AML M3000 Podręcznik Użytkownika Pobierz pdf (Strona 20)

American Microsystems, Ltd. M5000 Portable Data Terminal

You can use one of two ways to access Communication Setup. From the Main Menu arrow down

to Communications, then choose Comm. Setup. Another method you can use to access

Communication Setup (Comm. Setup) from the Main Menu, is simply arrow down to Setup, and

choose Comm. Setup.

Protocol

—

select one of the following options:

None

—

protocol is not used.

Xmodem

—

enables the xmodem protocol that is commonly used to ensure data integrity when

communicating via telephone lines. The M5000 PDT automatically detects and supports

xmodem CRC and xmodem checksum. Default is set the Xmodem.

Flow Control

—

is used when receiving serial data and prevents the serial buffer from

overflowing. Select one of the following options:

None

—

flow control is not used.

Xon/xoff

—

enables Xon/xoff software flow control. When receiving serial data, the M5000 PDT

transmits a xoff

(Ctrl S) character to stop incoming serial data and prevents the serial buffer from

overflowing. When the M5000 PDT is ready to accept more data, a xon

(Ctrl Q) character is

transmitted.

RTS/CTS—enables RTS/CTS hardware flow control. When receiving serial data, the M5000

PDT drops the RTS line to stop incoming serial data and prevents the serial buffer from

overflowing. When the M5000 PDT is ready to accept more data, the RTS is again inserted.

Default is set to RTS/CTS.

Baud Rate

—

sets the data transmission speed for the serial port on the M5000 PDT and must

match the baud rate of the host computer’s serial interface. Select one of the following options:

300 2400 19200

600 4800 38400

1200 9600 (default) 57600

Parity

—

the M5000 PDT parity setting must match the parity setting of the host computer’s

serial interface and is used to provide a self-checking feature in your data transmission method.

Select one of the following options:

None (default)

Odd

Even

Data Bits

—

sets the character length (number of data bits per character) for the serial data

and must match the data bits setting of the host computer’s serial interface. Select either 7 or 8

(default).

Stop Bits

—

defines the number of stop bits used during serial communication, choose 1

(default) or 2 stop bits.

Char Delay (Character Delay)

—

specifies the amount of delay inserted between

each transmitted character. This option slows the transmission rate to compensate for slow host

computers that require time to process each character. Programmable range is 0ms to 99ms.

(Default is one.)

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 37 38

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