Intermec Sabre 1552 Scanner System Manual page 23

In an RS-232 configuration, connect your interface cable between the base (1) and
the host system (2). You also need to use an external power supply (3). Contact
your Intermec sales representative for more information on ordering power supplies
or RS-232 cables, including "Y" extension and mouse power pickup cables to
mount the base for best RF coverage. Cable, keyboard, and terminal may vary.
RS-232 Interface Example
Base
1
3. Turn on the power to the host system. Verify that the base is on; the green LED is
blinking. (The base does not have a beeper.)
2
2
3
Power
supply
1
Getting Started
Terminal
(host system)
1-9