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M910-GL Hardware User Manual Page 6 of 45
Name of manufacturer:
Fibocom Wireless Inc.
Address:
5/F,Tower A,Technology Building II,1057 Nanhai Avenue
Zip code & City:
Shenzhen
Country:
China
Telephone number:
+86 755 26525092
Product description:
LTE(CatM1, NB-IoT) Module
Type designation(s):
M910-GL
Trademark:
Fibocom
Batch / Serial number:
EN 301 489-1 V2.1.1; EN 301 489-19 V2.1.0;
EN 301 489-52 V1.1.0; EN 303 413 V1.1.1
EN 301 511 V12.5.1; EN 301 908-1 V11.1.1
EN 301 908-13 V11.1.2
EN 62311:2008
EN 60950-1:2006+ A11:2009 + A1:2010 + A12:2011 + A2:2013
1.5EU Declaration of Conformity (DoC)
Hereby we,
declare that this DoC is issued under our sole responsibility and that this product:
Object of the declaration (further identification of the radio equipment allowing
traceability; it may include a color image for the identification of the radio equipment):
is in conformity with the relevant Union harmonization legislation:
Radio Equipment directive: 2014 / 53 / EU
with reference to the following standards applied:
The Notified Body SGS United Kingdom Limited, with Notified Body number 0890
performed:
Modules: B+C and issued the EU-type examination certificate.
Signed: Printed name: Yin Jixiong
Place and date of issue:2018-07-24
On behalf of Company name: Fibocom Wireless Inc.
Position within Company: Regulatory Principal Engineer
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M910-GL Hardware User Manual Page 7 of 45
1.6 Federal Communication Commission Interference
Statement
Changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation.
If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
-- Consult the dealer or an experienced radio/TV technician for help.
This device complies with FCC radiation exposure limits set forth for an uncontrolled
environment. In order to avoid the possibility of exceeding the FCC radio frequency
exposure limits, human proximity to the antenna shall not be less than 20cm (8 inches)
during normal operation.
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.
This transmitter must not be co-located or operating in conjunction with any other antenna
or transmitter.
This device is intended only for OEM integrators under the following conditions:
1) The antenna must be installed such that 20 cm is maintained between the antenna and
users, and the Max allowed antenna gain is as following table showed:
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M910-GL Hardware User Manual Page 8 of 45
Operating Band
Antenna Gain(dBi)
GSM850
5.46
GSM1900
3
LTE-M1 BAND 2
9.5
LTE-M1 BAND 4
6.5
LTE-M1 BAND 12
12.94
LTE-M1 BAND 13
13.42
LTE-M1 BAND 26(814-824)
11.65
LTE-M1 BAND 26(824-849)
14.46
LTE-NB1 BAND 2
9.5
LTE-NB1 BAND 4
6.5
LTE-NB1 BAND 12
12.95
LTE-NB1 BAND 13
13.42
LTE-NB1 BAND 26(814-824)
11.65
LTE-NB1 BAND 26(824-849)
14.46
2) The transmitter module may not be co-located with any other transmitter or antenna.
As long as 2 conditions above are met, further transmitter test will not be required.
However, the OEM
integrator is still responsible for testing their end-product for any additional compliance
requirements
required with this module installed
Host manufacturer is responsible for ensuring that the host continues to be compliant
with the Part 15 subpart B unintentional radiator requirements after the module is
installed and operational.
IMPORTANT NOTE: In the event that these conditions can not be met (for example
certain laptop configurations or co-location with another transmitter), then the FCC
authorization is no longer considered valid and the FCC ID can not be used on the final
product. In these circumstances, the OEM integrator will be responsible for re-evaluating
the end product (including the transmitter) and obtaining a separate FCC authorization.
End Product Labeling
This transmitter module is authorized only for use in device where the antenna may be
installed such that 20 cm may be maintained between the antenna and users. The final
end product must be labeled in a visible area with the following: “
ZMOM910GL”
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M910-GL Hardware User Manual Page 9 of 45
Contains FCC ID:
.The grantee's FCC ID can be used only when all FCC compliance
requirements are met.
Manual Information To the End User
The OEM integrator has to be aware not to provide information to the end user regarding
how to install or remove this RF module in the user’s manual of the end product which
integrates this module. The end user manual shall include all required regulatory
information/warning as show in this manual.
1.7 IC Statement
This device complies with Industry Canada license-exempt RSS standard(s). Operation is
subject to the following two conditions: (1) this device may not cause interference, and (2)
this device must accept any interference, including interference that may cause undesired
operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils
radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1)
l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter
tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en
compromettre le fonctionnement.
Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance
20cm between the radiator & your body.
Déclaration d'exposition aux radiations:
Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies
pour un environnement non contrôlé. Cet équipement doit être installé et utilisé avec un
minimum de 20 cm de distance entre la source de rayonnement et votre corps.\
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
The Innovation, Science and Economic Development Canada certification label of a
module shall be clearly visible at all times when installed in the host device; otherwise,
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M910-GL Hardware User Manual Page 10 of 45
the host device must be labeled to display the Innovation, Science and Economic
Development Canada certification number for the module, preceded by the words
“Contains transmitter module IC: 21374-M910GL
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M910-GL Hardware User Manual Page 11 of 45
Specification
Operating
frequency band
LTE FDD : B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B26/B28
LTE TDD : B39 (Cat.M1 only)
GSM : GSM850/GSM900/DCS1800/PCS1900
Data transmission
LTE features
Support Cat.M1 and Cat.NB1
Cat.M1: The maximum uplink rate 375kbps, the
maximum downlink rate 375kbps
Cat.NB1: The maximum uplink rate 70kbps, the
maximum downlink rate 32kbps
GSM features
GPRS: the maximum downlink rate 107kbps, the
maximum uplink rate 85.6kbps
EDGE: The maximum downlink rate 296kbps, the
maximum uplink rate 236.8kbps
Power supply
voltage
3.3V~4.3V (3.8V recommended)
Temperature
Normal: -30°C~+75°C
Extended: -40°C ~+85°C
Storage: -40°C ~+85°C
Physical
characteristics
Package: LGA 120Pin
Size: 27.6×25.4×2.3 mm
Weight: TBD
Interface
Antenna
Antenna:
Main x 1、GNSS x 1
2 Product Overview
2.1 Product Introduction
The M910-GL is a multi-mode (LTE Cat.M1, LTE Cat.NB1 and EGPRS) IoT wireless
communication module that supports half-duplex LTE and GSM. It can provide data connection in
LTE-FDD, LTE-TDD, GPRS and EGPRS networks, and also supports GNSS and VOLTE (LTE
Cat.M1).
2.2 Product Specifications
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M910-GL Hardware User Manual Page 12 of 45
Functional
interface
USIM 3.0V/1.8V
USB 2.0 x 1
UART, SIM, PCM, I2C
System Indicator
Clock
ADC
Software
Protocol Stack
Support PPP/TCP/UDP/SSL/TLS/FTP(S)/HTTP(S) protocols
AT Command
3GPP TS 27.007 and 27.005, and proprietary FIBOCOM AT
Firmware update
FOTA
Voice service
Support
SMS
Text and PDU mode; point-to-point SMS; SMS broadcast
MMS service
TBD
Note:
When the temperature is beyond the normal operating temperature range (-30 °C to +
75 °C), the RF performance of the module may slightly exceed the 3GPP specifications.
2.3 Hardware Diagram
Figure 2-1 hardware diagram shows the main hardware features of the M910-GL module.
PMIC
MCP
Clock
Function interface
Transceiver
RF PA
RF filter
RF switch
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M910-GL Hardware User Manual Page 13 of 45
PMIC
Baseband
Control
19.2M
xo
Transceiver
NAND
DDR2
IQ
POWER
GPIOUarts
PCM
IIS
USIMIICUSBV180
LED
EMG_
RST
ADC
A_ON
2G PA+SWITCHLTE PA
BATT+
TX RXTX
LNA
SAW
RF_OUTGNSS_OUT
Figure 2-1 Hardware Diagram
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M910-GL Hardware User Manual Page 14 of 45
3 Application Interface
3.1 LGA Interface
M910-GL module adopts LGA packaging with a total of 120 pins. It can be applied to the client’s
wireless application platform. The function of interface:
Power supply
Power on/off, reset
interface
interface
interface
I2C interface
Status indication interface
Emergency download interface
3.1.1 Pin Distribution
Figure 3-1 Pin Distribution Diagram
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M910-GL Hardware User Manual Page 15 of 45
Pin
Pin Name
I/O
Level
Description
1
DNC
-
- 2
DNC
-
-
3
GND
G-Ground
4
BATT+
I
3.8V
RF PA power input(3.3V-4.3V)
5
GND
G-Ground
6
ADC
I-Analog input
7
ON
I
1.8V
High level power-on control pin;
can be floating
8
GND
G-Ground
9
V180
O
1.8V
Module digital level, 1.8V
output, 80mA
10
RXD0
I
1.8V
Serial interface signal
11
CTS0
O
1.8V
Serial interface signal
12
TXD0
O
1.8V
Serial interface signal
13
RING0
O
1.8V
Serial interface signal
14
RTS0
O
1.8V
Serial interface signal
15
DNC
-
- 16
CCRST
O
1.8V or 3.0V
SIM reset signal line
17
CCIN
O
1.8V
SIM card hot plug detection
18
CCIO
O
1.8V or 3.0V
SIM data signal line
107
GPIO14
I/O
1.8V
GPIO
19
GPIO13
I/O
1.8V
GPIO
20
CCVCC
O
1.8V or 3.0V
SIM power supply
21
CCCLK
O
1.8V or 3.0V
SIM clock signal line
22
DNC
-
23
TXDDAI
O
1.8V
Digital voice interface
24
TFSDAI
IO
1.8V
Digital voice interface
25
RXDDAI
I
1.8V
Digital voice interface
Note: It is recommended that the heat sink pad is reserved for the PCB packaging and
welded.
3.1.2 Pin definition
The pin definitions are as shown in the following table:
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M910-GL Hardware User Manual Page 16 of 45
Pin
Pin Name
I/O
Level
Description
26
SCLK
I/O
1.8V
Digital voice interface
27
I2CDAT
OD-I2C interface data signal
28
I2CCLK
OD-I2C interface clock signal
29
TXD1
O
1.8V
Serial interface signal
30
RXD1
I
1.8V
Serial interface signal
31
RTS1
O
1.8V
Serial interface signal
32
CTS1
O
1.8V
Serial interface signal
33
EMG_RST
I
1.8V
Module reset signal
34
GPIO12
I/O
1.8V
GPIO
108
GPIO11
I/O
1.8V
GPIO
35
GND
G-Ground
36
GNSS
I-GNSS antenna interface
37
GND
G-Ground
38
DNC
-
- 39
GND
G-Ground
40
DNC
-
- 41
DNC
-
- 42
DSR0
43
DCD0
O
1.8V
Serial interface signal
44
DTR0
I
1.8V
Serial interface signal
45
VBUS
I
1.8V
USB plug detect signal
46
USB_DP
I/O
USB 2.0
Specification
USB differential data positive
signal
47
USB_DM
I/O
USB 2.0
Specification
USB differential data negative
signal
48
DNC
-
- 49
DNC
-
-
50
GND
G-Ground
51
LED
OD-Network indicator
52
DNC
-
- 109
PWM1
O
1.8V
Adjustable pulse signal
110
GPIO8
I/O
1.8V
GPIO
53
BATT+
I
3.8V
PMIC power input(3.3V-4.3V)
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M910-GL Hardware User Manual Page 17 of 45
Pin
Pin Name
I/O
Level
Description
54
GND
G-Ground
55
GND
G-Ground
56
GND
G-Ground
57
GND
G-Ground
58
GND
G-Ground
59
RF_OUT
I/O Main antenna interface
60
GND
G-Ground
61
GND
G-Ground
62
GND
G-Ground
63
GND
G-Ground
64
GND
G-Ground
65
DNC
-
- 66
DNC
-
-
111
DNC
-
- 112
GPIO15
I/O
1.8V
GPIO
67
DNC
-
- 68
DNC
-
- 69
DNC
-
- 70
DNC
-
-
71
DNC
-
-
72
A_ON
I
1.8V
Power on/off signal; low level
power on /off
73
DNC
-
- 74
DNC
-
-
75
DNC
-
- 76
DNC
-
-
77
DNC
-
-
78
DNC
-
-
79
A_ON
I
1.8V
Power on/off signal; low level
power on /off
80
DNC
-
-
81
GND
G-Ground
82
GND
G-Ground
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M910-GL Hardware User Manual Page 18 of 45
Pin
Pin Name
I/O
Level
Description
83
GND
G-Ground
84
GND
G-Ground
85
GND
G-Ground
86
GND
G-Ground
87
DNC
-
- 88
GND
G-Ground
89
GND
G-Ground
90
GND
G-Ground
91
DNC
-
-
92
GND
G-Ground
93
GND
G-Ground
94
GND
G-Ground
95
GND
G-Ground
96
GND
G-Ground
97
GND
G-Ground
98
DNC
--CLK
99
GND
G-Ground
100
GND
G-Ground
101
GND
G-Ground
102
GND
G-Ground
103
GND
G-Ground
104
DNC
--MISO
105
DNC
--MOSI
106
DNC
--SSN
113
GND
G-Ground
114
DNC
-
- 115
DNC
-
-
116
DNC
-
- 117
DLI1.8V
Emergency download point
118
GND
G-Ground
119
GND
G-Ground
120
GND
G-Ground
M910-GL Hardware User Manual Page 19 of 45
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Pin Name
I/O
Pin
Description
BATT+
I
4,53
Module power supply, 3.3 ~
4.3, nominal value 3.8V
V180
O 9 Voltage Output, 1.8V, 80mA
GND
-
Ground
Parameter
Minimum
Typical
Maximum
Unit
V180
1.71
1.8
1.89
V
V
IH
1.3
1.8
1.89
V
V
IL
-0.300.5
V
Note:
DNC pins remain floating.
3.2 Power Supply
The power interfaces of M910-GL module are as shown in the following table:
3.2.1 Power Supply
The power supply range of the M910-GL module is 3.3V-4.3V.
While ensuring the sufficient BATT + power supply capacity (2A load), the design shall follow:
Connect a 100uF low-ESR (less than 0.5Ω) ceramic voltage-stabilizing capacitor near the BATT +
input. Since the price of small sized high-capacity ceramic capacitor is higher, it is recommended
to replace it with a 220uF tantalum capacitor, and then connect a 0.1uF ~ 1uF ceramic capacitor.
3.2.2 1.8V Output
The M910-GL outputs a 1.8V voltage using for the internal digital circuit of the module. The
voltage is the IO level voltage of the module and can be used to indicate that the module is on or
off, or for external low current (<80mA) circuit. If it is not in use, keep it in floating status. The
logic level of V180 is defined as follows:
3.2.3 Power consumption
In the case of 3.8V power supply , the power consumption of M910-GL module is shown in the
following table:
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M910-GL Hardware User Manual Page 20 of 45
Parameter
Mode
Condition
Average
Typ.Current(m
A)
I
off
Power off
Module power off
0.008
Isleep
PSM
0.01
e-DRX TBD
Iidle
RRC_Idle <5mA
RRC_Connect
<42 mA
I
GPRS-RMS
CS4
GPRS
GPRS Data transfer GSM850; PCL=5; 1Rx/4Tx
513
GPRS Data transfer GSM900; PCL=5; 1Rx/4Tx
510
GPRS Data transfer DCS1800; PCL=0;
1Rx/4Tx
409
GPRS Data transfer PCS1900; PCL=0; 1Rx/4Tx
381
I
EGPRS-RMS
MCS9
EDGE
EDGE Data transfer GSM850; PCL=8; 1Rx/4Tx
437
EDGE Data transfer GSM900; PCL=8; 1Rx/4Tx
468
EDGE Data transfer DCS1800; PCL=2;
1Rx/4Tx
400
EDGE Data transfer PCS1800; PCL=2;
1Rx/4Tx
383
I
LTE-RMS
LTE FDD
LTE FDD B1 @+23dBm
Cat.M1: 222
Cat.NB1: 272
LTE FDD B2 @+23dBm
Cat.M1: 223
Cat.NB1: 304
LTE FDD B3 @+23dBm
Cat.M1: 218
Cat.NB1: 336
LTE FDD B4 @+23dBm
Cat.M1: 216
Cat.NB1: 332
LTE FDD B5 @+23dBm
Cat.M1: 224
Cat.NB1: 267
LTE FDD B8 @+23dBm
Cat.M1: 241
Cat.NB1: 275
LTE FDD B12 @+23dBm
Cat.M1: 249
Cat.NB1: 308
LTE FDD B13 @+23dBm
Cat.M1: 229
Cat.NB1: 282
LTE FDD B17 @+23dBm @NB only
Cat.NB1: 306
LTE FDD B18 @+23dBm
Cat.M1: 221
Cat.NB1: 262
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M910-GL Hardware User Manual Page 21 of 45
Parameter
Mode
Condition
Average
Typ.Current(m
A)
LTE FDD B19 @+23dBm
Cat.M1: 221
Cat.NB1: 263
LTE FDD B20@+23dBm
Cat.M1: 219
Cat.NB1: 253
LTE FDD B26@+23dBm
Cat.M1: 220
Cat.NB1: 279
LTE FDD B28@+23dBm
Cat.M1: 245
Cat.NB1: 298
LTE TDD
LTE TDD B39 @+23dBm @eMTC only
Cat.M1: TBD
Pin name
I/O
Pin
Description
EMG_RST
I 33
When the module is in work, give it a Tst (150 ~ 460ms) low level,
and then pull it high, the module is reset
Note:
PSM: The M910-GL module can further reduce its own power consumption by entering the
PSM. PSM is similar to switch off, but the module is still registered on the network. After
waking up from PSM mode, the module does not need to reattach or reestablish a PDN
connection. Therefore, after the module enters the PSM, it can not immediately respond to
user requests. When the module needs to use the PSM, it will request an activity time value
during each attach and TAU process. If the network side supports PSM and accepts the
module to use the PSM, then the network confirms PSM usage by assigning the module an
activity time value. If the module wants to change the activity time value, for example
when the conditions in the module change, the module will request the desired value during
the TAU.
If the network side supports PSM, PSM function can be enabled by AT command.
Wake up the module from the PSM state as follows:
1. Pull PWRKEY pin to low level to wake up the module;
2. Wait for the timer (T3412) overflow, the module will automatically wake up.
3.3 Control Signal
The M910-GL module provides two control signals for power on/off and reset operations. The pin
definitions are as follows:
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M910-GL Hardware User Manual Page 22 of 45
A_ON
I 72\79
When pulling down the level to power on, the shortest duration of
low level is 100ms, and when pulling down the level to power off,
the minimum duration is 2s
3.3.1 Module start-up
3.3.1.1.1 Start-up circuit reference
When the M910-GL module is in shutdown mode, the module will start up by pulling down A_ON for
at least 100ms. It is recommended to use open-drain drive circuit for control. The reference circuit is
shown in Figure 3-2:
Figure 3-2 Open Set Reference Start-up Circuit
Another control method is to directly control through a button, and place a TVS near the button
for ESD protection. The reference circuit is shown in Figure 3-3:
Figure 3-3 Button Start-up Reference Circuit
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M910-GL Hardware User Manual Page 23 of 45
Shutdown
Mode
Shutdown Method
Applicable scenarios
Low-voltage
shutdown
When BATT + powers down,
the module will shut down
The module does not shut down through normal
process, i.e. logout process from the base station
Hardware
shutdown
Pull down A_ON (more
than1. 5s)
Normal shutdown
AT shutdown
TBD
3.3.1.2 Start-up timing
The start-up timing is shown in Figure 3-4:
Figure 3-4 Start-up Timing Control Diagram
Note:
Before pulling down the A_ON pin, make sure the BATT + voltage is stable. It is
recommended that the interval between powering up BATT + and pulling down A_ON pin
should not be less than 100ms.
3.3.2 Module shutdown
The module supports the following three shutdown modes:
Figure 3-5 Shutdown Timing Control Diagram
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M910-GL Hardware User Manual Page 24 of 45
3.3.2.1 Shutdown Timing
1. When the module is working properly, do not cut off the power to the module immediately to
avoid damaging the internal Flash of the module. It is strongly recommended to shut down the
module by A_ON or AT command before disconnecting the power supply.
2. When using the AT command to shut down, make sure that the A_ON is in a high level state
after the shutdown command is executed, otherwise the module will start up again after the
shutdown is completed.
3.3.3 Module reset
M910-GL module can reset by hardware and AT command.
3.3.3.1 Reset circuit
Refer to Figure 3-6 and Figure 3-7. It is similar to the start-up/shutdown control circuit. The client
can control the EMG_RST pin using an open-drain drive circuit or push button.
Figure 3-6 EMG_RST Reset Open Reference Circuit
Figure 3-7 EMG_RST Reset Button Reference Circuit
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M910-GL Hardware User Manual Page 25 of 45
3.3.3.2 RESET control timing
Pin Name
I/O
Pin
Description
USB_DN
I/O
47
USB differential data bus
USB_DP
I/O
46
USB differential data bus
VBUS
I
45
USB plug detection; 1.8V input level
Figure 3-8 Reset Control Timing
Note:
RESET is a sensitive signal, so it is recommended to add a filter capacitor close to the
module. In case of PCB layout, the RESET signal lines should keep away from the RF
interference and be protected by nice Ground. Also, the RESET signal lines shall be
neither near the PCB edge nor route on the surface planes to avoid module from reset
caused by ESD problems.
Software reset: TBD
3.4 USB Interface
The M910-GL provides a USB interface that conforms to the USB 2.0 specification and supports
high-speed (480Mbps) and full-speed (12Mbps) modes. The USB interface can be used for AT
command transmission, data transmission, software debugging and software upgrades.
For more information about the USB 2.0 specification, visit http://www.usb.org/home.
3.4.1 USB interface definition
We recommend that clients reserve USB interface for software upgrades.
Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
M910-GL Hardware User Manual Page 26 of 45
Pin Name
I/O
Pin
Description
CCRST
I/O
15
RESET Signal
CCIN
(USIM_DET)
O
17
Detect USIM/SIM card
for Hot-swap
CCIO
O
18
Data Signal
CCVCC
O
20
Power
CCCLK
I
21
Clock Signal
In the design of USB interface circuit, in order to ensure the USB performance, the following
principles are recommended in circuit design:
1) The USB data lines need to be grounded, with 90Ω impedance differential cable;
2) Do not take the USB cable under the crystal, oscillator, magnetic device or RF signal. It is
recommended to take the inner differential cable and the cable shall be grounded at all directions;
3) The model selection for ESD protection of USB data cable requires special attention, and the
parasitic capacitance must not exceed 2pF;
4) ESD protector of USB should be placed close to the USB interface.
5) As a USB plug-in testing, the input level of VBUS does not exceed 1.8V, and VBUS connects
USB USB_VBUS pin through the partial pressure resistor.
3.5 USIM Interface
M910-GL module supports the USIM card interface (1.8V and 3.0V cards).
3.5.1 USIM pin
USIM pin is shown in the following table:
3.5.2 USIM interface circuit
3.5.2.1 SIM card slot with detection signal
USIM/SIM design requires the use of SIM card slot (Fibocom recommend: SIM016-8P-220P). We
recommend using hot plug holder with SIM_DECTECT feature.
M910-GL Hardware User Manual Page 27 of 45
Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
Figure 3-9 SIM Card Slot Diagram SIM016-8P-220P
Figure 3-10 M910-GL USIM/SIM Interface with Detection Reference Design
Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
M910-GL Hardware User Manual Page 28 of 45
Pin Name
I/O
Pin
Description
RXD0
I
10
Serial interface RXD
CTS0
DO
11
Serial interface CTS
TXD0
O
12
Serial interface TXD
RING0
DO
13
Serial interface RI
Principles of SIM card slot with detection signal are as follows:
SIM card is plugged, CCIN is high level
SIM card is unplugged, CCIN is low level
For SIM card slot without detection signal, CCIN remains floating.
Note:
SIM card hot plug feature can be enabled by AT command for logic level control. Please
refer to the AT command manual for the specific AT command.
3.5.3 USIM design requirements
SIM card circuit design shall meet EMC standards and ESD requirements, and at the same time, it
shall improve anti-interference ability to ensure that the SIM card can work stably. The design
needs to strictly observe the following rules:
SIM card slot is placed as close to the module as possible, away from the RF antenna, DCDC
power, clock signal lines and other strong interference sources;
Adopt the SIM card slot with metal shield shell to improve anti-interference ability;
The length of cable from the module to the SIM card slot shall not exceed 100mm. Longer
cable reduces signal quality.
CCCLK and CCIO signals are isolated to avoid mutual interference. If it is difficult to do so,
SIM signal needs to be protected as a set;
The filter capacitor and ESD device of SIM card signal cable are placed close to the SIM