Serial interface control – Hand Held Products 3080 User Manual

Page 39

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Programming the Scanner

3-25

Serial Interface Control

Baud Rate & Data Frame Setting ♦

PROGRAM

END(Exit)

Family Code Selection

Parameter Selection

Option Code

Handshaking Protocol

None (free running mode)
RTS/CTS (hardware handshaking)
ACK/NAK (software handshaking)
Xon/Xoff (software handshaking)

0
1
2
3

Baud Rate (BPS)

38.4K BPS
19.2K BPS
9600 BPS
4800 BPS

2400 BPS
1200 BPS
600 BPS
300 BPS

0
1
2
3

4
5
6
7

Data Frame

8, None, 1
8, Odd, 1
8, Even, 1
8, Space, 1
8, Mark, 1
8, None, 2
7, Odd, 1
7, Even, 1

7, Space, 1
7, Mark, 1
7, None, 2
7, Odd, 2
7, Even, 2
7, Space, 2
7, Mark, 2

0
1
2
3
4
5
6
7

8
9

A
B
C
D
E

Time Out Control

None
200 mseconds
500 mseconds

1 second
2 seconds
5 seconds
User defined value (seconds)

0
1
2

3
4
5

6, (2 digits)

FACTORY DEFAULT

When the RTS/CTS Hardware Handshaking option is selected, the RTS (request to send) and CTS (clear to send) signals will be issued before normal data
communication. This option is very helpful to ensure the reliability of data communication.

When the ACK/NAK Software Handshaking option is selected, the scanner waits for an ACK (acknowledge) or NAK (not acknowledge) from the host computer
after each data transmission. If the NAK is received, the scanner will re-send the data until receiving ACK.

The Time Out Control is a pre-defined delay time for the scanner to wait for handshaking, acknowledgment, or non-acknowledgment from the host computer.

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