Functions of current mode coupler in ARINC-629

Question

Write down some of the functions of current mode coupler in the ARINC-629?

Answer 1

Its function can be listed as follows:

a) Offers Non-intrusive connection to bus.
b) Gives Low Impedance to Bus under all conditions.
c) Transmits/Receives Doublets onto/from the Bus.
d) Decodes SIM Doublet Polarity for the Channel selection.
e) Offers suitable Receive Doublet Polarity for SIM.
f) Shuts Down Transmitters on the Power Reversal.