Keltron's PET404 and PET408 are two of a series of distributed-multiplex, addressable transceivers that provide a low cost and reliable method of protecting a wide range of proprietary, commercial, and industrial buildings and complexes.
The PET404 with four and PET408 with eight inputs are especially appropriate for use in campus environments and industrial complexes. A system combining multiple PET modules can provide monitoring for up to 2048 contact points across long distances.
Features
Reliability - high-performance error-detection during serial, multiplexed signal transmission
Low cost - monitors multiple FACPs with a cost saving wiring flexibility
Flexibility - compatible with any FACP or device with relay outputs
Scalability - system of multiple PET modules can monitor thousands of contact points
Features
Compact and easy to install
Distributed-multiplex operation includes individually addressable inputs
Contains two independent RS485 ports that each regenerate and retransmit signals
Enables branching to minimize wiring and allow miles of distance capability
Full RS485 signaling circuit capability
Uses balanced line RS485 communication between modules and the central monitoring host
Includes two independent ports for NFPA 72 signaling line circuit classes A or B to style 7
Contains 4 or 8 inputs per module - EOL resistor-supervised
Unique 3-resistor monitoring enables monitoring of up to five conditions per input
Input stage hardware plus special software filter out spurious signals
Wide range low power input - 10.8-25V at 40mA
Runs from FACP power with no compromise of ground fault detection
Runs from FACP power while maintaining isolation from separate FACPs on the wiring scheme
Enclosure may include optional tamper switch whose condition is reported to the host
