CBM-710/720/730/750User ’sMa nual
30 CITIZEN
(6) Electrical Characteristics
a) RS-232CCircuit
Input (RD)
MAX232 or equiva lent Mark = (-8V): Stop bit
Space = (-8V):Start bit
Output (DTR, TD, FAULT)
MAX232 or equivalent
*DTR (–8V): BUSY *TD Mark =(–8V): 1
(+8V): READY Space = (+8V): 1
*FAULT (–8V): Normal
(+8V): Abnormal