Omega Vehicle Security OMG-USB-DIO48 manual Pull Ups

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Technical

Pull Ups

Ten pin bussed resistor packs are installed to provide pull-ups to the input ports. These are installed on all ports. The pull-up resistor packs are rated at 10K ohms. Figure 2 below provides the bussed resistor and corresponding port. The resistors insure that no line is floating which is not connected. This provides consistent biasing on all un-terminated lines.

Bussed

Corresponding

Resistor

Port

RP3

Port A1

RP2

Port B1

RP1

Port C1

RP6

Port A2

RP5

Port B2

RP4

Port C2

Figure 2- Pull Up Resistors

OMG-USB-DIO48

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Contents User’sGuide Canada MexicoBenelux Czech RepublicContent Figures Installation IntroductionOverview What’s Included3rd Party Software Support Technical DescriptionSoftware Electrical Characteristics Operating ConditionsPull Ups Banks and Ports Serial StringPin ribbon cable pin out 50 Pin Header/Ribbon Cable Pin outPresetting an Output Port ProgrammingApplication Programmers Interface API InterruptsPort Configuration Absolute Byte Address Same for any configuration Relative Addressing vs. Absolute AddressingAbsolute Bit Address Same for any configuration Bank 1 P2 Bank 2 P3 Address Port Specifications Environmental SpecificationsPower Consumption Mean Time Between Failures MtbfAppendix a Troubleshooting Appendix B How To Get Assistance Appendix C Silk-Screen Appendix D Compliance Notices WARRANTY/DISCLAIMER Temperature