Part Number: 05A081-10 (Data bus coupler) Part Number: 05A081-11 (Data bus coupler) Part Number: 05A081-12 (Data bus coupler) Part Number: 05A081-13 (Multiplexer coupler data.) Part Number: 05A081-14 (Data bus coupler) Part Number: 05A081-15 (Data bus coupler) Part Number: 05A081-2 (Data bus coupler) Part Number: 05A081-3 (Component) Part Number: 05A081-5 (Data bus coupler) Part Number: 05A081-6 (Coupler) Part Number: 05A081-7- (Elect.) Part Number: 05A081-8 (Multiplexer data) Part Number: 05A081-9 (In-line coupler) Part Number: 05A082-1 (Fastener)