P.A.X. 15
A 50v, single unit equipment using uniselectors and miniature relays.  Capacity 15 lines and 2 connecting circuits.

P.A.X. 25
A 24v, single-unit equipment operating on the 'line circuit control' principle and employing uniselector type linefinders and connectors. The unit is totally enclosed. Capacity 25 line and 4 connector circuits.

P.A.X. 50
A 24v, single-unit equipment operating on the 'register control' principle and employing uniselector type linefinders, registers and connectors. The unit is totally enclosed. Capacity 50 line, 2 register and 7 connector circuits.

P.A.X. 50/400
A 50v, extensible equipment operating on the 'register control' principle and employing uniselector type linefinders, registers, group selectors and connectors. Units are totally enclosed. Extensible from 50 to about 400 lines.

P.A.X. TWO-MOTION
A 50v, extensible equipment normally employing linefinder uniselectors and two-motion group and final selectors. The equipment is mounted on open racks. Extensible from about 200 lines to any required capacity. An alternative line uniselector system with two-motion selectors is offered.

Last revised: November 24, 2025