关闭34908A继电器并保持关闭状态

我正在尝试对晶圆上的轨道测试进行连续性和隔离。
为此设计了具有76个探针触点的晶圆探测器。
我刚购买了34972a，带有两个34908a多路复用卡（80个继电器组合）。
计划是将每个多路复用器卡连接到晶片的76个触点中的一半。
一个多路复用器将采用Vdc（比如5V）并一次关闭一个继电器，而第二个多路复用器将测量/检查其连接的每个触点上Vdc的可用性。
本质上，我需要关闭（@ 101）并扫描（@ 201：240）以检查短路和隔离（购买测量不同点上的VDC），对（@ 102）到（@ 140）执行相同操作。
我的第一个问题：是否可以将外部Vdc源连接到一个34908a Mux卡（并将多路复用器与数字万用表断开）？2。
如何关闭一个多路复用器的继电器，比如说（@ 101）并在扫描和测量（@ 201：240）的直流电压时保持关闭状态？
我使用以下命令测试了一张卡的关闭一个继电器（并保持关闭以便进行测量）：ROUT：CLOS（@ 130）;: ROUT：CLOS？
（@ 124,130,131）**并且这不会返回0,1,0作为它应该的。
但是0,0,0而不是。
请指教.RegardsL



     以下为原文

  Hi

I'm trying to do a continuity and Isolation of tracks test on a wafer. A wafer prober with 76 probe contacts has been designed for this purpose. I just purchased a 34972a with two 34908a mux cards (80 relays combined). The plan is to have each multiplexer card connected to half of the 76 contacts of the wafer. One multiplexer will be sourcing Vdc (say 5V) and closing one relay at a time while the 2nd one will be measuring/checking the availability of Vdc on each contact that it is connected to. In essence, I need to close (@101) and scan through (@201:240) to check for shorts and isolations (buy measuring VDC on the different points), do the same for (@102) through (@140).

My first question: Is it possible to have an external Vdc source connected to one 34908a Mux card (and disconnect the mux from the Digital Multimeter)?

2. How can I close a relay of one multiplexer, say (@101) and keep it closed while scanning and measuring DC voltage from (@201:240)? I tested closing one relay(and keeping it closed in order to take measurements) for one card using the following command:

ROUT: CLOS (@130);:ROUT:CLOS? (@124,130,131) **and this doesn't return 0,1,0 as its supposed to. But 0,0,0 instead. Please advise.

Regards
L