Syncro Display Card Compatibility

There are two different hardware versions of the Syncro display card –
Kentec Part Number S550
This version of the display card is supplied on all panels that are not certified to EN54-2. This version of the display card is easily identified by the omission of the configuration memory “write enable” switch. Typically this version of the display card will have firmware versions 1.0 – 4.xx installed.

Kentec Part Number S550EN
This version of the display card is supplied on all BSI Kitemarked EN54-2 certified panels. This display card uses issue 11 or later circuit board hardware and will have the configuration “write enable” switch fitted. This version of the display card will have V5.0 or later firmware fitted and will also have a bar code label with the part number and batch reference.

In the event of a failure of any older S550 display card, it is recommended that the display card be replaced only with another S550 display card. Whilst the S550EN display card will physically fit in the panel in place of the S550 display card, there may be a compatibility problem with the loop cards.

In September 2004, there was a revision to the loop card firmware, so that the S550EN display card could interrogate the loop card microprocessor to determine if the processor had restarted, for EN54-2 “system fault” requirements.

If the S550EN display card is connected to any loop card manufactured before September 2004, then a permanent “System Fault” message will be reported.

It is possible to determine compatible loop cards by looking at the firmware version labels on the loop card microprocessors. The S550EN display card is compatible with Apollo V1.40 (or later) loop card firmware and Hochiki V1.10 (or later) loop card firmware. Earlier version loop cards are only compatible with S550 display cards.

NOTE: “EN54 compatible” firmware versions (used to allow older panels to be networked to the BSI Kitemarked EN54 certified panels) do not report a System Fault when communicating with older loop cards.

Please contact any member of the Technical Support or Customer Service departments if you require additional information.

Download the Syncro manual:

Sigma XT
Extinguishant
Control Panel

Sigma Si
Extinguishant Status Unit

Sigma Si - Local Inputs

The Sigma SI status unit is compatible with the Sigma XT extinguishing control panel. Up to 7 Sigma SI status units may be connected to the Sigma XT control panel.

There are four different hardware versions of the status unit
• 6 lamp (indication only – no controls)
• 6 lamp with mode select key switch
• 6 lamp with mode select and manual release facility
• 10 lamp (additional Zone 1-3 Fire and General Fault lamps) with mode select and manual release

These four versions are available in either IP30 (standard) enclosures or IP65 weatherproof enclosures.

The status unit provides a clear indication of the state of the Sigma XT panel and also has a 2 digit 7-segment display for the release countdown time.

In addition to the optional front panel mounted controls, ALL models have two monitored inputs provided as standard. These two inputs are labelled
• MODE – This input provides an additional facility to put the Sigma XT into manual only mode. Typically this can be wired to door lock switches, to put the panel into manual only mode when the door to the protected area is unlocked.
• HOLD – This input can be wired to a local “Hold off” switch. When operated during the activated (2nd stage) condition, the release delay countdown timer will be reset to the maximum value and will be paused for the duration that this input is active. When the input is cleared, the release delay countdown timer will resume from the maximum configured time.

Whilst the Sigma XT panel also has these two monitored inputs as standard, there may be a significant saving in the installation costs if the mode switch or hold off button is located near to the status unit.

Note – EN12094-1 requirements specify that for a fault on any HOLD input must put the Sigma XT panel into a permanent Hold condition. There are fault indicators fitted to the Sigma SI status unit PCB to show a fault condition on either of the monitored inputs.

Please contact any member of the Technical Support or Customer Service departments if you require additional information.

Download the Sigma Si manual:
Download the Sigma XT manual: