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Document Revision
Document number: 5111811
Release: Mar 12, 2015 14:37
Document version: 13

Table of contents

Abstract

The wireless LAN modules from connectBlue are industrial strength, low power modules, for IEEE 802.11a,b,g,n networks aimed at embedded, mobile, security, and industrial applications. They contains all necessary functions for a complete and efficient Wireless LAN integration; MAC/base-band, dual-band radio front-end, amplifiers, and antenna switches.
The modules are radio type approved for Europe and has an unlicensed modular transmitter approval for US (FCC) and Canada (IC).

This electrical & mechanical data sheet is applicable the following wireless LAN modules from connectBlue:

  • cB-OWL221a (High speed SPI host interface)
  • cB-OWL222a (SDIO v2.0 host interface)

Introduction

The IEEE 802.11a,b,g,n OEM Modules from connectBlue has been developed for integration in industrial devices. The modules are providing state of the art low power features, compatibility, robustness, and reliability. The modules minimizes the work needed to implement IEEE 802.11 in a device as it provides, together with the driver package, all software, hardware, type approval, EMC certification etc. It is developed for reliable, high demanding industrial devices and applications and delivers high performance. The connectBlue wireless LAN modules are available in different versions (see #Product variants).
The wireless LAN modules are complete IEEE 802.11 implementations. Host drivers for common operation systems, such as Linux and WinCE, are available. The IEEE 802.11 modules has small form factors and the interface layout is the same as the Bluetooth and IEEE 802.15.4 modules from connectBlue, which enables customers to prepare their device for both wireless LAN, IEEE 802.15.4, and Bluetooth.

Key features

  • Dual-band operation (IEEE 802.11-2007, a,b,g, incl. single stream IEEE 802.11n)
  • WEP, AES, and CRC-32 hardware accelerators
  • WPA and WPA2 support
  • SDIO or SPI host interface
  • Quality of Service: 802.11e and WMM
  • Ad-hoc and infrastructure mode
  • Software driver available or adaptable for any device
  • Bluetooth co-location with PTA (Packet Traffic Arbitration) support
  • Radio type approved for Europe
  • Unlicensed Modular Transmitter Approval for US (FCC) and Canada (IC)
  • Radio type approved for Japan (2.4 GHz band only)
  • Compliant with EMC standards
  • Industrial temperature range -30 to +85 °C
  • Support for low power modes
  • Compatible with connectBlue Bluetooth and IEEE 802.15.4 modules
  • Internal or external antenna
  • Receive diversity

 

Product variants

This Electrical and Mechanical datasheet contains information about the variants of wireless LAN modules based on PCB cB-0926-02 and cB-0926-03. (see table below)

Product name

Regulatory ID
FCC ID
IC ID
MIC ID

Description

cB-OWL221ai-02

cB-0926-02
PVH0926
5325A-0926
204-310003

IEEE802.11abgn LAN module with internal antenna, board-to-board connector, pin-list, High-speed SPI host interface

cB-OWL221ai-04

cB-0926-02
PVH0926
5325A-0926
204-310003

IEEE802.11abgn LAN module with internal antenna, board-to-board connector, no pin-list, High-speed SPI host interface

cB-OWL221ax-02

cB-0926-02
PVH0926
5325A-0926
204-310003

IEEE802.11abgn LAN module with dual external antenna U.FL. connectors, board-to-board connector, pin-list, High-speed SPI host interface

cB-OWL221ax-04

cB-0926-02
PVH0926
5325A-0926
204-310003

IEEE802.11abgn LAN module with dual external antenna U.FL. connectors, board-to-board connector, no pin-list, High-speed SPI host interface

cB-OWL222ai-02

cB-0926-03
PVH0926
5325A-0926
204-310003

IEEE802.11abgn LAN module with internal antenna, board-to-board connector, pin-list, SDIO v2.0 host interface

cB-OWL222ai-04

cB-0926-03
PVH0926
5325A-0926
204-310003

IEEE802.11abgn LAN module with internal antenna, board-to-board connector, no pin-list, SDIO v2.0 host interface

cB-OWL222ax-02

cB-0926-03
PVH0926
5325A-0926
204-310003

IEEE802.11abgn LAN module with dual external antenna U.FL. connectors, board-to-board connector, pin-list, SDIO v2.0 host interface

cB-OWL222ax-04

cB-0926-03
PVH0926
5325A-0926
204-310003

IEEE802.11abgn LAN module with dual external antenna U.FL. connectors, board-to-board connector, no pin-list, SDIO v2.0 host interface

Block diagram

block diagram

Electrical interface and connectors

Overview

This section describes the signals available on the module interface connectors. There are two ways to connect to the Wireless LAN module:

  • Via the 2 x 20-pin 1mm pitch board-to-board (one piece part) connectors J2 and J3. The J2 and J3 connectors exist on the module only as compression pads. These pads mates with the carrier board one-piece part connector. For more information see sections J2 Connector Description and J3 Connector Description.
  • Via the 2 x 10-pin 2mm pitch pin header connector J1. For more information see section J1 Connector Description.

Host interfaces

Modules comes with either SPI or SDIO host interface.

  • cB-OWL221a - SPI host interface
  • cB-OWL222a - SDIO host interface

SDIO

  • version 2.0 compatible
  • supports SPI, 1-bit, and 4-bit SDIO modes
  • Operation speed up to maximum clock speed of 50MHz

SPI

  • Operation up to maximum clock speed of 75MHz
  • SPI mode 0 and 3

 

Pin numbering

Primary side connectors

  • J1 is the 2 x 10 pin header, 2 mm pitch located on the primary side of the module.
  • A1 is the internal antenna.
  • J4 and J5 are U.FL connectors for external antennas. J4 is the primary antenna connector and J5 the auxiliary antenna connector.

 

 

Secondary side connectors

  • J2 and J3 are the connectBlue board to board connector. The layout of the connector is compatible with most OEM serial port adapters from connectBlue.

 

Pin Description

J1 connect description

Pin
nr

SPI
function

SDIO
function

Signal
level

Type

Description

1, 2

VSS

VSS

Ground

Power

Ground (0 V)

3, 4

VDD

VDD

3.3 V

Power

Supply voltage (1)

3.3 - 4.2 VDC @ tamb ≤ +85 °C

3.3 - 5.5 VDC @ tamb ≤ +75 °C

5-9, 12

-

-

-

-

Reserved, do not connect (1)

10

RESET

RESET

CMOS

I

Active low, Must be driven by open drain.
Internal pull-up 15kOhm. (1) 

11

-

DATA2

CMOS

-
I/O

SPI: Reserved, do not connect. (1)
SDIO: Data line 2 (1)

13

MOSI

CMD

CMOS

I
I/O

SPI: Slave Input (1)
SDIO: Command line (1)

14

CS0-n

DATA3

CMOS

I
I/O

SPI: Chip Select. (1)
SDIO: Data line 3 (1)

15

VDD

VDD

3.3 V

Power

Supply voltage (1)

3.3 - 4.2 VDC @ tamb ≤ +85 °C

3.3 - 5.5 VDC @ tamb ≤ +75 °C 

16, 17

VSS

VSS

GND

Power

Ground (0 V) (1)

18

CLK

CLK

CMOS

I
I

SPI: Clock input, max clock frequency 80 MHz (1)
SDIO: Clock input, max clock frequency 50 MHz (1)

19

IRQ

DATA1

CMOS

O
I/O

SPI: Interrupt signal (1),
SDIO: Data line 1 (1),

20

MISO

DATA0

CMOS

O
I/O

SPI: Slave Output, 3-state active when CS0-n=low(1)
SDIO: Data line 0 (1)

(1) To remain compatible, please check the datasheet for other connectBlue products if using this pin.
CMOS signal characteristics: - 0.3 V < VIL < 0.8 V, 2 < VIH < 3.6 V, VOL < 0.4 V, VOH > 2.4 VJ2 connector description

 

Pin
nr

SPI
function

SDIO
function

Signal
level

Type

Description

1, 2

VSS

VSS

GND

Power

Ground (0 V)

3, 4

VDD

VDD

3.3 V

Power

Supply voltage

3.3 - 4.2 VDC @ tamb ≤ +85 °C

3.3 - 5.5 VDC @ tamb ≤ +75 °C

5 - 15

-

-

-

-

Reserved, do not connect (1)

16

UART-TxD

UART-TxD

CMOS

O

Transmit Data,debug UART

17

-

-

-

-

Reserved, do not connect (1)

18

UART-RxD

UART-RxD

CMOS

I

Receive Data, debug UART

19 - 20

-

-

-

-

Reserved, do not connect (1)

(1). To remain compatible, please check the datasheet for other connectBlue products if using this pin.
CMOS signal characteristics: - 0.3 V < VIL < 0.8 V, 2 < VIH < 3.6 V, VOL < 0.4 V, VOH > 2.4 V

 

J3 Connector Description

Pin
nr

SPI
function

SDIO
function

Signal
level

Type

Description

1-4

-

-

-

-

Reserved, do not connect (1)

5

-

DATA2

CMOS

-
I/O

SPI: Reserved, do not connect (1)
SDIO: Data line 2 (1)

6

CS0-n

DATA3

CMOS

I
I/O

SPI: Chip Select (1)
SDIO: Data line 3 (1)

7

MOSI

CMD

CMOS

I
I

SPI: Slave Input (1)
SDIO: Command line (1)

8

VSS

VSS

GND

Power

Ground (0 V) (1)

9-10

-

-

-

-

Reserved, do not connect (1)

11

CLK

CLK

CMOS

I
I

SPI: Clock input, max clock frequency 80 MHz (1)
SDIO: Clock input, max clock frequency 50 MHz (1)

12

VSS

VSS

GND

Power

Ground (0 V) (1)

13

MISO

DATA0

CMOS

O
I/O

SPI: Slave Output, 3-state active when CS0-n=low(1)
SDIO: Data line 0 (1)

14

IRQ

DATA1

CMOS

O
I/O

SPI: Interrupt signal(1)
SDIO: Data line 1(1)

15

PRI

PRI

CMOS

I

Bluetooth co-existence interface:
BT-high priority traffic indicator

16

BT

BT

CMOS

I

Bluetooth co-existence interface: BT-arbitration signal

17

WL

WL

CMOS

O

Bluetooth co-existence interface: WLAN arbitration signal

18

RX-IND

RX-IND

CMOS

O

Bluetooth co-existence interface: WLAN receive indicator

19

RESET

RESET

CMOS

I

Active low, Must be driven by open drain.
Internal pull-up 15 kOhm.

20----Reserved, do not connect (1)

(1). To remain compatible, please check the datasheet for other connectBlue products if using this pin.
CMOS signal characteristics: - 0.3 V < VIL < 0.8 V, 2 < VIH < 3.6 V, VOL < 0.4 V, VOH > 2.4 V

J4 Primary External Antenna Connector

J4 is the primary external antenna connector. It is used for both transmit and receive. The port impedance to match is 50 Ohm.

 

Pin name

Function

Signal level

Type

Description

1

Main antenna

RF

I/O

Primary external antenna port (50 Ohm)

 

 

This connector is only available on the cB-OWL221ax and cB-OWL222ax.

 

 

J5 Auxiliary External Antenna Connector

J5 is the auxiliary external antenna connector. It is used only for receiving and if the unit is configured for diversity mode. The unit never transmits RF through this antenna connector. The port impedance to match is 50 Ohm.

 

Pin name

Function

Signal level

Type

Description

1

Auxiliary antenna

RF

I/O

Auxiliary external antenna port (50 Ohm)

 

 

This connector is only available on the cB-OWL221ax and cB-OWL222ax.

Electrical characteristics

The OWL22x modules are designed to be fully interchangeable with the connectBlue OWLAN211g and OWLAN211b product ranges. Please note that even though the electrical and mechanical properties are compatible you still might need to update the host driver software.

Power supply

Read the safety notes in section Guidelines for Efficient and Safe Use before using the modules.

Supply voltage

Symbol

Parameter

Min

Typ.

Max

Unit

VDD

Supply voltage

3.3

 

3.3 - 4.2 VDC @ tamb ≤ +85 °C

3.3 - 5.5 VDC @ tamb ≤ +75 °C

V

Current consumption (VDD = 3.3 V)

Symbol

Mode

Min

Typ.

Max

Unit

IDD

Idle, firmware not loaded                                            

 

16

 

mA

 

Idle, firmware loaded, no power save

 

110

 

mA

 

Idle, firmware loaded, normal power save

 

5

 

mA

 

Idle, associated, no power save

 

125

 

mA

 

Peak supply current

 

 

350

mA

I/O DC characteristics

Symbol

Parameter

Min

Typ

Max

Unit

VIL

LOW level input voltage                                              

-0.3

 

0.8

V

VIH

HIGH level input voltage

2

 

3.6

V

VOL

LOW level output voltage

 

 

0.4

V

VOH

HIGH level output voltage

2.4

 

 

V

I GPIO

Sink and source current

 

 

4.0

mA

C GPIO

Input capacitance

 

8

 

pF

SDIO - Full speed mode

Parameter

Symbol

Min

Typ.

Max

Units

CLK

Tsdio

0

 

25

MHz

Data, setup time

Tsd

5

 

 

ns

Data, hold time

Thd

5

 

 

ns

Data, clock to output valid during data transfer

Tod

0

 

14

ns

Data, clock to output valid during data identification

Tod

0

 

50

ns

SDIO - High speed mode

Parameter

Symbol

Min

Typ.

Max

Units

CLK

Tsdio

0

 

50

MHz

Data, setup time

Tsd

6

 

 

ns

Data, hold time

Thd

2

 

 

ns

Data, clock to output valid

Tod

 

 

14

ns

SPI

The SPI master should use polarity falling to rising with phase sampling on rising edge, shift on falling edge. Bitorder is MSB to LSB.

The SPI slave has the possibility to use both normal SPI mode, with shift and sample on rising and falling edges respectively, and an enhanced high speed mode where the shift and sample are both done on the rising edge, similar to the SDIO high speed mode. Since this moves the shift half a SPI cycle forward, the clock frequency can approximately be increased by a factor of two given that the signal path can handle this.

Using the high speed mode does not change the setup for the master.

In order to determine the SPI clock frequency that can be used, the signal propagation delay also need to be taken into consideration. These propagation delays has to be measured for each individual setup. The clock frequency can then be approximated according to the following formulas.

Tclk = (Tod + Tprop + Tfall) * 2
Tclk_high = Tod + Tprop + Trise

Values measured on connectBlue development board cb-0940-02 with a Cheetah SPI master in room temperature can be seen in table below.

Parameter

Symbol

Typ.

Units

SPI_CLK, Clock rise time

Trise

4.0

ns

SPI_CLK, Clock fall time

Tfall

4.0

ns

SPI_MISO, MISO propagation delay

Tprop

4.0

ns

SPI_CLK, Max clock freq. normal mode

Fmax

40.0

MHz

SPI_CLK, Max clock freq. high speed mode

Fhigh_max

50.0 (limited by Cheetah)

MHz

SPI_CLK, Max clock freq. high speed mode

Fhigh_max

75.0 (theoretical)

MHz

Note that the measured Fmax is very close to the limit of what is possible with respect to electrical properties and propagation delays on this particular setup and there is a signficant risk for bit errors. A reasonable limit using the above formula with the Tod from the chip specification below gives Fmax as follows:

Tclk = (Tod_max + Tprop + Tfall) * 2 = (9.0 + 4.0 + 4.0) * 2 => Fmax = ~29.4 MHz
Tclk_high = Tod_max + TpropTrise = 9.5 + 4.0 + 4.0 => Fmax = ~57.1 MHz

SPI chip specifications - Normal mode

Parameter

Symbol

Min

Max

Units

SPI_CLK

Tspi

0

25

MHz

SPI_CS, to output valid

Tcs

3.5

7.5

ns

SPI_CS, setup time

Tcst

5.5

 

ns

SPI_MOSI, setup time

Tsd

1

 

ns

SPI_MOSI, hold time

Thd

1.5

 

ns

SPI_MISO, clock to output valid

Tod

4

9

ns

SPI chip specifications - High speed mode

Parameter

Symbol

Min

Max

Units

SPI_CLK

Tspi

25

75

MHz

SPI_CS, to output valid

Tcs

3.5

7.5

ns

SPI_CS, setup time

Tcst

5.5

 

ns

SPI_MOSI, setup time

Tsd

1

 

ns

SPI_MOSI, hold time

Thd

1.5

 

ns

SPI_MISO, clock to output valid

Tod

4

9.5

ns

Environmental

Parameter

Product variant

Min

Typ

Max

Unit

Storage temperature

OWL221ai/x

-40

 

+125

degC

 

OWL222ai/x

-40

 

+125

degC

Operating temperature

OWL221ai/x

-30

 

+85(1)

+75(2)

degC

 

OWL222ai/x

-30

 

+85(1)

+75(2)

degC

(1). 3.3 - 4.2 VDC

(2). 3.3 - 5.5 VDC

Mechanical characteristics

Parameter

Product variant

 

Value

Unit

Weight

cB-OWL221a-02

Typ

3.8

g

 

cB-OWL221a-04

Typ

4.0

g

Dimension

cB-OWL221a-02

Typ

36 x 23 x 8.3

mm

 

cB-OWL221a-04

Typ

36 x 23 x 4.7

mm

 

Hardware Reset

A hardware-reset input is available on J1 and J3 connectors. An external reset source must be open drain or collector. The RESET-n pin is pulled-up internally with 15 kOhm.

 

Power Control

The wireless LAN modules can be operated in several different power modes.

  • Standard IEEE802.11 power save
  • UAPSD/WMM Power Save Support

Software Details

Architecture

WLAN Software Architecture

Wireless LAN driver software consists of a host driver, in binary format or source code, and target firmware in binary format. In the picture above these two software parts are represented using yellow boxes.

The host needs to be able to hold the target firmware since targets, cB-OWL221a and cB-OWL222a, does not have on-board non-volatile memory. At startup, and at every reset or power cycle, the host driver will download firmware binaries to target before any wireless LAN operations can begin.

Host requirements

Parameter

Value

Comment

Host driver size

approx. 250 Kbytes

Linux driver version 1.1.0

Target firmware size

approx. 150 Kbytes

 

OS support

The cB-OWL22x module software and drivers are available for the following operating systems.

  • Linux
  • Microsoft WinCE
  • Embedded systems, both with and without RTOS

Customized drivers for use in embedded systems are available upon request. Contact connectBlue for more information.

Antenna Information

This chapter gives a quality overview of the different antenna options.

There are 2 different antenna options available:

  • An internal surface mounted (SMD) antenna.
  • Two U.FL connectors for external antennas. Different types of external antennas are available.

Surface mounted antenna (internal)

Part number

cB-OWL221ai / cB-OWL222ai

Antenna

FR05-S1-NO-1-004

Manufacturer

Fractus

Gain

0 dBi @ 2.4GHz, 3 dBi @ 5GHz

avg. VSWR

3.1 @ 2.4GHz, 2.3 @ 5GHz

avg. Efficiency

22% @ 2.4GHz, 39% @ 5GHz

Antenna size (LxWxH)

7 x 3 x 2 mm

Comments

The antenna gain is very dependent of the mounting of the module.
The unit cannot be mounted in a metal-shielded enclosure with this antenna.

Radiation patterns

Radiation Pattern Cuts @2450 MHz – Free Space

Radiation Pattern Cuts @5400 MHz – Free Space

External antennas

The external antennas are connected to the board through a U.FL connector. Some of the antennas are connected directly to the U.FL connector of the board and some are connected using an SMA or reversed polarity SMA connector through a short U.FL to SMA or reversed polarity SMA adapter cable.

Other antennas are also available on request. Please contact connectBlue for more information.

 

Antennas with SMA connectors are not allowed to be used in USA or Canada due to FCC / IC regulations. For USA and Canada antennas with reversed polarity SMA connectors are allowed.

 

Antenna accessories

 

Part Number

cB-ACC-18 / cB-ACC-48

Name

U.FL to SMA adapter cable

Connector

U.FL and SMA jack (outer thread and pin receptacle)

Cable length

120 mm

Cable loss

Less than 0.5 dBm

Comments

The SMA connector may be mounted in a panel. Not approved for use in the US and Canada. Approved for EU and Japan.

Part Number

cB-ACC-38

Name

U.FL to reverse polarity SMA adapter cable

Connector

U.FL and reverse polarity SMA jack (outer thread and pin)

Cable length

120 mm

Cable loss

Less than 0.5 dBm

Comments

The reverse polarity SMA connector may be mounted in a panel. Approved for use in the US, Canada, Japan, and Europe.

 

Antennas

Dual-band antennas

 

Part Number

cB-ACC-53 / cB-ACC-54

Name

Ex-IT WLAN RPSMA / Ex-IT WLAN SMA

Manufacture

ProAnt

Type

½ wave dipole

Polarization

Vertical

Gain

+3 dBi

Size

107 mm (Straight)

Connector

cB-ACC-53: Reverse Polarity SMA plug (inner thread and pin receptacle)
cB-ACC-54: SMA plug (inner thread and pin)

Comment

To be mounted on the U.FL to SMA or reverse polarity SMA adapter cable.

Approval

Both SMA and Reverse Polarity SMA versions are approved for use in Europe and Japan. The SMA version is not approved for use in the US, Canada, and Japan. The Reverse Polarity SMA version is approved for use in the US, Canada, Japan, and Europe.

 

Single-band antennas

 

Part Number

cB-ACC-16 / cB-ACC-36

Name

WCR2400-SMA / WCR2400-SMRP

Manufacture

Laird Technologies / Centurion

Type

½ wave dipole

Polarization

Vertical

Gain

+2.5 dBi

Size

100 mm (Straight)

Connector

cB-ACC-16: SMA plug (inner thread and pin)
cB-ACC-36: Reverse Polarity SMA plug (inner thread and pin receptacle)

Comment

To be mounted on the U.FL to SMA or reverse polarity SMA adapter cable.

Approval

Both SMA and Reverse Polarity SMA versions are approved for use in Europe and Japan. The SMA version is not approved for use in the US, Canada, and Japan. The Reverse Polarity SMA version is approved for use in the US, Canada, Japan, and Europe.

 

 

Part Number

cB-ACC-27

Name

WCR-2400-IP04

Manufacture

Laird Technologies / Centurion

Type

½ wave dipole

Polarization

Vertical

Gain

+2.0 dBi

Size

108 mm (Straight)

Cable length

100 mm (250 mm is also available)

Connector

U.FL. connector

Comment

To be mounted on the U.FL connector on the PCB.

Approval

Approved for use in the US, Canada, Japan, and Europe.

 

 

Part Number

cB-ACC-23

Name

Mobile Mark Stub

Manufacture

Mobile Mark Communications Antennas

Type

¼ wave dipole

Polarization

Vertical

Gain

0 dBi

Size

Ø 9.5 x 26 mm

Connector

SMA plug (inner thread and pin)

Comment

To be mounted on the U.FL to SMA adapter cable.

Approval

Approved for Europe and Japan. Not approved for use in the US and Canada.

 

 

Part Number

cB-ACC-17

Name

Reel planTec Bluetooth m70

Manufacture

REEL

Type

Patch antenna

Gain

+1.0 dBi

Size

Ø 75 x 20 mm

Mounting

M16 x 13.6 mm

Connector

SMA plug (inner thread and pin)

Cable length

300 cm. Other cable lengths are available on request.

Comment

To be mounted on the U.FL to SMA adapter cable.

Approval

Approved for Europe and Japan. Not approved for use in the US and Canada. Please contact connectBlue for information about US and Canada approved versions of the antenna with Reverse Polarity SMA plug connector.

 

 

Part Number

cB-ACC-21

Name

Rugged SMA R380.500.127

Manufacture

Radiall/Larsen

Type

½ wave dipole

Polarization

Vertical

Gain

+2.0 dBi

Size

Ø 14.3 x 61.4 mm

Connector

SMA plug (inner thread and pin)

Comment

To be mounted on the U.FL to SMA adapter cable.

Approval

Approved for Europe and Japan. Not approved for use in the US and Canada. Please contact connectBlue for information about US and Canada approved versions of the antenna with Reverse Polarity SMA plug connector.

Mounting information

Module dimensions


Tolerances:

  1. Outline dimensions +/- 0.1mm
  2. Drilled hole to outline: +/- 0.05mm

Mounting holes

There are 2 x 2.3mm mounting holes on cB-0926. The reasons for the 2.3mm holes are that the threaded M2 holes on the single and double row connectors (see section 4.2.1) are not aligned. The outer tangents of the 2.3mm holes align the module if the single row connectors are used and the inner if double row connectors are used (see Figure 11).
Choose the outer tangent (CC distance 27.24mm) if the module is aligned and mounted with some other technique based on M2 screws (e.g. press-fit nuts), see Figure 12.

Using the J2/J3 board-to-board connectors

The board-to-board connector should be a 1 mm pitch one-piece part connector. The recommended manufacture is Samtec with many connector options available; see section 4.2.1.1.
Chapter 2 contains more information about the connector and the electrical interface.

Double row ASP-118580-01 / ASP-118581-01 connectors

This connector is a double row connector and connects both J2 and J3. It connector has a height of 3.0 mm and this has to be considered if components are to be mounted on the motherboard under the board. The connector is also available with a height of 6.0 mm and 10.0 mm (The FSI-120 serie from Samtec).
There are alignment pins on the bottom side of the connector.
The connector is available with M2 threaded inserts (ASP-118580-01) that fit the mounting holes on the board. You may screw the board directly into these inserts. If you want to have a tighter and more secure mounting you may use longer screws and secure it using a nut on the backside of the motherboard.
Another way to mount the module is to use press-fit nuts on the motherboard and skip the M2 threads on the connector (ASP-118581-01), see section 4.3 for more information about press-fit nuts.

Samtec order number

Quote number

Equivalent part

Package

Remark

REF-120021-01

55392

FSI-120-03-G-D-AB

Tube

Align pin on bottom side only

REF-120021-02

55392

FSI-120-03-G-D-AB-K-TR

Tape-n-Reel

Align pin on bottom side only

REF-120018-01

55392

FSI-120-03-G-D-M-AB

Tube

With M2 threaded inserts and align pin on bottom side only

REF-120018-02

55392

FSI-120-03-G-D-M-AB-K-TR

Tape-n-Reel

With M2 threaded inserts and align pin on bottom side only

When ordering connectors from Samtec or an official Samtec distributor, please use the REF order number and refer to the connectBlue global quote number for best price. For technical questions regarding the Samtec connectors please contact connectBlue or Samtec at Scandinavia@samtec.com.

See figure below for more information about the connector and necessary measurements on the motherboard. The large mounting holes on the motherboard are designed for press-fit nuts and could be smaller if press-fit nuts are not used.

Using press-fit nuts for mounting

A press-fit nut is pressed into the PCB from the bottom side with a special press tool. M2 sized press-fit nuts are suitable for the modules (see figure below) and are manufactured by PEM Fastening Systems, www.pemnet.com, part no KFS2-M2. Be careful with the distance between the nuts regarding alignment.

Spacer-pipes are recommended to use between the PCBs when press-fit nuts are used.

Recommended M2 screw

If a double-row connector with threaded inserts or press-fit nuts are used, then recommended for mounting of modules is a ISO 7380 M2 compatible screw. A suitable screw is the BN6404 from Bossard, www.bossard.com, with TORX T6 head cap. See figure below.

Parameter

Value

Unit

d2

3.5

mm

k max

1.3

mm

t max

0.8

mm

A

2.0

mm

If other type of screw is used please ensure that d2 is less than 3.8 mm otherwise components near the mounting holes can be damaged.

Antenna issues

To ensure not to cause negative influence on the RF-performance of the unit it cannot be arbitrarily mounted. This concerns the choice of enclosure material and objects in the vicinity of the unit.

A unit with an internal surface mounted antenna (cB-OWL221ai and cB-OWL222ai) cannot be mounted in a metal enclosure. This restriction also includes the use of plastic with metal flakes and metallic based paint or lacquer.

The Antenna keep out Area in the picture below marks a recommended area of 10 mm clearance around the antenna that should be kept free from metal and Cu-wiring.
If a metal enclosure is required, one of the external antenna options has to be used.

See section 3.2 for more information on the antenna options available.

 

 

 

WLAN information

In the tables below you can find information about WLAN properties.

Parameter

Data

Radio

Redpine Signals RS9110 + Airoha 8230

RF output power 2.4 GHz

Using WDK-09/WDK-11 v3.1.7 or later (EN 300 328 v1.8.1 approved):
802.11b (CCK): +11dBm (typ.)
802.11g (OFDM): +11dBm (typ.)
802.11n (OFDM): +11dBm (typ.)

Using WDK-09/WDK-11 v3.1.6 or earlier (EN 300 328 v1.7.1 approved):
802.11b (CCK): +20dBm (typ.)
802.11g (OFDM): +17dBm (typ.)
802.11n (OFDM): +17dBm (typ.)

RF output power 5 GHz

802.11a (OFDM): +10dBm (typ.)
802.11n (OFDM): +10dBm (typ.)

Receiver sensitivity

See table below

Receive input level (max)

-10 dBm

Output frequency 2.4 GHz

2.412 - 2.462 GHz, channel 1 - 11 (FCC domain)
2.412 - 2.472 GHz, channel 1 - 13 (ETSI, TELEC domain)

5 MHz channel separation

Output frequency 5 GHz

5.180 - 5.240 GHz, U-NII-1
Channel 36, 40, 44, 48 (FCC, IC, ETSI domain)

5.260 - 5.320 GHz, U-NII-2*
Channel 52, 56, 60, 64 (FCC, IC, ETSI domain)

5.500 - 5.700 GHz, U-NII-2e*
Channel 100, 104, 108,112, 116, 120, 124, 128, 132, 136, 140 (FCC, ETSI domain)

5.500 - 5.700 GHz, U-NII-2e*
Channel 100, 104, 108,112, 116, 132, 136, 140 (IC domain)

5.745 - 5.825 GHz, U-NII-3*
Channel 149, 153, 157, 161, 165 (FCC domain)

TPC and DFS slave/client operation on 5.260 - 5.320 GHz, 5.500 - 5.700 GHz
20 MHz channel separation

Bluetooth co-existence

Basic 2-wire

*The following frequencies

5.260 - 5.320 GHz, U-NII band-2
5.500 - 5.700 GHz, U-NII band-2e
5.745 - 5.825 GHz, U-NII band-3

are only supported by modules shipped after September 1, 2013.
Due to FCC rules it is not possible to upgrade modules shipped prior to the date above to get the additional channels.

Radio sensitivity OFDM

Data rate

802.11gn (channel 6, 2437MHz, dBm)

802.11an (channel 36, 5180MHz, dBm)

MCS7

-69

-68

MCS6

-70

-70

MCS5

-72

-72

MCS4

-76

-76

MCS3

-79

-79

MCS2

-82

-82

MCS1

-84

-83

MCS0

-87

-86

54

-73

-72

48

-75

-73

36

-78

-78

24

-83

-80

18

-85

-83

12

-87

-85

9

-88

-86

6

-89

-87

Radio sensitivity DSSS

Data rate

802.11b (channel 6, 2437MHz, dBm)

11

-86

5.5

-89

2

-91

1

-94

Regulatory Information

CE compliance

Equipment classes

Depending on which frequency bands this WLAN module can operate in it is defined as either class-1 or class-2 radio equipment.
The End-product that utilise the module inherits the equipment class of the module.

  • Class-1 radio equipment can be placed on the market and put into service without restrictions.
    (article 1 of Commission Decision 2000/299/EC of April 6 2000)
  • Class-2 radio equipment is equipment for which Member States apply restrictions as indicated in Article 1(2) of the Decision, which also assigns the “Alert Sign” as “Equipment Class Identifier” for this class.  

This WLAN module is defined as class-1 radio equipment when it is restricted to operate in the following frequency band

  • WLAN, ISM band 2400 – 2483.5 MHz
  • WLAN, U-NII band-2e 5470 – 5725 MHz

If the end product allows the WLAN module to be operated in the band 5150 – 5350 MHz (WLAN channel: 36 – 64) it is defined as class-2 radio equipment and must be marked accordingly.

Class-2 radio equipment must have the "alert" sign affixed on the equipment, packaging and printed in the user instruction manual.

 

Guidance on how the End product that utilise this module is marked in accordance with the R&TTE directive is found in the following links:

http://ec.europa.eu/enterprise/sectors/rtte/documents/index_en.htm#h2-5
http://ec.europa.eu/enterprise/sectors/rtte/documents/guidance/index_en.htm

A direct link to the quick guide to the marking requirements can be found here:
http://ec.europa.eu/enterprise/sectors/rtte/files/guidance/guidance_en.pdf

 

The WLAN module uses harmonised frequency bands thus it is comprised by subclass H01 of class 2 equipment, for which notification in accordance with article 6(4) of the R&TTE directive is not necessary.

A definition of subclasses of Class 2 equipment can be found in the following link:  

 http://ec.europa.eu/enterprise/sectors/rtte/files/rtte-subclass2_en.pdf

The table below shows the restrictions when operating the module within the European countries

band

Channel number

Channel frequency

Indoor Use allowed

Outdoor Use allowed

Radio Equipment Class
ISM

1 - 11

2412 - 2462 MHz

Yes

Yes

1
U-NII 136 - 485180 - 5240 MHz

Yes

No

2
U-NII 2

52 - 64

5260 - 5320 MHz

Yes

No

2
U-NII 2e100 - 1405500 - 5700 MHzYesYes1
U-NII 3149 - 1655745 - 5825 MHzNoNo-

For U-NII band-2 (5.260 - 5.320 GHz) and U-NII band-2e (5.500 - 5.700 GHz) the module is only allowed to operate as a DFS slave/client device.

 

Declaration of Conformity

We, connectBlue AB, of Norra Vallgatan 64 3V
SE-211 22 Malmö, Sweden

declare under our sole responsibility that our products:

  • cB-OWL221ai
  • cB-OWL221ax
  • cB-OWL222ai
  • cB-OWL222ax

to which this declaration relates, conforms to the following product specifications:

R&TTE Directive 1999/5/EC

Effective use of frequency spectrum:
   EN 300 328 V1.8.1 (2012-04) using WDK-09/WDK-11 v3.1.7 or later
   EN 300 328 V1.7.1 (2006-10) using WDK-09/WDK-11 v3.1.6 or earlier

   EN 301 893 V1.7.1 (2012-06) using WDK-09/WDK-11 v3.1.7 or later
   EN 301 893 V1.5.1 (2008-12) using WDK-09/WDK-11 v3.1.6 or earlier

EMC:
   EN 301 489-1 V1.9.2 (2011-09)
   EN 301 489-17 V2.2.1 (2012-09)
   EN 61000-6-2 (2005)

Health and safety:
   EN 60950-1:2006 + A11:2009 + A1:2010 + A12:2011
   IEC 60950-1:2005 (2nd Edition) + A1:2009
   EN 62311:2008

Medical Electrical Equipment
 
IEC 60601-1-2 : 2007 (for single antenna configurations)
 

IC and FCC compliance

See Product variants for information about the different product variants.

IC compliance

This device complies with Industry Canada licence-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.

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.

The device for 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; the maximum antenna gain permitted for devices in the bands 5250-5350 MHz and 5470-5725 MHz shall comply with the e.i.r.p. limit; and the maximum antenna gain permitted for devices in the band 5725-5825 MHz shall comply with the e.i.r.p. limits specified for point-to-point and non point-to-point operation as appropriate.

Operation in the 5600-5650 MHz band is not allowed in Canada. High-power radars are allocated as primary users (i.e. priority users) of the bands 5250-5350 MHz and 5650-5850 MHz and that these radars could cause interference and/or damage to LE-LAN devices.

This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator & your body.

Conformité aux normes d’IC

Cet appareil est conforme à la(aux) norme(s) RSS sans licence d’Industry Canada.
Son utilisation est soumise aux deux conditions suivantes :

  1. Cet appareil ne doit pas causer d’interférences et
  2. il doit accepter toutes interférences reçues, y compris celles susceptibles d’avoir des effets indésirables sur son fonctionnement.

Conformément aux réglementations d’Industry Canada, cet émetteur radio ne peut fonctionner qu’à l’aide d’une antenne dont le type et le gain maximal (ou minimal) ont été approuvés pour cet émetteur par Industry Canada. Pour réduire le risque d’interférences avec d’autres utilisateurs, il faut choisir le type d’antenne et son gain de telle sorte que la puissance isotrope rayonnée équivalente (p.i.r.e) ne soit pas supérieure à celle requise pour obtenir une communication satisfaisante.

Le dispositif de fonctionnement dans la bande 5150-5250 MHz est réservé à une utilisation en intérieur pour réduire le risque d'interférences nuisibles à la co-canal systèmes mobiles par satellite, le gain d'antenne maximal autorisé pour les appareils dans les bandes 5250-5350 MHz et 5470-5725 MHz doit se conformer à la pire limite, et le gain d'antenne maximal autorisé pour les appareils dans la bande 5725-5825 MHz doivent être conformes avec le pire limites spécifiées à point-à-ponctuelles et non point-à-point de fonctionnement selon qu'il convient.

Opération dans la bande 5600-5650 MHz n'est pas autorisée au Canada. Haute puissance radars sont désignés comme utilisateurs principaux (c.-àutilisateurs prioritaires) des bandes 5250-5350 MHz et 5650-5850 MHz et que ces radars pourraient causer des interférences et / ou des dommages à dispositifs LAN-EL.

Cet équipement respecte les limites d’exposition aux rayonnements IC RSS-102 définies pour un environnement non contrôlé. Il doit être installé et utilisé en maintenant une distance minimum de 20 cm entre le radiateur et votre corps.

FCC statement

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
  2. This device must accept any interference received, including interference that may cause undesired operation.

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.

End product labelling requirements

For an end product using the product there MUST be a label containing, at least, the following information:

This device contains
FCC ID: PVH0926
IC: 5325A-0926

The label must be affixed on an exterior surface of the end product such that it will be visible upon inspection in compliance with the modular approval guidelines developed by the FCC.

FCC end product labelling

In accordance with 47 CFR § 15.19 the end product shall bear the following statement in a conspicuous location on the device:

"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."

When the device is so small or for such use that it is not practicable to place the statement above on it, the information shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. However, the FCC ID label must be displayed on the device. In case, where the final product will be installed in locations where the end-user is not able to see the FCC ID and/or this statement, the FCC ID and the statement shall also be included in the end-product manual.

IC end product labelling

User manuals for licence-exempt LPDs shall contain the following or equivalent statements in a conspicuous position:

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.
Étiquetage du produit final conforme à IC

Les manuels d’utilisation d’appareils de faible puissance, sans licence, feront figurer à un endroit bien visible les mentions suivantes ou équivalentes:

Son utilisation est soumise aux deux conditions suivantes:

  1. Cet appareil ne doit pas causer d’interférences et
  2. il doit accepter toutes interférences reçues, y compris celles susceptibles d’avoir des effets indésirables sur son fonctionnement.

Antenna

Our module types cB-OWL221a and cB-OWL222a is for OEM integrations only. In the end-user product the module shall be professionally installed in such a manner that only the authorized antennas can be used.

Caution

Any changes or modifications NOT explicitly APPROVED by connectBlue AB could cause the module to cease to comply with FCC rules part 15, and thus void the user's authority to operate the equipment.

Within the 5180 to 5240 MHz band (5 GHz radio channels 34 to 48) the module types cB-OWL221a and cB-OWL222a are restricted to indoor operations.

§15.407 statement; in case of absence of information to transmit or operational failure the modules types cB-OWL221a and cB-OWL222a will automatically discontinue transmission.

Ad-hoc frequencies

Module types cB-OWL221a and cB-OWL222a when operating under the definition of a client in 47 CFR §15.202 is preconfigured to use the most restrictive regulatory domain. For this reason the available operating frequency range is limited to channel 1 - 11 (2412 - 2462 MHz) for IEEE802.11b/g. For IEEE802.11a the available operating frequency range is limited to channels 36 - 48 (5180 - 5240 MHz).

RF-exposure statement

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator & your body.

This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator & your body.

Cet équipement est conforme aux limites d'exposition de rayonnement d'IC RSS-102 déterminées pour un environnement non contrôlé. Cet équipement devrait être installé et actionné avec la distance minimum 20 cm entre le radiateur et votre corps.

Any notification to the end user of installation or removal instructions about the integrated radio module is NOT allowed.

Japan Radio Equipment Compliance (TELEC)

The module types cB-OWL221a and cB-OWL222a complies with the Japanese Technical Regulation Conformity Certification of Specified Radio Equipment (ordinance of MPT N°. 37, 1981), Article 2, Paragraph 1, Item 19, "2.4GHz band wide band low power data communication system".

The Japan radio equipment compliance for cB-OWL221a and cB-OWL222a is for 2.4 GHz (channel 1 - 13) only. The operation of this module in 5 GHz band is thus prohibited in Japan.

The module types cB-OWL221a and cB-OWL222a MIC certification number is:

204-310003

When a product is placed on the Japanese market, the module types cB-OWL221a and cB-OWL222a product must be affixed with the following Specified Radio Equipment marking:

 

The minimum size of the logo is Ø3.0mm. The end product holder should also include a copy of the Japan Radio Certificate to the end product technical documentation, contact connectBlue for a copy of the Radio Certificate.

The end product is recommended to be marked with:

Contains MIC ID 204-310003

UL listing information

If a customer intends to UL list a product including the OWL221a/OWL222a based on the PCB cB-0926 this information is useful.
The printed circuit board if produced according to the following specification:

  • UL recognized ZPMV2 min. 130 °C flame class V-0 or better.

Compliance with RoHS directive

The OWL221a are produced according to the RoHS (Restriction of the use of certain Hazardous Substances in electrical and electronic equipment) directive and complies with the directive.

Guidelines for efficient and safe use

General

Read this information before using your OWL221a/OWL222a module.
For any exceptions, due to national requirements or limitations, when using your OWL221a/OWL222a module, please contact connectBlue AB.

Changes or modifications to the product not expressly approved by connectBlue AB will void the user's authority to operate the equipment.

Product care

  • Do not expose your product to liquid or moisture.
  • Do not expose you product to extreme hot or cold temperature.
  • Do not expose your product to lit candles, cigarettes, cigars, open flames, etc.
  • Do not drop, throw or try to bend your product since rough treatment could damage your product.
  • Do not attempt to disassemble your product. Doing so will void warranty. The product does not contain consumer serviceable or replaceable components. Service should only be performed by connectBlue AB.
  • Do not paint your product as the paint could prevent normal use.
  • If you will not be using your product for a while, store it in a place that is dry, free from
    damp, dust and extreme heat and cold.
  • The clearance and creepage distances required by the end product must be withheld when the module is installed.
  • The cooling of the end product shall not negatively be influenced by the installation of the module when the module is installed.

Radio frequency exposure

The OWL221a/OWL222a module contains a small radio transmitter and receiver.
During communication with other WLAN products the OWL221a/OWL222a module receives and transmits radio frequency (RF) electromagnetic fields (microwaves) in the frequency range 2412 - 2462 MHz and 5180 - 5240 MHz. The output power of the radio transmitter is very low.
When using the OWL221a/OWL222a module, you will be exposed to some of the transmitted RF energy. This exposure is well below the prescribed limits in all national and international RF safety standards and regulations.

Electronic equipment

Most modern electronic equipment, for example, in hospitals and cars, is shielded from RF energy. However, certain electronic equipment is not. Therefore:

This equipment emits RF energy in the ISM (Industrial, Scientific, Medical) band. Please insure that all medical devices used in proximity to this device meet appropriate susceptibility specifications for this type of RF energy.

Potentially explosive atmospheres

Turn off your electronic device before entering an area with potentially explosive atmosphere. It is rare, but your electronic device could generate sparks. Sparks in such areas could cause an explosion or fire resulting in bodily injury or even death.
Areas with a potentially explosive atmosphere are often, but not always, clearly marked. They include fuelling areas, such as petrol station, below deck on boats, fuel or chemical transfer or storage facilities, and areas where the air contains chemicals or particles, such as grain, dust, or metal powders.

Safety compliance

In order to fulfill the safety standard EN 60950-1:2006 the cB-OWL221a and cB-OWL222a must be supplied by a Class-2 Limited Power Source.

 

Design examples

Basic design

Basic design example showing how to connect an cB-OWL221ai/x to a microcontroller.

The 22 uF decoupling capacitor should be positioned close to the module power supply pins. This to compensate for the surge current during power up and release of reset.

Reset

The RESET-n pin is active low and can be connected to an external reset source, see the first figure below for an example using a switch. If the RESET-n pin is to be controlled by an external signal this signal must be of open drain type.

If the reset is controlled by a BI-state output (e.g. CMOS, totem-pole) care must be taken to ensure that current is not sourced into the RESET-n pin.
Failing to do so may cause undesired operation of the module.

In order to improve the ESD performance of the module it is recomended to decouple the RESET-n pin with a 10nF capacitor to VSS.

Connecting an external reset switch to the RESET-n pin.

 

If the RESET-n pin is connected to a GPIO of a MCU/CPU the GPIO should be open-drain or 3-state output without external pull-up resistor
thus when the RESET-n signal is released it is not soursing current into the reset pin.

 

By using a CMOS 3-state output to control the module reset signal makes it independent of the host supply voltage.

The device for 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; the maximum antenna gain permitted for devices in the bands 5250-5350 MHz and 5470-5725 MHz shall comply with the e.i.r.p. limit; and the maximum antenna gain permitted for devices in the band 5725-5825 MHz shall comply with the e.i.r.p. limits specified for point-to-point and non point-to-point operation as appropriate.

Revision history

Revision
Date
Name
Status / Comments
1214-Oct-2013ovik
  • Initial release
1312-Mar-2015ovik/cste
  • Max supply voltage lowered from 5.5V to 4.2 V for ambient temperatures above 75°C
  • ETSI EN 300 328 compliance updated from v1.7.1 to v1.8.1. The compliance requires the following changes:
    • Max RF output power for 2.4 GHz decreased
    • WDK-09/WDK-11 v3.1.7 or later is required
    • Declaration of Conformity updated
  • ETSI EN 301 893 compliance updated from v1.5.1 to v1.7.1. The compliance requires the following changes:
    • WDK-09/WDK-11 v3.1.7 or later is required
    • Declaration of Conformity updated