ART Pro Audio XPatch - Three Channel XLR Balanced Patch Bay - Manual (Page 6)

USING AN XLR PATCH BAY:
Although the ART XPatch, like all patch bays, is
conceptually a simple device, it is worth a small
investment in time to familiarize yourself with a few of
the many ways in which it can be used.
The most basic use for the XPatch is to extend
connections from the back of audio devices that are
hard to reach using XLR cables to the back of the patch
bay. From the front, you can then patch these
connections to any place you want. Now you won't have
to crawl around behind your gear to access the
appropriate jack.