☆型号：IC687RCM711B 冗余通信模块 同步消息提供路径
【产品详情】
IC687RCM711是一个冗余通信模块，它为从活动单元到备份单元的同步消息提供路径。 然后，这被用作在 FIP 单机架冗余系统中同步双 CPU 的一种方式。这也允许在两个单元之间传输共享 I/O 数据的路径。FIP 单机架冗余系统的单元之间的实际物理连接最多可以包含 3 英尺的总互连电缆。兼容的 CPU 包括 IC697CFR782 和 IC697CFR28。
IC687RCM711冗余通信模块在机架中占据一个插槽，并包含两个连接器。上部连接器用于连接总线变送器模块，而下部连接器未用于此目的。有五个绿色 LED 显示 RCM 模块运行状况的状态指示。它们还监视热备用 CPU 冗余系统的控制状态。
该模块还提供了一个按钮，允许用户手动将控制从活动单元切换到备份单元。这仅在备份单元准备好使用时才有效。这允许用户在系统仍然在线时保持对以前活动设备的维护。切换角色后，至少 10 秒内无法完成新切换。此 RCM 必须使用 Windows 编程或 MS-DOS 软件配置到 FIP 冗余系统中。本机需要 5V 总线，有效数据速率为每秒 500 KB。
☆型号：IC687RCM711B 冗余通信模块 同步消息提供路径
【英文介绍】
IC687RCM711 is a redundant communication module that provides a path for synchronous messages from the active unit to the backup unit. This is then used as a way to synchronize dual cpus in a FIP single-stand redundant system. This also allows the path of shared I/O data to be transferred between the two cells. The actual physical connection between the units of the FIP single-stand redundant system can consist of up to 3 feet of total interconnection cable. Compatible cpus include IC697CFR782 and IC697CFR28.
The IC687RCM711 redundant communication module occupies a slot in the rack and contains two connectors. The upper connector is used to connect the bus transmitter module, while the lower connector is not used for this purpose. There are five green leds that display status indicators for the health of the RCM module. They also monitor the control status of hot standby CPU redundancy systems.
The module also provides a button that allows the user to manually switch control from the active unit to the backup unit. This only works when the backup unit is ready for use. This allows users to maintain maintenance on previously active devices while the system is still online. After the role is switched, the new role cannot be switched for at least 10 seconds. This RCM must be configured into a FIP redundant system using Windows programming or MS-DOS software. This unit requires a 5V bus with an effective data rate of 500 KB per second.
☆型号：IC687RCM711B 冗余通信模块 同步消息提供路径
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