According to the back of the shrinkwrapped box:

" With a pre-terminated single-jack design uniquely suited to star topologies.,
the PhoneNET StarConnector maximizes the benefits and savings of using
installed telephone cabling for your AppleTalk network.
The PhoneNET StarConnector 10-Pack is the affordable solution for star networks of ten or more nodes. "

" We developed the PhoneNET Star Connector especially for telephone star wiring plans and
for use with our PhoneNET StarConnector network hub.
StarConnectors are both cost-effective and convenient to use:
just plug the pre-terminated PhoneNET StarConnector into the back of your MacINtosh or printer
and attach to the network wire pair in a wall jack.
It is as easy as plugging in a telephone.
With StarConnectors, you can add to or reconfigure even the largest networks from the telephone closet,
without making any wiring changes at the station.
Star topologies put you in charge, and give you the flexibility you need to upgrade, expand, or reconfigure
your network as your needs require. "