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Discrete-to-Digital

Holt’s range of Discrete-to-Digital components provides a robust solution for sensing Open / Ground and 28V / Open discrete signals. These devices are typically used in simple sensing applications such as detecting open hatches or doors.

Device	Device Type	Description	Released	Datasheet
HI-8420	Open/Ground 6 channels	Discrete input sensing device with tri-state outputs.	2001	HI-8420 Rev. E - updated 5/17/2011
HI-8421	28V/Open 6 Channels	Discrete input sensing device with tri-state outputs.	2001	HI-8421 Rev. F - updated 5/17/2011
HI-8422	Open/Ground 8 Channels and 28V/Open 8 Channels	Discrete input sensing device with tri-state outputs.	2001	HI-8422 Rev. G - updated 5/17/2011
HI-8423	Open/Ground 8 Channels	Discrete input sensing device with tri-state outputs.	2001	HI-8420 Rev. E - updated 5/17/2011
HI-8424	28V/Open 8 Channels	Discrete input sensing device with tri-state outputs.	2001	HI-8421 Rev. F - updated 5/17/2011