AML M2500 Decoder User Manual

Page 40

SERIAL PORT

The RS-232C serial port transmits and receives data from both the host

computer and the terminal. The reader's serial port parameters must

match those of the terminal.

0) DATA TYPE: 0=ASCII 1=PC SCAN CODES

Sets the data format to ASCII characters. Use this

mode with standard ASCII terminals.

Sets the data format to PC SCAN CODES. Use this

mode only if you are using a "PC-Terminal" type

terminal. This type of terminal transmits PC SCAN

CODES to the host computer. Some operating

systems that use these types of terminals are: PC-

MOS, CONCURRENT DOS, etc.

1) DUPLEX MODE: 0=FULL 1=HALF

Selects FULL DUPLEX mode. In FULL DUPLEX, the

reader transmits data out the HOST port only. The

host computer receives the data and echoes it back

to the terminal.

Selects HALF DUPLEX mode. In HALF DUPLEX,

the readers transmits data out both the HOST and

TERMINAL ports at the same time.

2) INTERCHARACTER DELAY (00 - 99 msec)

This option specifies the amount of delay to be inserted

after transmitting each character. The delay period is

programmable from 00 to 99 msec. This feature allows the

user to slow the data rate down for host computers that

require more time to process each character.

3) DAISY CHAIN (ON/OFF, ID)

This option specifies the Daisy Chain mode of operation.

Enables Daisy Chain Controller operation. When

enabled, the unit polls and accepts data from each

M2500 that is in the daisy chain.

OFF*

Disables all Daisy Chain operations. M2500

operates as a stand alone unit.

Designates the unique daisy chain ID. Accepts ID

values from the Full ASCII Chart in the range of

"SP" to "DEL" (ASCII 32-127).