Fujitsu DL9300, DL9400 SERIAL INTERFACE, Data Transmission Timing

INTERFACE INFORMATION

Data Transmission Timing

The Centronics interface of this printer guarantees the received data when the Data and Data Strobe signals from the computer have the following timing with respect to the Busy and Acknowledge signals from the printer.

Data 1 to Data 8

Data Strobe

BUSY

Acknowledge

	➤ ➤
	T4
T1	T2		T3	T5	T6
➤	➤➤	➤ ➤	➤	➤ ➤➤	➤

T1, T2, T3 > 1 µs

T4 < 1 µs

0 µs < T5 < 3 µs

2 µs < T6 < 6 µs

SERIAL INTERFACE	RS-232C is the standard serial interface for data terminal equipment.
	The cable connector at the printer side should be a D-subminiature
	Cannon or Cinch DB-25P male connector or equivalent that conforms
	to EIA standards.
	The table that follows shows the pin assignments commonly used by
	most computers. In the table:
	• “Input” denotes a signal from the computer to the printer.
	• “Output” denotes a signal from the printer to the computer.
	• The signal level for mark state (logical 1) is -3 V or lower; for
	space state (logical 0), it is +3 V or higher.

D-4 User's Manual