Data I/O UniSite-xpi User Manual page 29

Site48HS (Legacy)
Pin Driver (Legacy)
UniSite-xpi User Manual
Replaces Site40 and Site48 on legacy UniSites and increases support for
DIP devices to 48 pins.
Provides additional support for devices with higher pin counts. Each pin
driver board provides additional support for 4 pins. For example, if your
UniSite has 10 pin drivers, you can program devices with up to 40 pins. If
you want to program 48-pin devices, you will need to add two pin driver
boards to your UniSite.
1. Introduction
1-9