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Trigger Circuit

The circuit below is used to provide the engine with a signal to trigger a scan and decode session.

Figure 5-3

Содержание EM20-85

Страница 1: ...SCANNING MADE SIMPLE EM20 85 OEM scan engine integration guide...

Страница 2: ...nction 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 N...

Страница 3: ...Revision History Version Description Date V1 0 0 Initial release April 6 2021 V1 0 1 Updated the 8 pin Box Connector section in Chapter 3 May 12 2021...

Страница 4: ......

Страница 5: ...tallation 5 Introduction 5 General Requirements 5 ESD 5 Dust and Dirt 5 Ambient Environment 5 Thermal Considerations 6 Optical Elements 6 Mounting 7 Housing Design 8 Optics 8 Window Placement 8 Window...

Страница 6: ...ectrical Specifications 21 Power Supply 21 DC Characteristics 21 Operating Voltage 21 Ripple Noise 22 I O Voltage 22 Operating Current 23 Timing Sequence 26 Power Up and Power Down Timing Sequence 26...

Страница 7: ...engineer should conduct an opto mechanical analysis before integration Chapter Description Chapter 1 Getting Started Gives a general description of the EM20 85 Chapter 2 Installation Describes how to...

Страница 8: ...ox connector specification Xiamen PinToPin Electronic Technology Co Ltd Model 1 0T 8AWB http www ptpxm com 12 pin FPC connector specification Shenzhen Mos Electronic Technology Co Ltd Model 0 5 18 12P...

Страница 9: ...iance Statement The EM20 85 complies with IEC 62471 2006 for LED safety The EM20 85 contains a CMOS image sensor and its lens four LEDs a 12 pin FPC connector a 8 pin box connector Figure 1 1 System B...

Страница 10: ...mination can be programmed On or Off Buzzer The EM20 85 provides a buzzer to indicate power on and good read statuses The Power On Beep and Good Read Beep can be programmed On or Off and the Good Read...

Страница 11: ...rface It is advised to take corresponding protection measures when integrating the engine The engine is shipped in ESD safe packaging Always exercise care when handling the engine outside its package...

Страница 12: ...ating the EM20 85 Avoid continuous use of LEDs for prolonged periods Reserve sufficient space for good air circulation in the design Avoid wrapping the EM20 85 with thermal insulation materials such a...

Страница 13: ...7 Mounting The illustrations below show the mechanical mounting dimensions unit mm for the EM20 85 Figure 2 1...

Страница 14: ...spots to appear in the captured image It is recommended to use baffles or matte finished dark internal housing colors Optics The EM20 85 uses a sophisticated optical system An improperly designed inte...

Страница 15: ...o attack by chemcials mechanical stresses and UV light Reasonably good impact resistance Chemically tempered glass Glass is a hard material which provides excellent scratch and abrasion resistance But...

Страница 16: ...nd covered wavelength is 400 780nm Scratch resistance coatings Scratch resistance coatings require a degree of greater than 5H in its hardness Coatings can be applied to plastic surfaces to increase t...

Страница 17: ...11 Window Size The window must not block the field of view and should be sized to accommodate the FOV envelopes shown below Horizontal Figure 2 3 Vertical Figure 2 4...

Страница 18: ...t the Newland website or contact your dealer Figure 2 5 Ambient Light The EM20 85 shows better performance with ambient light However high frequency pulsed light can result in performance degradation...

Страница 19: ...onsists of a 8 pin box connector and a 12 pin FPC connector 8 pin box connector can be used as RS 232 interface or USB interface 12 pin FPC connector can be used as TTL 232 interface or USB interface...

Страница 20: ...8 TTL232_TX O High Level TTL level 232 transmit data 9 TTL232_RX I High Level TTL level 232 receive data 10 GND Power Supply Power supply ground 11 EXT_VCC Power Supply 5V power supply input 12 NC 8 p...

Страница 21: ...e good read status The EXT_DSF pin produces a high output default duration 20ms user programmable when a good read occurs To learn how to program these parameters please see the EM20 85 user guide For...

Страница 22: ...mm The EM20 85 is equipped with a 12 pin FPC connector and a 8 pin box connector 12 pin FPC Connector The 12 pin FPC connector on the EM20 85 is supplied by Shenzhen Mos Electronic Technology Co Ltd...

Страница 23: ...17 8 pin Box Connector The 8 pin FPC connector on the EM20 85 is supplied by Xiamen PinToPin Electronic Technology Co Ltd Model No 1 0T 8AWB Figure 3 3...

Страница 24: ...18 12 pin FPC Cable A 12 pin FPC cable can be used to connect the engine s 12 pin FPC connector to a host device Figure 3 4...

Страница 25: ...19 Dedicated Cable for 8 pin Box Connector The dedicated cable can be used to connect the engine s 8 pin box connector to a host device Cable for 8 pin Box Connector USB interface Figure 3 5...

Страница 26: ...20 Cable for 8 pin Box Connector RS 232 interface Figure 3 6...

Страница 27: ...ace connector Hot plugging could damage the engine Unstable power supply or sharp voltage drops or unreasonably short interval between power ons may lead to unstable performance of the engine Do not r...

Страница 28: ...meter Standard pk pk Unit EXT_VCC 250 mV EXT_VCC Ripple Figure 4 2 I O Voltage Table 4 3 Parameter Condition Minimum Typical Maximum Unit VIL Low Level Input Voltage 0 3 0 0 8 V VIH High Level Input V...

Страница 29: ...Peak Current rms I max I Unit Working Current VDD 5 0V with NFC 762 230 8 706 mA Standby Current 107 3 219 mA Working Current VDD 5 0V without NFC 551 196 6 542 mA Standby Current 29 6 52 mA Peak Cur...

Страница 30: ...24 Standby Current Figure 4 5 Peak Current VDD 5 0V with NFC Figure 4 6...

Страница 31: ...25 Working Current Figure 4 7 Standby Current Figure 4 8...

Страница 32: ...26 Timing Sequence Power Up and Power Down Timing Sequence EXT_VCC USB_D USB_D RS232_TX RS232_RX EXT_TRIG EXT_DSF 1 0s 1 3s EXT_BUZ Figure 4 9 8 pin box connector without NFC...

Страница 33: ...g off the engine ensure that data transmission via its communication interface s is complete to prevent transmission errors 3 Before the EXT_VCC is powered on ensure that other signals remain low to p...

Страница 34: ...rence Circuit External Circuit Design Good Read LED Circuit The circuit below is used to drive an external LED for indicating good read Figure 5 1 Beeper Circuit The circuit below is used to drive an...

Страница 35: ...29 Trigger Circuit The circuit below is used to provide the engine with a signal to trigger a scan and decode session Figure 5 3...

Страница 36: ...Auxiliary Tool The EM20 85 provides the following tool to assist users in engine configuration EasySet EasySet is a Windows based configuration tool developed by Newland which can be used to configure...

Страница 37: ...SCANNING MADE SIMPLE Newland EMEA HQ 31 0 345 87 00 33 info newland id com newland id com Need more info Contact us or one of our partners at newland id com partners...

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