User Manual

14 Proprietary and Confidential
The back panel
Introduction
The back panel
The jacks and ports that are used to connect other devices to the SOMAport
140 are located on the back panel. A jack connects telephone equipment to the
SOMAport 140, whereas a port connects computer equipment. The on/off
switch is also located on the back panel. The locations of the connectors and
switches are shown below.
The connectors and switches on the back panel have the following functions.
# Part Description
1 Serial
(RS-232) port
This port has a 9-pin D-style connector. The port can be used to
connect an older PC—one that doesn’t have an Ethernet port or
universal serial bus (USB) port—with a crossover (null modem)
cable.
2-5 Telephone
(RJ-11) jacks
These jacks provide telephone services. They are used to
connect phones, fax machines, or dial-up modems to the
SOMAport 140. You will have 2 or 4 jacks, depending on the
model you purchased.
6 Power jack The power supply plugs into this jack.