ITC-5 not recognizing transducers

[Hoehn000]

I've recently installed a new Raymarine seatalkng system including EV-100 Wheel Autopilot, p70 display, es75 MFD, ITC-5 and i70 display. Upon installing es75, I updated software on es75 as well as other components. Autopilot and es75 work very well and are communicating together without issue. es75 and i70 recognize ITC-5, but no transducers. LEDs on ITC-5 for speed/temp and depth transducers are constantly blinking along with other LEDs that don't have transducers hooked up. Transducers are airmar previously fitted to s60 displays and worked without issue. If I remove transducer cables from ITC-5 and hook back up to s60 displays they work fine. Boat is on the hard so depth doesn't read, but it should still register with ITC-5.

Currently the ITC-5 is in the middle of the backbone with one blue port being fed from a 5 way with a blue terminator, spur is going to i70 and other backbone is going to a terminated T that spurs to the es75. I've attempted all possible wiring combos with the ITC-5 including removing all other unnecessary components and nothing works. Any help would be much appreciated.