NCR 74 OFX (7874)

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1-6 Chapter 1: Product Information

Specialprogrammingisrequiredforeachperipheraldeviceusingaperipheral

port.Theconnectoriswiredasfollows.

Auxiliary RS232 Peripheral Port

Pin Number Signal Name

1 +5Vdc

2 NC

3 GND

4 TXD

5 RXD

6 +12Vdc

7 CTS

8 RTS



TheRealScan74AuxiliaryRS232PeripheralPorthardwareislimitedtothefollowing

fixedparameters.

BaudRate 9600

Parity Even

StopBits 1

NumberofDataBits 7

HardwareHandshaking Hardware

TerminatorCharacter CRLF

UPC‐APrefixCharacter A

UPC‐EPrefixCharacter E

EAN8PrefixCharacter FF

EAN13PrefixCharacter F

Code128PrefixCharacter f

Code39PrefixCharacter a

Interleaved2of5PrefixCharacter b

GS1Databar(GS1Databar‐14andExpanded) r

Codabar N

Pharmacode a



NCR 74 OFX (7874) - Page 22