Newland NLS-EM1395-LD Скачать руководство пользователя страница 20

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Good Read LED

The EM1395-LD provides a pin (LED, PIN 10) on the host interface connector that can be used by an

external driver circuit to drive an LED to indicate 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 drive an LED, so an LED driver circuit is needed.

The following Good Read LED driver circuit is provided for reference.

2N3904

R1 1K

LED

10K

VDD

Содержание NLS-EM1395-LD

Страница 1: ...NLS EM1395 LD OEM Scan Engine Integration Guide...

Страница 2: ...unction 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...

Страница 3: ...Revision History Version Description Date V1 0 0 Initial release May 13 2014...

Страница 4: ......

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

Страница 6: ...erfaces 9 Host Interface Connector 9 Dimensions of the Host Interface Connector unit mm 9 FFC Cable unit mm 10 Communication Interface 11 Trigger 11 Beeper 13 Good Read LED 14 Chapter 5 Development To...

Страница 7: ...Codabar Code 128 Code 93 ITF 6 ITF 14 Interleaved 2 of 5 Industrial 2 of 5 Standard 2 of 5 Matrix 2 of 5 GS1 Databar Code 39 Code 11 MSI Plessey Plessey Illumination The EM1395 LD has a red LED 622 n...

Страница 8: ...onment The following environmental requirements should be met to ensure good performance of the EM1395 LD Operating Temperature 20 60 Operating Temperature 40 85 Humidity 5 95 non condensing Thermal C...

Страница 9: ...de 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 the w...

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: ...ent lights using 50 60Hz AC power However high frequency pulsed light can result in performance degradation Eye Safety The EM1395 LD has no lasers It uses a red LED to create aiming and illumination b...

Страница 12: ...below show the mechanical mounting dimensions for the EM1395 LD The structural design should leave some space between components and reserve enough room for the FFC cable Front View unit mm Top View...

Страница 13: ...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 EM1395 LD itself does not prov...

Страница 14: ...ximum Unit VDD Voltage Drain Drain 3 0 3 3 3 6 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 V...

Страница 15: ...erential 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 For the info...

Страница 16: ...of the Host Interface Connector unit mm The engine uses a 12 pin ZIF socket bottom contact model 10051922 1210ELF 10051922 1210EHLF manufactured by FCI The socket can be connected to a host device wit...

Страница 17: ...Based on USB connection the engine s transmission is simulated as USB keyboard input It works on a Plug and Play basis and no driver is required USB COM Port Emulation The USB port on the host device...

Страница 18: ...st If the trigger is released during a scan attempt the EM1395 LD immediately stops decoding Next decode session does not happen until the EM1395 LD receives active trigger signal driving the nTrig pi...

Страница 19: ...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 20: ...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 21: ...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 EM1395 LD can be connected to the EVK via a 12 pin...

Страница 22: ...wland id com WEB www newland id com Tech Support tech support newland id com Newland North America Inc Address 46559 Fremont Blvd Fremont CA 94538 USA TEL 510 490 3888 Fax 510 490 3887 Email info newl...