VMIVME-3122通用電氣卡件，GE燃機模塊
RMX模塊的前面板有八個LED指示燈，一個撥動開關可用于手動請求角色交換機和光收發(fā)器。角色切換角色開關是一個彈簧加載的兩位開關，處于關閉狀態(tài)。當RMX模塊該開關用作冗余鏈路，允許您手動將控制從活動控制器切換到備份控制器。要啟動角色切換，請將開關提升到打開位置至少1秒。
VMIVME-3122通用電氣卡件角色切換狀態(tài)被反跳并過濾，以防止意外激活。當RMX模塊用作通用反射存儲器網(wǎng)絡中的節(jié)點時（即不用作冗余鏈路），角色切換對模塊操作沒有影響。光收發(fā)器
光收發(fā)器有兩個“LC”型光纖端口。標有“TX”的端口是發(fā)射器和端口標有“RX”的是接收器。內(nèi)存交換模塊使用單工（單光纖）或雙工（雙光纖）聯(lián)網(wǎng)在一起多模光纖電纜。具體的電纜結(jié)構(gòu)取決于您的操作環(huán)境。對于有關光纖電纜的詳細信息，請參閱PACSystems RX7i Memory Xchange Modules用戶手冊，GFK-2300.安裝在開始之前，請確保您有以下列出的項目。
■ 具有2.00版或更高版本固件的PACSystems RX7i CPU
■ 帶電源的PACSystems Rx7i CPU機架。
■ 編程軟件：Machine Edition–Logic Developer PLC，4.5或更高版本（和PC兼容計算機）。
■ 電纜。有關詳細信息，請參閱PACSystems RX7i Memory Xchange中的“光纜和連接器”
模塊用戶手冊，GFK-2300。注：包含一個或多個內(nèi)存交換模塊的RX7i系統(tǒng)必須安裝在金屬中帶導管或等效物的外殼，以滿足輻射發(fā)射標準。有關詳細信息，請參閱PACSystems RX7i安裝手冊，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.
