Newland NLS-EM1399-LD Скачать руководство пользователя страница 21

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Beeper

The EM1399-LD provides a pin (Buzz, PIN 9) on the host interface connector that provides a PWM output

to an external driver circuit for generating audible feedback to the user to indicate statuses like power up

or good decode. The PWM output is not strong enough to drive a beeper, thus a beeper driver circuit is

needed.

The following beeper driver circuit is provided for reference.

2N3904

AS903Q

LS1

1
2

R5
10R

R6 1K

R7
10K

VDD

BUZZ

BAT760

Содержание NLS-EM1399-LD

Страница 1: ...NLS EM1399 LD OEM Scan Engine Integration Guide...

Страница 2: ...tion or design at any time without notice The information contained herein is subject to change without prior notice The products depicted in this manual may include software copyrighted by Fujian New...

Страница 3: ...Revision History Version Description Date V1 0 0 Initial release April 21 2017...

Страница 4: ......

Страница 5: ...s 2 Installation Orientation 3 Optics 3 Window Placement 3 Window Material and Color 4 Scratch Resistance and Coating 4 Window Size 5 Ambient Light 6 Eye Safety 6 Mounting 7 Front View unit mm 7 Left...

Страница 6: ...faces 11 Host Interface Connector 11 Dimensions of the Host Interface Connector unit mm 12 FFC Cable unit mm 12 Communication Interface 13 Trigger 14 Beeper 15 Good Read LED 16 Chapter 5 Development T...

Страница 7: ...d delivers superior performance and solid reliability with low power consumption The EM1399 LD supports EAN 13 EAN 8 UPC A UPC E ISSN ISBN Codabar Code 128 Code 93 ITF 6 ITF 14 Interleaved 2 of 5 Indu...

Страница 8: ...d Dust and other external contaminants will eventually degrade the engine s performance Thermal Considerations Electronic components in the EM1399 LD will generate heat during the course of their oper...

Страница 9: ...degrade the reading performance The window should be mounted close to the front of the engine parallel The maximum distance is measured from the front of the engine housing to the farthest surface of...

Страница 10: ...ectral transmission lowest haze level and homogeneous refractive index It is suggested to use PMMA or optical glass with spectral transmittance over 90 and haze less than 1 Whether to use an anti refl...

Страница 11: ...5 Window Size The window must not block the field of view and should be sized to accommodate the illumination envelope shown below Horizontal...

Страница 12: ...er However high frequency pulsed light can result in performance degradation Eye Safety The EM1399 LD has no lasers It uses a red LED to create aiming and illumination beams The LED is bright but test...

Страница 13: ...ustrations below show the mechanical mounting dimensions for the EM1399 LD The structural design should leave some space between components and reserve enough room for the FFC cable Front View unit mm...

Страница 14: ...8 Bottom View unit mm...

Страница 15: ...al between power ons may lead to unstable performance of the engine Do not resupply the power immediately after cutting it off The minimum interval must exceed 500ms The EM1399 LD itself does not prov...

Страница 16: ...t VDD Voltage Drain Drain 3 15 3 3 3 45 V VIH High Level Input Voltage 0 7 VDD V VIL Low Level Input Voltage 0 2 VDD V VOH High Level Output Voltage 0 9 VDD V VOL Low Level Output Voltage 0 1 VDD V Op...

Страница 17: ...USB_D differential data signal 7 USB_D I O USB_D differential data signal 8 PWRDWN O Low Power State signal output Active high indicates that the engine is in low power state 9 Buzz O Beeper output Fo...

Страница 18: ...to a host device with an FFC cable FFC Cable unit mm A 12 pin FFC cable can be used to connect the EM1399 LD to a host device The cable design must be consistent with the specifications shown below U...

Страница 19: ...COM Port Emulation The USB port on the host device is emulated as a serial port with the same data transmission and configuration as a real serial port A driver is required USB DataPipe This protocol...

Страница 20: ...If the trigger is released during a scan attempt the EM1399 LD immediately stops decoding Next decode session does not happen until the EM1399 LD receives active trigger signal driving the nTrig pin...

Страница 21: ...iver circuit for generating audible feedback to the user to indicate statuses like power up or good decode The PWM output is not strong enough to drive a beeper thus a beeper driver circuit is needed...

Страница 22: ...dicate a Good Read status When a good read occurs the LED pin produces a high level output for about 300ms then the signal is back to a low level This Good Read LED output is not strong enough to driv...

Страница 23: ...eeper driver circuit LED LED driver circuit trigger reset buttons TTL 232 to RS 232 converter TTL 232 to USB converter RS 232 USB interfaces etc The EM1399 LD can be connected to the EVK via a 12 pin...

Страница 24: ...TEL 31 0 345 87 00 33 FAX 31 0 345 87 00 39 Email info newland id com WEB www newland id com Tech Support tech support newland id com Newland North America Inc Address 46559 Fremont Blvd Fremont CA 9...

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