Total Solutions for Industrial Device Networking
www.m o x a . c o m e - m a i l : i n f o @ m o x a . c o m
7-3
USB-to-Serial Hubs/Adaptors
7
Full range of port densities
MOXA’s 20 years of experience in serial board design is now
concentrated in MOXA’s new top performance serial data transmission
chip, called Turbo Serial Engine™. MOXA’s new technology CPU equips
UPort 1200/1400/1600 Series hubs with a 128-byte FIFO, on-chip
hardware and software flow control, and burst data mode. This makes
the UPort 1200/1400/1600 Series the top performing USB-to-serial
hub in the world.
User applications use names such as COM3 and COM4 to identify
COM ports. Unfortunately, most USB-to-serial products are unable to
use fixed COM names on the host PC, which means that the names of
the COM ports change when the USB-to-serial device is plugged into
a different USB port, either on the same or a different PC. In this case,
the user must trace the COM names manually from the application.
UPort 1200/1400/1600 USB-to-serial hubs have an important feature
that allows them to use fixed COM names. When the user enables this
“COM Preserver” function, the COM names follow the UPort device.
In fact, MOXA’s driver can even create the same COM port names on
a different host PC. By using this feature, you do not need to modify
application programs, or rebuild the entire project every time you
install a new operating system or upgrade the computer. Don’t worry
about moving the UPort from one USB hub to another, or even from
one computer to another. Once the COM preserver function is enabled,
the names of the USB-to-serial COM ports will follow the hub wherever
it is used.
Note that the COM preserver function is disabled by default. Users can
use the traditional method of enumerating COM ports, or enable the
COM preserver function to make use of this great new feature.
* Patent Pending
The typical way to use a device such as the UPort 1400/1610-8/1650-
8 is to place it on the desk near the laptop or desktop PC. However,
placing the UPort in this way wastes space, and due to the nature of
USB, makes it more likely that the connection between the PC and
UPort will get disconnected. The “magnet” solution introduced by
MOXA is simple, but innovative. The solution uses magnet accessories
that come with the product to attach the UPort to the host PC’s case.
Not only does this save space, but it also allows the user to fix the
position of the USB cable that attaches the UPort to the PC.
Original Setting:
COM3–COM6
Self Configure:
COM3–COM6
Intelligent COM Preserver
Scenario 1
COM Port assignment is maintained across different PCs
Original Setting:
COM3–COM6
Self Configured:
COM3–COM6
COM Port assignment is maintained across different USB
Ports
Top performance with 128-byte FIFO and on-chip H/W, S/W Flow Control
COM Preserver™ *
Scenario 2
Magnet accessories for attaching to a PC case
Serial Interface No. of Ports Model
RS-232
1 UPort 1110
4 UPort 1410
8 UPort 1610-8
16 UPort 1610-16
Serial Interface No. of Ports Model
RS-422/485
2 UPort 1130
RS-232/422/485
2 UPort 1250/1250I
4 UPort 1450/1450I
8 UPort 1650-8
16 UPort 1650-16
(66 pages)
(70 pages)
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