Bosch Manual Call Points FMC-420RW-GSGRD | FMC-420RW-GSGBU | FMC-420RW-GSGYE
This document provides installation and operational details for the Bosch Manual Call Points, specifically models FMC-420RW-GSGRD, FMC-420RW-GSGBU, and FMC-420RW-GSGYE. These devices are designed for use in fire alarm systems, allowing for manual initiation of an alarm in case of a fire or other emergency.
Function Description
The Bosch Manual Call Points are essential components of a fire detection system, providing a direct means for occupants to trigger an alarm. When activated, these call points send a signal to the fire alarm control panel, which then initiates the appropriate alarm sequence, such as sounding evacuation alarms and notifying emergency services. The design incorporates a mechanism for clear visual indication of activation.
The call points operate within a Loop Signal Network (LSN) and support different operating modes based on address settings. They can function in an LSN improved version mode with either automatic or manual address setting, or in an LSN classic mode. The address setting is configured using 8 DIP switches, allowing for flexible integration into various system architectures.
Important Technical Specifications
- LSN Operating Voltage: 15 to 33 VDC
- LSN Current Consumption: 0.26 mA
- Permissible Operating Temperature: -25 to +70 °C
- Protection Category (according to EN 60529): IP 54
- Dimensions (H x W x D): 87 mm x 87 mm x 56 mm
These specifications highlight the robust design and suitability of the call points for a wide range of environmental conditions. The IP54 rating indicates protection against dust ingress and splashing water, making them suitable for many indoor and some outdoor applications where such conditions might be present. The low current consumption is beneficial for system power efficiency.
Usage Features
The manual call points are designed for straightforward operation and clear indication.
- Alarm Activation: To trigger an alarm, the inspection flap needs to be unlocked and lifted upwards. A test key is then inserted and turned clockwise by 90 degrees. This action triggers the alarm, and an LED lights up, providing immediate visual confirmation of activation.
- Address Setting: The device address is set using 8 DIP switches. This allows for unique identification of each call point within the LSN, facilitating precise location of the alarm source. The manual provides detailed tables for setting addresses from 0 to 255, corresponding to different operating modes.
- Address 0: Configures the device for Loop/stub in LSN improved version mode with automatic address setting.
- Addresses 1-254: Configures the device for Loop/stub in LSN improved version mode with manual address setting.
- Address 255 (CL): Configures the device for Loop/stub in LSN classic mode, with an address range of a maximum of 127.
- Installation Flexibility: The installation graphics illustrate various mounting options, including surface mounting and flush mounting, with clear instructions for wiring and securing the device. The design accommodates different cable entry points and terminal connections for LSN1 (a, b), LSN2 (a, b), and shielding (E).
- Visual Indicators: The LED indicator provides clear feedback when the alarm is triggered, ensuring that users can easily confirm the device's operational status.
Maintenance Features
Maintenance of the Bosch Manual Call Points is designed to be simple and efficient, primarily involving functional testing and resetting.
- Functional Test: Regular functional testing is crucial to ensure the device operates correctly. This involves unlocking the inspection flap, inserting the test key, and turning it clockwise by 90 degrees. The alarm should trigger, and the LED should light up. This process verifies the mechanical and electrical integrity of the call point.
- Resetting the Device: After a test or an actual alarm, the device can be reset. This involves turning the test key back, removing it, and closing the inspection flap. This action prepares the call point for future use.
- Warning for Live Components: A critical safety warning emphasizes that the device contains live components and stripped cables, posing a risk of electric shock. It is imperative that the system is current-free during connection work to prevent injury.
- Compatibility Notice: An important notice advises against using different operating modes in one loop/stub/T-tap configuration. This ensures system stability and proper functioning.
- Wiring and Connections: The installation graphics provide detailed steps for wiring, including stripping cables to the correct length and connecting them to the designated terminals. This ensures secure and reliable connections, which are vital for the long-term performance of the device.
The Bosch Manual Call Points are reliable and user-friendly devices, offering essential functionality for fire safety systems with clear installation, operation, and maintenance guidelines.
Need help?
General
To Next Page