iDP3110 User's Manual
CITIZEN 17
(3) Electrical characteristics
1) RS-232C circuit
Input (RD)
[PRINTER] [HOST]
MAX 232 equivalent Mark = (-8V) : Stop bit
Space = (+8V) : Start bit
Output (DTR)
MAX 232 equivalent
DTR (-8V) when BUSY
(+8V) when READY
2) TTL circuit
Input (RESET)
7HC14 equivalent Set to LOW when reset