Digi BL1800 user manual CE Compliance, Immunity, Emissions

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1.4 CE Compliance

Equipment is generally divided into two classes.

	CLASS A	CLASS B

	Digital equipment meant for light industrial use	Digital equipment meant for home use

	Less restrictive emissions requirement:	More restrictive emissions requirement:
	less than 40 dB µV/m at 10 m	More restrictive emissions requirement:
	less than 40 dB µV/m at 10 m	30 dB µV/m at 10 m or 100 µV/m
	(40 dB relative to 1 µV/m) or 300 µV/m	30 dB µV/m at 10 m or 100 µV/m
	(40 dB relative to 1 µV/m) or 300 µV/m

These limits apply over the range of 30–230 MHz. The limits are 7 dB higher for frequen- cies above 230 MHz. Although the test range goes to 1 GHz, the emissions from Rabbit- based systems at frequencies above 300 MHz are generally well below background noise levels.

The Jackrabbit single-board computer has been tested and was found to be in conformity with the following applicable immunity and emission standards. The BL1810 and BL1820 single-board models are also CE qualified as they are sub-versions of the Jackrabbit. Boards that are CE- compliant have the CE mark.

NOTE: Earlier versions of the Jackrabbit sold before 2002 that do not have the CE mark are not CE-complaint.

Immunity

The Jackrabbit series of single-board computers meets the following EN55024/1998 immunity standards.

•EN61000-4-3 (Radiated Immunity)

•EN61000-4-4 (EFT)

•EN61000-4-6 (Conducted Immunity)

Additional shielding or filtering may be required for a heavy industrial environment.

Emissions

The Jackrabbit series of single-board computers meets the following emission standards with the Rabbit 2000 spectrum spreader turned on and set to the normal mode. The spectrum spreader is only available with Rev. C or higher of the Rabbit 2000 microprocessor. This microprocessor is used in all Jackrabbit series boards that carry the CE mark.

•EN55022:1998 Class B

•FCC Part 15 Class B

In order for the Jackrabbit boards to meet these EN55022:1998 Class B standards, you must add ferrite absorbers to the serial I/O cables used for RS-232 and RS-485 serial com- munication. Depending on your application, you may need to add ferrite absorbers to the

4	Jackrabbit (BL1800)

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Contents Jackrabbit BL1800 Programmable Single-Board ComputerTrademarks Digi International IncTable of Contents Index Schematics Features IntroductionJackrabbit Features Development and Evaluation ToolsOnline Documentation How to Use This ManualAdditional Product Information Emissions CE ComplianceImmunity Interfacing the Jackrabbit to Other Devices SafetyDesign Guidelines General Jackrabbit BL1800 Development Kit Contents Getting StartedDevelopment Hardware Connections Board Attach Jackrabbit to Prototyping BoardConnect Programming Cable Assemble AC AdapterConnect Power Installing Dynamic C Troubleshooting Run a Sample ProgramTechnical Support Where Do I Go From Here?Real-Time Clock Subsystems BL1800Jackrabbit Pinouts HeadersDigital Inputs/Outputs Digital InputsDigital Outputs HV3 Sourcing OutputConfigurable High-Current Output Bidirectional I/O Changing HV3 to a Sinking OutputSchematic Diagram of A/D Converter A/D ConverterJackrabbit BL1800 Schematic Diagram of D/A Converters D/A ConvertersV ⋅ 1 e RC 1 DA1Typical DA1 Voltages for Various Duty Cycles 2 DA0 Typical DA0 Voltages for Various Duty CyclesUser’s Manual 2 RS-485 Serial Communication1 RS-232 Ground recommended Programming Port 485 R16User’s Manual Changing Between Program Mode and Run Mode Programming CableFlash Eprom MemorySram Clock Doubler Other HardwareExternal Interrupts Spectrum Spreader Jackrabbit BL1800 Software Reference An Overview of Dynamic CJackrabbit BL1800 Sample Programs Jackrabbit Sample ProgramsDEMOJR1.C Sample Program DEMOJR1.CSingle-Stepping Watch Expression Break PointWatching Variables Dynamically Summary of FeaturesEditing the Program User’s Manual Other Sample Programs Illustrating Digital I/O R/W pin and DB0-DB3 on 3 RS-232 Serial Communication Sample Programs 4 RS-485 Serial Communication Sample Program Cooperative Multitasking Int vswitch Advantages of Cooperative Multitasking Jackrabbit Function Calls 1 I/O DriversVoid digOutint channel, int value Void anaOutint channel, int value Void anaInint channel, int *value Serial Communication Drivers Add-On Modules Upgrading Dynamic CPatches and Bug Fixes Appendix A. Specifications Electrical and Mechanical Specifications Figure A-1shows the mechanical dimensions for the JackrabbitTable A-1. Jackrabbit Board Specifications Exclusion Zone Exclusion ZonesFigure A-3. User Board Footprint for Jackrabbit Jumper Configurations Figure A-4. Location of Jackrabbit Configurable PositionsTable A-2. Jackrabbit Jumper Configurations Conformal Coating Conformally coated areaUse of Rabbit 2000 Parallel Ports JackrabbitTable A-3. Jackrabbit Pinout Configurations PD0 PD1 Jackrabbit BL1800 Appendix B. Prototyping Board Jackrabbit Connectors User LEDs Buzzer Prototyping Board OverviewPrototyping Board Features Mechanical Dimensions and Layout Top SideUsing the Prototyping Board Top SideDemonstration Board RelayExisting Prototyping Board Top SidePE0 VCC HV0 SM1 SM0 HV2 Stat Jackrabbit BL1800 Appendix C. Power Management Power SuppliesDcin Current mA Batteries and External Battery Connections 950 mA·h = 5.4 years 20 µABattery Backup Circuit Figure C-5shows the Jackrabbit battery backup circuitryPower to Vram Switch Reset GeneratorFigure C-7shows a schematic of the chip select circuit Chip Select CircuitJackrabbit BL1800 Index SMODE0 SMODE1RABDB01.C RABDB02.C Schematics