Fujitsu C145-C037-01EN RS-232C interface signals, Pin Signal name Direction Description Number

5.4.2Connector pin assignment

Connector (cable side):

D-subminiature Cannon or Cinch DB-9 plug or an equivalent connector that conforms to EIA standards

Figure 5.11 shows the serial interface connector.

1	5	(Cable side)
6	9	(Male type)

Figure 5.11 Serial interface connector

Signal definition:

Table 5.3 lists RS-232C interface signals and their functions.

Table 5.3 RS-232C interface signals

Pin	Signal name	Direction	Description
number
1	RTS	Output	Request to Send
			Space state when the printer is ready to transmit data
2	TD	Output	Transmitting Data
3	RD	Input	Receiving Data
4	DSR	Input	Data Set Ready
			The printer can receive or transmit data when this signal is in the
			space state.
5	SG		Signal Ground (common return)
6, 8	DTR	Output	Data Terminal Ready
			Space state when the printer is ready to receive or transmit data

Notes:

1.The space state corresponds to the high level of the interface signal.

2.The direction (output or input) is viewed from the printer side.

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