The XL-RDU, 32 way LCD remote display repeater panels have the same, easy to use, controls and indications as the main control panels with the addition of a 4 line x 40 character, backlit LCD display. The remote display units are fully functional with ‘Silence’, ‘Resound’ and ‘Reset’ controls, as well as Disable and Test Mode functions. It is also possible to disable the controls for each or all repeater panels to make them passive (indication only). Up to 8 display units can be supported on a system. Repeater panels are designed to be wired in a fault tolerant (fail safe) loop configuration, from comms A to B and back to the main panel again. This enables repeater panels to still work if there is a break in the cables. If replacing an older system where the existing cabling cannot be configured in a loop as above, it is possible to re-programme the control panel back to legacy RS485 circuit comms monitoring. This then allows any topology of comms cabling to be utilised. The main circuit board has 2, switch –ve, outputs which provide fire and fault signals. Inputs are available for use as PSU fault inputs. An input for a remote key-switch is also provided. Controls are enabled via a 4 digit code entry. The user code can be changed in the programming settings. An eight button keypad is used to control the system and allow access to the function options. The remote display unit is housed in a robust sheet steel enclosure suitable for wall mounting. Cable entry is via 20mm ‘knockouts’ located at the top and rear of the cabinet. A nominal 28v dc supply is required to power the remote display units which can be obtained from the control panel or remote power supply unit.