Electrical Characteristics - Citizen CBM-910 Bedienungsanleitung

6.4

Electrical Characteristics

(1) RS-232C I/O Signals (RD / TD / DTR)
∗Input (RD / TD) Mark = (-8V):
∗Output (DTR)
(2) TTL Circuit
Input (RESET)
Set to low when reset
CITIZEN
stop bit
Space = (+8V): start bit
Mark = (-8V): for Busy
Space = (+8V): for Ready
[HOST] [CBM-910]
[HC04 or equivalent]
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CBM-910 User's Manual