Below is a list of Blastronix manuals in PDF format.
232 and 422/485 232 2S PCI 232 2S1P PCI 232 4S PCI 232 4S RJ45 232 8S PCI 422 2S PCI 422 4S PCI 422 8S PCI VCR/VTR Controller 2 Port PCI 4 Port PCI 8 Port PCI
Current Loop 2 Port PCI 4 Port PCI