Omega DPF78, DPF76, DPF75 manual Computer Hookup, DP -9 Connector Computer, Printer Hookup

RS232 / RS422 WIRING

RS 232

COMPUTER HOOKUP:

RS 232: When connecting the unit to a computer with RS 232 communication, only three connections are needed. These connections are: Receive data, Transmit data and Ground. The connections should be made as follows:

RST	A	B	C	D	E
ENTER LOCK		PRE A PRE B		VIEW	PRGM

RECEIVE PIN (3)

TRANSMIT PIN (2)

GROUND PIN (5)

DP -9 CONNECTOR	COMPUTER
Transmit data (pin 2)	Receive data
Receive data (pin 3)	Transmit data
Ground (pin 5)	Ground

	RS 422
	RECEIVE A (+) PIN (3)
	RECEIVE B (-) PIN (8)
RST A B C D E	TRANSMIT A (+) PIN (2)
ENTER LOCK PRE A PRE B VIEW PRGM
	TRANSMIT B (-) PIN (7)
	GROUND PIN (5)

RS 422: When connecting the unit to a computer with RS 422,

five connections are needed. These connections are: Re- ceive data A (+), Receive data B (-), Transmit data A (+), Transmit data B (-) and Ground. The connections should be made as follows:

9	8		7	6
5	4	3	2	1

DP -9 CONNECTOR Transmit data A(+) (pin 2 Transmit data B(-) (pin 7) Receive data A(+) (pin 3) Receive data B(-) (pin 8) Ground (pin 5)

COMPUTER

Receive data A(+) Receive data B(-) Transmit data A(+) Transmit data B(-)

Ground

RS 232		RS 422
1.	INITIALIZE	1.	INITIALIZE
2. TRANSMIT		2. TRANSMIT A (+)
3. RECEIVE		3. RECEIVE A (+)
4.	N/C	4.	N/C
5. GROUND		5. GROUND
6. STROBE		6. STROBE
7.	N/C	7.	TRANSMIT B (-)
8.	N/C	8.	RECEIVE B (-)
9.	N/C	9.	N/C

PRINTER HOOKUP:

When connecting the unit to a printer, you must first program the desired baud rate, parity and strobe list with a computer. After the unit is programmed it can be connected to the printer. Connect the transmit line(s) of the unit to the receive line(s) of the printer and be sure that both devices have common grounds. When the strobe line is triggered the unit will transmit the selected strobe list which you had previously pro- grammed.

RS 232

STROBE PIN (6)

+12V PIN (7) (BOTTOM BOARD)

RST A B C D E	TRANSMIT PIN (2)
ENTER LOCK PRE A PRE B VIEW PRGM

GROUND PIN (5)

	RS 422
	STROBE PIN (6)
	+12V PIN (7)
	(BOTTOM BOARD)
RST A B C D E	TRANSMIT A (+) PIN (2)
ENTER LOCK PRE A PRE B VIEW PRGM
	TRANSMIT B (-) PIN (7)
	GROUND PIN (5)

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