Symbol LS 3020 Mode d'emploi

LS 3020-I037A Special Operating Instructions

(70-04014-37)

Revision A: March 1994

Special Operating

Instructions



LS 3020-I037A Special Operating Instructions

(70-04014-37)

Revision A: March 1994

2-4

This version of the software enables the scan-

ner to verify that the Motorola terminal is

ready before attempting a decode.

Defaults

Baud Rate: 2400

Stop Bits: 1

Laser Enable Mode: Disable

Laser Enable Mode

The Laser Enable Mode parameter indicates

whether the LS 3020 must establish communi-

cation with the Motorola terminal prior to at-

tempting a decode. If this parameter is

enabled, the following sequence occurs when

the trigger is pulled:

• The scanner sends an ENQ (05H) to

the terminal.

• ThedecodeLEDﬂashestoindicatethe

scanner is waiting for acknowledg-

ment from the terminal. The LED

stops ﬂashing when ACK (06H) or

NAK (15H) is received, or the trigger

is released.

• If an ACK is received, the unit at-

tempts a decode.

• If a NAK is received, the unit issues

four short low beeps.

LS 3020-I037A Special Operating Instructions

(70-04014-37)

Revision A: March 1994

3-4

Aiming LEDs andTrigger Posi-

tions

The LS 3020-I037A does not generate an aim-

ing LED.

An aiming LED is provided for the

LS 3020LR-I037 or LS 3020ALR-H037 when

the trigger is pulled. These scanners support

a two-position trigger to allow the user to aim

prior to activating the motor.

Whenthetriggerispulledintheﬁrstposition,

the aiming LED is generated. If the trigger is

not pulled to the second position, the aiming

LED turns off after approximately two sec-

onds.

Triggering and Laser Enable

Mode

If the Laser Enable Mode is disabled, the scan-

ning motor is activated as soon as the trigger

is pulled to the second position.

If Laser Enable Mode is enabled and the trig-

ger is not pulled to the second position, the

aiming LED remains on for two seconds, and

the unit does not transmit an ENQ. If the trig-

ger is pulled to the second position, the unit

transmits the ENQ to the terminal.

• If an ACK is received, the unit at-

tempts a decode.

• If a NAK is received, the aiming LED

is turned off, and the unit issues four

short low beeps.

• If the unit does not receive anACK or

NAK, the aiming LED remains on for

two seconds. The decode LED contin-

ues to ﬂash until anACK or NAK is re-

ceived.

LS 3020-I037A Special Operating Instructions

(70-04014-37)

Revision A: March 1994

4-4

Laser Enable Mode

To enable or disable this parameter:

1. Scan the

ENABLE LASER MODE

bar

code.

2. Scan either

ENABLE

DISABLE

3. Scan

ENTER

ENABLE LASER MODE

ENABLE

DISABLE

ENTER

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