Syncro firmware version 4.3 has the following amendments-

Series 90 call point response time
When the S90 call point is operated, an interrupt bit is set. This version of Syncro firmware will poll just the addresses that are known to be S90 call points to determine the source of the interrupt. As most detection loops have only a few call points installed, this will result in a faster processing of the alarm event.
Earlier versions of the panel firmware polled all addresses on the loop to determine the source of the interrupt.

Printer buffer overflow
When there are many events occurring on the panel at the same time (such as many disconnected faults when a loop is removed from the panel), the panel printer occasionally fails to print all events.
This is due to the capacity of the printer event buffer and the printer speed. If the events are sent to the printer buffer faster than the printer can print them, then eventually the printer buffer "fills up" and some information is lost.
Version 4.3 firmware will monitor the printer buffer and will print out "Printer Buffer Full" whenever any messages lost as a result of this scenario.
Any lost messages and can re-printed from the event log at a later date.

Apollo protocol panel initialisation failure
A number of customers experienced a problem when panels were configured "off site" using Loop Explorer, then installed on site. If there was a mismatch between the site configuration file and the actual devices fitted, then the panel would fail to complete the initialisation sequence.
If the panel was auto configured on site, then the configuration file loaded into the panel, then the problem would not occur.

This problem was introduced when the Ancillary base sounder was implemented in panel firmware version 4.0. It has been resolved in panel firmware version 4.3.

Apollo Discovery Detectors - device LED "Flash when polled" options
The Apollo Discovery detection devices have the ability to select whether the detector status LEDs flash when the device is polled or remain off until the device is activated.
This option can be selected by address in the Loop Explorer configuration program. There was a problem with the selection of this feature that is now resolved in this version.

Cause and Effect Limit
A problem was found in the processing of cause and effects for site configuration files with more than 256 different cause and effect entries. When any cause and effects above the 256th entry were activated, they would not clear when the "cause" is removed. The control panel had to be re-initialised to clear the cause and effect.
This problem has been resolved in this version.

Event log entry duplication
If the event log contained more than 256 entries, then the subsequent entries were duplicated when added to the event log and then exported into Loop Explorer event log viewer.
This is fixed in this version.

To download V4.3 upgrade file: