Compatible Systems 1250I Instrukcja Użytkownika Pobierz pdf (Strona 6)

Industrial USB >

12-6

www.moxa.com

[email protected]

Introduction to USB Connectivity

Industrial USB

Scenario 1 Scenario 2

Scenario 3

(D1)

COM10-COM11

COM12-COM13

(D2)

Serial transmission 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. This 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,

forcing the user to reconfigure the COM names manually from within

the application.

Moxa’s UPort® 1200/1400/1600 USB-to-serial hubs have an advanced

feature that allows them to use fixed COM names. When the user

enables the “COM Preserver™” function, the COM names “go with” the

UPort® device. In fact, Moxa’s drivers can even create the same COM

port names on a different host PC. With 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 go with the

UPort® 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.

COM port assignment is maintained

across different PCs

COM port assignment is maintained

across different USB ports

Moxa’s UPort® 1000 series, and UPort® 2000 series of products

provide a unique fixed-base COM function that allows users to set

a specific initial COM port number. Regardless of which UPort® is

plugged into the host, the COM port numbers for the UPort®’s serial

ports will be numbered sequentially starting with the initial COM port

number.

For example, assume that you have set COM10 as the first COM

number that will be assigned. If UPort® D1 is plugged into your

computer first, your computer will assign COM10 and COM11 to the

UPort®’s serial ports. When UPort® D2 is plugged in, the computer

will assign COM numbers COM12 and COM13.

Moxa’s 20-plus years of experience in serial board design is now built

into a new top performance CPU called MOXA ART. This chip equips

the UPort® converters with USB 2.0 (Hi-Speed 480 Mbps), a 128-byte

FIFO, on-chip hardware and software flow control, and burst data

mode, making Moxa’s UPort® converters perform far better than the

competition.

Top Serial Performance

Patented COM Preserver

Fixed-base COM Mode

1 2 3 4 5 6 7 8 9 10 11 ... 25 26

Komentarze do niniejszej Instrukcji

Brak uwag

Compatible Systems 1250I Instrukcja Użytkownika Strona 6

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Networking Compatible Systems 1250I