GPIO NPN Breakout Block for use with FS/VS 40 and 70.  Features 4pin DC Power Input (power supply required), 12pin port for device connection, 4pin RS232 Serial, 4pin Trigger Input, 2x 4pin GPIO, 2x 4pin Output, 4pin 24VDC Output Port.   (Zebra BLOK-008NP-01)