Cambridge Executive BC188-X Wi-Fi Module User Manual BC188 DATASHT 004 2x

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BC188-DATASHT
BC188 Datasheet
Key Specifications

Low Power Wi-Fi module with Microcontroller and Antenna

Cortex-M4F CPU with integrated 512KB SRAM, 320KB ROM, 8Mbit Flash

Ultra Low Power modes (Deep Sleep, Standby)

IEE 802.11n/g/b, 1x1 SISO, 2.4 GHz and HT20

Antenna Diversity

Embedded Stack and TCP/IP, Simple UART interface

3xI2S, 3xSPI, 2xI2C, 3xUART, QSPI, Up to 35 GPIOS, 2 x Wake

2 Step ADC with PGA, 2 Channel or 1 Diff channel DAC

Small form factor (22mm x 15.5mm x 1.5mm)
Description
Applications

White Goods/Appliances

Consumer Devices and Accessories

Home Automation

Personal Health Devices

IoT and Wearables

Commercial and Industrial
BC188 is a highly flexible, low power, small form
factor self contained Wi-Fi module. It comes
preloaded with BlueCreation Melody-Wi-Fi
software, and is ideal for developers who want to
quickly and cost effectively integrate Wi-Fi
functionality into their products.
BlueCreation. St John’s Innovation Centre Cowley Road Cambridge CB4 0WS United Kingdom
t. +44 (0)1223 420 252
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BC188-DATASHT
BC188 Datasheet
General Specifications
Specifications
Description
Wi-Fi
802.11 b.g.n.d.e.h.i.k.r.w
Interfaces
UART, AIO, GPIO, SPI, PCM, I2S, SPDIF, I2C
Size
22mm x 15.5mm x 1.5mm
Weight
0.9g
Wi-Fi Specifications
Specifications
Description
Encryption
WEP 64 and 128 bit encryption (WPA), AES-CCMP, WAPI
Frequency Range
2400 to 2500 MHz
Maximum Data Rate
72.2Mbps, 20 MHz channels
Tx output saturation
26dBm
Rx input IP3
-15dBm
Phase Noise
-103dBc/Hz
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BC188-DATASHT
BC188 Datasheet
Audio Specifications
Specifications
Description
DAC output range
0.12V to 1.6V
Common ADC Input
0.9V (Typical)
Electric Specifications
Specifications
Description
Supply Voltage
3.0V to 3.6 V DC (Supports Li Ion battery voltage range)
Typical Current (Sleep)
36µA
Typical Current
(PowerSave)
0.4mA
Operating Temperature
-40°C to 85°C
BlueCreation. St John’s Innovation Centre Cowley Road Cambridge CB4 0WS United Kingdom
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BC188-DATASHT
BC188 Datasheet
Module Footprint
BlueCreation. St John’s Innovation Centre Cowley Road Cambridge CB4 0WS United Kingdom
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BC188-DATASHT
BC188 Datasheet
PIN Description
No
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
Pin Name
GND
ANT_CTRL1
ANT_CTRL0
GND
RF_EXT
GND
UART_CTS/GPIO_0
UART_RTS/GPIO_1
UART_TX/GPIO_2
UART_RX/GPIO_3
VDDIO_0
VDDIO_1
GND
GND
GND
GPIO_16
GND
GND
GPIO23
GPIO22
GPIO24
GND
GND
GND
VBAT
RST#
GPIO25
GPIO26
GND
QSPI_D1/GPIO31
QSPI_CLK/GPIO29
VDDIO_2
GND
QSPI_D2/GPIO32
QSPI_D3/GPIO33
QSPI_D0/GPIO30
QSPI_SSN/GPIO28
GPIO27
Primary Function
GND
Output ANT_CTRL1
Output ANT_CTRL0
GND
External RF Connection
GND
UART Clear To Send via
UART Ready To Send via
UART Transmit via
UART Receive via
Supply input for GPIOs
Supply input for GPIO16
GND
GND
GND
General Purpose IO 16
GND
GND
General Purpose IO 23
General Purpose IO 22
General Purpose IO 24
GND
GND
GND
Battery Supply Input
Module Reset (Active Low)
XTAL_32k CLK IN
XTAL_32k CLK OUT
GND
Flash SPI Data I/O 1
Flash SPI Clock
Supply input for QSPI I/O
GND
Flash SPI Data I/O 2
Flash SPI Data I/O 3
Flash SPI Data I/O 0
Flash SPI Chip Select
General Purpose IO 27
Secondary Function
GND
General Purpose IO44
General Purpose IO 45
GND
NA
GND
GPIO_0
GPIO_1
GPIO_2
GPIO_3
NA
NA
GND
GND
GND
CON5 Configuration Pin 5
GND
GND
Wake Up 1
Wake Up 0
General Purpose Timer 1 Channel 5
GND
GND
GND
NA
NA
GPIO25
GPIO26
GND
GPIO31
GPIO29
NA
GND
GPIO32
GPIO33
GPIO30
GPIO28
CON4 Configuration Pin 4
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BC188-DATASHT
BC188 Datasheet
No
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
Pin Name
GND
GND
GND
GND
VDDIO_3
GPIO40
GPIO39
GND
GPIO41
GPIO42
GPIO43
GPIO46
GPIO47
GPIO48
GPIO49
GPIO7
GPIO6
GPIO5
GPIO4
GPIO8
GPIO9
GPIO10
3V3
GND
Pin Type
GND
GND
GND
GND
Supply input for GPIO
General Purpose IO 40
General Purpose IO 39
GND
General Purpose IO 41
General Purpose IO 42
General Purpose IO 43
General Purpose IO 46
General Purpose IO 47
General Purpose IO 48
General Purpose IO 49
General Purpose IO 7
General Purpose IO 6
General Purpose IO 5
General Purpose IO 4
General Purpose IO 8
General Purpose IO 9
General Purpose IO 10
3V3 Supply Input
GND
Pin Description
GND
GND
GND
GND
NA
NA
General Purpose Timer 3 Clock Input
GND
NA
NA
NA
NA
NA
NA
NA
JTAG Test Clock
JTAG Test Data Output
I2C0_SCL
I2C0_SDA
JTAG Test Mode State
JTAG Test Data Input
JTAG Test Reset (Active Low)
NA
GND
Notes
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BC188-DATASHT
BC188 Datasheet
Hardware Design Guideline
Application Schematic
Absolute Maximum**
Net
Minimum
Typical
Maximum
VBAT
3.0V*
3.3V
3.60V
3.63V
3V3
2.97V
3.3V
3.63V
4.00V
VDDIO_0
2.97V
3.3V
3.60V
3.63V
VDDIO_1
2.97V
3.3V
3.60V
4.00V
VDDIO_2
2.97V
3.3V
3.60V
4.00V
2.97V
3.3V
3.60V
VDDIO_3
3.63V
*This is the minimum voltage allowed to enable the module in the boot modes described below.
**Operation above this level of voltage may damage the device.
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BC188-DATASHT
BC188 Datasheet
Boot Modes
All supplies (VBAT Pin 25, 3V3 Pin 61 and VDDIO Pins 11,12, 32 & 43) should be applied simultaneously. No digital
pins (GPIO, UART, I2C etc.) should be powered externally without first applying VDDIO_X.
The entire module is in a reset state during power on when, internal PMU detection circuit detects the voltage rising on
VBAT.
RESET Mode
The Module is reset by applying a minimum of a 80us active low pulse to RST# (Pin26). An internal PMU detection
circuit detects when RST# is pulled low and powers on when RST# >1.25V. Pulling RST# low resets the entire module.
Power Down Modes
Several power down modes are supported
GPIOs
Unused PIOs should be left floating.
UART
The BC188 is controlled by GPIOs. This can be configured. If GPIO control is not used, these GPIOs should be left
floating. The UART by default does not use RTS/CTS flow control. If the users do not expect to use it, these lines should
be left floating.
EXT_RF
If the External RF Port is not used terminate with a 51Ohm 1% resistor to ground.
The external RF port is internally DC Blocked and can be used as a external RF connection for test purposes or as an
additional antenna where higher gain or range is required than that supported by the internal antenna on the module.
Digital Pin States on RESET or after Power Up
The following table shows the Digital Pin States on RESET or after power up.
Pin Name / Group
UART_RX
UART_TX
UART_CTS
UART_RTS
GPIOX
RST#
I/O Type
Digital bi-directional with PU
Digital bi-directional with PU
Digital bi-directional with PD
Digital bi-directional with PU
Digital bi-directional with PU
Digital input with PU
State after Power Up or RESET
Strong PU
Weak PU
Weak PD
Weak PU
Weak PU
Strong PU
PD = Pull Down, PU = Pull Up
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BC188-DATASHT
BC188 Datasheet
Solder Reflow Profile
The solder profile is described below.
Zone A: Preheat: This raises the temperature at a controlled rate, typically 0.5 - 2C/s. This will preheat the component to
120°C to 150°C to distribute the heat uniformly to the PCB.
Zone B: Equilibrium1: In this zone, the flux becomes soft and uniformly spreads solder particles over the PCB board,
preventing re-oxidisation. The recommended temperature for this zone is 150°C to 200°C for 60s to 120s.
Zone C: Equilibrium2: This is optional and in order to resolve the upright component issue. Temperature is 210°C to
217°C for 20s to 30s.
Zone D: Reflow zone: The temperature should be high enough to avoid wetting but low enough to avoid component
deterioration. The recommended peak temperature is 230°C to 250°C. The soldering time should be 30s to 90s when
the temperature is above 217°C.
Zone E: Cooling: The cooling rate should be fast to keep the solder grains small which will give a longer lasting joint. A
typical cooling rate is 4°C/s.
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BC188-DATASHT
BC188 Datasheet
Regulatory Certifications
BC188 is delivered with FCC, CE and IC certifications. This allows to integrate the module in an end product without
the need to obtain subsequent and separate approvals from these regulatory agencies. This is valid in the case no other
intentional or un-intentional radiator components are incorporated into the product. Without these certification, an end
product cannot be marketed in the relevant regions.
United States - FCC

In case no other intentional or un-intentional radiator is incorporated, the BC188's FCC certification allows users to
integrate the module into products without the need to obtain subsequent and separate approval.

The BC188 was approved as "intentional transmitter radio module" by the United States' Federal Communications
Commission (FCC) with accordance to CFR47 Telecommunications Part 15, Subpart C, section 212. This
certification is applicable in all the states in the United States.

The certification allows products to be listed in the NRTL (National Recognized Test Laboratory) as appointed by
OSHA (Occupational Safety and Health Administration).
Labelling

The BC188 has been labelled with its own FCC ID number. In order to extend the certification granted to the BC188,
its FCC ID number must be displayed on the finished product in which the module is integrated. The following
wording should be used "Contains Transmitter Module FCC ID: SSSBC188-X “or “Contains FCC ID: SSSBC188X”.

The user-manual for any product in which the BC188 is integrated in must include the following statements:
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. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, 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 to 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.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this
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BC188-DATASHT
BC188 Datasheet
device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
To satisfy FCC RF Exposure requirements for mobile and base station transmission devices, a separation distance of
70mm or more should be maintained between the antenna of this device and persons during operation. To ensure
compliance, operation at closer than this distance is not recommended. The antenna(s) used for this transmitter must
not be co-located or operating in conjunction with any other antenna or transmitter.
For further information regarding the FCC certification requirements please review the following websites:
Federal Communications Commission (FCC):
http://www.fcc.gov
FCC Office of Engineering and Technology (OET) Laboratory Division Knowledge Database (KDB):
http://apps.fcc.gov/oetcf/kdb/index.cfm
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t. +44 (0)1223 420 252
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11
BC188-DATASHT
BC188 Datasheet
Europe - CE and RoHS Marking

In case no other intentional or un-intentional radiator is incorporated, the BC188's CE marking certification allows
users to integrate the module into products without the need to obtain subsequent and separate CE approval.

The BC188 has been tested and granted approval as R&TTE Directive product under the 1999/5/EC Essential
Requirements for Health and Safety (Article (3.1(a)), Electromagnetic Compatibility, (EMC) (Article 3.1(b)), and
Radio (Article 3.2). A Notified Body Opinion has been issued.

The BC188 has also been tested and granted approval under the directive on the restriction of the use of certain
hazardous substances in electrical and electronic equipment 2002/95/EC (commonly referred to as the Restriction of
Hazardous Substances Directive or RoHS). This certification ensures the module is environmental safe and free from
hazardous substances (including Lead).

Both certifications are applicable in all the 27 countries of the European Economic Area.
Labelling and Documentation

Products complying with all relevant essential requirements shall bear the CE conformity marking accompanied by
the identification number XXX-XXX

The RoHS certification does not dictate any specific product labelling. However, we recommend marking the product
with a "RoHS Compliant" statement.

R&TTE Directive requires a manufacturer to establish technical documentation. It must be kept by the manufacturer
or his authorised representative in the EU for at least 10 years after the last product has been manufactured. The
documentation must cover:

a general description of the product,

conceptual design and manufacturing drawings and schemes of components, sub-assemblies, circuits and other
design documentation,

descriptions and explanations necessary for the understanding of said drawings and schemes and the operation
of the product,

a list of the standards referred to in Article 5, applied in full or in part, and descriptions and explanations of the
solutions adopted to meet the essential requirements of the Directive where such standards

results of design calculations made, examinations carried out, etc.,

test reports.
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BC188-DATASHT
BC188 Datasheet

Test reports must include the following table containing the BC188 tests:
Certification

Standards
Safety
EN 609501:2006+A11:2009+A1:2010
Health
EN 50371:2002-03
EMC
EN 301 489-1 V1.8.1 (2008-04); EN
301 489-17 V2.1.1 (2009-05)
Radio
EN 300 328 V1.7.1 (2006-10)
Article
Laboratory
Report
Number
Date
(3.1(a))
(3.1(b))
(3.2)
For further labelling and CE marking requirements please review the R&TTE Compliance Association Technical
Guidance: http://rtteca.com/
For further information regarding the R&TTE certification requirements please review the following websites:
Radio and Telecommunications Terminal Equipment (R&TTE):
http://ec.europa.eu/enterprise/rtte/index_en.htm
European Conference of Postal and Telecommunications Administrations (CEPT):
http://www.cept.org
European Telecommunications Standards Institute (ETSI):
http://www.etsi.org
European Radio Communications Office (ERO):
http://www.ero.dk
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t. +44 (0)1223 420 252
e. info@blue-creation.com
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BC188-DATASHT
BC188 Datasheet
Canada - IC

In case no other intentional or un-intentional radiator is incorporated, the BC188's IC certification allows users to
integrate the module into products without the need to obtain subsequent and separate approval.

The BC188 has been tested and granted approval under Industry Canada (IC) Radio Standards Specification (RSS)
RSS-210, RSSGen and ICES-003. This certification is applicable in Canada.
Labelling and Documentation

The BC188 has been labelled with its own IC ID number. In order to extend the certification granted to the BC188, its
CE ID number must be displayed on the finished product in which the module is integrated. The following wording
should be used "Contains Transmitter Module IC: XXX"

The user-manual for any product in which the BC188 is integrated in must include the following statements:
This device complies with Industry Canada license exempt RSS standard(s). Operation is subject to the following two
conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including
interference that may cause undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence.
L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2)
l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en
compromettre le fonctionnement.
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum
(or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users,
the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more
than that necessary for successful communication.
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne
d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les
risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de
sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement
d'une communication satisfaisante
Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment
should be installed and operated with minimum distance 45mm between the radiator & your body.
Déclaration d'exposition aux radiations:
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BC188-DATASHT
BC188 Datasheet
Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies pour un environnement non
contrôlé. Cet équipement doit être installé et utilisé avec un minimum de 45mm de distance entre la source de
rayonnement et votre corps.
 For further labelling and IC marking requirements please review the Industry Canada website: http://www.ic.gc.ca/
Notes:

Changes or modifications that are made to the module circuitry can hinder the certification

Installers must comply with all of the instructions provided by the certification agency, which indicate
installation and/or operating conditions necessary for compliance

It is important to note that the finished product is required to comply with all applicable authorizations
regulations and requirement that is not associated with the BC188 module, including non-intentional
transmitting modules and other intentionally transmitting modules.

The previous section represents BlueCreation interpretation of the salient issues of the certifications. For full
details of the certification please refer to the local agencies' websites. Where there is any difference between this
document and the local agencies' website, the subsequent should be followed.

At the time of writing this document FCC and CE certification were still processed by the relevant authorities.
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BC188-DATASHT
BC188 Datasheet
WLAN
Overview
The BC188 integrates a highly integrated, single-band (2.4 GHz) IEEE 802.11n 1x1 WLAN subsystem, specifically
designed to support next generation, high throughput data rates.
The subsystem provides the combined functions of CPU, memory, Medium Access Controller (MAC), Direct Sequence
Spread Spectrum (DSSS) and Orthogonal Frequency Division Multiplexing (OFDM) baseband modulation, direct
conversion WLAN RF radio, and encryption. For security, the 802.11i security is supported through several protocols.
Features








1x1 SISO, 2.4 GHz, HT20 operation
Antenna diversity
CMOS and low-swing sine wave input clock
Low power with deep sleep and standby modes
Pre-regulated supplies
Integrated T/R switch, PA, and LNA
Optional 802.11n features
One Time Programmable (OTP) memory to eliminate need for external EEPROM
WLAN MAC











Simultaneous peer-to-peer and infrastructure Modes
RTS/CTS for operation under DCF
Hardware filtering of 32 multicast addresses
On-chip Tx and Rx FIFO for maximum throughput
Open System and Shared Key Authentication services
A-MPDU Rx (de-aggregation) and Tx (aggregation)
Reduced Inter-Frame Spacing (RIFS) receive
Management information base counters
Radio resource measurement counters
Quality of service queues
Block acknowledgment extension
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BC188-DATASHT
BC188 Datasheet




Multiple-BSSID and Multiple-Station operation
Transmit rate adaptation
Transmit power control
Long and short preamble generation on a frame-by-frame basis for 802.11b frames
WLAN Baseband








802.11n 1x1 SISO
Backward compatibility with legacy 802.11g/b technology
PHY data rates up to 72.2 Mbps
20 MHz bandwidth/channel
Modulation and Coding Scheme (MCS)-MCS 0~7
Radio resource measurement
Optional 802.11n SISO features




1 spatial stream STBC reception and transmission
Short guard interval
RIFS on receive path 802.11n packets
802.11n greenfield Tx/Rx
Power save features
WLAN Radio
The BC188 direct conversion WLAN RF radio integrates all the necessary functions for transmit and receive operation.
Features Include:



Integrated direct-conversion radio
20 MHz channel bandwidth
Integrated T/R switch, PA, and LNA.
WLAN Rx Path
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BC188-DATASHT
BC188 Datasheet



Direct conversion architecture eliminates need for external SAW filter
On-chip gain selectable LNA with optimized noise figure and power consumption
High dynamic range AGC function in receive mode
WLAN Tx Path


Integrated power amplifier with power control
Optimized Tx gain distribution for linearity and noise performance
WLAN Local Oscillator


Fractional-N for multiple reference clock support
Fine channel step
Channel Frequencies Supported
20 MHz Channels
Channel
Frequency (GHz
2.412
2.417
2.422
2.427
2.432
2.437
2.442
2.447
2.452
10
2.457
11
2.462
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BC188-DATASHT
BC188 Datasheet
12
2.467
13
2.472
WLAN Encryption





WEP 64- and 128-bit encryption with hardware TKIP processing (WPA)
AES-CCMP hardware implementation as part of 802.11i security standard (WPA2)
Enhanced AES engine performance
AES-Cipher-Based Message Authentication Code (CMAC) as part of the 802.11w security standard
WLAN Authentication and Privacy Infrastructure (WAPI)
Ordering Information
Part number BC188
Order number
Description
BC188
WiFi Module with integrated PCB Antenna
BC188-DISKIT-001
Development kit for the BC188 module
General Notes
BlueCreation. St John’s Innovation Centre Cowley Road Cambridge CB4 0WS United Kingdom
t. +44 (0)1223 420 252
e. info@blue-creation.com
www.blue-creation.com
19
BC188-DATASHT
BC188 Datasheet

BlueCreation's products are not authorised for use in life-support or safety-critical applications. Use in such
applications is done at the sole discretion of the customer. BlueCreation will not warrant the use of its devices in such
applications.

While every care has been taken to ensure the accuracy of the contents of this document, BlueCreation cannot accept
responsibility for any errors. BlueCreation reserves the right to make modifications, corrections and any other changes
to its products at any time. Customers should obtain the latest information before placing orders.

BlueCreation, other products, services and names used in this document may have been trademarked by their
respective owners. The publication of this information does not imply that any license is granted under any patent or
other rights owned by BlueCreation.

Refer to www.bluecreation.com for more information. BlueCreation® is a trading name for Cambridge Executive
Limited.
BlueCreation. St John’s Innovation Centre Cowley Road Cambridge CB4 0WS United Kingdom
t. +44 (0)1223 420 252
e. info@blue-creation.com
www.blue-creation.com
20

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