Thanks, sonix. I did not know that the CTS uses TTL level. Will re-read the V.28. Tak
Forum: PonyProg

Am about to start a project that needs to read/write 24C01 EEPROM, but, got a simple question on the schematic of RS232 interface. ref: http://www.lancos.com/siprogsch.html#baseboard The pin8, CTS, looks to be an input to RSR232 from data signal of 24Cxx for I^2CBus. To my understanding, RS232 requires lower than minus 3 volts for low level. The schematic indicates low signal level can
Forum: PonyProg