Newland NLS-EM3090 Integration Manual Download Page 20

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Beeper

The EM3090 provides a pin (BUZ, 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,

good read or operation error. The PWM output is not strong enough to drive a beeper, so a beeper driver

circuit is needed.

The following beeper driver circuit is provided for reference.

Summary of Contents for NLS-EM3090

Page 1: ...NLS EM3090 OEM Scan Engine Integration Guide...

Page 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...

Page 3: ...Revision History Version Description Date V1 0 0 Initial release August 14 2015...

Page 4: ......

Page 5: ...Thermal Considerations 2 Installation Orientation 3 Optics 3 Window Placement 3 Window Material and Color 4 Scratch Resistance and Coating 4 Window Size 4 Ambient Light 5 Eye Safety 5 Mounting 5 Fron...

Page 6: ...Connector 10 Dimensions of the Host Interface Connector 11 FFC Cable 11 Cable Connection 12 Communication Interfaces 12 Control Interfaces 13 Reset 13 Trigger 13 Beeper 14 Good Read LED 15 Chapter 5 D...

Page 7: ...w finder that produces a bar shaped aiming pattern to help the user to easily position the target barcode within the engine s field of view to increase scan efficiency The aiming pattern can be turned...

Page 8: ...onment The following environmental requirements should be met to ensure good performance of the EM3090 Operating Temperature 20 to 55 Storage Temperature 40 to 80 Humidity 5 95 non condensing Thermal...

Page 9: ...tance is measured from the front of the engine housing to the furthest surface of the window Avoid unwanted reflections and use thin material for window so as to reach better reading performance As sh...

Page 10: ...with spectral transmittance of illumination and aiming beams over 90 and haze less than 1 Whether to use an anti reflection coating or not depends on the material and application needs Scratch Resist...

Page 11: ...ting has been done to demonstrate that the engine is safe for its intended application under normal usage conditions However the user should avoid looking into the beam Mounting The illustrations belo...

Page 12: ...mm Left View unit mm Bottom View unit mm The bottom view shows the mounting screw specification M2 machine screw with an internal diameter of 2mm Note that the part of mounting screws into the engine...

Page 13: ...y short interval 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 2 seconds Ripple Noise The...

Page 14: ...8 Current Ta 25 VCC 3 3V Parameter Average Maximum Unit IOP 190 mA IStandby 7 mA ILow power 5 uA...

Page 15: ...put Output USB D differential data signal 7 D Input Output USB D differential data signal 8 GND Power supply ground 9 BUZ Output Beeper output For the information of external beeper driver circuit see...

Page 16: ...s host interface connector is a 12 pin ZIF socket bottom contact which can be used to connect a host device e g software development board EVK with an FFC cable The following figures show the locatio...

Page 17: ...be used to connect the EM3090 to a host device The cable design must be consistent with the following specifications shown below Use reinforcement material for the connectors on the cable and reduce...

Page 18: ...m architectures For those requiring RS 232 a TTL 232 to RS 232 conversion circuit is needed USB HID KBW Based on USB connection the engine s transmission is simulated as USB keyboard input It works on...

Page 19: ...r low for a specified time period causes the EM3090 to start a scan and decode session The time period varies from one scan mode to another Anti shake mechanism is used in level trigger mode For this...

Page 20: ...output to an external driver circuit for generating audible feedback to the user to indicate statuses like power up good read or operation error The PWM output is not strong enough to drive a beeper s...

Page 21: ...LED to indicate a good read status When a good read occurs the signal from the LED pin turns from a low level into alternation of high and low levels and a while later back to a low level This Good Re...

Page 22: ...ircuit LED LED driver circuit trigger reset buttons TTL 232 to RS 232 converter TTL 232 to USB converter RS 232 USB interfaces etc The EM3090 can be connected to the EVK via a 12 pin FFC cable type 1...

Page 23: ...s 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...