NetBurner Community Forum

Paul, Thank you for your comments. I found the reference to TTL very misleading. The TTL acronym has been around for over forty years and has always implied a Vcc of 4.5 to 5.5V. However, their usage of the TTL reference is one-sided. The SB70LC UARTs will output TTL "level" signals, but t...

Thank you for the prompt replies.

I had not checked the specs on the 5270 to see if it was tolerant.
Thanks for the clarification.

I'll also look into the MAX3232.

Dave

My question pertains to the Netburner SB70LC Serial-to-Ethernet Server board. In the data sheet, Note 1 states that "All input/output lines are 3.3V maximum". However Note 2 says "All UART signals are TTL level, external level shifters may be added for RS-232 or RS422/485 operation&qu...