Digi XBee User manual

XBee® Wi-Fi RF Module
Wi-Fi RF Modules by Digi International
Firmware version: x201x
11001 Bren Road East
Minnetonka, MN 55343
877 912-3444 or 952 912-3444
http://www.digi.com
90002180_C

XBee® Wi-Fi RF Modules
© 2013 Digi International, Inc. 2
© 2013 Digi International, Inc. All rights reserved
No part of the contents of this manual may be transmitted or reproduced in any form or by any means without
the written permission of Digi International, Inc.
XBee® is a registered trademark of Digi International, Inc.
Technical Support Phone: [phone] toll-free U.S.A. & Canada
[phone] Worldwide
8:00 am - 5:00 pm [U.S. Mountain Time]
Online Support: http://www.digi.com/support/eservice/login.jsp
Email: rf-[email protected]m

XBee® Wi-Fi RF Modules
© 2013 Digi International, Inc. 3
Contents
XBee® Wi-Fi RF Module .......................................................................................................................... 1
1. Overview ....................................................................................................................................... 8
Specifications...................................................................................................................................... 8
General Specifications .................................................................................................................... 8
RF Specifications............................................................................................................................. 8
Electrical Specifications ................................................................................................................ 13
Serial Communications Specifications.......................................................................................... 13
UART ............................................................................................................................................. 13
SPI ................................................................................................................................................. 14
GPIO Specifications....................................................................................................................... 14
Agency Approvals ......................................................................................................................... 15
Mechanical Drawings ................................................................................................................... 15
Pin Signals......................................................................................................................................... 17
Design Notes..................................................................................................................................... 18
Power Supply................................................................................................................................ 19
Recommended Pin Connections .................................................................................................. 19
Board Layout ................................................................................................................................ 19
Design Notes for PCB Antenna Modules ...................................................................................... 20
Design Notes for RF Pad ............................................................................................................... 23
Mounting Considerations – Xbee Wi-Fi Through-hole ................................................................. 25
2. RF Module Operation ....................................................................................................................... 26
Serial Communications..................................................................................................................... 26
UART Communications................................................................................................................. 26
SPI Communications..................................................................................................................... 27
Serial Buffers .................................................................................................................................... 29
Serial Receive Buffer..................................................................................................................... 29
Serial Transmit Buffer................................................................................................................... 29
UART Flow Control ....................................................................................................................... 30
Serial Interface Protocols ................................................................................................................. 31
Transparent Operation................................................................................................................. 31
API Operation ............................................................................................................................... 31
A Comparison of Transparent and API Operation........................................................................ 32
Modes of Operation ......................................................................................................................... 33
Idle Mode ..................................................................................................................................... 33

XBee® Wi-Fi RF Modules
© 2013 Digi International, Inc. 4
Transmit Mode ............................................................................................................................. 33
Receive Mode............................................................................................................................... 33
Command Mode........................................................................................................................... 33
Configuration Mode ......................................................................................................................... 35
Forcing Entry into Configuration Mode........................................................................................ 35
Using X-CTU to Enter Configuration Mode................................................................................... 36
Sleep Mode....................................................................................................................................... 36
3. 802.11 bgn Networks ....................................................................................................................... 37
Infrastructure Networks ................................................................................................................... 37
Ad Hoc Networks.............................................................................................................................. 37
Network Basics ................................................................................................................................. 38
XBee® Wi-Fi Standards ..................................................................................................................... 39
Encryption ........................................................................................................................................ 39
Channels ........................................................................................................................................... 39
4. XBee IP Services................................................................................................................................ 41
XBee Application Service .................................................................................................................. 41
Local Host ..................................................................................................................................... 41
Network Client.............................................................................................................................. 42
Sending Configuration Commands............................................................................................... 43
Sending Serial Data Command to XBee........................................................................................ 44
Sending Over-the-Air Firmware Upgrades ....................................................................................... 45
Serial Communication Service.......................................................................................................... 46
Transparent Mode........................................................................................................................ 46
API Mode ...................................................................................................................................... 46
5. Sleep ................................................................................................................................................. 48
Using Sleep Mode: UART................................................................................................................. 48
Using Sleep Mode: SPI ..................................................................................................................... 48
Sleep Options ................................................................................................................................... 49
AP Associated Sleep...................................................................................................................... 49
Deep Sleep (Non-Associated Sleep) ............................................................................................. 50
Sampling Data Using Sleep Modes ................................................................................................... 51
Sample Rate (ATIR) ....................................................................................................................... 51
Wake Host .................................................................................................................................... 51
6. Advanced Application Features........................................................................................................ 52
XBee Analog and Digital I/O Lines .................................................................................................... 52

XBee® Wi-Fi RF Modules
© 2013 Digi International, Inc. 5
I/O Sampling ..................................................................................................................................... 53
Queried Sampling ......................................................................................................................... 54
Periodic I/O Sampling ................................................................................................................... 55
Change Detection Sampling ......................................................................................................... 55
I/O Examples................................................................................................................................. 56
General Purpose Flash Memory ....................................................................................................... 56
Accessing General Purpose Flash Memory .................................................................................. 56
Working with Flash Memory ........................................................................................................ 63
Over-the-Air Firmware Upgrades ..................................................................................................... 63
Distributing the New Application ................................................................................................. 63
Verifying the New Application...................................................................................................... 64
Installing the Application.............................................................................................................. 64
Things to Remember .................................................................................................................... 65
7. API Operation ................................................................................................................................... 66
API Frame Specifications .................................................................................................................. 66
API UART and SPI Exchanges ............................................................................................................ 69
AT Commands............................................................................................................................... 69
Transmitting and Receiving RF Data............................................................................................. 69
Remote AT commands ................................................................................................................. 70
Supporting the API........................................................................................................................ 70
API Frames........................................................................................................................................ 71
TX (Transmit) Request: 64-Bit....................................................................................................... 71
Remote AT Command Request .................................................................................................... 72
AT Command ................................................................................................................................ 73
AT Command-Queue Parameter Value ........................................................................................ 74
ZigBee Transmit Packet ................................................................................................................ 75
ZigBee Explicit Transmit Packet.................................................................................................... 76
ZigBee Remote AT Command....................................................................................................... 77
Transmit (TX) Request: IPv4 ......................................................................................................... 78
Put Request .................................................................................................................................. 79
Device Response........................................................................................................................... 80
Rx (Receive) Packet: 64-bit .......................................................................................................... 81
Remote Command Response ....................................................................................................... 82
AT Command Response................................................................................................................ 83
Transmission Status...................................................................................................................... 84

XBee® Wi-Fi RF Modules
© 2013 Digi International, Inc. 6
Modem Status .............................................................................................................................. 85
ZigBee TX Status ........................................................................................................................... 86
IO Data Sample RX Indicator ........................................................................................................ 87
ZigBee Receive Packet .................................................................................................................. 89
Explicit ZigBee Receive Packet...................................................................................................... 90
ZigBee Remote AT Command Response ...................................................................................... 91
RX (Receive) Packet: IPv4 ............................................................................................................. 92
Put Response ................................................................................................................................ 93
Device Request ............................................................................................................................. 94
Device Response Status................................................................................................................ 95
Frame Error................................................................................................................................... 95
8. XBee Command Reference Tables.................................................................................................... 96
Addressing ........................................................................................................................................ 96
Networking Commands.................................................................................................................... 97
Security Commands.......................................................................................................................... 97
RF Interfacing Commands ................................................................................................................ 97
Serial Interfacing............................................................................................................................... 98
I/O Settings ....................................................................................................................................... 99
Diagnostics Interfacing ................................................................................................................... 102
AT Command Options .................................................................................................................... 103
Sleep Commands ............................................................................................................................ 103
Execution Commands ..................................................................................................................... 104
9. Module Support.............................................................................................................................. 105
X-CTU Configuration Tool ............................................................................................................... 105
Serial Firmware Updates ................................................................................................................ 105
Regulatory Compliance .................................................................................................................. 105
10. Agency Certifications.................................................................................................................... 106
United States FCC ....................................................................................................................... 106
Europe (ETSI) .................................................................................................................................. 112
OEM Labeling Requirements...................................................................................................... 112
Restrictions..................................................................................................................................... 113
Declarations of Conformity ........................................................................................................ 113
Approved Antennas.................................................................................................................... 114
Canada (IC) ..................................................................................................................................... 114
Labeling Requirements............................................................................................................... 114

XBee® Wi-Fi RF Modules
© 2013 Digi International, Inc. 7
Transmitters with Detachable Antennas.................................................................................... 115
Australia (C-Tick)............................................................................................................................. 115
11. Manufacturing Information for Surface Mount XBee .................................................................. 116
Recommended Solder Reflow Cycle............................................................................................... 116
Recommended Footprint ............................................................................................................... 117
Common Footprint for Through-hole and Surface Mount......................................................... 118
Flux and Cleaning............................................................................................................................ 118
Reworking....................................................................................................................................... 119
12.Glossary of Terms .......................................................................................................................... 120
Definitions ...................................................................................................................................... 120

XBee® Wi-Fi RF Modules
© 2013 Digi International, Inc. 8
1. Overview
The XBee® Wi-Fi RF module provides wireless connectivity to end-point devices in
802.11 bgn networks. Using the 802.11 feature set, these modules are interoperable
with other 802.11 bgn devices, including devices from other vendors. With XBee, users
can have their 802.11 bgn network up and running in a matter of minutes.
The XBee® Wi-Fi modules are compatible with other devices that use 802.11 bgn
technology. These include Digi external 802.11x devices like the ConnectPort products
and the Digi Connect Wi-SP, as well as embedded products like the ConnectCore series
and Digi Connect series of products. More information on these Digi products can be
found at:
http://www.digi.com/products/wireless/wifisolutions/
Specifications
General Specifications
Specification XBee Wi-Fi
Through-hole
XBee Wi-Fi
Surface Mount
Dimensions 0.960 x 1.297
(2.438cm x 3.294cm)
0.866 x 1.330 in
(2.200 x 3.378 cm)
Operating Temperature -30 to 85° C
Antenna Options
PCB Antenna, U.FL Connector,
RPSMA Connector, or Integrated
Wire
PCB Antenna, U.FL Connector,
or RF Pad
RF Specifications
Specification
XBee Wi-Fi
Through-hole
XBee Wi-Fi
Surface Mount
Frequency ISM 2.4-2.5GHz
Number of Channels 13
Adjustable Power Yes
Wi-Fi Standards 802.11 b, g, and n
Transmit Power Output
(Average)
Up to +16 dBm
(See table below)
FCC/IC Test Transmit
Power Range (Peak)
802.11b
802.11g
802.11n (800 ns GI)
802.11n (400 ns GI)
2.73 to 26.81 dBm
7.87 to 28.52 dBm
8.03 to 28.75 dBm
8.04 to 28.64 dBm
802.11b
802.11g
802.11n (800 ns GI)
802.11n (400 ns GI)
2.08 to 26.13 dBm
7.15 to 27.72 dBm
7.02 to 27.89 dBm
7.33 to 28.20 dBm
RF Data Rates 1 Mbps to 72.22 Mbps
(See table below)
Receiver Sensitivity
(25
℃
, <10% PER)
-93 to -71 dBm
(See table below)

XBee® Wi-Fi RF Modules
© 2013 Digi International, Inc. 9
RF Data Rates
RF Data Rates
Standard
Data rates (Mbps)
802.11b 1, 2, 5.5, 11
802.11g
6, 9, 12, 18, 24, 36, 48, 54
Standard MCS index
Data rates (Mbps)
800 ns guard interval 400 ns guard interval
802.11n
0
6.5
7.22
1 13 14.44
2
19.5
21.67
3 26 28.89
4
39
43.33
5 52 57.78
6
58.5
65
7 65 72.22

XBee® Wi-Fi RF Modules
© 2013 Digi International, Inc. 10
Receiver Sensitivity
Receiver Sensitivity (25
℃
, < 10% PER)
Standard Data rate Sensitivity (dBm)
802.11b
1 Mbps -93
2 Mbps -91
5.5 Mbps -90
11 Mbps
-87
802.11g
6 Mbps -91
9 Mbps
-89
12 Mbps -88
18 Mbps -86
24 Mbps -83
36 Mbps
-80
48 Mbps -76
54 Mbps
-74
802.11n
MCS 0 6.5/7.22 Mbps -91
MCS 1 13/14.44 Mbps
-88
MCS 2 19.5/21.67 Mbps -85
MCS 3 26/28.89 Mbps
-82
MCS 4 39/43.33 Mbps -78
MCS 5 52/57.78 Mbps
-74
MCS 6 58.5/65 Mbps -73
MCS 7 65/72.22 Mbps -71