SeaLINK PIO-48 User Manual Part Number 8203 www.sealevel.com PO Box 830 Liberty, SC 29657 864.843.
Table of Contents INTRODUCTION......................................................................................................................... 1 OTHER SEALEVEL SEALINK USB TO DIGITAL I/O PRODUCTS ................................................... 1 BEFORE YOU GET STARTED................................................................................................. 2 WHAT’S INCLUDED ...................................................................................................................
Introduction The SeaLINK PIO-48, part number 8203, provides an easy method for interfacing common digital I/O circuitry via any computer’s USB port. Typical applications include control/monitoring of TTL devices (e.g. LEDs, small solenoids, small relays) and interfacing to solid-state relay racks (SSRs) for high-power AC or DC loads. The SeaLINK PIO-48’s 48 digital I/O channels are accessed via two 50-pin header connectors with industry-standard pin out.
Before You Get Started What’s Included The SeaLINK PIO-48 is shipped with the following items. If any of these items is missing or damaged please contact Sealevel for replacement. SeaLINK PIO-48 Module Sealevel SeaI/O Software CD AC/DC 5V Power Supply (Item# TR101) 6’ USB A to B Cable (Item# CA179) Optional Items Depending upon your application, you are likely to find one or more of the following items useful for interfacing the SeaLINK PIO-48 to real-world signals.
For high-current, high-voltage applications: IDC 50 to IDC 50 Pin Ribbon Cable (Part Number CA167) − 40” cable connects the SeaLINK PIO-48 to solid-state relay racks equipped with 50-pin header interface. IDC 50 to IDC 50 Pin Ribbon Cable (Part Number CA135) − 40” cable connects the SeaLINK PIO-48 to solid-state relay racks equipped with 50-pin edge connector. Solid-State Relay Racks: • Quad six position relay rack (Part Number PB24HQ) − Relay rack can accept up to six QSSRs for a total of 24 channels.
Software Installation Windows 98/ME/2000/XP Installation Important: Do not connect the SeaLINK PIO-48 adapter to the host USB device until the software has been fully installed. 1. Start Windows. 2. Insert the Sealevel Systems CD in to your CD drive. 3. If ‘Auto-Start’ is enabled for this drive the software will automatically launch. Otherwise, point your browser to the ‘Index.htm’ on the root directory of the CD 4. Select ‘Install Software’. 5. Select the Part Number for your adapter from the listing. 6.
Physical Installation The SeaLINK PIO-48 can be installed in any open USB port. Do not plug the unit into a USB port until the software has been fully installed. 1. Simply connect the SeaLINK PIO-48 to your USB port with the supplied cable. 2. The software drivers installed during setup will automatically recognize and configure the device. 3. You should see one or more “New Hardware Found” windows, indicating the actual device being created. 4. Next, view your system’s Device Manager. 5.
Digital I/O Interface The SeaLINK PIO-48’s 48 digital I/O channels are accessed via two industrystandard 50-pin header connectors. Each header provides 24 bits of digital I/O divided into three eight-bit ports. Each port may be individually configured via software command as input or output. 50-pin Header Connectors You will need to open the SeaLINK PIO-48’s enclosure to access the two header connectors P2 and P3 (see Appendix B for connector locations).
Programming the SeaLINK PIO-48 Sealevel’s SeaI/O software is provided to assist in the development of reliable applications for the Sealevel Systems family of digital I/O adapters. Included on the SeaI/O CD are driver functions for use in accessing the I/O as well as helpful samples and utilities. Programming for Windows The SeaI/O API (Application Programmer Interface) provides a variety of useful high-level function calls implemented in a Windows dynamic link library (DLL).
Electrical Characteristics The SeaLINK PIO-48 uses 74ABT245 octal bi-directional transceivers to provide TTL input/output capabilities. Each bit is pulled to +5V through a 10K ohm pull-up resistor to insure each bit is at a known state when not driven. Specifications Inputs Logic High: Logic Low: Min 2VDC Max 0.8VDC Outputs Logic High: Logic Low: Min 2VDC @ 32 mA Max 0.5VDC @ 64 mA Temperature Range Operating: Storage: 0°C – 70°C -50°C – 105°C Power Requirements 5VDC @ 400mA (no load); +5VDC @ 2.
Example Circuits © Sealevel Systems, Inc.
Appendix A - Troubleshooting Following these simple steps can eliminate most common problems. 1. Install software first. After installing the software then proceed to adding the hardware. This places the required installation files in the correct locations. 2. Read this manual thoroughly before attempting to install the adapter in your system. 3. Use Device Manager under Windows to verify proper installation. 4.
Appendix B - How To Get Assistance Begin by reading through the Trouble Shooting Guide in Appendix A. If assistance is still needed please see below. When calling for technical assistance, please have your user manual and current adapter settings. If possible, please have the adapter installed in a computer ready to run diagnostics. Sealevel Systems provides an FAQ section on its web site. Please refer to this to answer many common questions. This section can be found at http://www.sealevel.com/faq.
Appendix C – Silk Screen – 8203 PCB © Sealevel Systems, Inc.
Appendix D - Compliance Notices Federal Communications Commission Statement 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 provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Warranty Sealevel's commitment to providing the best I/O solutions is reflected in the Lifetime Warranty that is standard on all Sealevel manufactured products. We are able to offer this warranty due to our control of manufacturing quality and the historically high reliability of our products in the field. Sealevel products are designed and manufactured at its Liberty, South Carolina facility, allowing direct control over product development, production, burn-in and testing. Sealevel Systems, Inc.
