Model 45DR Application Firmware File Name: M45DR.bin Version History: Version: 3.1 Release Date: 31 Mar 2016 Description: Adds new configuration option that allows the party-line active detection function to be disabled. Version: 2.5 Release Date: 13 Aug 2015 Description: Adds Dante device identify support. Un-Mutes audio signals to party-line (PL) outputs and level meters when the PL interface is not active. Version: 2.2 Release Date: 16 Mar 2015 Description: Mutes audio signals to party-line (PL) outputs and level meters when the PL interface is not active. Version: 2.1 Release Date: 16 Jan 2015 Description: Adds support for sending and receiving RTS(r) 20 kHz call signaling protocol. Version: 1.3 Release Date: 4 Nov 2014 Description: Changes pin 2 DC detection threshold to 18 V when internal party-line power source is off. Version: 1.2 Release Date: 8 Oct 2014 Description: Adds back panel PoE and USB LEDs to power-up "walk through" sequence. Version: 1.1 Release Date: 29 Aug 2014 Description: Initial release.