The manual series pull stations are part of the Edwards SIGA-270 system. The SIGA-270 fire alarm product is a teardrop shape, they are made from die-cast zinc and finished with red epoxy powder-coat paint by aluminum colored stripes and marked with some of the positive pull lever operations, the pull on the station handle break the glass rod and turn in a positive alarm, making protection and sure operation, models are available for one or two-stage alarm systems. The decisions made at the station let lower communication speed while significantly improved control panel response time and also is less sensitive to line noise and loop wiring properties; twisted or protect wire will not require.
The Edwards SIGA-270 pull station permanently stores programmable address, serial number, type of device, and job number and automatically updates historic information including hours of operation, last maintenance date, number of alarms, and troubles, and time and date of last alarm. Each of these stations transmits message information to the controller regarding the location with respect to other devices on the circuit, the station inputs an alarm even if the loop controller’s polling interrogation stops. For the diagnostic flashing, GREEN shows normal polling; flash RED shows an alarm state, also was design for high ambient temperature operation up to 120 °F (49 °C).
They are compatible only with the Edwards signature loop controller. The item can do not operate without electrical power. The station’s automatic self-diagnosis identifies when it is defective and causes a troubling message. The user maintenance program shows the current state of each device and other pertinent messages. Will we have to remove the single devices temporarily from the control panel. This can do the maintenance of the features, dependents on the fire alarm system used.