EM770W_HW_SPECV1.12

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Product Description

EM770W UMTS M2M Wireless Module V100R001

Issue Date

1.122009-07-28

Distributed by

HUAWEI TECHNOLOGIES CO., LTD

Maxon Electronics Australia Pty. Ltd. is proud to distribute the Huawei HSUPA Mini PCI Module EM-770W built to Maxon's specifications.

In keeping with Maxon's dedicated customer support policy, we encourage you to contact us.

TECHNICAL:

Hours of Operation : Monday to Friday 8.30am to 5.30pm* Telephone: +61 2 8707 3000 Facsimile: +61 2 8707 3001 Email:

support@maxon.com.au

* Public holidays excluded

SALES:

Hours of Operation: Monday to Friday 8.30am to 5.30pm* Telephone:

+61 2 8707 3000

Facsimile: +61 2 8707 3001 Email:

sales@maxon.com.au

* Public holidays excluded

WEBSITE:

Maxon has also added for the benefit of developers and integrators, a forum on our website that can be accessed to discuss this product and/or technical matters in relation to your applications. All questions raised within this portal will be answered.

FORUM: www.maxon.com.au/forum ADDRESS:

www.maxon.com.au

Maxon Electronics Australia Pty Ltd 36a Gibson Avenue, Padstow Sydney, NSW, Australia 2211

POSTAL ADDRESS

Maxon Electronics Australia Pty Ltd Po Box 1, Revesby North, Sydney, NSW Australia 2212

EM770W UMTS M2M Wireless Module

Product Description

RF EXPOSURE &

ELECTRICAL SAFETY COMPLIANCE

The use of this device in any other type of host configuration may not comply with the RF exposure requirements and should be avoided. During operation, a 20 cm separation distance should be maintained between the antenna, whether extended or retracted, and the user’s/bystander’s body (excluding hands, wrists, feet, and ankles) to ensure RF exposure compliance. The modem is not

designed for, nor intended to be, used in applications within 20 cm (8 inches) of the body of the user. Continued compliance of the equipment relies upon it being used with an AS/NZS 60950.1 approved SELV power supply.

CAUTION

Change or modification without the express consent of Maxon Electronics Australia Pty. Ltd. voids the user’s authority to use the equipment. These limits are designed to provide reasonable protection against harmful interference in an appropriate installation. The modem is a transmitting device with similar output power to a mobile phone. This equipment generates, uses, and can radiate radio frequency energy and, if not used in accordance with instructions, can cause harmful radiation to radio communication. Use only the supplied or an approved antenna. Unauthorized antennas, modi-fications, or attachments could impair call quality, damage the device, or result in violation of RF exposure regulations.

However, there is no guarantee that interference will not occur in a particular installation. If the equipment does cause harmful interference in radio and television reception, which can be deter-mined by turning the equipment on and off, the user is encouraged to try to correct the interference by one or more of the following measures:

t Re-orient or relocate the receiving radio or TV antenna

t Increase the separation distance between the equipment and the receivert Contact Maxon Australia Technical Support for assistance.

EM770W UMTS M2M Wireless Module

Product Description

General Safety

RF Interference Issues

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Vehicle Safety

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EM770W UMTS M2M Wireless Module

Product Description

NOTES

The user is cautioned that changes or modifications not expressly approved by Maxon Australia could void the warrantee.

POTENTIALLY UNSAFE AREAS

Posted facilities: Turn off this device in any facility or area when posted notices require you to do so.

Blasting areas: Turn off your device where blasting is in progress. Observe restrictions and follow any regulations or rules.

Potentially explosive atmospheres: Turn off your device when you are in any area with a potentially explosive atmosphere. Obey all signs and instructions. Sparks in such areas could cause an explosion or fire, resulting in bodily injury or death.

Areas with a potentially explosive atmosphere are often but not always clearly marked.They include:

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EM770W UMTS M2M Wireless Module

Product Description

Contents

1 Product Overview.........................................................................................................................6

1.1 About This Chapter..........................................................................................................................................6 1.2 Appearance.......................................................................................................................................................6 1.3 Functions..........................................................................................................................................................7 1.4 Application Block Diagram..............................................................................................................................9

2 Interface Description..................................................................................................................10

2.1 About This Chapter........................................................................................................................................10 2.2 Universal Mini PCI Express Interface............................................................................................................10

2.2.1 Interface Signals....................................................................................................................................10 2.3 Pin Sequence..................................................................................................................................................14 2.4 Antenna Interfaces..........................................................................................................................................14

2.4.1 Antenna Interface Circuits....................................................................................................................14

3 Electrical Features of the Interfaces.........................................................................................17

3.1 About This Chapter........................................................................................................................................17 3.2 Extreme Conditions........................................................................................................................................17 3.3 Operation and storage temperature range.......................................................................................................17 3.4 DC characteristics of IO interfaces................................................................................................................18 3.5 Power Supply Features...................................................................................................................................18

3.5.1 Input Power Supply...............................................................................................................................18 3.5.2 Working Current...................................................................................................................................19 3.5.3 Power-On Process.................................................................................................................................22 3.6 Reliability Characteristics..............................................................................................................................22 3.7 ESD feature....................................................................................................................................................23

3.7.1 General..................................................................................................................................................23 3.7.2 USIM....................................................................................................................................................23

4 Interface Usage............................................................................................................................24

4.1 About This Chapter........................................................................................................................................24 4.2 UART Interface..............................................................................................................................................24 4.3 USIM Card Interface......................................................................................................................................28 4.4 Audio Interface...............................................................................................................................................29 4.5 Power Supply Interface..................................................................................................................................30 4.6 USB Bus.........................................................................................................................................................31

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4.7 LED Status Indicator......................................................................................................................................32 4.8 Reset Interface................................................................................................................................................33

EM770W UMTS M2M Wireless Module

Product Description

5 Structure........................................................................................................................................34

5.1 About This Chapter........................................................................................................................................34 5.2 Outline Dimensions of the EM770W UMTS M2M Wireless Module...........................................................34 5.3 Outline Dimensions of the Mini PCI Express Interface.................................................................................35

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EM770W UMTS M2M Wireless Module

Product Description

1 1.1 About This Chapter

z z z z

Product Overview

This chapter provides an overview of the EM700W Universal Mobile Telecommunications System (UMTS) M2M wireless module, with the following information included:

Appearance Functions

Application Block Diagram Abbreviation

1.2 Appearance

The appearance of the EM770W UMTS M2M wireless module is simple and delicate, as shown in Figure 1-1.

Figure 1-1 Appearance of the EM770W UMTS M2M wireless module

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EM770W UMTS M2M Wireless Module

Product Description

1.3 Functions

The EM770W UMTS M2M wireless module supports the following functions and features:

z z z z z z

Frequency bands of UMTS 2100/1900/900/850MHz and GPRS/GSM 1900/1800/900/850MHz

Audio, short message, data, and supplementary services Built-in TCP/IP protocol stack Firmware Over The Air (FOTA)

Universal Mini Peripheral Component Interconnect (PCI) Express interface

Interfaces, such as the power interface, two serial ports (including one 8-wire full-serial port and one 5-wire serial port), one audio input and output (I/O) interface (only support handset), one User Identification Module (USIM) card interface (3.0 V or1.8 V), one high-speed Universal Serial Bus (USB) interface Main antenna and diversity antenna interfaces

AT command sets and Huawei extended AT command sets Special USIM card services

Compliance with Restrictions on Hazardous Substances (RoHS) standards

z z z z

Table 1-1 Key features of the EM770W UMTS M2M wireless module

Feature Frequency bands

Description

UMTS: Quad band, 850/900/1900/2100MHz

HSUPA /HSDPA: 850/900/1900/2100MHz

GSM/GPRS/EDGE: Quad band, 850/900/1800/1900MHz Class 4 (+33dBm ±2dB) for EGSM/GPRS 850 Class 4 (+33dBm ±2dB) for EGSM/GPRS 900 Class 1 (+30dBm ±2dB) for GSM/GPRS 1800 Class 1 (+30dBm ±2dB) for GSM/GPRS 1900

Class 3 (+24dBm +1/-3dB) for UMTS 2100, WCDMA FDD BdI Class 3 (+24dBm +1/-3dB) for UMTS 1900, WCDMA FDD BdII Class 3 (+24dBm +1/-3dB) for UMTS 900,WCDMA FDD BdVIII Class 3 (+24dBm +1/-3dB) for UMTS 850,WCDMA FDD BdV

Output power

Temperature rangeNormal operation˖-10ć̚+6󰀘ć Extended operation˖-20ć̚-10ć

+65ć̚+70ć

Storage :˖-40ć̚+90ć

Power supply Power

consumption UMTS feature

3.0V̚3.6V˄typical 3.3V˅ Sleep mode˖<3mA

Speech mode(average)˖250mA

3GPP Release 6

HSPA data rate ˉ 7.2 Mbps DL / 2 Mbps UL PS data rate – 384 kbps DL / 384 kbps UL CS data rate – kbps DL / kbps UL

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EM770W UMTS M2M Wireless Module

Product Description

Feature Description

EDGE/GPRS/GSM EDGE

• Class 12ˈUL: 236.8 kbps/DL: 236.8 kbps feature

GPRS

• Multi-slot Class 12ˈUL: 53.6 kbps/DL: 53.6 kbps • Full PBCCH support • Mobile Station Class B • Coding Scheme 1 – 4 CSD

• V.110, RLP, non-transparent • 14.4 kbps AT commands Mini PCI Express interface

AT command sets and Huawei extended AT command sets 2YUART(UART1 is 8-wire full-serial portˈand with the flow control function. maximum speed 230.4kbps)󰀁1 USIM˄3Vǃ1.8V˅ 1 USB2.0 High Speed interface 1 Hardware reset 1 analog audio interface LED status indicator interface Power supply interface

External interface󰀃

Mini PCI Express interface˖PCI Express Mini Card Specification 1.2

Antenna interface˖Astron 51-3612-50-H or HRS U.FL-R-SMT-1(10) RF connect󰀃

Audio SMS feature

Supports FR,EFR,HR and AMR󰀃󰀃MO and MT

Point to point and cell broadcast TEXT and PDU modes

Supplementary

service

Caller id display, call forwarding , call hold, call waiting, three-party call service

Embedded TCP/IP protocol stack

Physical

Dimensions: 30x 50.9 x4.7 mm Weight: 11.5f0.3g

Other FOTA RoHS RoHS compliant

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EM770W UMTS M2M Wireless Module

Product Description

Feature Description Approvals and Certifications

CE˄CE0682˅ GCF A-Tick FCC ROHS PTCRB

1.4 Application Block Diagram

Figure 1-2 shows the application block diagram of the EM770W UMTS M2M wireless module.

Figure 1-2 Application block diagram of the EM770W UMTS M2M wireless module

Net Status LEDPCMUSBPCM codecResetUSB

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EM770W UMTS M2M Wireless Module

Product Description

2 2.1 About This Chapter

z z z

Interface Description

This chapter describes the interfaces of the EM770W UMTS M2M wireless module, including:

Universal Mini PCI Express Interface Antenna Interfaces Pin Sequence

Attention:

Regarding to the interface, any interface should be powered up later than the module. That is the module must be powered up first, then the peripheral interface. Otherwise Operation will damage to the module even make the module permanent damage.

2.2 Universal Mini PCI Express Interface

2.2.1 Interface Signals

The EM770W UMTS M2M wireless module adopts the universal Mini PCI Express interface. Table 2-1 shows the functions of the 52 pins of the universal Mini PCI Express interface. Table 2-1 Functions of the Mini PCI Express interface

No.

Signal

I/O Function

Positive pole of the MIC input signal P 3.3 V DC power input Negative pole of the MIC input signal Negative pole of the power P supply

Remarks

1 MCP 2 VCC_3V3 3 MCN 4 GND Issue 1.12 (2009-07-24)

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EM770W UMTS M2M Wireless Module

Product Description

No. Signal

III/O Function

Positive pole of the output O signal to the receiver -

Reserved

Remarks

This pin must be suspended.

It is used to power the USIM card.

Transistor-Transistor Logic (TTL) level.

It corresponds to the TXD signal of the PC after the level is converted.

TTL level.

It corresponds to the RXD signal of the PC after the level is converted.

This pin must be suspended.

5 EARP 6

Reserved

7 EARN Negative pole of the output O signal to the receiver

Power supply output for USIM card

8 VREG_USM_C P

I9 GND 10

USIM_IO_C

Negative pole of the power P supply I/O

Data signal of the USIM card

11 UART1_RX I UART1 data reception

12 USIM_CLK_C O O O

Clock signal of the USIM card UART1 data sending Reset signal of the USIM card

13 UART1_TX 14

IUSIM_RST_C

15 GND 16

Reserved

Negative pole of the power P supply Reserved I

17 UART1_R 18 GND 19 20

Reserved Reserved

UART1 ringing indication See Note 1.

This pin must be suspended. This pin must be suspended. TTL level.

It corresponds to the RTS signal of

the PC after the level is converted. This pin must be suspended.

Negative pole of the power P supply Reserved

Reserved

21 GND 22 PERST_N 23 UART1_CTS 24

Reserved

Negative pole of the power P supply Module reset signal UART1 Clear-to-Send (CTS) /O signal Reserved UART1 Ready-for-Receive O (RFR) signal

25 UART1_RFR Issue 1.12 (2009-07-24)

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EM770W UMTS M2M Wireless Module

Product Description

No. Signal I/O Function

Negative pole of the power P supply Negative pole of the power P supply

Reserved

Remarks

This pin must be suspended. TTL level.

It corresponds to the DTR signal of the PC after the level is converted. TTL level.

It corresponds to the RTS signal of the PC after the level is converted. TTL level.

It corresponds to the DCD signal of the PC after the level is converted.

TTL level.

26 GND 27 GND 28

Reserved

29 GND Negative pole of the power IP supply

O UART3 RFR signal UART1 Data Terminal Ready (DTR) signal

30 UART3_RFR 31 UART1_DTR 32 UART3_CTS O UART3 CTS signal

33 UART1_DCD II 34 GND 35 GND 36

USB_D-

UART1 Data Carrier Detect

(DCD) signal

Negative pole of the power P supply Negative pole of the power P supply I/O

Negative USB signal

37 GND 38 USB_D+ 39

VCC_3V3

Negative pole of the power P supply /O Positive USB signal P

3.3 V DC power input

40 GND 41

VCC_3V3

Negative pole of the power P supply P

3.3 V DC power input

42 LED_WWAN 43 GND O LED signal

Negative pole of the power P supply I

UART3 data reception Reserved

44 45

UART3_RX Reserved

It corresponds to the TXD signal of the PC after the level is converted. This pin must be suspended.

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EM770W UMTS M2M Wireless Module

Product Description

No. Signal I/O Function

O UART3 data sending Reserved

Reserveds Reserved

Remarks TTL level.

It corresponds to the RXD signal of

the PC after the level is converted. This pin must be suspended. This pin must be suspended. This pin must be suspended.

This pin must be suspended.

46 UART3_TX 47 48 49

Reserved Reserved Reserved

50 GND 51 52

Reserved VCC_3V3

Negative pole of the power P supply Reserved P

3.3 V DC power input

Note 1: UART1 is an 8-wire full-serial port.

Note 2: In Table 2-1 pad type P is power, I is digital signal input, O is digital signal output, AI is analog signal input, AO is analog signal output.

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EM770W UMTS M2M Wireless Module

Product Description

2.3 Pin Sequence

Figure 2-1 Pins sequence diagram for the EM770W module

2.4 Antenna Interfaces

2.4.1 Antenna Interface Circuits

The EM770W UMTS M2M wireless module has two antenna interfaces, namely, main

antenna and diversity antenna. Considering antenna resistance, you need to select cables and antennas with the 50-ohm characteristic resistance. Both the main diversity and the diversity antenna interfaces of the module use the 51-3612-50-H RF connector from Astron or HRS U.FL-R-SMT-1(10) RF connector. Figure 2-2 shows the dimensions of the RF connector.

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EM770W UMTS M2M Wireless Module

Product Description

Figure 2-2 Dimensions of the RF connector

The transmission characteristics of the antenna interfaces of the module is as Table 2-2: Table 2-2 Transmission characteristics of antenna interface

Frequency Range

Uplink 824 MHz~849 MHz

GSM

880 MHz~915 MHz 1710 MHz~1785 MHz 1850 MHz~1910 MHz

Frequency Range

Downlink 869 MHz~4 MHz 925 MHz ~960 MHz 1805 MHz ~1880 MHz1930 MHz ~1990 MHz

Power (dBm)

Receiving Sensitivity of the Antenna Interfaces

33f2 < ̢108.5 dBm 33f2 < ̢108.5 dBm 30f2 < ̢108.5 dBm 30f2 < ̢108.5 dBm

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EM770W UMTS M2M Wireless Module

Product Description

Frequency Range

Uplink 824 MHz~849 MHz

Frequency Range

Downlink 869MHz~4 MHz 925 MHz ~960 MHz

Power (dBm)

Receiving Sensitivity of the Antenna Interfaces

24+1󰀒󰀐3 < ̢109 dBm 24+1󰀒󰀐3 < ̢109 dBm 24+1󰀒󰀐3 < ̢107 dBm 24+1󰀒󰀐3 < ̢109 dBm

WCDMA

880 MHz~915 MHz 1850 MHz ~1910 MHz 1920 MHz~1980 MHz

1930MHz~ 1990MHz2110 MHz ~2170 MHz

It is recommended that the antenna whose gain value is greater than 1dBi be used.

Adjust each component parameter value according to the cabling of the user's circuit board.

As reference, connected an inductance valued 68~100nH to Ground to protected against ESD. Pay attention to the resistance matching and the antistatic capability or lightning protection capability of the antennas.

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3 z z z z z z

Electrical Features of the Interfaces

3.1 About This Chapter

This chapter describes the electrical features of the interfaces of the EM770W UMTS M2M wireless module, including:

Extreme Conditions

Operating and storage temperature range DC characteristics of IO interfaces Power Supply Features Reliability characteristics ESD feature

This chapter describes the electrical features of the external interfaces of the EM770W UMTS M2M wireless module, not including the power supply components of the interfaces.

3.2 Extreme Conditions

Table 3-1 shows the extreme conditions of the EM770W UMTS M2M wireless module. Stresses beyond any of these limits will cause permanent damage to EM770W. Table 3-1 Extreme conditions of the EM770W UMTS M2M wireless module Parameter Vin

Description

I/O interface input voltage

Minimum Value -0.5 -0.5

Maximum Value 2.8 5.0

Unit V V

VCC_3V3 Module input voltage

3.3 Operation and storage temperature range

Table 3-2 shows the operation and storage temperature range of the EM770W UMTS M2M

wireless module.

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Table 3-2 Temperature range of the EM770W UMTS M2M wireless module Parameter

Description

Minimum

value

Maximum value

Unit ć

To Normal operation -10 65󰀃

temperature

Ta Extreme temperature -20 70 ć ć Ts Storage temperature -40 90 I INote : In Table 3-2, the normal working temperature refers to the recommended working

temperature for the module; the extreme working temperature refers to the temperature at which the module runs imposes a limit on the output power.

3.4 DC characteristics of IO interfaces

Table 3-3 shows the DC characteristics of IO interfaces of the EM770W UMTS M2M wireless module. In the table, VDD-IO=2.6 V.

Table 3-3 DC characteristics of IO interfaces of the EM770W UMTS M2M wireless module Parameter

VIH VIL VOH

Description

High-level input voltage Low-level input voltage High-level output voltage

Minimum Value 0.65 x VDD-IO

̢0.3 VDD-IO̢0.45

Maximum Value Unit VDD-IO + 0.3

0.35 x VDD-IO V VDD-IO V 0.45 7

V pF VOL Low-level output voltageCN nput capacitance

3.5 Power Supply Features

3.5.1 Input Power Supply

Table 3-4 shows the requirements for the input power supply of the EM770W UMTS M2M wireless module.

Table 3-4 Requirements for the input power supply of the EM770W UMTS M2M wireless module Parameter

Minimum Value

Typical Value 3.3

Maximum Value 3.6

Unit V

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3.5.2 Working Current

Table 3-5 shows the requirements for the working current of the EM770W UMTS M2M wireless module.

Table 3-5 Requirements for the working current of the EM770W UMTS M2M wireless module(see Note 2)

Parameter Power voltage

GSM/GPRS/EDGE

Sleep Mode

Min 3.0

Type 3.3

Max 3.6

Unit V

@DRX=2 6.9 mA @DRX=5 4.8 mA @DRX=9 4.2 mA @DRX=2 Mode 1(note 1)

IDLE Mode

@DRX=2 Mode 2 110 mA @DRX=2 Mode 3

@DRX=2 Mode 4 117 mA GSM850 PCL=5

Voice Call

GSM900 PCL=5

438 411

mA mA

GSM1800 PCL=0 335 mA GSM1900 PCL=0 308 mA GPRS Data

transfer (class 12) 4Rx,1Tx

GSM850 PCL=5 GSM900 PCL=5

394 370

mA mA

GSM1800 PCL=0 354 mA GSM1900 PCL=0 GSM850 PCL=5 GSM900 PCL=5

325 531 500

mA mA mA

GPRS Data

transfer (class 12) 3Rx,2Tx

GSM1800 PCL=0 499 mA GSM1900 PCL=0 GSM850 PCL=5 GSM900 PCL=5

457 604 571

mA mA mA

GPRS Data

transfer (class 12) 2Rx,3Tx GPRS Data

GSM1800 PCL=0 611 mA GSM1900 PCL=0 GSM850 PCL=5

558 628

mA mA

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Parameter transfer (class 12) 1Rx,4Tx

GSM900 PCL=5

Min

Type 594

Max

Unit mA

GSM1800 PCL=0 688 mA GSM1900 PCL=0 629 mA EDGE Data

transfer (class 12) 1Rx,4Tx

GSM850 PCL=5 GSM900 PCL=5

484 462

mA mA

GSM1800 PCL=0 460 mA GSM1900 PCL=0 425 mA GSM850 PCL=5 GSM900 PCL=5

430 413

mA mA

EDGE Data

transfer (class 12) 2Rx,3Tx

GSM1800 PCL=0 411 mA GSM1900 PCL=0 381 mA GSM850 PCL=5 GSM900 PCL=5

375 360

mA mA

EDGE Data

transfer (class 12) 3Rx,2Tx

GSM1800 PCL=0 359 mA GSM1900 PCL=0 332 mA GSM850 PCL=5 GSM900 PCL=5

249 242

mA mA

EDGE Data

transfer (class 12) 4Rx,1Tx

GSM1800 PCL=0 240 mA GSM1900 PCL=0 225 mA 2.1 2.5 A 1.8 2.3 A 1.6 1.8 A 1.4 1.6 A VOICE Call GSM850; PCL=5

Peak current

VOICE Call GSM900; during

PCL=5 GSM

transmit VOICE Call GSM1800; burst PCL=0

VOICE Call GSM1900;

PCL=0

WCDMA

Sleep Mode

@DRX=6 5.5 mA @DRX=8 3.8 mA @DRX=9 3.5 mA IDLE Mode

@DRX=6 Mode 1

@DRX=6 Mode 2 105 mA @DRX=6 Mode 3

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Parameter Min Type Max Unit

@DRX=6 Mode 4 117 mA Band I @+10dBm Band I @+23dBm Band II @+10dBm

UMTS Data

transfer

Band II @+21dBm Band V @+10dBm Band V @+23dBm Band VIII @+10dBm Band VIII @+23dBm Band I @+10dBm Band I @+23dBm Band II @+10dBm

HSDPA Data transfer

Band II @+23dBm Band V @+10dBm Band V @+23dBm Band VIII @+10dBm Band VIII @+23dBm Band I @+10dBm Band I @+23dBm Band II @+10dBm

HSUPA Data transfer

Band II @+23dBm Band V @+10dBm Band V @+23dBm Band VIII @+10dBm Band VIII @+23dBm

Note 1˖Mode 1: UART Suspend/USB Suspend˗

Mode 2: UART Suspend/USB Active˗ Mode 3: UART Active/USB Suspend˗ Mode 4: UART Active/USB Active˗

Note 2: Unless otherwise noted, the test conditions of the data in the Table 3-4 are: VCC_3V3=3.3VDC, T=2󰀘ćǄ

214 529 308 535 295 591 299 530 356 592 382 605 385 680 377 615 360 579 396 597 391 3 385 576

0 5 738 5

mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA

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3.5.3 Power-On Process

After being uploaded with power, the EM770W UMTS M2M wireless module can be switched on.

3.6 Reliability Characteristics

Table 3-6shows the reliability test conditions and result of the EM770W UMTS M2M wireless module.

Table 3-6 Summary of reliability test conditions

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EM770W UMTS M2M Wireless Module

Product Description

3.7 ESD feature

3.7.1 General

The user must be protected against the ESD discharges, when you use the EM770W

module.EM770W has been tested according to group standard EN 61000-4-2 (see Table 3-7). The measured values can be gathered from the following table. Table 3-7 Measured electrostatic values

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3.7.2 USIM

The ESD reference protective circuit of the SIM card interface for EM770W UMTS M2M wireless module as Figure 3-1.In that, the TVS diode should be put close to the SIM card, the SIM card reference circuit as Figure 4-6.

Figure 3-1 Reference circuit diagram of USIM card port ESD protect

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4 4.1 About This Chapter

z z z z z z z

Interface Usage

This chapter describes the usages of the interfaces of the EM770W UMTS M2M wireless module, including:

UART Interface USIM Card Interface Audio Interface Power Supply Interface USB Bus

LED Status Indicator Reset Interface

4.2 UART Interface

The EM770W UMTS M2M wireless module supports two UART interfaces. UART1 can work in full-serial port mode with the flow control function. UART1 does not support DSR signals indicating that the Data Connection Equipment (DCE) is ready for receiving data. UART3 can work in 5-wire serial port mode. The full-serial port UART1 supports data

services. You can initiate the Point-to-Point Protocol (PPP) dialup from UART1 and use data services. UART3 does not support data services. UART3 cannot send or receive AT commands but can send and receive DIAG commands. The UART interfaces support the following:

z z z z z

Programmable data width Programmable data stop bit

Programmable parity check or no check Different baud rates Default rate of 115.2 bit/s

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Figure 4-1 Diagram of the UART1 connections between the DCE and DTE

Table 4-1 shows the definitions for the signals of UART1. Table 4-1 Signals of UART1 No.

Signal

Description

Feature

The Data Terminal

Equipment (DTE) receives serial data.

The DTE sends serial data.

Direction DCE-DTE

13 UART1_TX Module data

sending 11 UART1_RX Module data

reception

DTE-DCEDCE-DTEDCE-DTEDTE-DCEDTE-DCEDCE-DTE

17 UART1_R Ringing indication The DTE is notified of

of the module remote calls. 25 40 38 42

UART1_RFR UART1_DTR UART1_CTS UART1_DCD

Module RFR signal Module DTR signalModule CTS signal Module DCD signalGround

The DTE notifies the DCE

of sending requests. The DTE is ready. The DCE switches to the receiving mode. Data links are connected.

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Figure 4-2 Diagram of the UART3 connections between the DCE and DTE

Table 4-2 Signals of UART3 No.

Signal

Description

Feature

Direction DCE-DTEDTE-DCEDTE-DCEDCE-DTE

30 UART3_RFR Module RFR The DTE notifies the DCE of

signal sending requests. 32 UART3_CTS Module CTS The DCE switches to the signal receiving mode. 44 UART3_RX Module data The DTE sends serial data. reception 46 UART3_TX Module data The DTE receives serial data.

sending GND Attention:

Ground

The EM770W UMTS M2M wireless module is connected to a 3 V microcontroller. 4.7K ohm resistors need to be added between the five module receiving pins.

Figure 4-3 Diagram of the connections between the serial ports of the module and the 3 V microcontroller

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A Category 232 chip should be used to connect the EM770W module to a standard RS-232-C interface. In case of a 3-wire serial port, the MAX3232 chip is recommended. The UART1-RX of the module connects to the TXD pin of the DTE after being converted through the

MAX3232 chip, and the TXD of the DTE connects to the UART1_TX pin of the module after being converted through the MAX232 chip. Figure 4-4 Connection diagram of the 3-wire serial port

In case of a full-serial port, the MAX3232, SP3238, or MAX3238 chip is recommended. Figure 4-5 Diagram of the electrical connections of the 8-wire flow control serial port

To connect the RING pin to a LED, it is recommended that the base of a transistor should be connected to the output end of a Category 232 chip, and the voltage is about 10 V, and the

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level is also converted. In this manner, the LED flashes only when a short message is received or a call comes in.

4.3 USIM Card Interface

The EM770W UMTS M2M wireless module can be connected to the USIM card of 3.0 V or 1.8 V. The module supports high-speed transmission. Table 4-3 shows the signals of the USIM card interface. In the case of a USIM card interface, the level is 3.0 V or 1.8 V, and the capacitance is 33 pF.

Table 4-3 Pins of the USIM card interface No. 8 14 12 10

Signal VREG_USIM_C USIM_RST_C USIM_CLK_C USIM_IO_C

Description USIM card power

Reset signal of the USIM card Clock signal of the USIM card Data lines of the USIM card

GND GND Ground

Figure 4-6 Circuit diagram of the USIM card interface

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Figure 4-7 Sequence of the pins of a USIM card

Figure 4-8 Sequence of the pins of a USIM card seat

In the USIM card seat, pin 4 connects to the USIM-CD pin and pin 5 connects to the GND pin to detect whether the USIM card is in service. In the EM770W module, this method is not applied.

The typical rate of a USIM card interface is about 3.25 MHz. Therefore, the USIM card seat should be near the module interface, with a line length no longer than 10 cm. This prevents the communication quality of signals from being affected by serious waveform distortion because of too long cables. Ground cables must be used to shield the cables of USIM-CLK and USIM-IO signals.

Add the 0.1 OF or 0.22 OF capacitance for the USIM-VCC, and the 33 pF capacitance for the USIM-CLK, USIM-IO, and USIM-RESET based on the GND network, to filter out

interferences of antenna signals. To provide protection against electrostatic discharge, place a transient voltage suppressor (TVS) for the four signals.

4.4 Audio Interface

The EM770W UMTS M2M wireless module provides one handset audio I/O interface. Table 4-4 shows the description of signals. Table 4-4 Signals of the audio interface No. 1 3 5

Signal MICP MICN EARP

I/O Description I I O

Positive pole of the audio input signal of the first channel Negative pole of the audio input signal of the first channel Positive pole of the audio output signal of the first channel

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No. 7

Signal EARN

I/O Description O

Negative pole of the audio output signal of the first channel

The signals that the first audio I/O channel transmits are completely differential and have good performance of resisting the radio-frequency interference. The audio I/O interface can be connected to the handset without requiring any audio amplifier.

If audio signals are in differential pairs, cables on the printed circuit board (PCB) should be equidistantly laid in parallel with each other. The cables should be short, the filter circuits of the two sides should be symmetric, the differential pair signals should be close to each other, and the grounding is also required. The output audio differential pair signals and the input audio differential pair signals are separated effectively through grounding. In addition, the signals should be away from circuits of power supply, RFs, and antennas.

Differentiate and separate functional modules during PCB design of the EM770W UMTS M2M wireless module.

Figure 4-9 Circuit diagram of the MIC and EAR interface

Differential signals are transmitted in the audio channel of the first line. By reserving a place for the resistor in the loop, you can adjust the quality and volume of the voice. It is

recommended that you place a TVS on the related interface, to provide protection against electrostatic discharge and protect components such as the internal integrated circuit (IC) components.

The audio output I/O channel can be drive the handset of 32ohm, if you want to drive the speaker of 8ohm, need to add the audio amplifier.

4.5 Power Supply Interface

The external power supply ranging from 3 V to 3.6 V (3.3 V of the typical value) is provided to the EM770W UMTS M2M wireless module. If the network signal strength is very weak and the antenna transmits signals with the highest power, the maximum transient current of the module can reach 1.6 A. The low-dropout voltage regulator (LDO) or switching power supply with the current over 1.6 A is recommended.

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Considering the voltage drop that may occur during the GSM transmission with high power, you can add a large super capacitance at the power supply port of the module. The capacitor of over 2200uF is recommended.

Figure 4-10 Reference circuits for the design of the switching power supply

Figure 4-11 Reference circuits for the design of the LDO power supply

The loop of the switching power supply generates strong electromagnetic compatibility (EMC) interference. Therefore, the switching power supply should be away from antennas.

4.6 USB Bus

The EM770W UMTS M2M wireless module provides a high-speed USB 2.0 interface. Working with the driver, the USB interface can be mapped to a port on a PC.

The USB interface is mainly used to update and test module programs, and find software bugs. It can also be used for second-time development. In this case, the peer operating system (OS) needs to support the USB driver.

The VID (vender ID) of USB driver of EM770W module is 0x12D1, and the PID (product ID) is 0x1001.There are three USB interfaces mapped on the PC when EM770W powers on with USB cable:

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1. 3G Modem interface for carries AT service, mainly used in data service.

2. 3G PC UI interface for carries AT service, mainly used to send AT commands when EM770W module is in data service and 3G Modem interface is occupied.

3. 3G Application Interface for carried DIAG service, can connect Qualcomm tools QPST and QXDM to fetch logs, and update firmware of Em770W module.

The VBUS pin is used to connect the USB power cable. After being converted by the power circuit, the power from the USB power cable can provide 3.3 V power to the module. Figure 4-12 Reference circuits for the design of the USB interface

Note 4: They are recommended that the varistors in Figure 4-11, RV102 and RV103, are <5pF capacitance type. The reference types can be ALVC18S02003 of AMOTECH Corporation and B72590T7900V60 of EPCOS Corporation.

Attention: please pay attention to that the USB protocol prescribes the current of the USB interface can't exceed 500mA, so when using the USB interface to supply power, you must add the circuit to restrict the current of 500mA.

4.7 LED Status Indicator

The EM770W UMTS M2M wireless module provides a LED_WWAN pin, which can

indicate the LED status. You can adjust R in Figure 4-13 to adjust the brightness of the LED. Figure 4-13 Reference circuits for the design of the status indicator

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4.8 Reset Interface

The EM770W UMTS M2M wireless module provides a reset pin PERST_N. Connecting to the external reset circuit, the pin can help to implement hard reset of the module. Figure 4-14 Timing of Reset signal

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5 5.1 About This Chapter

z z

Structure

This chapter describes the mechanical structure and outline dimensions of the EM770W UMTS M2M wireless module, including:

Outline Dimensions of the EM770W UMTS M2M Wireless Module Outline Dimensions of the Mini PCI Express Interface

5.2 Outline Dimensions of the EM770W UMTS M2M Wireless Module

Dimensions: 30f0.20x 50.9f0.20x4.7f0.20 mm Weight: 11.5f0.3g

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Figure 5-1 Diagram of the outline dimensions of the EM770W UMTS M2M wireless module

Unit: mm

5.3 Outline Dimensions of the Mini PCI Express Interface

The EM770W UMTS M2M wireless module adopts the universal Mini PCI Express interface as the external interface. Figure 5-2 shows the outline dimensions of the universal Mini PCI-E card

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Figure 5-2 Outline dimensions of the universal Mini PCI-E card

On the user board, the female Mini PCI-E connector of Molex is recommended. The module of the connector is MPC24-52K3311.

Figure 5-3 Mini PCI-E connector used with the EM770W module on the user board

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A BTS CSD DTR

Acronyms and Abbreviations

AMR Adaptive Multirate BER Bit Error Rate

Base Transceiver Station Circuit Switched Data

DCE Data circuitˉterminating equipment DTE Data terminal equipment

Data Terminal Ready

DTX Discontinuous Transmission EFR EGSM

Enhanced Full Rate Enhanced GSM

EMC tic ElectromagneCompatibility ESD Electrostatic Discharge FR Frame Relay GMSK GPRS GSM

Gaussian Minimum Shift Keying General Packet Radio Service

Global Standard for Mobile Communications

HR Half Rate

EC nternational Electrotechnical Commission ME nternational Mobile Equipment dentity I/O

Input/Output

SO nternational Standards Organization TU nternational Telecommunications Union

Issue 1.12 (2009-07-24)

Huawei Proprietary and Confidential

Page 37 of 38

EM770W UMTS M2M Wireless Module

Product Description

kbps LED M2M MO

kbits per second Light Emitting Diode Machine to machine Mobile Originated

MT Mobile Terminated NTC

Negative Temperature Coefficient

PC Personal Computer PCB PCI PCM

Printed Circuit Board

Peripheral Component Interconnect Pulse Code Modulation Power Control Level

PCL

PCS ication Personal CommunSystem PDU Packet Data Unit

PPP Point-to-point protocol PS Packet Switched QPSK

Quadrate Phase Shift Keying

TCP/P nternet Transmission Control Protocol/ IProtocol RTC

Real Time Clock

UART us Universal asynchronoreceiver-transmitter USIM UMTS USB VSWR

User Service Identified Module

Universal Mobile Telecommunications System Universal Serial Bus Voltage Standing Wave Ratio

Issue 1.12 (2009-07-24)

Page 38 of 38

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