Hall Research VSA-31-SP-W - Manual (Page 7)

A / V Switch-Cat
TM
5
3.0 Installation
In a typical installation, the User interface unit is located on a wall or
panel and is wired to the connector panel via 1 CAT5 cable. The
connector panel is wired to the receiver unit via 2 CAT5 cables.
The user interface and connector panels qualify as low-voltage class 2
devices and do not require a J-box in the wall. In fact it does not even
need a power supply to be connected to it, as it draws power via the signal
connection to the remote unit. However, in most instances it is easier to
use standard 2-gang and 4-gang electrical boxes in order to attach the
faceplates to the mounting surface or structure.
Please contact Hall Research or your desired electrical supply house for
purchasing the J-box. These are generally inexpensive units.