・Alternating grounds on I/O pins
・Real time loopback
・Positive or negative true data I/O option
・Nonprivileged or supervisory short I/O transfers
・8- or 16-bit transfers
・Double Eurocard form factor
・24 mA output current sink capability
・Individual port direction control jumpers
・128 bits of TTL compatible I/O
・Real time loopback
・Positive or negative true data I/O option
・Nonprivileged or supervisory short I/O transfers
・8- or 16-bit transfers
・Double Eurocard form factor
・24 mA output current sink capability
・Individual port direction control jumpers
・128 bits of TTL compatible I/O
