Rs-232; Figure 9: An Example Of Rs-232 Connection - CipherLab 5000 Hardware Manual

Introducing 5000/5100:
Features

1.3.11 RS-232

A standard RS-232 port is available on the JP3. Unlike the "external reader port",
these signals are true RS-232C compliant. With proper cabling, shielding, wiring and
so on, it is able to communicate to another device up to 50 feet (approx. 15 meters)
away.
This port is mainly used to communicate to the host computer, i.e. being a
stand-alone unit or master terminal under multi-station systems. The final use, of
course, is not limited.
The illustration below shows a typical topology of networking a standalone terminal to
a host through RS-232 interface.

Figure 9: An example of RS-232 connection

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