TransAct Technologies ITHERM 280 - Manual (Page 52)

Setup Procedures iTherm ® 280 Programmer’s Guide
Page 50 Rev C 28-07764
Ethernet Virtual Serial driver
A VSerial driver is a low level device driver, which appears to Windows and your
application as a serial com port. However, all of the data sent to and received from the
serial com port actually comes from the Ethernet printer.
Figure 8 Ethernet Virtual Serial Driver
When to use the Ethernet Virtual Serial driver:
An Ethernet Virtual Serial Driver is needed whenever data is to be sent to or received
from the printer using the Ethernet interface, but needs to appear to the application as a
serial port.
When not to use the Ethernet Virtual Serial driver:
An Ethernet Virtual Serial driver is not needed if the application is able to directly interact
with an Ethernet printer using TCP/IP Protocol.
Window’s Operating System
User
Application
Driver
Virtual Serial
Link
Virtual
Driver
Ethernet
Printer
With Print
Server