Home  Support FAQ Difference Difference between the Serial to Ethernet Converter and Ethernet Modem |
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Serial-Ethernet Converter Functionality:
Comparing Modem to COM Port Versions
The term "Converter" is derived from the Latin convertere meaning "to transform". In the computer engineering context it generally refers to devices used to convert or transform signals or transmission protocols.
Serial to Ethernet Converters
Serial
to Ethernet converters such as the ipEther232serve to transfer serial (RS232/RS485 interface) data via Ethernet for various serial applications.
Serial to Ethernet converters are avaliable in different versions with different functions (strengths) in order to achieve the best possible connections of serial interfaces via Ethernet.
Funcionality comparisonCompare the different functionality of ipEther232 (COM port version) to that of ipEther.Modem (modem version) below:
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| Driver-based serial to Ethernet converter: ipEther232 |
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| Only one ipEther232 is required. At the Windows PC, a virtual COM port driver or the programmable UDP socket interface is used.
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| Compatibility Mode: |
UDP-based, secure data transfer communication enabling reliable data communication, however, requiring extra time for data communication. Suitable for time-uncritical logs/data.
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| Transparent UDP Mode: |
Transparent UDP mode is generally used whenever time becomes an important criterion for data transmission.
This mode enables opening up as many as four data links at a time (enabling more than one PC). Thus redundant installations / data links are made possible.
In the manual, you will also find function parameters, the communication diagram, and a sample program. The latter is also available and applicable as C# source code.
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UDP Mode |
| Driver-independent serial to Ethernet converter: ipEther232.Modem |
Only two ipEther232.Modem units are required to add serial interfaces to the network, thus making the Ethernet Modem a driverless, operating system-independent solution.
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| Dial up mode: |
In dial up mode the ipEther232.Modem is made compatible with existing modem applications.
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| Leased line mode: |
Long serial connections should be performed in leased line mode via Ethernet. This mode is operating system-independent and does not require drivers.
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The network modem ipEther232.Modem supports
the Hayes command set. Therefore, it is an ideal replacement for conventional modem connections (see figure). Such a replacement is especially sensible if you have an extra network connection in addition to your telephone line. The configuration and operation of the network modem can be performed completely operating system-independently.
(Conventional dial up (telephone modem) connection)
It is important to note that the serial protocol used is a point-to-point protocol.
The Ethernet protocol, in contrast, is a block-oriented multipoint protocol.
That is why serial to Ethernet converters, however rarely, may encounter some restrictions with respect to communication.
Further specification >>
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