Version: 14PR006D (32 IP)
File size: 3.2 MB
Download firmware 14PR006D for PBI 1400P-S2 32 channels
https://files.ixnfo.com/Firmware/PBI/14PR006D-DMM-1400P-32IP-S2.rar
Version: 14PR006A (6 IP)
File size: 3.2 MB
Download firmware 14PR006A for PBI 1400P-S2 6 channels
https://files.ixnfo.com/Firmware/PBI/14PR006A-DMM-1400P-6IP-S2.rar
See also my article:
Firmware update for PBI DMM-1400P tuners