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asics:setup_guide [2010/09/10 17:09]
dancoupland created, copying text from old pdf. Should check for updates and include images later. 		asics:setup_guide [2010/09/14 12:16] (current)
dancoupland Added a couple of the figures
Line 34: Line 34:
     * All rack crates are connected to clean ground power.     * All rack crates are connected to clean ground power.
     * The spdaq computer is connected to dirty power.  It should be isolated from the rack, although when plugged in it will show little resistance to the crates because of the grounding.  The spdaq is connected to the SBS module in the VME crate with optical cable, which is done to preserve its isolation from the electronics.     * The spdaq computer is connected to dirty power.  It should be isolated from the rack, although when plugged in it will show little resistance to the crates because of the grounding.  The spdaq is connected to the SBS module in the VME crate with optical cable, which is done to preserve its isolation from the electronics.
-  - Connect electronic cables between tower and flange(s), and then from flange(s) to rack (see Figure 1.)+  - Connect electronic cables between tower and flange(s), and then from flange(s) to rack (see Figure 1.){{ :asics:hira_test_setup_figure1.png?150|Figure 1}}
     * Use cables intended to be used inside a vacuum chamber. These will often be shielded from electronic noise using a metallic foil and insulated with a nylon sleeving.  They will also generally be taped using Capton tape, the adhesive on which does not evaporate under vacuum as much as other tape.  I recommend using the grey common ground 34-pin cable for inspect channels and thermocouple output.     * Use cables intended to be used inside a vacuum chamber. These will often be shielded from electronic noise using a metallic foil and insulated with a nylon sleeving.  They will also generally be taped using Capton tape, the adhesive on which does not evaporate under vacuum as much as other tape.  I recommend using the grey common ground 34-pin cable for inspect channels and thermocouple output.
     * The thermocouple output is a 34-pin cable, but in the digital voltmeter accepts lemo connections.  There are connectors in the HiRA lab to go from 34-pin to lemo.  Pin assignments on this cable are listed in Table 1.  Connect the regulator voltage signal to the second voltmeter and the thermocouple temperatures to the first.     * The thermocouple output is a 34-pin cable, but in the digital voltmeter accepts lemo connections.  There are connectors in the HiRA lab to go from 34-pin to lemo.  Pin assignments on this cable are listed in Table 1.  Connect the regulator voltage signal to the second voltmeter and the thermocouple temperatures to the first.
     * Make sure the thermocouple box is also isolated from the chamber.     * Make sure the thermocouple box is also isolated from the chamber.
     * Ground the cables to the tower, flange, or rack, usually with alligator clips.     * Ground the cables to the tower, flange, or rack, usually with alligator clips.
-  - Wire up the modules in the rack (see Figure 2.)  +  - Wire up the modules in the rack (see Figure 2.){{ :asics:hira_test_setup_figure2.png?150|Figure 2}}
     * The XLM ECL connection is configured so that the first 8 signals are inputs to the XLM and the second 8 are outputs.  Since the ECL-NIM-ECL converters require inputs and outputs on separate connectors, the cable needs to be split in two so that the first 8 signals are output from the ECL-NIM-ECL module, and the second 8 are input to it.     * The XLM ECL connection is configured so that the first 8 signals are inputs to the XLM and the second 8 are outputs.  Since the ECL-NIM-ECL converters require inputs and outputs on separate connectors, the cable needs to be split in two so that the first 8 signals are output from the ECL-NIM-ECL module, and the second 8 are input to it.
     * Pin assignments on the inspect channels and XLM ECL connection are listed in Table 2 and 3.     * Pin assignments on the inspect channels and XLM ECL connection are listed in Table 2 and 3.
     * A detailed explanation for the wiring follows in the next section.     * A detailed explanation for the wiring follows in the next section.
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 ====Introduction to HiRA acquisition logic / explanation of wiring==== ====Introduction to HiRA acquisition logic / explanation of wiring====
asics/setup_guide.1284152977.txt.gz · Last modified: 2010/09/10 17:09 by dancoupland

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