This board serves as a basic quad relay board
with 4 electromechanical relays.
• All TTL
+5VDC or +3.3VDC Signals. Interface directly with parallel
port interface products and other cnc4pc.com cards. 5VDC (TTL)
signals are very common among automation
• Works directly with popular CNC
hardware and software.
• Screw-On connections for all
terminals. You only have to screw-on the wires to make all
• Works as a set of switches for
powering your hardware. This board can be used for turning
on or off spindles, enabling contactors for large spindles, coolant
pumps, electro valves, etc.
• Controls 4 independent AC or DC
• The relays
can take loads of up to 10 amps 28vdc or 125VAC and 6 amps at
220VAC. Keep in mind that motors can draw up to 3 times
the rated current on start up.