XMODUS XM8200S Series User manual

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

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Information provided by xmodus swiss is believed to be accurate and reliable. However, no
responsibility is assumed by xmodus swiss for its use, nor any infringement of patents or
other rights of third parties which may result from its use. No license is granted by implication
or otherwise under any patent rights of xmodus 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 registered trademarks of their respective companies. All other marks
mentioned herein are the property of their respective owners.
© 2011 xmodus swiss GmbH
Printed in Switzerland
All Rights Reserved

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Table of Contents
1. INTRODUCTION..........................................................................................................5
1.1 Models Description .......................................................................................................5
1.2 Summary ......................................................................................................................5
1.3 Typical Applications......................................................................................................6
1.4 Product Specifications ..................................................................................................7
2. TECHNICAL OVERVIEW ............................................................................................8
2.1 Block Diagram of Wi-Fi Module ....................................................................................8
2.2 Supported Interfaces ....................................................................................................8
3. HARDWARE INTERFACE...........................................................................................9
3.1 Interface Signals...........................................................................................................9
3.2 Signal Description.........................................................................................................9
3.3.1 Signal Description...............................................................................................11
3.4 Antenna Interface (RF) ...............................................................................................14
3.4.1 RF 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 Regulatory Approvals ...................................................................21
7.1.1 Regulatory Requirements ...................................................................................21
7.1.2 Regulatory Statement .........................................................................................21
7.2 Safety Precautions .....................................................................................................22
7.2.1 User Operation ...................................................................................................22
7.2.2 Antenna Installation ............................................................................................22
7.2.3 Antenna care and replacement...........................................................................22
7.2.4 Electronic devices...............................................................................................22

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List of Tables & Figures
TABLE 3-1. SERIAL 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

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1
1. . I IN NT TR RO OD DU UC CT TI IO ON N
1.1 Models Description
Models Modulation Interface Connectors Interfaces / Power
XM8200S-5V 802.11b and 802.11g DIL-64 Header (RM2)
U.FL RF Connector
RS232 TTL Level
5 VDC Power
XM8000S-3V 802.11b and 802.11g DIL-64 Header (RM2)
U.FL RF Connector
RS232 TTL Level
3.3 VDC Power
1.2 Summary
The Xmodus XM8200S Socket Modem provides the OEM with a complete WLAN 802.11b and
802.11g modem in a compact socket-mountable module. The compact size and high level of
integration of the Socket Modem minimizes real estate and cost for motherboard and box
modem applications. Its low power consumption makes it ideal for portable applications such
as pocket modems and for a wide variety of embedded control applications. The pin
compatibility between the full ranges of all the xmodus socket modems allows upgrading 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. This module makes adding WiFi
connectivity to embedded devices a breeze. It does not require any kind of WiFi driver
development on the host CPU, and its multiple interface (UART and USB) minimize the need
to redesign the host device hardware. The high-level AT+i™ API eliminates the need to add
WiFi drivers, security and networking protocols and tasks to the host application. The firmware
supports the SSL3/TLS1 protocol for secure sockets, HTTPS and FTPS, WEP, WPA/WPA2
(PSK and Enterprise) WiFi encryption. The firmware and configuration parameters are stored
in on-board flash memory. The module is power-efficient: the core operates at 1.2V, while I/Os
operate at 3.3V. Power Save mode further reduces power consumption.

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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.

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1.4 Product Specifications
Hardware Description:
Size: 64.5 x 26.5 x 10.5 mm
Core CPU: 32-bit RISC ARM7TDMI, low-
leakage, 0.13 micron, at 48MHz
Operating Voltage: +3.3V/5.0V
Operating Humidity: 90% maximum (non-
condensing)
Operating Temperature Range:
-20°c to
+75°c (-4° to 167°F)
Power Consumption:
Transmit –250mA@16dbm,
235mA@12dbm (typical) 
Receive – 190mA (typical)
Power Save mode – 8mA
RF Connector: U.FL of Hirose
Connector: Pin Header (2mm pitch)
Host Interface: Serial and USB device.
RoHS-compliant; lead-free
Wireless Specifications:
Standards supported: IEEE 802.11b/g
Frequency: Europe – 2.412-2.472GHz USA
– 2.412-2.462GHz
Channels: Europe – 13 channels USA – 11
channels.
Performance Specifications:
Host Data Rates:
-UART: Up to 3Mbps
-Serial Data Format (AT+i mode):
Asynchronous character; binary; 8
data bits; no parity; 1 stop bit
Serial Data Format (SerialNET mode):
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 Program Interface:
AT+i protocol for Internet Controller mode
SerialNET mode for transparent serial data-
to-Internet bridging
LAN-WiFi transparent bridging
PPP operation mode for Modem-WiFi
conversion
Warranty:
One year
Certifications:
• Radio & EMC:
-USA
FCC Modular Approval, FCC ID: XM5-
SM2144N1 o CFR Title 47 FCC Part 15,
Subpart B and C
-Canada
Industry Canada Module Approval IC:
8516A-SM2144N2 o Industry Canada
ICES-003, RSS-Gen, RSS-210
-EU
EN 300 328 (R&TTE Directive 1999/5/EC)
o EN 301 489 (EMC Directive
2004/108/EC)
• Safety:
UL 60950
CAN/CSA-C22.2 No. 60950
EN 60950, Low Voltage Directive
(2006/95/EC)
Installation Requirements:
The XM8200S must be installed within a full-
enclosure device that is safety certified.

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2
2. . T TE EC CH HN NI IC CA AL L O OV VE ER RV VI IE EW W
2.1 Block Diagram of Wi-Fi Module
2.2 Supported Interfaces
The major hardware signal interfaces 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
Interface
5
3
Leds 1
1

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3
3. . H HA AR RD DW WA AR RE E I IN NT TE ER RF FA AC CE E
3.1 Interface Signals
The 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.

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Figure 3-1. SERIAL PINOUT
Table 3-1. Serial TTL Signals
PIN NAME I/O TYPE PIN NAME I/O TYPE
1 NC Not connected 33 #RTS Input
2 NC Not connected 34 #RXD Output
3 No pin 35 #TXD Input
4 No pin 36 #RI Output
5 No pin 37 #DSR Output
6 No pin 38 #CTS Output
7 No pin 39 #DCD Output
8 No pin 40 #DTR Input
9 No pin 41 GND GND digital
10 No pin 42 USB (-) Bidir.
11 No pin 43 USB (+) Bidir.
12 No pin 44 USB-VCC Input
13 No pin 45 No pin
14 No pin 46 No pin
15 No pin 47 No pin
16 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 Not connected 64 NC
SERIAL TTL
INTERFACE
USB
INTERFACE
POWER
SUPPLY
LED / RESET
INTERFACE
Notes: Pins 3-23 and 45-60 are not installed.
DTR# 40
NC
27
NC
1
CTS# 38
USB (+) 43
RTS# 33
DSR# 37
NC 62
TXD# 35
NC 64
NC
32
NC
30
USB (-) 42
NC
28
NC
2
GND 41
DCD# 39 GND
26
RXD# 34
VCC 61
RESET
24
RI# 36
GND 63
MSEL
25
USB-VCC 44
NC
31
NETLED
29
To
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