The XFL823A is a Pluggable LonWorks Bus Binary Input Module with 12 binary inputs, used in Honeywell Excel Web (Excel 5000 Open System) for binary signal acquisition.
The XFL822A is a Pluggable LonWorks Bus Analog Output Module with 8 analog outputs, used in Honeywell Excel Web (Excel 5000 Open System) for analog signal output.
The XFL821A is a Pluggable LonWorks Bus Analog Input Module with 8 analog inputs, used in Honeywell Excel Web (Excel 5000 Open System) for analog signal acquisition.