It requires attention to procedures, practices or conditions that, if not properly implemented or followed, may result in personal injury or death. Warning: indicates danger. It requires attention to operating procedures, practices or conditions. If they are not correctly implemented or followed, they may cause partial or total damage or destruction of the system. Note: Important information. It requires people to pay attention to a procedure, a practice, a condition or something similar, which must be emphasized.
基本操作的默认出厂配置是
由于接收器信号（光）丢失或没有有效的同步模式，自动绕过端口，无需通过以太网端口或RS232端口进行任何接口。每个端口附近的三个LED可直观指示端口状态。使用以太网端口和标准Web浏览器，或使用RS232端口和任何RS232终端接口，可以获得状态信息和操作模式。状态信息包括：•已安装收发器的检测•信号（光）的检测•有效同步模式的检测（多个或单个）集线器组件允许基于单个/多个同步模式的缺失或信号（灯）的丢失来绕过端口。此外，无论状态指示灯如何，每个端口都可以手动强制激活或旁路。最后，可以在不关闭整个集线器的情况下单独禁用每个端口发射机。
The default factory configuration for basic operation is
Because the receiver signal (optical) is lost or there is no effective synchronization mode, the port is automatically bypassed, and no interface is required through the Ethernet port or RS232 port. Three LEDs near each port visually indicate port status. Use Ethernet port and standard Web browser, or use RS232 port and any RS232 terminal interface to obtain status information and operation mode. The status information includes: • Detection of installed transceivers • Detection of signals (optical) • Detection of effective synchronization modes (multiple or single) Hub components allow bypassing ports based on the loss of single/multiple synchronization modes or the loss of signals (lights). In addition, each port can be manually forced activated or bypassed regardless of the status indicator. Finally, each port transmitter can be disabled individually without shutting down the entire hub.
