It isn't quite that simple.
The Hoppers take their feed from a coax that goes back to the node (I assume you got a dual node since you have 2 Hoppers).
The Joeys have their own feed that also goes back to the node BUT the Joey feed can be split to send to different Joeys.
In other words... a Hopper MUST have a feed that goes back to the specific port on a node. A Joey might have a feed that goes back to its specific port on a node BUT if you have another Joey that Joey is probably split from that same coax.
So... it all depends on how the Joeys are chained together since you said you have 3 Joeys.
If you swap a Hopper for a Hopper or a Joey for a Joey, no problem.
But if you swap a Hopper for a Joey, then you might have a lot of rewiring to do since that Hopper line currently goes back to the node Hopper port and would have to be changed to connect somehow to the Joey port.
Similarly, the current Joey line would also have to be moved to connect to the Hopper port instead of the Joey port on the node.
The problem comes in because you have multiple Joeys... and if they are split off from each other at the node it will be possible for you to semi-easily figure things out and change it up... but if the Joeys are split at some other point in your house, swapping the connections at the node would break your other Joeys.
If that doesn't make sense, check the FAQ and other threads here that have sample wiring diagrams and you'll see what I mean.
There are also other ways (including taps) that your Joeys could be connected... so specific answers would require knowledge of how your setup is wired before anyone could give a definitive answer. Basically it could either be really easy or really difficult.
The Hoppers take their feed from a coax that goes back to the node (I assume you got a dual node since you have 2 Hoppers).
The Joeys have their own feed that also goes back to the node BUT the Joey feed can be split to send to different Joeys.
In other words... a Hopper MUST have a feed that goes back to the specific port on a node. A Joey might have a feed that goes back to its specific port on a node BUT if you have another Joey that Joey is probably split from that same coax.
So... it all depends on how the Joeys are chained together since you said you have 3 Joeys.
If you swap a Hopper for a Hopper or a Joey for a Joey, no problem.
But if you swap a Hopper for a Joey, then you might have a lot of rewiring to do since that Hopper line currently goes back to the node Hopper port and would have to be changed to connect somehow to the Joey port.
Similarly, the current Joey line would also have to be moved to connect to the Hopper port instead of the Joey port on the node.
The problem comes in because you have multiple Joeys... and if they are split off from each other at the node it will be possible for you to semi-easily figure things out and change it up... but if the Joeys are split at some other point in your house, swapping the connections at the node would break your other Joeys.
If that doesn't make sense, check the FAQ and other threads here that have sample wiring diagrams and you'll see what I mean.
There are also other ways (including taps) that your Joeys could be connected... so specific answers would require knowledge of how your setup is wired before anyone could give a definitive answer. Basically it could either be really easy or really difficult.
