The 2nd Loco of the 1st Pair Got Push Pull Enabled.
30530 Gomoh Wap-7 (Ex VSKP) assembled by CLW, got Push Pull Enabled. MU Port is like Fuse which has been Integrated so that Power from Master Loco to Slave can go thru 1 Port instead of 2.
30544 is the First Loco which got Push Pull Enabled of Gomoh ELS.