Citizen Systems iDP-3421 Printer User Manual


 
iDP-3420/3421/3423 User’s Manual
44 CITIZEN
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(1) Input signal level
All the input signals are at the TTL level.
"HIGH" level: 2.0 V at minimum
"LOW" level : 0.8 V at maximum
(2) Output signal level
All the output signals are at the TTL level.
"HIGH" level: 2.4 V at minimum
"LOW" level : 0.4 V at maximum
(3) Input and output conditions
All the input signals are pulled up at 3.3 k
W
.
[Printer Side] [Host Side]
All the output signals are pulled up at 3.3k
W
.
[Printer Side] [Host Side]
Twisted Pair Wire
Twisted Pair Wire