Looking for Fujitsu FLEXR software (FSX2000 series)

[laforge]

I have recently received a number of decommissioned DeTeWe/Fujitsu ALIAN V5 access multiplexers (PSTN/ISDN wireline technology) and am looking for a backup copy of the Fujitsu FLEXR (FSX2000 series) software for provisioning/OAM.

Any help is greatly appreciated.