User Manual Manual
© Sealevel Systems, Inc. 
SL9104 Revision 7/2006 
SeaLINK PIO-48 User Manual
Table of Contents 
INTRODUCTION......................................................................................................................... 1 
O
THER SEALEVEL SEALINK USB TO DIGITAL I/O PRODUCTS................................................... 1 
BEFORE YOU GET STARTED................................................................................................. 2 
W
HAT’S INCLUDED...................................................................................................................... 2 
OPTIONAL ITEMS.......................................................................................................................... 2 
SOFTWARE INSTALLATION.................................................................................................. 4 
W
INDOWS 98/ME/2000/XP INSTALLATION................................................................................. 4 
PHYSICAL INSTALLATION .................................................................................................... 5 
DIGITAL I/O INTERFACE........................................................................................................ 6 
50-
PIN HEADER CONNECTORS ..................................................................................................... 6 
PROGRAMMING THE SEALINK PIO-48 .............................................................................. 7 
PROGRAMMING FOR WINDOWS.................................................................................................... 7 
SAMPLES AND UTILITIES.............................................................................................................. 7 
ELECTRICAL CHARACTERISTICS ...................................................................................... 8 
SPECIFICATIONS........................................................................................................................... 8 
EXAMPLE CIRCUITS................................................................................................................9 
APPENDIX A - TROUBLESHOOTING ................................................................................. 10 
APPENDIX B - HOW TO GET ASSISTANCE ...................................................................... 11 
APPENDIX C – SILK SCREEN – 8203 PCB .......................................................................... 12 
APPENDIX D - COMPLIANCE NOTICES............................................................................ 13 
FEDERAL COMMUNICATIONS COMMISSION STATEMENT ........................................................... 13 
WARRANTY............................................................................................................................... 14 










