iDP-3420/3421/3423 User’s Manual

9.3.2Electrical Characteristics

(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 kW.

[Printer Side]

[Host Side]

TwistedPair Wire

All the output signals are pulled up at 3.3kW.

[Printer Side]

[Host Side]

TwistedPair Wire

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Citizen Systems iDP-3423, iDP-3420, iDP-3421 user manual Electrical Characteristics