OC sensor for inboard outboard?

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unionbro576

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Hi, Im trying to find out if there is an Occupancy Sensor availible that would facilitate inboard/outboard switching. I have done a search online and havent seen any thus far. The building im working on requires OC sensors and has inboard/outboard switching, the drawings only show one sensor per room. I may request a contract mod and add a second sensor for the extra switched leg.
 
Assuming both switches are on the same circuit, we use a power pack to control the feed to the switches. The low volt ceiling mounted sensor triggers the power pack and allows power to the switches when someone enters the room. If the switches are not on the same circuit, then you would use an add-a-relay to control the feed to the 2nd switch.
 
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