VMIVME-3122通用电气卡件，GE燃机模块

RMX模块的前面板有八个LED指示灯，一个拨动开关可用于手动请求角色交换机和光收发器。角色切换角色开关是一个弹簧加载的两位开关，处于关闭状态。当RMX模块该开关用作冗余链路，允许您手动将控制从活动控制器切换到备份控制器。要启动角色切换，请将开关提升到打开位置至少1秒。

VMIVME-3122通用电气卡件角色切换状态被反跳并过滤，以防止意外激活。当RMX模块用作通用反射存储器网络中的节点时（即不用作冗余链路），角色切换对模块操作没有影响。光收发器

光收发器有两个“LC”型光纤端口。标有“TX”的端口是发射器和端口标有“RX”的是接收器。内存交换模块使用单工（单光纤）或双工（双光纤）联网在一起多模光纤电缆。具体的电缆结构取决于您的操作环境。对于有关光纤电缆的详细信息，请参阅PACSystems RX7i Memory Xchange Modules用户手册，GFK-2300.安装在开始之前，请确保您有以下列出的项目。

■ 具有2.00版或更高版本固件的PACSystems RX7i CPU

■ 带电源的PACSystems Rx7i CPU机架。

■ 编程软件：Machine Edition–Logic Developer PLC，4.5或更高版本（和PC兼容计算机）。

■ 电缆。有关详细信息，请参阅PACSystems RX7i Memory Xchange中的“光缆和连接器”

模块用户手册，GFK-2300。注：包含一个或多个内存交换模块的RX7i系统必须安装在金属中带导管或等效物的外壳，以满足辐射发射标准。有关详细信息，请参阅PACSystems RX7i安装手册，GFK-2223。

The front panel of the RMX module has eight LED indicators, a toggle switch that can be used to manually 

request a role switch, and an optical transceiver. 

Role Switch 

The Role switch is a spring loaded two-position switch that rests in the OFF state. When the RMX module is 

being used as a redundancy link, this switch allows you to manually switch control from the active controller to 

the backup controller. To initiate the switching of roles, lift the switch to the ON position for at least 1 second. 

The role switch state is de-bounced and filtered to prevent accidental activation. 

When the RMX module is used as a node in a general-purpose reflective memory network (i.e. not used as a 

redundancy link), the Role switch has no effect on module operation. 

Optical Transceiver 

The optical transceiver has two “LC” type fiber optic ports. The port labeled “TX” is the transmitter and the port 

labeled “RX” is the receiver. 

Memory Xchange modules are networked together using either simplex (single fiber) or duplex (dual fiber) 

multimode fiber optic cables. The specific cable construction depends on your operating environment. For 

details on fiber optic cables, refer to the PACSystems RX7i Memory Xchange Modules User’s Manual, GFK-

2300.Installation 

Make sure you have the items listed below before you begin. 

■ A PACSystems RX7i CPU with release 2.00 or higher firmware 

■ A PACSystems Rx7i CPU rack with power supply. 

■ Programming software: Machine Edition – Logic Developer PLC, version 4.5 or later (and a PCcompatible computer). 

■ Cables. For details, see “Fiber optic Cables and Connectors” in the PACSystems RX7i Memory Xchange 

Modules User’s Manual, GFK-2300. 

Note: RX7i systems that include one or more Memory Xchange modules must be installed in a metal 

enclosure with conduit or equivalent to meet radiated emission standards. For details, refer to the 

PACSystems RX7i Installation Manual, GFK-2223.