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A Specifications
187
Appendix
Meaning of the signals
When the bi-directional is set to Disable:
● nStrobe(Pin No.1)
The synchronous signal for the reading of Data 1-8; needs the LOW active pulse.
● Data1-8(Pin No.2-9)
For the 8-bit parallel data input, Data 1 is LSB (lowest bit) and Data 8 is MSB (uppermost
bit).
● nAck(Pin No.10)
A LOW active pulse signal which indicates that the received data has been taken in.
●
Busy(Pin No.11)
A HIGH active signal which indicates that the printer is unable to receive data.
●
Perror(Pin No.12)
A HIGH active signal which indicates that there is no more paper.
● Select(Pin No.13)
A HIGH active signal which indicates that it is possible to receive data.
● nAutoFd(Pin No.14)
The signal when the bi-directional is Enable.
●
Chassis Gnd(Pin No.17)
Connected to frame ground.
● Peripheral Logic High(Pin No.18)
● +5V voltage on the host side.
● Signal Ground(Pin No.19-30)
Connected to the various signal ground.
● nInit(Pin No.31)
The LOW active pulse signal which requests for the initialization of the printer.
● nFault(Pin No.32)
The LOW active signal which indicates that errors such as paper jams have occurred in the
printer.
● nSelectIn(Pin No.36)
The signal when the b-idirectional is Enable.
When the bidirectional is set to Enable:
All connection adheres to the IEEE1284 connector standard.