A short circuit will cause the fire alarm control panel to inhibit the activation of the audiblevisual signal. In the tables the letters are listed.

Signale Device Fire Alarm Modul Siga Cc1 Est Youtube
Est fire alarm panel wiring diagram. Branch speaker wiring 425 troubleshooting 427 chapter 5 installation 51. The circuit type is designated with a letter a z. Requirements for est products and systems fire alarm security access control cctv. Provides instructions for programming the fire alarm system from the control panel cpudisplay unit. Indicating appliance circuits connect the fire alarm panel to the components which alert building occupants of the fire ie bells horns speakers strobe lights etc. It functions as a signal power 24 vdc riser selector.
It is intended for trained installers who are familiar with all applicable codes and regulations. Ity code configures the module to provide synchronization of fire alarm signals across multiple zones. The output wiring is monitored for open circuits and short circuits. Est3 installation and service manual i content document history iv. It is intended for those trained and authorized to program the fire alarm system. The information shown for each control panel includes wiring diagrams and circuit tables.
The following illustrations show schematics wiring connections riser diagram and wire pull for some commonly used fire alarm circuits. Alarm zone device type fire zone device type matrix group device type and group device activation count y 1 to 255 1 to 255 10. Chapter 7 front panel programming. A wiring diagram is a simplified standard photographic depiction of an electric circuit. Wire guide tm edwards systems technology installers. Variety of addressable fire alarm system wiring diagram.
It reveals the elements of the circuit as simplified shapes as well as the power and signal connections between the gadgets.