When a deaf or hard of hearing person enters a building where DMS is installed, they will see clear signage asking them to text a location code to the DMS number.
Once a connection text has been sent, the person will be connected to the DMS service for that location. After 12 months they will receive a text asking them to reconnect. Just to let you know that connection text costs the same as a standard SMS text.
In the event of a fire and the fire alarm sounding, the DMS controller which is hardwired into the Fire Panel, will trigger a process that within seconds sends a text message to all the people connected to that location.
Operating DMS during a fire bell test
The DMS controller is fitted with an inhibitor button, allowing a location's fire alarm to be tested as needed without alerting those individuals connected to that location. Once pressed, the DMS is de-activated for a period of 5 minutes allowing the fire alarm to be tested.
Operating DMS
- Prior to activating the fire alarm the inhibitor button should be pressed. The yellow LED will begin to flash
- The fire alarm can then be activated
- After 5 minutes the yellow LED will stop flashing and the DMS controller will once again be active Prior to activating the fire alarm the inhibitor button should be pressed. The yellow LED will begin to flash
Tech Spec
Dimensions and Weight
Overall height: 125mm
Width: 165mm
Depth: 55 mm
Packed kit weight: 455g
Product weight: 300g
Material and Operating Specifications
Casing: ABS
Operating temperature: -20 degrees to +70 degrees
Standard operating temperature: 22 degrees
RoHS,WEEE: All hardware components are fully compliant with the EU RoHS and WEEE
Directives
SIM Interface: Supported SIM cards: 3V
Supply Voltage Requirements
Input Voltage range: 6-30V DC
Power Supply current rating: min. 1.2A @ 12V
Power Supply ripple: max. 120mV
Input current in idle mode: 20mA @ 12V
Input average current in communication mode: 100mA @ 12V
Approvals and Standards
Trigger: alarms installed to BS 5839 Part 1
Operating Frequency
Transmitter output power: GSM-850/900: The modem in GSM-850/900 operating mode is class 4 in accordance with the specification which determines the nominal 2W peak RF power (+33dBm) on 50 Ohm
DCS-1800/PCS-1900: The modem in DCS- 1800/PCS-1900 operating mode are of class 1 in accordance with the specifications which determine the nominal 1W peak RF power (9+30dBm) on 50 Ohm
Reference Sensitivity: GSM-850/900: The sensivitity of the modem according to the specifications for the class 4 GSM-850/900 portable terminals is 107dBm typical in normal operating conditions
DCS-1800/PCS-1900: The sensitivity of the modem according to the specifications for the class 1 portable terminals DCS-1800/PCS1900 is -106 dBm typical in normal operating conditions
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