RCU Forums - View Single Post - Jeti CB 100 Mini Redundant System w/Telemetry, Dual Rx/Bat, Wireless Sw. (3 oz./75g)
Old 07-21-2017, 06:40 PM
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gooseF22
 
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Originally Posted by F1 Rocket
When connecting devices to the RX servo ports we add a lead from one of the CB's servo ports to the RX. We do the same when connecting a Cortex Pro.This supplies the additional power needed and is approved by Jeti.
Guys, IMO this is extremely important. Especially on the PRO IMO... because 2 diodes in parallel do not carry double the current. ALL the current tends to do through 1 diode... So if you have just RX1 and RX2 providing power to the PRO and 2 R3's, you could exceed the power capability of the ports.. ITs estimated that one port can hold 200mA, but we really don't know, thats just what its spec to.. so Logic tells you that Rx1 and 2 could do 400 mA, but thats not the case.. Because the Pro has a common bus, all the power would tend to travel through one of the ports until it fails, then the other.

If the Pro exceeds that current capability of one port, PLUS, the current of both Receivers all riding on one port. This is why the jumper is so important.. It will carry all the load because the voltage is higher, and it can do it with no problem.

Cut the signal lead and put those jumper wires in there..I wish I could put out an Air Directive for this..

VK, you need to check each RX port of the CB200 to make sure they function now, separately.. Just unplug RX2, and the jumper( if installed), and see if RX 1 is powered (rx 2 will be powered too, but won't be talking to the CB200. Then switch ports, and it should relink.. If it doesn't, take out the Pro and set it up the old way and trouble shoot from there. It will either work or it won't.. Wayne found this out, and could elaborate

Last edited by gooseF22; 07-21-2017 at 06:49 PM.