Can the EX4 use the EX4100 as its remote backup?

Or do I have to buy another EX4?

Hi there,

You can do a remote backup from the EX4 to the 4100, this should not be an issue.

Thanks for responding. We already ordered an EX4 this morning. We needed redundancy and I couldn’t wait indefinitely for a response. Neither the manual nor the website seem to state the compatibility between products so I went with the safe bet, old hardware.