This device uses a 28-pin ribbon mounted dip header, 28-pin ribbon cable (18-24"), 34-pin IDC header, Phillips NC7SZ32M5X? , 74HCT573, and 28-pin DIP socket in order to allow remote mounting of the chip.
By introducing the line driver on the data lines from the chip back to the ECU target device, it should take care of signal strength issues which typically cause problems with remotely mounted chips.
-- CraigMoates - 25 Dec 2006