Content Comparison

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The Scrambler Timed shutter is larger than the other shutters within the system, and as such requires different settings on its VED24 controller, as described below.

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Relevant Devices

Description	Qty	Source	Part Number	Notes
Shutter Controller	1	Uniblitz	VED24
Shutter	1	Uniblitz

NS65B-2-T-0Driver: VED

NS65B1T0-VED

65mm Optical Shutter Bi-stable (only requires power for transitions) Ordering Options:

Housing: include

Blade Coating: Low Energy (Teflon)

Electronic Sync: Omitted (not available at original purchase)

Connector: 5-pin Switchcraft connector with 6” harness

Encapsulated Coil: Not required

Image Added Note: as of 2021 the electronic sync option was not available for this shutter. Uniblitz said that option was only possible for this shutter as part of a custom, large-quantity order.

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Relevant Functional Block Diagram

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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 has the following settings:

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For the DSS25B NS65B shutters the function switch and pulse duration settings are:

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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):

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.

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