Omega OMG-USB-DIO48 - Manual

Introduction and Installation OMG-USB-DIO48 Page 1 Introduction Overview The OMG-USB-DIO48 provides six eight-bit ports that may be individually configured as inputs or outputs. What’s Included The OMG-USB-DIO48 is ship ped with the following items. If any of these items is missing or damaged, conta...

Technical OMG-USB-DIO48 Page 2 Technical Description The OMG-USB-DIO48 provides 48 channels of digital I/O configurable as inputs or outputs. Applications include PC based control and automation of sensors, switches, satellite antenna control systems, video and audio studio automation, security cont...

Technical OMG-USB-DIO48 Page 3 Electrical Characteristics Figure 1, below provides the electrical characteristics of each Input/Output. Each port is buffered with a 74ABT245 octal bi-directional transceiver. Each input is capable of sinking up to 64 mA, while each output can source up to 32 mA. The ...

Technical OMG-USB-DIO48 Page 4 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 tha...

Technical OMG-USB-DIO48 Page 5 Banks and Ports The OMG-USB-DIO48 has two 50 pin headers. Each 50 pin header is a bank of three ports, comprising a total of six eight bit ports. Each port is eight bits wide and may be configured as an input or output port. Figure 3 below gives the bank and port organ...

Technical OMG-USB-DIO48 Page 6 50 pin ribbon cable pin out Each of the two 50 pin ribbon cable headers has the following pin out as shown in Figure 4. Description Pin # Port A A0 47 A1 45 A2 43 A3 41 A4 39 A5 37 A6 35 A7 33 Port B B0 31 B1 29 B2 27 B3 25 B4 23 B5 21 B6 19 B7 17 Port C C0 15 C1 13 C2...

Programming OMG-USB-DIO48 Page 7 Programming Application Programmers Interface (API) The SeaIO driver, API, and utilities have been included to provide control over the hardware in Windows environments. The following section is designed to help the customer understand the API connection to the actua...

Programming OMG-USB-DIO48 Page 9 Relative Addressing vs. Absolute Addressing The SeaIO API makes a distinction between “absolute” and “relative” addressing modes. In absolute addressing mode, the Port argument to the API function acts as a simple byte offset from the base I/O address of the device. ...

Specifications OMG-USB-DIO48 Page 12 Figure 9- Bit Relative Address (Print and fill in for your configuration) Specifications Environmental Specifications Specification Operating Storage Temperature Range 0º to 50º C (32º to 122º F) -20º to 70º C (-4º to 158º F) Humidity Range 10 to 90% R.H. Non-Con...

Appendix A - Troubleshooting OMG-USB-DIO48 Page 13 Appendix A - Troubleshooting Following these simple steps can eliminate most common problems. Install software first . After installing the software then proceed to adding the hardware. This places the required installation files in the correct loca...

Appendix B - How To Get Assistance OMG-USB-DIO48 Page 14 Appendix B - How To Get Assistance Please refer to Troubleshooting Guide prior to callin g Technical Support. 1. Begin by reading through the Trouble Shooting Guide in Appendix A. If assistance is still needed please see below. 2. When calling...

Appendix D - Compliance Notices OMG-USB-DIO48 Page 16 Appendix D - Compliance Notices Federal Communications Commission Stateme nt FCC - This equipment has been tested and found to comply with the limits for Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to p...

WARRANTY/ DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for aperiod of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping...