Đầu báo khói địa chỉ ion 1951J Johnson control

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Đầu báo khói địa chỉ ion 1951J Johnson control

1951J Series intelligent plug-in ion detectors with integral communication has features that surpass conventional detectors. Detector sensitivity can be programmed in the control panel software. Sensitivity is continuously monitored and reported to the panel. Point ID capability allows each detector’s address to be set with decade address switches, providing exact detector locations for selective maintenance when chamber contamination reaches an unacceptable level.

The 1951J Series ionization detector incorporates a unique single-source, dual-chamber design to respond quickly and dependably to a broad range of fires. 1951J Series detectors are compatible with Johnson Controls intelligent Fire Alarm Control Panels (FACPs).

FlashScan® (U.S. Patent 5,539,389) is a communication protocol that greatly improves the speed of communication between analog intelligent devices and certain systems. Intelligent devices communicate in a grouped fashion. If one of the devices within the group has new information, the panel’s CPU stops the group poll and concentrates on single points. The net effect is response speed greater than five times that of other protocols.


•Sleek, low-profile design.

•Addressable-analog communication.

•Stable communication technique with noise immunity.

•Low standby current.

•Two-wire SLC connection.

•Compatible with FlashScan® and CLIP systems

•Direct-dial entry of address 01– 159 for FlashScan loops, 01 – 99 for CLIP mode loops

•Optional remote, single-gang LED accessory (RA400Z).

•Dual LED design provides 360° viewing angle.

•Visible bicolor LEDs blink green every time the detector is addressed, and illuminate steady red on alarm.

•Remote test feature from the panel.

•Walk test with address display (an address of 121 will blink the detector LED: 12-(pause)-1) (FlashScan® systems only).

•Built-in functional test switch activated by external magnet.

•Built-in tamper-resistant feature.

•Sealed against back pressure.

•Constructed of off-white Bayblend®, designed to commercial standards, and offers an attractive appearance.

•94-5V plastic flammability rating.

•SEMS screws for wiring of the separate base.

•Optional relay, isolator, or sounder bases.

•Listed to UL 268, ULC CAN/ULC-S529 (1951JA).

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