PP845觸摸顯示屏,PP845使用方法教程
冗余通信模塊GFK-1446通信模塊1998年2月，用力拉動(dòng)電路板，將其從背板連接器上卸下。D沿卡導(dǎo)軌滑動(dòng)板，然后將其從機(jī)架上卸下。狀態(tài)指示模塊頂部的五個(gè)綠色LED提供狀態(tài)信息，如圖3所示。PP845通電、配置電路板、RCM中沒(méi)有診斷故障、與其他RCM建立通信（鏈路）時(shí)沒(méi)有診斷故障以及鏈路上沒(méi)有通信故障時(shí)，頂部LED（電路板正常）亮起。
其他LED（LOCAL READY、LOCAL ACTIVE、REMOTE READY和REMOTE ACTIVE）指示熱備用CPU冗余系統(tǒng)中主設(shè)備和輔助設(shè)備的控制狀態(tài)。有關(guān)每個(gè)指示燈的詳細(xì)說(shuō)明，請(qǐng)參閱《熱備用CPU冗余用戶指南》。單元選擇按鈕模塊上的一個(gè)按鈕，按下該按鈕至少1秒后釋放，如果兩個(gè)單元都準(zhǔn)備就緒，PP845觸摸顯示屏則允許您手動(dòng)將控制從活動(dòng)單元切換到備用單元。切換角色后，系統(tǒng)至少10秒鐘內(nèi)不允許再次切換。
Redundancy Communications
Module
GFK-1446
Communications Modules
February 1998
and pull the board firmly to remove it from the
backplane connector.
D
Slide the board along the card guide and remove it
from the rack.
Status Indications
The five green LEDs at the top of the module provide
status information as shown in figure 3. The top LED
(BOARD OK) is ON when power is applied, the board is
configured, there were no diagnostic failures in the RCM,
no diagnostic failures when establishing communications
(the link) with the other RCM, and no failures in
communications on the link.
The other LEDs (LOCAL READY, LOCAL ACTIVE,
REMOTE READY, and REMOTE ACTIVE) indicate the
control status of the Primary and Secondary units in a Hot
Standby CPU Redundancy system. For detailed
descriptions of each of these LEDs, refer to the Hot
Standby CPU Redundancy User’s Guide.
Unit Selection Pushbutton
A pushbutton on the module, which when depressed for at
least 1 second then released, allows you to manually
switch control from the active unit to the backup unit if
both units are ready. After switching roles, another switch
is not allowed by the system for at least 10 seconds.
