S J Security Systems Pvt. Ltd. Offers SMPS Supply to Support Eight Cameras with Four Port Common Output. SMPS supply to Support Eight Cameras with Four Port Common Output is an indigenous product. It features LED at back and has 90V-240V AC input and 12V DC regulated output. S J Security Systems Pvt. Ltd. Offered SMPS supply to Support Eight Cameras with Four Port Common Output has individual grouped outputs with LED at back and each group supports two cameras.