Hi,
In order to get the repeater from the other page, all you need to add is the post id for the same.
such as
$rows = get_field('slider_image',$other_page);
Check out the following gist. It should help you out in getting the random rows from a repeater
https://gist.github.com/mwangepatrick/c0fec6c11d44b8e620ba
