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Table of Contents:
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Relevant Functional Block Diagram
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Cable Details
Cable | Qty | Details |
|---|---|---|
Cal. Unit. Sci/Sky Arm Shutter (BNC) | 1 | |
Cal Unit Simultaneous Cal Shutter (BNC) | 1 | |
SoCal Sci Fiber Shutter (BNC) | 1 | |
SoCal Cal Fiber Shutter (BNC) | 1 | |
Uniblitz-Supplied 510F Cable | 4 | Ships with Uniblitz VED24 Shutter Controller |
Uniblitz-Supplied 5M203D Cable | 4 | Ships with Uniblitz VED24 Shutter Controller |
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Photos of Devices
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Installation Instructions
The shutter controller has a set of DIN “Function Switches” (second from right in image below) and an Octal switch for “Pulse Duration” (far right in image below) that need to be configured for the particular shutter being used:
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The function switch
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For the DSS25B shutter which is used with the CaHK system, the shutters the function switch and pulse duration settings are:
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The Note the setting for Switch 1 does not depend on the shutter type, but should be set to ‘UP’ for ‘LOCAL’ (this disables the USB port and enables the BNC Pulse Input):
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Note also that there is also a toggle switch on the front that sets the ‘Normally Open’ or ‘Normally Closed’ polarity of the switch (second from left in image above). The manual is not clear on how this affects a bi-stable shutter. For consistency within KPF, all shutter controllers should be set to ‘N.O.’. Each KPF VED has a label on the front to indicate this, as show in the picture above.
To manually operate a shutter, click this one can click the N.O./N.C. switch back and forth. Be However, be sure to leave it at ‘N.O.’ when done.
cables in PN and diagram (same with Galil Enclosure)
For the cable between the VED24 and the DSS25B shutter, it is a Uniblitz SM203D, which ships with the VED24.picture of NO sticker
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Relevant Datasheets & Manuals
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