SC648ND

Alarms, Buzzers, and Sirens: SC648ND application field and working principle

The SC648ND is an innovative electronic voice siren produced by Xenon Electronics that deserved to be detail analyzed due its broad application area and a variety of features. The SC648ND offers multipriority voice alarm broadcasting with latching and non-latching tones, plus auxiliary inputs for reset or siren control. Its special design also provide alarm override, remote reset, and alarm acknowledgement, allowing flexibility when performing the vocal alarm management processes. The SC648ND can perform sounds on fire and evacuation alarms.

It offers to facility managers priority levels for different alarms such as fire, security, or even medical. The audio will sound differently depending on the alarm being sent. This siren also has LED indication on acknowledge and disable functions. As a brief summary, these are some of the main features that the SC648ND offers:

• Prioritizes vocal messages
• Latching and non-latching tones.
• Auxiliary inputs for reset or siren control
• Alarm override, remote reset, and alarm acknowledgement.
• LED indication on acknowledge and disable functions

The application area of the SC648ND goes from small to large facilities, including apartments, factories, airports, public buildings, malls, and many others. It can be used in any alarm system that requires voice siren for evacuation, security, fire and numerous other applications.

SC648ND Working Principle

The SC648ND working principle is based on slightly modulated electric current generated from a periodic voltage source. Its elemental parts are built with cutting-edge manufacturing processes, with improved stability and durability, allowing it to perform in diverse conditions (rain, snow, weathering…). As for the installation process, the SC648ND power cable connection to the user power system is secured, for instance through the use of the dedicated output terminals. The siren will be ready to operate after making the required adjustments.

The SC648ND will take written voice messages that had been saved to a micro SD, working as a memory unit. In this way, the SC648ND will recognize the different levels of alarms (high, middle and low, for instance) each with its own or shared volume levels. The sound will turn on when the switch is on and each siren will broadcast for the amount of time determined by the configuration.

Conclusion

The SC648ND design is a commitment to innovate in the safety and security markets, providing facility personnel with reliable sirens for fire, security, and other type of alarms. This has made the SC648ND the ideal choice for facilities where vocal alarms are needed, due to its wide range of features that make the electric-current generation process effective and powerful.