ZIOU-DG – Zeta Addressable Input/Output Unit with Isolator provides two voltage-free, single pole, change-over relay outputs, a single monitored switch input and an unmonitored, non-polarised opto-coupled input.
The Input/Output Unit is normally supplied with a backbox for surface mounting. It is also available without the backbox for flush mounting. Both versions are designed for indoor use only. Four LEDs, two red and two yellow, are visible through the front cover of the enclosure. One red LED is illuminated to indicate that the relay is set. The second red LED is illuminated to indicate that the switch input is closed.One yellow LED is illuminated whenever a fault condition (open or short circuit) has been detected. The other LED is illuminated whenever the built-in isolator has sensed a short-circuit loop fault. The enclosure is moulded from the same polycarbonate as Zeta detectors.
The Input/Output Unit supervises one or more normally-open switches connected to a single pair of cables.The Input/Output Unit is fitted with a bidirectional short-circuit isolator and will be unaffected by loop short-circuits on either loop input or output.
The ZT-CP3 and ZT-CP3/WP call points are unique in that they mimic the feel of breaking glass whilst offering the user the benefits and environmental advantages of a re-settable operating element.
The Zeta addressable input output units (ZIOU & ZIOU/230) are used to interface external equipment to any Zeta addressable fire alarm system.
The Fyreye MkII optical smoke detectors use a pulsing IR LED & photodiode to detect IR scatter caused by smoke entering the chamber.
ازجنس اسفنج پلي اورتان خيلي نرم، بند دار NRR=32dB و SNR=37dB
استاندارد CE و ANSI