MWMII OPERATOR’S
MANUAL
Contents
1 Introduction ............................................................................................................................................... 1
2 Compliance Warnings and Cautions .......................................................................................................... 1
3 MWMII Features ........................................................................................................................................ 2
4 Block Diagram ............................................................................................................................................ 3
5 General Specifications ................................................................................................................................ 4
1 Introduction
MWMII (Masimo Wifi Module II) contains an Azureware AW-CM256SM radio module, which
incorporates the Broadcom BCM43455 radio chip. It offers IEEE 802.11 a/b/g/n WIFI with Bluetooth 4.2.
The Wifi radio uses a 50MHz SDIO interface and the Bluetooth radio uses a 3MBaud UART interface.
MWMII has 32.768 kHz Oscillator and 37.5 MHz crystal along with the u. Fl. connector. The radio module
is certified for use with the following two (external) trace antennas: Ethertronics 9000129 and
Ethertronics 1000672.
Bluetooth system is fully compliant to Bluetooth 4.2 and V2.1 that supports EDR of 2 Mbps and 3 Mbps
for data and audio communications. It uses Direct Sequence Spread Spectrum (DSSS), Orthogonal
Frequency Division Multiplexing (OFDM), BPSK, QPSK, CCK and QAM based modulation technologies.
2 Compliance Warnings and Cautions
Caution: Disposal of product - Comply with local laws in the disposal of the device and/or its accessories.
Caution: To minimize radio interference, other electrical equipment that emits radio frequency
transmissions should not be in close proximity to MWMII.
Note: This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
Note: This device complies with Industry Canada’s license-exempt RSSs of the Industry Canada Rules.
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.
Note: Operation in the band 5150-5250 MHz is only for indoor use to reduce the potential for harmful
interference to co-channel mobile satellite systems.
Note: 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.
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Note: In accordance with international telecommunication requirements, the frequency band of 2.4 GHz
and 5.15 to 5.25 GHz is only for indoor usage to reduce potential for harmful interference to co-channel
mobile satellite systems.
Note: To satisfy RF exposure requirements, this device and its antenna must operate with 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.
Note: Change or modifications that are not expressly approved by the manufacturer could void the
user’s authority to operate the equipment.
3 MWMII Features
The MWMII board includes the following features:
Bluetooth HCI module
Supports Bluetooth specification V4.2
WCS (Wireless Coexistence System)
Enhanced Data Rate (EDR) compliant for both 2 Mbps and 3Mbps supported
Full speed operation with Piconet and Scatternet support
High speed UART and PCM for Bluetooth
Dual-band 2.4 GHz and 5 GHz 802.11 a/b/g/n
www.masimo.com 2
4 Block Diagram
www.masimo.com 3
5 General Specifications
Model Name
MWMII
Radio modes
IEEE 802.11 a/b/b/n, WiFi compliant / Bluetooth 4.2 standard
Host Interface
Wi-Fi: SDIO, BT: UART
Major Chipset
BCM43455
Dimension
26 mm X 16 mm X 2.4 mm
Frequency Range
Wi-Fi: 2.4 GHz ISM Bands 2.412 – 2.472 GHz
5.15-5.25 GHz (FCC UNII-low band) for US/Canada and Europe
5.25-5.35 GHz (FCC UNII-middle band) for US/Canada and Europe
5.47-5.725 GHz for Europe
5.725-5.825 GHz (FCC UNII-high band) for US/Canada
BT: 2402MHz~2483MHz
Electrical rating
3.2 VDC – 4.8 VDC; Typical: 3.6 VDC
Drivers
WiFi: 7.45.100.7
Bluetooth: 003.001.025.0143.0000
Duty Cycle1
Mode
Band
Max Data Rate (Mbps)
Duty Cycle (%)
2.4 GHz
802.11b
11
21.8
Wifi
802.11g
54
4.4
802.11n
72
3.3
802.11n
150
1.6
5 GHz
802.11a
54
4.4
Wifi
802.11n
72.2
3.3
802.11n
150
1.6
2.4 GHz
BT
3
100.0
BT/BLE
BLE
1
50.0
FCC ID
VKF-MWM2
FCC Rules
15.207, 15.209, 15.247, and 15.407
Output Power:
Mode
Band
Bandwidth
(MHz)
Tx Power Setting2
Max Power (dBm)
Wifi 2.4
GHz
b
20
17
17.1
g 20
14
12.1
n 20
15
14.5
n 40
10
10.8
BT
N/A
0
8.2 BLE
N/A
0
4.75
Wifi 5
GHz
a
20
20
13.934
n 20
5.2 GHz: 20
5.3/5.6/5.8 GHz: 21
5.2 GHz: 13.695
5.3/5.6/5.8 GHz:14.886
n 40
18
5.2 GHz: 13.621
5.3/5.6/5.8 GHz: 13.695
1
2
This is the maximum duty cycle permitted.
This is the maximum power setting allowed. This is controlled through the wl commands.
www.masimo.com 4
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