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Jeffersonville, OH | Well, yes, the 2.5V is CAN...but in your 9 pin ISO connector you have 4 contacts clustered around each other at the top of the connector. 2 power, one large one small, and the same 2 ground. The large is High-Current, usually a 50A fuse or relay controlling it, and the 2 small are logic power and ground. Meaning, key on/key off, control type signals for the controllers on the network.
Then the bottom 5 wires in a semicircle have your CAN HI/LO, and the TBC circuits. TBC is the terminating resistor circuits that allow the CAN wiring the correct resistance to communicate.
So, no high-current can allow everything to power on, because you have the voltage for the controllers, and the TBC components, but depending on what WORK actually needs done through the circuits on the implement, the high current being gone could cause them to not be able to function.
Same thing with the logic power and ground being missing, but the high current being supplied. I have seen implements that would power up off the high current side, but some of the control circuits used the low current power and ground, so you could see everything, or see most things, but nothing would actually function because it was missing control circuits.
ISO is great, and very simple if you know how it works. I still can't believe the DJ tech KNEW the high-current power wasn't being supplied, and didn't recommend fixing that before buying more modules to supply extra power.
Chris | |
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DJ ISO6 and Ag Leader planter clutches
