The operating system is based on Computrols’ well-known CBAS, and the system is programmed via a user-friendly computer-based CBAS program- ming system.
Master Control Unit
The Master Control Unit (MCU) serves as a basic information and control center for standard operator functions. The user interface consists of a 320x64 graphical LCD with an enhanced soft-touch keypad and provides both system operation and troubleshooting functions. An RS-232 port pro- vides supervised output to a UL864 listed printer. The system has dual switching power supplies for reliability and a built-in microcontroller- based adaptive battery backup system that maintains sealed lead-acid bat- teries up to a 55 amp-hr capacity. The MCU supports 5 SLC cards. Each SLC card supports 1 class A SLC circuit or 1 Class B SLC circuits.
Every CSimon system can be expanded by adding up to 16 Auxiliary Units, each of which provides the same capabilities as the MCU.
The Alarm verification feature is programmable for all smoke sensors. This allows smoke sensors that are installed in noisy or smoke prone environ- ments to distinguish between false and real alarms. In the event the sensor alarms, the system will enter an alarm verification interval. If there are no more alarms within the alarm verification interval, the circuit or device will then automatically reset.
The walk test feature is performed on a signaling line circuit or zone basis and enables testing of the system by a single person. While in walk test, service technicians can manually produce alarms and trouble signals, there- by verifying their operation without triggering alarm sequences and dis- turbing tenants.
The CSimon fire panel continuously monitors all installed analog smoke sensors and identifies any that fall outside of specified parameters. The drift compensation software is built into the smoke sensors and overcomes effects of aging or environment on sensor sensitivity, providing a depend- able alarm threshold. Sensors automatically change sensitivity with time- of-day to be “matched” to their real-life environment.