SELECT SERIES MOUNTING BASES AND ACCESSORIES

To meet local code and application requirements, Mircom offers standard 4” and 6” bases, as well as, specialty base designs including relay, isolator, sounder and low frequency sounder options for Select Series detectors.
The standard 4” and 6” bases offer a plug-in detector base intended for use in intelligent systems. The 4” base offers a compact design while the 6” base provides compatibility with a wider range of junction boxes.

The Select Series specialty bases support application driven requirements.
Relay bases (B224RB(A)-WH/B224RB(A)-IV) provide one form C contact relay for control of auxiliary functions, such as door closure and elevator recall. The relay can operate in two different modes (short and long delay). The activation time for the short delay is 60 ms to 100 ms, while the activation time for the long delay is 6 sec to 10 sec.
Isolator bases (B224BI(A)-WH/B224BI(A)-IV) allow the Signaling Line Circuit (SLC) loop to operate under fault conditions created from a short circuit preventing an entire communication loop from being disabled. The base isolates the section of the loop containing the short circuit from the remainder of the circuit and automatically restores when the fault is corrected.

The Select Series sounder and low frequency sounder bases are designed for new and existing dwelling unit applications. They offer maximum flexibility in installation, configuration, and operation to meet or exceed UL 268 and UL 464/ CAN-ULC S529 and CAN-ULC S525 requirements. The Select Series low frequency sounder bases are designed to meet the NFPA 72 sleeping space requirement to produce a fundamental frequency of 520 Hz +/- 10% with a square wave or its equivalent. The B200SR(A) sounder and LF sounder bases (B200SR-WH/B200SR-IV/B200SR-LF-WH/B200SR-LF-IV) are fully compatible with existing sounder base installations.

The Sounder bases adopt the same address as the detector, but use a unique device type on the loop. The Fire Alarm Control Panel (FACP) can use that address to command an individual or a group of sounders to activate. The command set from the FACP can be tailored to multiple event-driven tone outputs allowing selection of volume, tone, and group.

The sounder bases recognize the System Sensor synchronization protocol. This enables it to be used as a component of the general evacuation signal – along with other System Sensor AV appliances – when connected to a power supply or FACP output capable of generating the System Sensor synchronization pulses.

FEATURES

• Bases enable quick and secure detector plug-in
• SEMS screws provide easy wiring connection
• Support for 12-24 AWG provides installation flexibility
• Multiple base formats meet application requirements
• Standard white color with ivory options
• UL 268 compliant
• Canadian models compliant with CAN/ULC S529
• Mechanical locking feature restricts removal of attached sensor head

SPECIALITY BASE FEATURES

• Pre-wired mounting plate simplifies installation
• Application driven feature sets
• Sounder bases both UL 268 and UL 464 compliant
• Canadian sounder base models compliant with both CAN/ULC S529 and CAN/ULC S525
• Additional terminal connections on Canadian models enable silence feature

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