Hi has RELB5HD, with 4 on board relays.
Heavy Duty Relay Board
with • All TTL +5VDC or +3.3VDC Signals.
Interface directly with parallel port interface products and other controls 5VDC (TTL) signals are very common among automation devices.

Works With the Parallel Port Board.
Connect easily with the Parallel Interface Board, or any port pin.

Works directly with popular CNC hardware and software. . Such as Rhonmac-cnc, Geckodrive, Desk CNC or Rutex, and parallel port control software, such as Mach2 and Mach3, Linux EMC, Turbo CNC, CNC Player and others (Not all tested)
Data Sheet
Controls 4 AC devices per card.Output at 230 3 x 5 amp relays and 1 x 15 amp relay .
Independent fuses for each connection.

i will ask him for more info.