SMC Networks 1232 Series user manual PC/104 serial interface, Signal Function PIN Nr, Computer

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CPU

PARALLEL PORT

SERIAL PORT 1

SERIAL PORT 2

HOST COMPUTER

Parallel VP cable (*)

Serial VP cable (*)

Short RTS1 with CTS1 (or DTR1 with RI1) for using VP mode with SERIAL1 Short RTS2 with CTS2 (or DTR2 with RI2) for using VP mode with SERIAL2

VP mode with Parallel DOESN’T NEED ANY SHORTs

VP adjustment (this end only)

RTS

CTS or

DTR RI

= short circuit

(*)This VP cables must be made observing the connections explained in the following tables

Figure 23. Completing the VP connection

Table 22. Serial1 and 2 VP cable connections

PC/104 serial interface

J5 SERIAL1	DB25	DB9	Signal	Function
PIN Nr.	PIN Nr.	PIN Nr.
3	3	2	RX	Receive Data
5	2	3	TX	Transmit data
9, 10	7	5	GND	Signal Ground

HOST PC serial interface

Signal	DB25	DB9
	PIN Nr.	PIN Nr.
TX	2	3
RX	3	2
GND	7	5

For VP mode connect RTS1 with CTS1, or DTR1 with RI1.

Pins not included in the table above are not connected

		Table 23.		Parallel VP cable connections
	From PC/104				VP2000 Cable			To Host
	Parallel connector							Computer
	J5 PARALLEL		DB25		Signal	Signal	DB25	Parallel
	PIN Nr.		PIN Nr.				PIN Nr.	port
1		1		STB#*	ACK#*	10
	2	14		AFD#	BSY	11
	3,5,7,9,11,13,15,17		2..9		PD#*	PD#*	2..9
	6		16		INIT#*	PE	12
	8	17		SLIN#*	SLCT	13
	19	10		ACK#*	STB#*	1
	21	11		BSY	AFD#	14
	23	12		PE	INIT#*	16
	25	13		SLCT	SLIN#*	17

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