The Johnson Controls 1351J Intelligent Ion Smoke Detector is an addressable ionization smoke detector head. Besides, this model has been discontinued for a few years now. Datasheet and description below is for a possible replacement.
Johnson Controls 1351J Intelligent Ion Smoke Detector intelligent plug-in smoke detectors with integral communication provide features that surpass conventional detectors. Detector sensitivity can be program in the control panel software. Also, sensitivity is continuously monitor and report to the panel. Moreover, the 2951J photoelectric detector’s unique optical sensing chamber is engineered to sense smoke produce by a wide range of combustion sources. Dual electronic thermistors add 135°F(57°C) fixed-temperature thermal sensing on the 2951TJ.
Some of the features and specifications can be describe below, for example:
- Sleek, low-profile design.
- Low standby current.
- However provide stable communication technique with noise immunity.
- Remote test feature from the panel.
- Dual LED design provides 360° viewing angle.
In addition, the 2951J plug-in detectors use a separate base to simplify installation, service, and maintenance. Johnson Controls recommends spacing detectors in compliance with NFPA 72. In low airflow applications with smooth ceiling, space detectors 30 feet (9.144m) for ceiling heights 10 feet (3.148m) and higher. Intelligent devices communicate in a grouped fashion. If one of the devices in 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 earlier designs.