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XMODUS XM8200S Series, Designer'S Manual, Page: 6 / 22

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XMODUS XM8200S Series Designer'S Manual Download Page 6

XM8200S Designer’s Guide 

 
 

XM8200S-E00-100 xmodus 

swiss GmbH  

Seite 6 / 22 

1.3 Typical 

Applications 

 

 

Adding WiFi to serial embedded devices  

 

Replacing LAN cable using WiFi  

 

Adding SSL security to M2M solutions  

 

The XM8200S supports several operation modes:  

 

-

 

SerialNetTM Serial to WiFi Bridge - allowing transparent bridging of Serial over WiFi, 

using the 3Mbps fast UART. This is a true plug-and-play mode that eliminates any 

changes to the host application.  

 

-

 

PPP modem emulation – allowing existing (e.g. modem) designs currently using PPP 

to connect transparently over WiFi  

 

-

 

Full Internet Controller mode – allowing simple MCU to use the rich  protocol and 

application capabilities to perform complex Internet operations such as E-mail, FTP, 

SSL, embedded web server and others. It also acts as a firewall, providing a security 

gap between the application and the network.  

 

 

 

Summary of Contents for XM8200S Series

Page 1: ...XM8200S Designer s Guide XM8200S E00 100 xmodus swiss GmbH Seite 1 22 WLAN Socket Modem XM8200S 5V XM8200S 3V Designer s Guide Version 100 Released 29 March 2011 ...

Page 2: ...dus other than for circuitry embodied in xmodus products Xmodus swiss reserves the right to change circuitry at any time without notice This document is subject to change without notice Please read carefully the safety precautions for a terminal based on the XM8200S Socket Modem Product names or services listed in this publication are for identification purposes only and may be trademarks or regis...

Page 3: ...Connector 14 3 4 2 Antenna Installation 15 3 4 3 User Operation 15 3 5 RESET Signal 16 3 5 1 Recommended Reset Circuit 16 4 POWER SUPPLY 17 4 1 Power Loss shut down 17 5 DESIGN GUIDELINES 18 5 1 Electromagnetic Interference EMI Considerations 18 5 1 1 Grounding 19 5 1 2 RF Antenna 19 5 2 Manufacturing Considerations 19 6 MODULE DIMENSIONS 20 7 REGULATORY APPROVALS 21 7 1 Considerations for Regulat...

Page 4: ...AL TTL SIGNALS 10 TABLE 3 2 SIGNAL DESCRIPTIONS 11 TABLE 3 3 SIGNAL DESCRIPTIONS CONT D TABLE 3 3 SIGNAL DESCRIPTIONS CONT D TABLE 3 4 DIGITAL ELECTRICAL CHARACTERISTICS 13 TABLE 3 5 ABSOLUTE MAXIMUM RATINGS 13 Figure 2 1 Interface Block Diagram 8 Figure 3 1 Serial Pinout 10 Figure 6 2 Mechanical drawings 20 ...

Page 5: ...ng and production configurability without hardware changes This designer s guide describes the modem hardware AT commands and S registers are defined in the AT Command Reference Manual The XM8200S is a secure embedded Wireless LAN bridge that easily connects embedded devices to 802 11b g Wireless LANs It includes the iChip CO2144 IP Communication Controller chip and Marvell 88W8686 WiFi chipset Th...

Page 6: ... over WiFi using the 3Mbps fast UART This is a true plug and play mode that eliminates any changes to the host application PPP modem emulation allowing existing e g modem designs currently using PPP to connect transparently over WiFi Full Internet Controller mode allowing simple MCU to use the rich protocol and application capabilities to perform complex Internet operations such as E mail FTP SSL ...

Page 7: ...Asynchronous character binary 7 or 8 data bits odd even or no parity 1 stop bit Flow Control Hardware RTS CTS and software flow control Internet Protocols ARP ICMP IP UDP TCP DHCP DNS NTP SMTP POP3 MIME HTTP FTP and TELNET Security protocols SSL3 TLS1 HTTPS FTPS RSA AES 128 256 3DES RC 4 SHA 1 MD 5 WEP WPA WPA2 PSK and Enterprise Protocols accelerated in hardware AES 3DES and SHA Application Progr...

Page 8: ...nterfaces of the xmodus Series Socket Modem are illustrated in Figure 1 1 Figure 2 1 Interface Block Diagram The RS232 Interface is connected via eight pins to the module The Indicators are connected via one pin to the module The power supply is connected via one pin to the module The USB Interface is connected via 2 pins to the module Socket WLAN Modem Module Serial USB Interface Antenna Interfac...

Page 9: ...e Socket Modem pin assignments with DTE serial TTL interface SIM Card and Analog Interface are shown in Figure 3 1 and are listed in Table 3 1 3 2 Signal Description The Socket Modem interface signals are described in Table 3 3 The digital electrical characteristics are listed in Table 3 4 The analog electrical characteristics are listed in Table 3 5 ...

Page 10: ...6 No pin 48 No pin 17 No pin 49 No pin 18 No pin 50 No pin 19 No pin 51 No pin 20 No pin 52 No pin 21 No pin 53 No pin 22 No pin 54 No pin 23 No pin 55 No pin 24 RESET Input 56 No pin 25 MSEL Input 57 No pin 26 GND GND Digital 58 No pin 27 NC Not connected 59 No pin 28 NC Not connected 60 No pin 29 NET LED Output 61 VCC VDC POWER 30 NC Not connected 62 NC 31 NC Not connected 63 GND GROUND 32 NC No...

Page 11: ...the original factory default values and to stored values in NVRAM RESET is connected to a built in reset circuit on the Socket Modem Reset must be held low for at least 5mS to activate the reset logic The modem is ready to use 200mS after the reset Connect the reset line to ground through a 1nF capacitor to ensure good ESD immunity and to comply with ESD tests according to EN 61000 4 2 This signal...

Page 12: ... to the DTE CTS 38 O OA Clear To Send EIA CB ITU T CT106 CTS output ON low indicate that the modem is ready to accept data from the DTE In normal mode RTS CTS flow control is selected DCD 39 O OA Data Carrier Detected EIA CF ITU T CT109 During normal operation DCD is always active low RI 36 O OA Ring Indicator EIA CE ITU T CT125 RI output is always inactive high DTR 40 I IB Data Terminal Ready EIA...

Page 13: ...dc ILOAD 2 mA ILOAD 0 mA max Reset Low Input Voltage pin 24 VIL 0 8 internally pulled up to VCC by 47kΩ Table 3 5 Absolute Maximum Ratings Parameter Symbol Min Typ Max Units Test Condition Supply Voltage VDD 0 3 6 0 Vdc Input Voltage VIN 0 5 7 0 Vdc Nominal Supply Voltage 5V Version 3V Version VDD 4 75 3 20 5 25 3 45 Vdc Static Discharge Voltage 25 C VESD 2500 V Operating Temperature Range Operati...

Page 14: ...erformance of the XM8200S signal quality current consumption etc The following guidelines should be followed Make sure that the antenna or antenna assembly matches the Antenna Interface Specifications Use low loss RF cable and connectors keeping cable runs to a minimum In order to prevent mutual interference between the GSM and the WLAN antennas in stacked configuration a minimum distance that pro...

Page 15: ...rate your unit when a person is within 8 inches 20 centimeters of the antenna A person or object within 8 inches 20 centimeters of the antenna could impair call quality and may cause the phone to operate at a higher power level than necessary IMPORTANT The unit must be installed in a manner that provides a minimum separation distance of 20 cm or more between the antenna and persons to satisfy FCC ...

Page 16: ...t is necessary this input can be left open If used emergency reset it has to be driven by an open collector or an open drain Switch Reset Reset Pin 24 Reset Status 1 0 Active 0 1 Inactive Additional comments on RESET The reset process is activated either by the external Reset signal OR by an internal signal coming from the internal RESET generator This automatic reset is activated at power up The ...

Page 17: ...r supply levels in order to operate the unit within specifications Table 4 1 Power Supply Signals Pin Nr Signal name Description 26 41 GND Main ground connection for module 61 VCC VIN 3 3 V or 5 V IRMS 190 mA during receive IMAX 280 mA during transmit bursts 4 1 Power Loss shut down A low power shut down occurs when the WLAN module senses the external power supply is below the minimal operating li...

Page 18: ...rtification 5 1 Electromagnetic Interference EMI Considerations The EMC tests have to be performed as soon as possible on the application to detect any possible problem When designing special attention should be paid to Possible spurious emission radiated by the application to the RF receiver in the receiver band Metallic case or plastic casing with conductive paint are recommended The following g...

Page 19: ...rking with an antenna manufacturer either to develop an antenna adapted to the application or to adapt an existing solution to the application The antenna adaptation mechanical and electrical adaptation is one of the key issues in the design of a WLAN terminal The antenna cable and the antenna should be as far as possible away from other circuitry specially switching regulators analog and uC digit...

Page 20: ...Guide XM8200S E00 100 xmodus swiss GmbH Seite 20 22 6 6 M MO OD DU UL LE E D DI IM ME EN NS SI IO ON NS S FIGURE 6 2 MECHANICAL DRAWINGS 26 5 mm Pin 1 2 0 Top View Dimensions in Millimeters 64 5 mm Top View 7 0 mm 6 5 mm ...

Page 21: ...y precautions must be observed during all phases of the operation usage service or repair of any terminal or mobile incorporating the WLAN module Manufacturers of the terminal are advised to convey the following safety information to users and operating personnel and to incorporate these guidelines into all manuals supplied with the product Failure to comply with these precautions violates safety ...

Page 22: ...sfy the categorical exclusion requirements for mobile transmitters the following requirements must be met 7 2 2 Antenna Installation A minimum separation distance of 20 cm needs to be maintained between the antenna and all persons The transmitter effective radiated power must be less than 3 0 Watts ERP 4 9 Watts or 36 9 dBm EIRP This requires that the combination of antenna gain and feed line loss...

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