Examples
AXIS 2490 User’s Manual
36
Surveillance and Alarm Systems in Buildings
In places such as lifts and toilets, there might be a push button to activate a distress signal
in case of an emergency. The button would be linked directly to the network via a serial
server.
Barcode Readers
Barcodes and barcode readers can be found in many different locations, such as shops and
factories. In production plants, different parts could have a barcode which would show
where it belongs. In the case of car production, it would be possible to see who has ordered
a particular car and what it will look like when finished. Whether the car should be fitted
with e.g. airbags, the car’s color etc, is all information that could be contained in the
barcode.
If the barcode reader is connected to a network via an AXIS 2490 Serial Server, the
individual car seller will have access to information about possible delays and delivery
dates. The information about a specific car ordered by a customer will be accessible at all
stages during production.
Remote Troubleshooting
Suppose a device malfunctions and the manufacturer and/or service technicians are
located on the other side of the world. Via the AXIS 2490 Serial Server it would be possible
to connect the device’s serial port to the Internet, where it will then be available to service
engineers, who will be able to find out what is wrong with the device and recommend a
course of action.
Tunnel Communication
Any two devices that can connect to each other via a serial cable can also be connected via
two Serial Servers over a network. Assuming the two servers have the addresses 1.2.3.1
and 1.2.3.2, the following settings are then needed:
1.2.3.1 uses
Connect To
: 1.2.3.2 and uses the
Allowed IP Address:
1.2.3.2.
1.2.3.2 in turn uses
Connect To
: 1.2.3.1 and
Allowed IP Address
: 1.2.3.1.
Both devices must use the same
Listener Port
or it must be specified in the
Connect To
parameter, e.g. Connect To: 1.2.3.1:4000.
Telnet Options
must have the same value on both units;
Yes
if RFC2217 functions are
required.
Summary of Contents for 2490
Page 1: ...User s Manual ...
