Electrical Characteristics - Citizen CBM1000 Bedienungsanleitung

6.2.2 Electrical Characteristics

Input signal level (STB, DATA 1-8)
All the input signals are at the C-MOS level.
"HIGH" level: 4.0 V minimum
"LOW" level: 0.9 V maximum
Output signal level
All the output signals are at the C-MOS level.
"HIGH" level: 2.4 V minimum
"LOW" level: 0.4 V maximum
Input and output conditions
All the input signals, DATA 1-8, are each pulled up with 50 kΩ resistor, and the
other input signals are each pulled up with a 3.3 kΩ resistor.
[Printer Side]
All the output signals, DATA 1-8, are each pulled up with a 50 kΩ resistor, and the
other output signals are each pulled up with a 3.3 kΩ resistor.
[Printer Side]
Vcc
Twisted Pair Wire
Vcc
Twisted Pair Wire
— 28 —
[Host Side]
[Host Side]