Intarsia carriage KA8200 is compatible with a wider variety of standard-gauge Brother knitting machines, especially those in which carriages do not have built-in intarsia capabilities.
The manual specifically mentions that the row counter/knit-leader tripper, used as a release knob for the carriage, activates the row counter for the KH830, KH840, and KH860 machines.
The carriage works when the needles are in D position. When your needles are in B position, they will be brought to D position automatically. The yarn is laid on the needles with open latches.
The carriage also comes with two kinds of trippers: for row counters and for knit leaders. Refer to the manual for more information. Unlike its earlier model, Brother KA8200, Brother KA8210 comes with sinkers for maintaining even yarn tension for all colors.
Both KA8200 and KA8210 are compatible with all standard-gauge 24-stitch punch-card and electronic Brother machines.
Pictures are coming soon.