Edition 31

Syncro 4-way Conventional Zone Card – K545 – Test Mode Operation

The Syncro 4-way conventional zone module provides a cost effective solution to system upgrades, where a number of conventional detection zones need to be supported by the Syncro panel in addition to the analogue addressable detection devices.

Up to 32 Syncro 4-way conventional zone modules may be connected to each Syncro or Syncro AS control panel, providing support for up to 128 conventional detection zones per Syncro panel. The zone cards utilise RS485 data communications and may be installed up to 1200m away from the panel (using suitable data cable).

Each Syncro 4-way conventional zone module has four independently monitored conventional detection zones (short circuit and open circuit monitoring), two independent 1 Amp rated fully monitored sounder outputs, a volt free Fire relay, Fault relay and an input to monitor a remote power supply.

All inputs and outputs are configurable using the intuitive Syncro Loop Explorer configuration program. Each zone may have a 40 character location message allocated and may be mapped to any of the 500 detection zones supported by Syncro and Syncro AS panels. The inputs and outputs may be controlled either via the simple “default ring” patterns or by comprehensive cause and effect logic.
In the unlikely event that there is a loss of data between the panel and the 4-way conventional zone card, then it will work “stand alone” in a default condition, whereby a fire on any of the four zones will result in both sounder circuits and the fire contact operating continuously.

In line with all the expansion cards, 16 hardware channels are allocated to this unit. Four zone fire channels, four Zone Fault channels, two sounder outputs, two sounder faults, Fire Relay control, fault relay control, power fault input and a single “zone reset” (removes power to conventional detection devices on all zones).

K545 “Test Mode” restriction
Because there is only a single reset control line for all four detection zones, it is not possible to independently reset each zone. In general this is not a problem UNLESS using the “Zone Test” facility, which is used to automatically reset fire events in zones selected in Test Mode via the Syncro Access Level 2 (user) menu.
As the card has four independent zones, it is not necessarily true that all four will be in Test Mode at the same time. For zones that are not in test mode, the panel MUST NOT automatically reset the detection devices – to do so would be dangerous and would not comply to EN54-2 requirements.
To avoid this dangerous situation, none of the four detection zones on the K545 4-way zone module will automatically reset when any (or all) of them are included in active “Test Mode” zones.

If independent zone reset control is required when zones are in test mode, then it will be necessary to utilise Zone Monitor units fitted directly on to the detection loops.

Download K545 4-way Zone Module Datasheet:
Download K545 4-way Zone Module Manual:


Syncro Analogue Addressable Fire Control Panel


Syncro AS
Analogue Addressable Fire Control Panel

Syncro Event Log - Download Facility

The Syncro and Syncro AS control panels have an event log capacity of 500 events. The Syncro AS panel’s event log is stored in non-volatile memory and is retained during power off conditions and can only be cleared by using the Access Level 3 menu operation.

The Syncro event log is not stored in non-volatile memory and will be lost in the event that the power is removed from the control panel. It is important that the event log is downloaded to a computer and stored as a record of events prior to undertaking power removal or maintenance on the Syncro panel.

To download the event log, use the Loop Explorer “PC Connect” feature – as used to transfer the configuration to / from the panels. In this screen, select the panel required, then “Fetch” and when completed, click “Save” to save the log in Comma Separated Variables (csv) file format.

Once the event log has been saved, the log file may be opened by any number of programs supporting csv file format. The most popular of these is Microsoft Excel, which allows sorting and filtering of the panel data by event type, date and time etc.

This same facility also applies to the detection device analogue values, which may also be transferred into a csv file for later interrogation.

Download the Syncro Manual:
Download the Syncro AS Manual:

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Kentec Electronics Ltd.
Tel: +44 (0)1322 222121 Fax: +44(0)1322 291794