IS200VRTDH1DAC控制器模块
s x序列开始时已扫描的扩展器数量。所需的模拟扫描数（包括所有扩展器的采样）等于系统中每个扩展器的扩展器x总数。在Expander的存在下，每个基础对流都会更新一次。毫秒。如果存在一个或多个扩展器，则更新时间将增加。毫秒。Ea扩展器每更新一次。x N ms，其中存在N个扩展器总数。扫描序列是自由运行的，不能与任何exrl事件同步。此外，扩展器的所有输入都将被扫描，即使它们未被使用。Alog输入系统高级F Alog八月控制器数据表F表。Alog输入Upda乘以扩展器的数量Base Upda Ra ms扩展器Upda Ra ms。连接扩展器总线并将第二个模拟扩展信号连接到基本转换器。提供s和s之间的模拟连接。这些s应与双屏蔽观察s和s上的极性并联。屏蔽必须连接在之间所有链路的两端，以便将所有板连接在一起。此外，三导体屏蔽的驾驶室可与第三个国王EXPSHLD连接和屏蔽连接一起使用。s和是扩展器差分数据总线。这是一个串行端口，允许基本转换器处理器控制扩展器。它们必须与观察极性的驾驶室连接。屏蔽是可选的；如果使用，将屏蔽接地连接至。底座转换膨胀机膨胀机护罩必须连接在图TB的每一端。扩展器总线连接F Alog输入系统高电平Alog 8月控制器数据表F机架配置控制器的高电平输入系统可由任何位的基本转换器和扩展器组成机架容量或每个基本转换器的输入。最多七个扩展器可以面对一个基本转换器，达到输入扩展器x输入+基本转换器上的输入。扩展器必须物理安装在与底座转换器相同的机架中，并且必须安装在底座转换器右侧的插槽中。这些必须彼此相邻。扩展器编号由系统根据扩展器相对于基本转换器的物理位置分配。例如，插槽中的扩展器通过下一个扩展器分配基本转换器的直接右侧，如下图所示。扩展器应位于控制基本转换器的立即右侧，在基本转换器和扩展器之间或扩展器之间放置空插槽或不同类型的插槽。控制器ag C P U E X P P S E X P E X P B A S E C O N V E R T E R贯穿图。数字分配示例意义键控Ea包括一个意义键，可防止在给定的插槽中用一种类型替换另一种类型。该键适合下面板上形状独特的区域。首次安装时，钥匙位于背板中央导轨上。拔出时，钥匙重新安装在中央导轨上，从而配置插槽仅接受相同类型。如果有必要在钥匙放置在机架中央导轨上之后改变机架中的位置，则可以通过向上推动钥匙来移除钥匙，同时将钥匙从导轨上推下。
s x number of Expander s have been scanned at whi time the sequence starts over. The number of alog scans required include sampling of all expander s is equal the tal number of Expander s x s per Expander in the sysm. With Expander s present ea base converr is updad once every . milliseconds. With one or more Expander s present this upda time increases . milliseconds. Ea expander is updad every . x N ms where N tal number of Expander s present. that the scan sequence is free running and it cant be synronized with any exrl event. Also that all inputs of an Expander will be scanned even if they are t being used. Alog Input Sysm High vel s F Alog s August Controlr Data Sheet F Tab . Alog Input Upda Times Number of Expander s Base Upda Ra ms Expander Upda Ra ms . . . . . . . . Connecting the Expander Bus s and connect the secd alog expansion sigl the Base Converr . provides the alog mon connection between s. These s should be bussed in parall with twisd shielded observing polarity on s and . The shield must be connecd at at both ends of all links between s in order connect of all boards gether. Alrly a threeconducr shielded cab can be used with the third king the EXPSHLD connection and the shield connection . s and are the expander differential data bus. This is a serial port whi allows the base converr processor control the expanders. They must be connecd with twisd cab observing polarity. Shielding is optiol; if used connect the shield GROUND at . BASE CONVERR EXPANDER EXPANDER SHIELDS MUST BE CONNECD AT EA END TB a Figure . Expander Bus Connections F Alog Input Sysm High vel s Alog s August Controlr Data Sheet F R ack Configuration A high vel alog input sysm for the controlr can consist of any bition of Base Converr s and Expander s up the capacity of the rack or a of inputs for ea Base Converr . Up seven Expander s y be inrfaced a Base Converr attain the of inputs Expander s x inputs + inputs on Base Converr. Expander s must be physically locad in the same rack as the Base Converr and must be instald in slots the right of the base converr . These s must be adjacent ea other. Expander numbers are assigned by the sysm based on the physical location of the Expander relative the base converr . For examp the Expander in the slot the immedia right of the base converr is assigned s through the next expander is assigned s through etc. as shown in the following figure. Expander s should be locad the immedia right of the controlling Base Converr with empty slots or different types locad between the Base Converr and Expander s or between Expander s. CONTROLR ag C P U E X P P S E X P E X P B A S E C O N V E R T E R THROUGH THROUGH THROUGH THROUGH Figure . Examp of Number Assignments Meanical Keying Ea includes a meanical key that prevents idvernt substitution of one type for ather in a given slot. The key fits a uniquely shaped area on the board below the . When the is first instald the key las on the backplane cenr rail. When the is extracd the key reins attaed the cenr rail thereby configuring the slot accept only identical types. If it is necessary ange the location in the rack afr the key has been lad on the cenr rail of the rack the key can be removed by pushing it upward unhook the lat whi pushing it off the rail.
