Thank you everyone for your assistance.
Just got off the phone with pfsense and after board resets, it appears that I have a faulty
board. They issued and RMA and I am returning it for a replacement.
Great people great response and service. This is a new system and board and faulty boards are very rare, so unfortunately I got a lemon. Shit happens !
With respect to the pe-configured SG-4860 or any other for that matter, there is NO reason to connect through the serial console port. The appliance has a DHCP server pre-configured and should provide an IP address when one connects to the LAN port.
(BTW, the console cable is a standard USB to Mini-USB cable nothing fancy. The UART chip contains the serial interface with the proper configuration which does NOT require a NULL MODEM cable. That information in the documentation is a remnant of older systems.)
I must note that both SSD and SYSTEM LEDs were solid RED which was an indicator that there was an issue with the board. The engineer at pfsense had me do a jumper change and board reset but without success. So back it goes to Austin and will impatiently await the replacement.
thanks again for all your help.