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Digi International, Inc.
11001 Bren Road East
Minnetonka, MN 55343 U.S.A.
United States: +1 877 912-3444
Other locations: +1 952 912-3444
www.digiembedded.com
Contents
Chapter 1:About the Module..................................................................9
This guide provides information about the Digi Connect Wi-Wave embedded core
module.
Conventions used
in this guide
This table describes the typographic conventions used in this guide:
This conventionIs used for
italictypeEmphasis, new terms, variables, and document titles.
monospaced type
Digi information
Related
documentation
Documentation
updates
For additional documentation, see the Documentation folder in the Start menu.
Digi occasionally provides documentation updates on the Web site
(www.digiembedded.com/support).
Be aware that if you see differences between the documentation you received in
your package and the documentation on the Web site, the Web site content is the
latest version.
Filenames, pathnames, and code examples.
7
Contact
information
For more information about your Digi products, or for customer service and
technical support, contact Digi International.
The Digi Connect Wi-Wave module is an 802.11b/g WLAN communications module
for use in embedded applications. The module is a single circuit card packaged in a
PCI Express Mini Card form factor, and supports all the RF, analog, and digital
circuitry necessary to implement WLAN functionality. Using Digi’s baseband
processor technology, this module is the ideal choice for embedded applications
requiring long-term product availability in conjunction with reliability and easy
design integration.
The primary interface to the module is through a standards-compliant PCI Express
Mini Card edge connector, using a USB 2.0 full speed/high speed link for
communication with the host system.
Features
Note:
The Digi Connect Wi-Wave module also provides a dual diversity antenna option
through two on-board U.FL connectors, which allow for cabling to remote 2.4 GHz
antennas.
Ultra-compact and standards-based form factor
Easy design integration through USB 2.0 full speed/high speed interface
Dual diversity antenna option through two on-module U.FL antenna connectors
Digi 802.11b/g baseband processor technology for long-term product
-30°C to +60°C operating temperature for harsh environments
RoHS compliant design
The Digi Connect Wi-Wave edge connector pinout is compliant with the PCI
Express Mini Card Electromechanical Specification, Revision 1.1 (March 28,
2005) with this exception: the Digi Connect Wi-Wave has a 4-wire JTAG
programming interface mapped to pins 45, 47, 49, and 51.
10Connect Wi-Wave Hardware Reference, Rev. A, 2/2008
The Digi Connect Wi-Wave module edge connector is a 52-pin connector whose
pinout follows the standard PCI Express Mini Card edge connector pinout as stated
in the PCI Express Mini Card Electromechanical Specification, Revision 1.1, with this
exception: JTAG signals are mapped onto pins 45, 47, 49, and 51. These signals are
reserved and not intended for user applications.
The module uses a peripheral USB controller to interface to either a full speed or
high speed USB 2.0 link. The link first tries to communicate to the host system
board at the high speed USB rate (480 Mbps). If not successful, the link reverts to
the full speed USB rate (12 Mbps). This link is used for all communication between
the module and the host system board.
Note:
The Digi Connect Wi-Wave module does not support low-speed USB
connections.
802.11b/g modes and channels
The Digi Connect Wi-Wave transmits and receives data at up to 11 Mbps when
operating in 802.11b mode and up to 54 Mbps when operating in 802.11g mode. It
supports these 802.11b/g channels:
Channels 1 through 11 for North America (2.401 GHz–2.473 GHz)
Channels 1 through 13 for Europe (2.401 GHz–2.483 GHz)
Channels 1 through 14 for Asia (2.401 GHz–2.495 GHz)
Channel
allocations
ChannelCenter frequency
(MHz)
12412 2401 - 2423
22417 2406 - 2428
Frequency spread
(MHz - MHz)
324222411 - 2433
424272416 - 2438
524322421 - 2443
624372426 - 2448
724422431 - 2453
824472436 - 2458
924522441 - 2463
1024572446 - 2468
1124622451 - 2473
1224672456 - 2478
1324722461 - 2483
1424842473 - 2495
12Connect Wi-Wave Hardware Reference, Rev. A, 2/2008
Receiver
Sensitivity and
Transmit O ut p u t
Power
-71 dBm @ 54 Mbps
-81 dBm @ 11 Mbps
-88 dBm @ 6 Mbps
-93 dBm @ 1 Mbps
13.8 dBm OFDM
17 dBm PSK/CCK
Voltage regulators
The module takes in 3.3V±9% (3.00V to 3.60V) as its main input power. This power is
filtered and used as a 3.3V supply to portions of the digital logic. This power also
acts as input to dedicated on-board voltage regulators.
Voltage monitor — Reset generator
The module does not provide a voltage monitor or automatic reset signal generator;
rather, the module uses a reset signal generated by the host system board.
LEDS
The module does not have any on-board LEDs, but it drives the LED_WLAN# signal
(pin 44) to indicate WLAN association and transmit/receive activity. This table
shows the different LED states:
The module requires only +3.3 VDC, 750 mA max. This power must be a wellregulated +3.3V supply due to limited supply filtering in the module. The digital
inputs and outputs are 3.3V CMOS compatible. See “Power requirements” on
page 36 for specifications.
DISABLE signalThe module supports the active low
Express Mini Card Electromechanical Specification. This signal not only disables the
power supplies to the radio portion of the module, it also powers down additional
portions of the module to reduce power consumption to a minimum.
W_DISABLE# signal (pin 20) as specified in the PCI
14Connect Wi-Wave Hardware Reference, Rev. A, 2/2008
The development board is designed for product evaluation and development
purposes. In addition to the Digi Connect Wi-Wave connector, the development
board provides several breakout connectors and interfaces.
What’s on the development board
FeaturesDigi Connect Wi-Wave connector
Pushbutton reset switch and under voltage reset logic
External USB Type B connector USB peripheral interface
Additional signal headers for user access
Two U.FL RP-SMA antenna connectors
-30°C to +75°C ambient operating temperature
RoHS compliant design
15
The development
board
ABOUT THE DEVELOPMENT BOARD
What’s on the development board
Unpopulated
components
There are components on the development board that are currently not populated.
These components allow the development board to be used in other applications.
16Connect Wi-Wave Hardware Reference, Rev A 2/2008
Place the Digi Connect Wi-Wave module into the connector and support bracket,
J52, on the development board.
The Digi Connect Wi-Wave module connector is a 52-pin connector that conforms to
the PCI Express Mini Card Electromechanical Specification, Rev. 1.1, with additional
non-standard connections (to the reserved pins on the standard connector).
www.digiembedded.com17
ABOUT THE DEVELOPMENT BOARD
Digi Connect Wi-Wave module connector, J52
Note:
Signal direction w.r.t PCIe Mini Card.
PinTypeSignalPinTypeSignal
1n/aNo connect2InVcc_3.3
3n/aNo connect4InGND
5n/aNo connect6n/aNo connect
7n/aNo connect8OutUIM_PWR (C1)
9InGND10I/OUIM_DATA (C7)
11n/aNo connect12OutUIM_CLK (C3)
13n/aNo connect14OutUIM_RESET (C2)
15InGND16OutUIM_Vpp (C6)
KeyKeyKeyKeyKeyKey
17I/OUIM C818InGND
19I/OUIM C420InW_DISABLE#
21InGND22InRESET (PERST#)
23n/aNo connect24n/aNo connect
25n/aNo connect26InGND
27InGND28n/aNo connect
29InGND30n/aNo connect
31n/aNo connect32n/aNo connect
33n/aNo connect34InGND
35InGND36I/OUSB_D-
37n/aNo connect38I/OUSB_D+
39n/aNo connect40InGND
41n/aNo connect42OutLED_WWAN#
43n/aNo connect44OutLED_WLAN#
45n/a or InNo connect or JTAG_TCK46OutLED_WPAN#
47n/a or InNo connect or JTAG_TMS48n/aNo connect
49n/a or OutNo connect or JTAG_TDO50InGND
51n/a or InNo connect or JTAG_TDI52InVcc_3.3
18Connect Wi-Wave Hardware Reference, Rev A 2/2008
LED DS1The switching regulator is adjusted to output +3.3VDC ± 5% or better. LED DS1 lights
up when the regulator outputs +3.3V power. See “Power supply” on page 21 for
more information.
LED DS2LED DS2 lights up when the host system supplies power over the USB bus. This LED
indicates that the host platform has recognized the attachment of a USB peripheral
device on the USB bus. See “USB peripheral interface, J4” on page 23 for more
information.
Debug (signal)
breakout header
LEDs
Five LEDs are associated with the debug breakout header (J4):
DISABLE, DS3: Lights up when the W_DISABLE# signal is asserted.
RST, DS4: Lights up when the RESET# signal is asserted.
WAN, DS5: Reserved for future use.
LAN, DS6: Lights up when the module drives the LED_WLAN# signal.
PAN, DS7: Reserved for future use.
See “Debug breakout header, P21” on page 24 for more information.
Volt ag e mo n ito rThe development board provides a power supply voltage monitor and reset
generator. When the +3.3V regulated supply voltage drops below 2.93V, the reset
signal — RESET# — is asserted for a minimum of 140 msec. This signal is connected
to the Digi Connect Wi-Wave edge connector (pin 22), as well as to the debug
breakout header for monitoring.
Alternative
methods to trigger
RESET#
In addition to supply voltage monitoring, reset logic can be triggered in two other
ways. The RESET# signal is asserted when you do one of these actions:
Manually push SW1, a pushbutton reset switch on the development board
Pull low pin 15 on the JTAG breakout header, P20.
20Connect Wi-Wave Hardware Reference, Rev A 2/2008
The development board provides a 3.3VDC switching power supply. Either a bench
power supply or an AC wall adapter supplies input power to the development board.
The required input voltage range is 9–30V
DC
.
. . . . .
Input power jack, J3The input power jack, J3, is a barrel connector that accepts 9-30 VDC. The power
Input power
supply
jack is labeled J3 on the development board. This figure schematically represents
the power jack’s polarity:
The output current of this regulator is limited to 2.4 amps and the Digi Connect WiWave module draws no more than .750 amps. Using these values as a guideline, and
using an 80% efficiency for the switching regulator, the input power supply should
be rated to provide at least 3 watts of power.
Important:
The development board can use USB power as the power source for the
3.3V regulator. This is accomplished by simply connecting the USB
The USB Type B connector, J4, is the primary communications interface to the
development board. The USB bus is routed from the USB peripheral jack to the
appropriate module connector pins.
The debug breakout header’s primary purpose is to provide access to the
W_DISABLE# signal. The W_DISABLE# signal is typically used as a hardware means to
disable RF transmissions from the module without software intervention.
PinTypeSignalPinTypeSignal
1RsvdSIM_PWR2Monitor pt+3.3V_MC
3RsvdSIM_RST4Monitor ptLED_WWAN#
5RsvdSIM_CLK6Monitor ptGND
7RsvdSIM_Pin 48Monitor ptLED_WLAN#
9RsvdSIM_GND10Monitor ptGND
11RsvdSIM_VPP12Monitor ptLED_WPAN#
13RsvdSIM_DATA14Monitor ptGND
15RsvdSIM_Pin 816Monitor ptRESET#
17n/aNo connect18Monitor ptGND
19Monitor ptGND20InW_DISABLE#
W_DISABLE#
signal
24Connect Wi-Wave Hardware Reference, Rev A 2/2008
The active low W_DISABLE# signal is on pin 20 of the debug breakout header. GND
signals are positioned adjacent to the W_DISABLE# signal on pins 18 and 19. To
assert the W_DISABLE# signal to the module, place a jumper between either pins 18
As an alternative, you can drive this pin with a low voltage TTL or CMOS driver.
When asserted, W_DISABLE# lights the DISABLE LED, DS3.
U.FL and RP-SMA connectors
ABOUT THE DEVELOPMENT BOARD
U.FL and RP-SMA connectors
. . . . .
U.FL connectorsThe development board has two U.FL connectors that pair with two RP-SMA
connectors. U.FL connector P1 pairs with RP-SMA connector J1;U.FL connector P2
pairs with RP-SMA connector J2.
U.FL cablesThe development kit includes two U.FL-to-U.FL cables that can be used to connect
the module and development board. The number of cables used depends on
whether one antenna is used to transmit and receive or two antennas are used
(diversity receive).
Single antenna configuration: Connect one end of the U.FL cable to connector P1
on the development board and the other end of the cable to connector P1 on the
Digi Connect Wi-Wave module.
Dual antenna configuration: In addition to the connections outlined in the Single
antenna configuration, connect one end of the second U.FL cable to connector P2
www.digiembedded.com25
ABOUT THE DEVELOPMENT BOARD
U.FL and RP-SMA connectors
on the development board and the other end of the cable to connector P2 on the
Digi Connect Wi-Wave module.
RP-SMA
connectors
For more
information
RP-SMA Wi-Fi antennas are attached to the two RP-SMA connectors, J1 and J2.
Single antenna configuration: Attach an RP-SMA antenna to RP-SMA connector J1.
Dual antenna configuration: Attach RP-SMA antennas to both RP-SMA connectors J1
and J2.
For information about the antenna(s), see Chapter 3, “Using the Antenna.”
26Connect Wi-Wave Hardware Reference, Rev A 2/2008
Chapter 3:Using the Antenna
The Digi Connect Wi-Wave development board supports two types of antennas:
29000095 ANT, WHIP 2.4-2.5 GHz Dipole (2.0000)
29000146 ANT, WHIP 2.4 GHz Dipole 5 dBi (2.0000)
Attach the U.FL-to-U.FL cables, provided in the development kit, to both the
module and the development board. There are two cables included; whether you
use one cable or both depends on how you set up your antenna(s).
Be sure that the antenna you use complies with the regulatory requirements of your
region. In North America, for example, you can operate only with antennas
approved by Digi International, Inc., or antennas matching the specifications of
Digi-approved antennas.
Necessary
Conditions for
Integration
The following conditions are necessary for integration:
The antenna must be installed such that 20 cm is maintained between the
antenna and users for all installations.
The transmitter module may not be co-located with any other transmitter or
antenna.
The Module is approved using the FCC “unlicensed modular transmitter
approval” method; therefore, the module must be used with the originallyapproved antennas only.
As long as you meet these three conditions, further transmitter testing will not
be required. However, you are still responsible for testing your end-product
for any additional compliance requirements associated with this module
installation (e.g., digital device emissions, PC peripheral requirements, etc.).
Note: In the event that any of these conditions cannot be met (e.g., portable
configurations, co-location with another transmitter, or use of a different antenna),
then the FCC authorization is no longer considered valid, and you are unable to use
the FCC ID on the final product. In these circumstances, you will be responsible for
27
USING THE ANTENNA
re-evaluating the end product (including the transmitter) and obtaining a separate
FCC authorization.
Connect
Wi-Wave antenna
configurations
The Digi Connect Wi-Wave can transmit data or receive data, but not at the same
time.
Note: If only one antenna is used, it must be connected to Wi-Fi RP-SMA antenna
connector J1. This is the Digi Connect Wi-Wave's primary antenna.
28Connect Wi-Wave Hardware Reference, Rev A 2/2008
The module uses the same antennas to transmit and receive the 802.11b/g RF
signal. An antenna switch is required to isolate the transmit signal from the receive
signal. The antenna switch works by alternately connecting the antennas to either
the transceiver transmit output or the transceiver receive input. To support this
antenna sharing scheme, the module operates in half-duplex mode; receive and
transmit operations do not occur at the same time.
Antenna switchThe antenna switch is a digitally controlled 2.4 GHz, 50 ohm, multi-function solid
state switch, controlled by software.
The switch can handle >28dBm of signal on the transmit port. The insertion loss of
the antenna switch is <0.5dB and the receive to transmit port isolation is >23dB.
. . . . .
Antenna specifications: 2 dBi Dipole
Attributes
AttributeProperty
Frequency2.4~2.5 GHz
Power output2W
DB gain2 dBi
VSWR< or = 2.0
Dimension108.5 mm x 10.0 mm
Weight10.5g
Temperature rating-40°–+80° C
Part numberDG-ANT-20DP-BG
Dimensions
Note:
Dimensions are provided for reference purposes only. The actual antenna
might vary.
www.digiembedded.com29
USING THE ANTENNA
Antenna specifications: 2 dBi Dipole
.360
.125
R
(3.2)
3.500
(88.9)
3.300
(83.8)
(9.1)
90.0˚
.399
(10.1)
1.010
(25.4)
1.200
(30.5)
30Connect Wi-Wave Hardware Reference, Rev A 2/2008
USING THE ANTENNA
Antenna specifications: 2 dBi Dipole
. . . . .
Antenna strength
(radiation
pattern) diagram
This diagram shows the strength of the signal received by the whip antenna on both a
horizontal and vertical plane. The diagram shows the magnetic field when the
antenna is in a vertical position. The red solid line represents the horizontal plane
and the green dotted line represents the vertical plane. You can see in the
illustration that at 90 degrees, the signal strength is 0 (as expected).
The end user manual must include the following information in a prominent
location:
"IMPORTANT NOTE: To comply with FCC RF exposure compliance requirements, the
antenna used for this transmitter must be installed to provide a separation distance
of at least 20 cm from all persons and must not be co-located or operating in
conjunction with any other antenna or transmitter."
34Connect Wi-Wave Hardware Reference, Rev A 2/2008
The Digi Connect Wi-Wave module complies with RF exposure limits for humans as
called out in RSS-102. It is exempt from RF evaluation based on its operating
frequency of 2.4 GHz, and effective radiated power less than the three watt
requirement for a mobile device (>20 cm separation) operating at 2.4 GHz.
Safety statements
To avoid contact with electrical current:
Never install electrical wiring during an electrical storm.
IL
IH
OL
OH
<0.3*Vcc
<Vcc
<0.4V
<Vcc
Use a screwdriver and other tools with insulated handles.
Wear safety glasses or goggles.
Installation of inside wiring may bring you close to electrical wire, conduit,
terminals and other electrical facilities. Extreme caution must be used to avoid
electrical shock from such facilities. Avoid contact with all such facilities.
Protectors and grounding wire placed by the service provider must not be
connected to, removed, or modified by the customer.
Do not touch or move the antenna(s) while the unit is transmitting or receiving.
Do not hold any component containing a radio such that the antenna is very
close to or touching any exposed parts of the body, especially the face or eyes,
while transmitting.
Do not operate a portable transmitter near unshielded blasting caps or in an
explosive environment unless it is a type especially qualified for such use.
36Connect Wi-Wave Hardware Reference, Rev A 2/2008
Any external communications wiring you may install needs to be constructed to all
relevant electrical codes. In the United States, this is the National Electrical Code
Article 800. Contact a licensed electrician for details.
Module and development board dimensions
. . . . .
Module
dimensions
Note:
The measurements in this drawing are in inches.
www.digiembedded.com37
Module and development board dimensions
AREA REMOVED
1. 850
5. 000
3. 150
. 050" RAD
MA X
0
0
3. 000
2. 095
. 550
Development
board dimensions
Note:
The measurements in this drawing are in inches.
38Connect Wi-Wave Hardware Reference, Rev A 2/2008
The Digi Connect Wi-Wave products comply with the standards cited in this
section.
FCC Part 15 Class B
Radio Frequency Interface (RFI) (FCC 15.105)
The Digi Connect Wi-Wave embedded module has been tested and found to comply
with the limits for Class B digital devices pursuant to Part 15 Subpart B, of the FCC
rules. These limits are designed to provide reasonable protection against harmful
interference in a residential environment. This equipment generates, uses, and can
radiate radio frequency energy, and if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. 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 and correct the interference by one or more of the following
measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Labeling Requirements (FCC 15.19)
This device complies with Part 15 of FCC rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this
39
CERTIFICATIONS
FCC Part 15 Class B
device must accept any interference received, including interference that may
cause undesired operation.
If the FCC ID is not visible when installed inside another device, then the outside of
the device into which the module is installed must also display a label referring to
the enclosed module FCC ID. This exterior label can use wording such as the
following: Contains Transmitter Module FCC ID: MCQ-50M1380, IC: 1846A-50M1380.
Modifications (FCC 15.21)
Changes or modifications to this equipment not expressly approved by Digi may void
the user’s authority to operate this equipment.
Industry Canada
This digital apparatus does not exceed the Class B limits for radio noise emissions
from digital apparatus set out in the Radio Interference Regulations of the Canadian
Department of Communications.
Le present appareil numerique n’emet pas de bruits radioelectriques depassant les
limites applicables aux appareils numeriques de la class B prescrites dans le
Reglement sur le brouillage radioelectrique edicte par le ministere des
Communications du Canada.
40Connect Wi-Wave Hardware Reference, Rev A 2/2008
Declaration of Conformity
(In accordance with FCC Dockets 96-208 and 95-19)
Manufacturer’s Name:Digi International
Corporate Headquarters:11001 Bren Road East
Manufacturing Headquarters:10000 West 76th Street
Digi International declares, that the product:
Product Name:Digi Connect Wi-Wave
Model Numbers:50001380-01
CERTIFICATIONS
FCC Part 15 Class B
. . . . .
Minnetonka MN 55343
Eden Prairie MN 55344
to which this declaration relates, meets the requirements specified by the Federal
Communications Commission as detailed in the following specifications:
Part 15, Subpart B, for Class B equipment
FCC Docket 96-208 as it applies to Class B personal
Personal computers and peripherals
The product listed above has been tested at an External Test Laboratory certified
per FCC rules and has been found to meet the FCC, Part 15, Class B, Emission
Limits. Documentation is on file and available from the Digi International
Homologation Department.
www.digiembedded.com41
CERTIFICATIONS
FCC Part 15 Class B
International EMC Standards
The Digi Connect Wi-Wave meets the following standards:
Standards
EmissionsEN 55022:2006 Class B
EN 61000-3-2 and EN61000-3-3
EN 300 328 V1.6.1 (2004-11)
AS/NZS CISPR 22:2006
ICES-003, Class B
FCC Part 15 Subpart B Class B
FCC Part 15 Subpart C Section 15.247
(FCC ID: MCQ-50M1380)
IC RSS 210 Issue 6 and RSS GEN Issue 1
(IC: 1846A-50M1380)
ImmunityEN 55024
EN 301 489-17 V1.2.1: (2002-08)
SafetyUL 60950-1
ICE/EN 60950-1 (European Union)
CSA C22.2, No. 60950-1
42Connect Wi-Wave Hardware Reference, Rev A 2/2008