Opticon NFT 1125, NFT 2135 manual Electrical Specifications, RS232 Communications Specifications

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Manual No. 25-NFT1121-01

Series NFT-1121/2135 Mini CCD Fixed Position Scanners

Electrical Specifications

Operating Voltage +5VDC + 10%

Current Consumption
Dynamic	40 mA	typical / 80 mA maximum
Static	15 mA	maximum
Surge	1.5 A	maximum, 0.75A/25 µS

RS232 Communications Specifications

RS232 Data Transmission Format

Parameter	Default	Optional Settings
Timing	Asynchronous
No. of Start Bits	1 bit
No. of Stop Bits	1 bit	1 or 2 bits
No of Data Bits	8 bits	7 or 8 bits
Parity	None	Odd / Even / None
Baud Rate	9600 baud	150 to 19200 baud
Handshaking	None	Hardware / Software / None

RS232 Transmit/Receive Character Format

TXD/	Start
RXD	Bit

RS232 Data Format

Transmit:

Receive:

	LSB		7 or 8	MSB
	LSB		Data Bits	MSB
			Data Bits

		Decoded Data

	ESC		Command

Parity

Bit

CR

CR

Stop

Bit

RS232 Signal Level

		RS232C Level
Signal Name	I/O	Mark/Off	Space/On
TXD	Out	-5 to –15	+5 to +15
RXD	In	-3 to –15	+3 to +15

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Contents User’s Manual Series NFT 1125/2135This page left intentionally blank for repagenation Contents This page left intentionally blank for repagenation Organization of this Manual This page left intentionally blank for repagenation Section Introduction and Getting Started Quick Start-Up Procedure Product Overview Page Symbologies Supported Section Technical SpecificationsPhysical Specifications Optical SpecificationsElectrical Specifications RS232 Communications SpecificationsConnector Pin-Outs Environmental SpecificationsPage Section Positioning the Scanner Getting Optimum PerformanceField-of-View Maximum Readable Bar Code Width LEDs Measuring Scanner Performance Read Rate TestTips for Achieving High Throughput Application NotesTips for Insuring Highest Data Integrity Tips for Verifying the Presence of a Bar Code Programming Menus & Commands Section Configuring the ScannerDefault Settings Page Common Causes of Poor Performance Section Application Engineering SupportTechnical Assistance and Support Modified and/or Customized ScannersPage Appendix a Programming Menus & Commands Index Introduction Programming via Computer CommandsProgramming via Bar Codes Page Global Default & Scanner Configurations Computer Function Bar Code Command DescriptionSymbology Selection Add/Activate Specific Bar Code Symbologies Symbology SelectionAdd/Activate Specific Bar Code Symbologies Delete/Deactivate Specific Bar Code Symbologies Options for UPC Options for Code Options for Codabar NW-7 Options for Codabar NW-7 Options for 2 5 Standard and Interleaved FormatOptions for Iata CPNFixing the Number of Digits Creating a Prefix and/or Suffix Setting Prefixes Identifying the Symbology Setting Suffixes Identifying the Symbology Setting Prefixes Identifying the SymbologySetting Suffixes Identifying the Symbology Direct Input of Numeric Characters Direct Input of Alpha Characters Enable Number of Characters/Digits Transmitted Direct Input of Control CharactersEnable Number of Characters/Digits Transmitted START/ENDDisable Number of Characters/Digits Transmitted Disable Number of Characters/Digits Transmitted Communication ParametersCommunication Parameters Handshaking Buzzer Operation Positive & Negative Bar Codes Buzzer OperationSetting the Trigger Function Selecting the Read Mode Scanner Timeout Trigger Enabled Mode only Redundant Decoding Transmitting Error Indications Trigger Enabled only STX?ETX for no readPrint Quality Adjustments Page Appendix B Dimensional Drawings 1126/2126 Side View1127/2127 Front View Appendix C Optical Performance Charts