PW2050 Embedded Device Server Integration Guide Part Number 900-731-R Revision A.
Intellectual Property © 2015 Lantronix, Inc. All rights reserved. No part of the contents of this publication may be transmitted or reproduced in any form or by any means without the written permission of Lantronix. Lantronix is a registered trademark of Lantronix, Inc. in the United States and other countries. Patented: patents.lantronix.com; Additional patents pending. Windows is a registered trademark of Microsoft Corporation. Wi-Fi is a registered trademark of Wi-Fi Alliance Corporation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures: 1. Reorient or relocate the receiving antenna. 2. Increase the separation between the equipment and receiver. 3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. 4.
In the event that these conditions cannot be met (for example certain laptop configurations, general purpose PCMCIA or similar cards, or co-location with another transmitter) and obtaining a separate FCC authorization will be required, then the FCC authorization is no longer considered valid and the FCC ID cannot be used on the final product (including the transmitter). Changes or modifications to this device not explicitly approved by Lantronix will void the user's authority to operate this device.
Table of Contents Intellectual Property ________________________________________________________ Contacts _________________________________________________________________ Disclaimer ________________________________________________________________ Warranty _________________________________________________________________ Revision History ___________________________________________________________ List of Figures _____________________________________________________________ List of Tables ___________________
List of Figures Figure 2-1 PW2050 Dimensions and Views ____________________________________ 10 Figure 2-2 PW2050 Wi-Fi SMT Pin Locations ___________________________________ 15 Figure 2-3 Reverse-SMA to U.FL (Long) (Lantronix Part Number 500-180-R-ACC) _____ 16 Figure 2-4 U.FL to U.FL Cable (Lantronix Part Number 500-181-R-ACC) _____________ 17 Figure 2-5 Reverse-SMA to U.
1: Introduction About the Integration Guide This user guide provides the information needed to integrate the Lantronix® PW2050™ family of products into customer-printed circuit boards. This manual is intended for engineers responsible for integrating the PW2050 module into their product. The scope of this document provides how to connect the various module pin function groups as well as general module placement and mounting.
Additional Documentation Visit the Lantronix web site at www.lantronix.com/support/documentation for the latest documentation and the following additional documentation. Document Description PW2050 Embedded Device Server Data Sheet Provides a unit description and all technical and compliance specifications for the module PW2050 Embedded Device Server User Guide Provides information needed to configure, use, and update the PW2050 firmware.
2: Functional Description Designed for quick integration with minimal engineering effort, the chip-sized PW2050 embedded device server provides simplicity and flexibility making it the easiest and fastest networking-enabling module on the market. PW2050 device servers are extremely compact networking solution that enables Ethernet or Wireless connectivity on virtually any device with a serial interface.
♦ 13 Configurable I/O pins ♦ Power supply filters ♦ Reset circuit ♦ Integrated wake up and shutdown for sleep and standby states ♦ Interface for connection to an external JTAG software debugger. ♦ Dedicated two wire serial port for debug The PW2050 Wi-Fi embedded device server requires +5-volt DC power and is designed to operate in an extended temperature range (see PW2050 data sheet for all technical specifications).
Signal Descriptions The PW2050 embedded device server has a serial interface compatible with data rates up to 921,600 bps (in high-performance mode). All of the logic IO pins are 3.3V tolerant. The serial signals usually connect to an internal device, such as a UART. For applications requiring an external cable running with RS-232 or RS422/485 voltage levels, the PW2050 must interface to a serial transceiver chip. An on module 10/100Mbps Ethernet MAC and PHY are included on the module.
Signal Name PW2050 Pin # Primary Function USB2- 22 USB (Negative) USB High Speed Host Port RTS2 24 UART2 serial ready to send output CTS2 25 UART2 clear to send input CP9 26 Configurable GPIO DBTX 27 Debug UART serial transmit data output DBRX 28 Debug UART serial receive data input ETXP (ETH1+) 34 Ethernet TX (positive) Future Gbit pair 1 (pos) ETXM (ETH1-) 35 Ethernet TX (negative) Future Gbit pair 1 (net) TXCT (ECT1)_ 37 Center Tap connection for Ethernet TX pair RXCT (ECT2)
Signal Name PW2050 Pin # Primary Function USB3+ 52 USB (Positive) USB Full Speed Host Port USB3- 53 USB (Negative) USB Full Speed Host Port SPEED_LED 56 Ethernet Speed LED, Active low for 100Mbps CP13 57 Configurable GPIO CP12 58 Configurable GPIO CP11 59 Configurable GPIO CP10 60 Configurable GPIO WAKE 65 CPU Wake up input. Module wakes from low power state on a rising edge DEFAULT# 66 Unit reset to default, active low.
Signal Name PW2050 Pin # Primary Function RXD1 82 UART1 Serial receive data input TXD1 83 UART1 serial transmit data output SHDN 88 Indicates when module is in standby state. Use to power off external devices RF1_CTL 97 Antenna Switch control. Pull low to select an external antenna connected to the RF1 pad (pin 2) and RF2 pad (pin 4).
Note1: The current module supports 10/100Mbps Ethernet. Additional pins have been called out for a future Gigabit Ethernet module. Note2: The logic IO pins are 3.3V tolerant. Note3: Pins 109 to 124 are the large ground pads under the module. These pads should be connected to ground. These pads also provide thermal relief for the module. It is recommended that multiple vias for each pad be used to connect the ground pads to the ground plane.
Antenna Type Peak Gain Typical Lantronix Part Number Vendor Vendor Part Number Approved Region Mexico Table 2-4 PW2050 Wi-Fi External Antenna Options via On Module U.FL Antenna Type Peak Gain Typical Lantronix Part Number Vendor Vendor Part Number Approved Region PCB Strip Antenna with 50mm cable to U.FL connector With tape backing 2.5dBi, 2.39 Ghz to 2.49 Ghz 5dBi, 4.9Ghz to 5.
Figure 錯誤! 使用 [常用] 索引標籤將 Heading 1 套用到您想要在此處顯示的文字。-4 U.FL to U.FL Cable (Lantronix Part Number 500-181-R-ACC) Figure 錯誤! 使用 [常用] 索引標籤將 Heading 1 套用到您想要在此處顯示的文字。-5 Reverse-SMA to U.FL (short) (Lantronix Part Number 500-182-R-ACC) Antenna Placement When designing the PW2050 Wi-Fi module to a mating board, it is important to consider the final installation of the unit and its location with respect to connecting access points.
See the figure images below showing recommended placement with the module chip antenna. Figure 錯誤! 使用 [常用] 索引標籤將 Heading 1 套用到您想要在此處顯示的文字。-6 Module with Chip Antenna Board Edge Mounting Edge of PCB Void region in red 6mmx23mm Example PCB Placement Note: The chip antenna region of the module shown in red above is at the top edge of the PCB. The area in red should be voided to optimize antenna performance. Using the RF1 Signal Pin Instructions TBD.
signal levels on the serial interface are 3.3V tolerant. The serial interfaces require an external transceiver in order to connect to external RS232, RS485, or RS422 networks. The signals of the Serial Ports may be connected as shown in the reference schematic below. The transceiver shown in the reference schematic is of type Exar, part number SP336. This transceiver is a multiprotocol RS232, RS485, RS422 transceiver. Single protocol transceivers may be used as required.
Note: The IO pins for PW2050 Wi-Fi SMT unit are set to floating input on power up until configured by unit firmware. An external 100K ohm pull-up may be required on the serial transmit signal to prevent downstream UART devices from detecting false characters on initial power up. Ethernet Interface The unit provides a 10/100 Mbps Ethernet interface for connection to an external network through external magnetics and an external RJ45.
Pin Name Description PW2050 Pins Signal Requirement RJ45 MagJack Belfuse, 08B01D1T-06-F Pin assignment ETXP Ethernet Transmit Positive signal. 34 100 ohm differential pair with ETXM 2 RXCT Center tap for receive pair. 38 Route > 20 mil width 6 TXCT Center tap for transmit pair 37 Route > 20 mil width 1 Chassis Unit chassis - RJ45 connector shield Shield tabs E_LNKACT Link / activity LED. Active low. Solid for link, blink for activity.
USB Host Port The PW2050 Module has two USB 2.0 Host port interfaces for connection to downstream USB devices. Each port consists of a differential pair. Port USB2 is a high speed port and port USB3 is a full speed port. These signals should be routed as 90 ohm differential pairs on a signal layer next to the signal ground plane. The use of vias should be minimized on these signals.
release of the Default button. A lit WLAN LED indicates the STA interface is associated with an access point.
Reset Pins PW2050 embedded device servers have two signals for use as reset signals. Signal EXT_RESET# is a hardware controlled input signal that will reboot the PW2050 processor when asserted low. Signal DEFAULT# is polled by the PW2050 software. When DEFAULT# is asserted low for six seconds, the unit will reset the system to the default manufacturing settings and reboot the unit. PW2050 has an additional signal that can be used to wake up the unit processor when the unit is in a sleep or power down state.
Figure 3-1 PW2050 Module Dimensions PW2050 Embedded Device Server Integration Guide 25
Figure 錯誤! 使用 [常用] 索引標籤將 Heading 1 套用到您想要在此處顯示的文字。-2 PW2050 Recommended Footprint The internal ground pads are used for module signal ground and thermal relief. The outer layers should be flooded with ground and the ground pads should have many vias to the internal ground layers. Soldering coverage should be maximized and checked via x-ray for proper design.
General guidelines are as follows: The solder composition typically sets the peak temperatures of the profile. Recommend lead free solder pastes SAC305: Type 4, water soluble or no clean are acceptable. Reflow equipment needed at least nine heater zones. Recommend forced air type reflow oven with nitrogen. It is recommended that the peak temperature at the solder joint be within 235°C ~ 245°C and the maximum component temperature should not exceed 245°C.
Product Information Label The product information label contains important information about your specific unit, such as its part number, revision, manufacturing date code, product model, country of origin, datamatrix barcode and MAC address.
Federal Communication Commission Interference Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed IMPORTANT NOTE: In the event that these conditions can not be met (for example certain laptop configurations or colocation with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID can not be used on the final product.
This device is intended only for OEM integrators under the following conditions: (For module device use) 1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2) The transmitter module may not be co-located with any other transmitter or antenna. As long as 2 conditions above are met, further transmitter test will not be required.
Ce module émetteur est autorisé uniquement pour une utilisation dans un dispositif où l'antenne peut être installée de telle sorte qu'une distance de 20cm peut être maintenue entre l'antenne et les utilisateurs. Le produit final doit être étiqueté dans un endroit visible avec l'inscription suivante: "Contient des IC: 3867A-PW2050".
(i) les dispositifs fonctionnant dans la bande 5150-5250 MHz sont réservés uniquement pour une utilisation à l’intérieur afin de réduire les risques de brouillage préjudiciable aux systèmes de satellites mobiles utilisant les mêmes canaux; (ii) le gain maximal d'antenne permis pour les dispositifs utilisant les bandes de 5250 à 5 350 MHz et de 5470 à 5725 MHz doit être conforme à la limite de la p.i.r.
Broadband Radio Access Networks (BRAN); 5GHz high performance RLAN; Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive - (EMC) EN 301 489-1 V1.9.2:2011 Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 1: Common technical requirements - EN 301 489-3 V1.6.
tulenevatele teistele asjakohastele sätetele. English Hereby, [name of manufacturer], declares that this [type of equipment] is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC. Español Por medio de la presente [nombre del fabricante] declara que el [clase de equipo] [Spanish] cumple con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1999/5/CE.
[Slovenian] Slovensky [Slovak] Suomi [Finnish] Svenska [Swedish] relevantnimi določili direktive 1999/5/ES. [Meno výrobcu] týmto vyhlasuje, že [typ zariadenia] spĺňa základné požiadavky a všetky príslušné ustanovenia Smernice 1999/5/ES. [Valmistaja = manufacturer] vakuuttaa täten että [type of equipment = laitteen tyyppimerkintä] tyyppinen laite on direktiivin 1999/5/EY oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen mukainen.
