NCR 7870 manual RS-232 Parameters

A-14 Appendix A: Programming Worksheets

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RS-232 PARAMETERS - 1

A

B

Baud Rate

Parity

0		1		2		3		4	5	6
300	600		1200		2400		4800		9600	19200
						Note: On a 7870-2000, 4000, or 4500,
0		1		4
								Parity must be Odd or Even. If
Odd		Even		None
								None is selected, Odd is used.

C

Stop Bits And	0		1		2		3
Character	1 Stop Bit		1 Stop Bit		2 Stop Bits		2 Stop Bits
Length	7-Bit Character	8-Bit Character		7-Bit Character		8-Bit Character

D

Handshake

0

1

2

	RTS Low		RTS High	Raise RTS
CTS Ignored		CTS Ignored		Wait for CTS
	3		4	5
Raise RTS			RTS Low	RTS High
Ignore CTS		Wait for CTS		Wait for CTS

Your Program

A

B

C

D

2

0

RS-232	Baud	Parity	Stop Bits And	Handshake
Parameters - 1	Rate		Character Length

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