User`s manual

BD2-2860 User’s Manual
CITIZEN
23
7.7 Electrical characteristics
(1) RS-232C Circuit
Input (RXD, DSR)
<Printer side> <Host side>
Output (DTR, TXD)
Equivalent MAX232
Mark=(-8V): At Busy Mark=(-8V): 1
Space=(+8V): At Ready Space=(+8V): 0
E
q
uivalent MAX232
RXD
Mark=
(
-8V
)
:Sto
p
bit
S
p
ace=
(
+8V
)
: Start bit
DTR
TD