HP 24SII - Manual (Page 11)

The BayTech Model 24SII Data Exchange System (DES) is a high
performance peripheral sharing solution offering versatile and flexible
connectivity between computers and various peripheral devices.
Computers may share plotters, modems, and laser printers, as well as
access other computers to share data bases and transfer files. Cost
effectiveness is thus achieved through resource sharing among
multiple users.
Figure 1 below shows a Model 24SII DES with twenty-four ports
installed. This application shows eight local PCs, a remote PC using
the BayTech Tran-x LPT-460 high speed parallel/serial converter, and
a file server from a LAN sharing a plotter, HP LaserJet Series II
printer, HP Laserjet Series IIISI printer, and a BayTech BX2448 2400
bps modem.
Figure 1