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Cellular Modules LTE CAT 6-18 LTE CAT 6-18 mPCIe

Telit LM960 LTE CAT-18, GPS, mPCIe

Article Number: 10819
Manufacturer: Telit
Supplier number: LM960AIW201T0W2000

The Telit LM960 Mini PCIe (mPCIe) data card delivers high speed data rates via Advanced LTE and offers a cellular connection for products in network appliance environments. This data card is well-suited for products that demand high throughput such as routers, mobile gateways and access points, to provide the most advanced 4G LTE connectivity, ensuring a rich and seamless user experience.

Based on LTE Category 18, the LM960 mPCIe data card achieves download rates up to 1.2 Gbps. It supports 4x4 MIMO, 5x downlink carrier aggregation and 2x uplink carrier aggregation. The product supports multiple RF frequency bands and band combinations to accommodate
global deployments.

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Currently production ready and certified for North America target region with firmware 32.00.041, on bands:
LTE: B2, B4, B5, B12, B14, B29, B30, B46, B66, UMTS/HSPA: 850, 1900 MHz.
FCC, IC, GCF and PTCRB certification plus AT&T operator approval completed.

Generic all bands enabled firmware only available for early testing and design in, this due to CE RED and Generic/EU firmware not yet finalized.

4x4 MIMO antenna information for Telit LM960:
There are two primary and two secondary antenna RF connectors for the cellular connectivity on the LM960 module.
The first set of primary and secondary antennas (#0) serve the lower and middle cellular bands while the second set of primary and secondary antennas (#1) serve the high and ultra high frequency bands.
Please ensure to match the antenna frequency range as specified in the Telit LM960 Hardware guide section 7 and 7.5 Antenna requirements and connections.

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UMTS Bands
B1 (2100)
B2 (1900)
B8 (900)
B4 (AWS)
B5 (850)
MIMO (Multiple-Input Multiple-Output)
Yes
LTE Bands
B1 (2100)
B3 (1800)
B7 (2600)
B8 (900)
B12 (700ac)
B13 (700c)
B14 (700PS)
B20 (800DD)
B25 (1900)
B42 (TDD 3500)
B38 (TDD 2600)
B40 (TDD 2300)
B43 (TDD 3600)
B26 (US 850 Ext)
B28 (700 APAC)
B29 (US 700de Lower)
B39 (TDD 1900)
B41 (TDD 2500)
B30 (2300 WCS)
B66 (AWS-3)
B32 (1500)
B46 (TDD 5200)
B48 (3600)
B71 (600)
Manufacturer
Telit
LTE Region
Europe
North America
Asia
Australia
APAC
Form Factor
mPCIe
Technology
LTE - cat 18
Antenna Interface
IPEX MHF-4
GPS
Yes
GNSS technology
GPS
GLONASS
BeiDou
Galileo
Max DL Speed
1200 Mbps
Max UL Speed
150 Mbps
Chipset
Qualcomm
SDX20
Operating Temperature Range
-40 °C – 85 °C
Driver Support
Linux
Windows 10
in kernel
Interface
USB 2.0
USB 3.0
Voice Call Support
No
GNSS antenna support
Passive
Active
SIM interface
Through miniPCIe connector
Dual SIM interface
Carrier Certification
AT&T
Extended Operating Temperature Range
-40 °C – 85 °C
Certification
FCC
RoHS
GCF
PTCRB
IC
Technical details:
Currently shipped with:
Host firmware version: 32.00.001 and default firmware version set to ATT operator config.
Generic: 32.00.011
ATT: 32.00.041

Should you not be able to detect the SIM card interface, please ensure that the hotswap feature is disabled if your host board do not implement the SIM detect pin routing. Do so by AT commands bellow, after module reboot it should work correctly.
AT#HSEN=0,0
AT#HSEN=0,1
AT#REBOOT

Datasheet for 10819 Telit LM960 CAT-18 mPCIe

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Uploaded at
2018-09-19 11:42:15
Last updated
2019-04-05 15:17:16
Version
12 2018
Related products
Telit LM960 LTE CAT-18, GPS, mPCIe

This guide describes the Telit LM960 cellular modules AT control commands available and supported

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Uploaded at
2018-11-07 16:01:23
Last updated
2018-12-03 09:33:47
Version
R1
Related products
Telit LM960 LTE CAT-18, GPS, mPCIe

This guide describes the Telit LM940 and LM960 series cellular modules accepted (raw) QMI commands.

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Uploaded at
2018-11-07 16:10:54
Last updated
2018-12-03 09:35:54
Version
R3
Related products
Telit LM940 LTE CAT-11, GPS, mPCIe
Telit LM960 LTE CAT-18, GPS, mPCIe

Software user guide for the Telit LM960 cellular module

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Uploaded at
2018-11-07 16:04:22
Last updated
2018-11-07 16:04:22
Version
R1
Related products
Telit LM960 LTE CAT-18, GPS, mPCIe

Hardware user guide for the Telit LM960 cellular module

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Uploaded at
2018-11-07 16:02:55
Last updated
2018-11-07 16:02:55
Version
R1
Related products
Telit LM960 LTE CAT-18, GPS, mPCIe
Question

MiniPCIe based cellular modules supporting both USB2 and USB3 are not detected in the host system? Such as Sierra Wireless MC74** series, and Telit LM940/LM960 series modules.

Solution

From start the PCI-SIG miniPCIe form factor standard only included support for PCIe + USB2 data interface and had designated signal lines for these between host system and the miniPCIe module. Since revision 2.1 of the PCI-SIG miniPCIe standard it is defined that the PCIe data lanes can be shared/used for USB3 also.

Cellular modules mainly rely on USB2 interface but as the cellular throughput speeds have increased, the USB2 can become a bottleneck on LTE Cat 6 modules and higher. To address this, USB3 data interface was introduced on the higher data throughput mobile broadband cellular modules and made available in parallel to USB2 interface. However due to limited amount of pin lanes available in the miniPCIe socket they share location with the PCIe data interface pin lanes.

When the host system and module are powered on, the cellular module will try to probe if USB3 interface is present on the pin lanes and if communication can be established, otherwise the module will revert to using the USB2 data interface instead.

However, in some host systems where PCIe data interface also is implemented on the shared pin lanes, the signals will interfere with the cellular modules probing for USB3 interface making it not fall back to USB2 data interface. This usually result in the cellular module not being detected at all in the host operating system.

The USB3 auto-sensing functionality is enabled by default but can be disabled by using AT commands to write the memory changes to the internal NV memory which is stored between restarts. After the module is restarted it will use only the USB2 pin lanes for data interface. Please also check and validate if the host system BIOS support disabling of the PCIe interface in the miniPCIe socket.

Related AT commands for configuring USB3/USB2 modes:

Telit LM940/LM960 modules:
AT#USBSWITCH=1
AT#REBOOT

For Sierra Wireless MC74 series: (firmware version dependent)
AT!ENTERCND="A710"
AT!USBSPEED=0
AT!RESET

For troubleshooting this issue in hardware, you can try isolating the USB3 data interface pins #23, 25, 31, 33 on the top side of the miniPCIe data cards card socket so no signalling to and from the hosts can occur. This could be done in the board design or with adapter.

Question

How to step by step set up a data connection over QMI interface using qmicli and in-kernel driver qmi_wwan in Linux?

Solution

Several cellular modules based on Qualcomm chipsets implements the Qualcomm Qualcomm MSM (QMI) Interface.
There is a open source Linux in-kernel driver supporting this interface and it is called qmi_wwan. The library libqmi can be used to communicate with the cellular devices over the interface and do necessary configurations to trigger the data connection over the cellular network.

Sierra Wireless MC74**/EM74** series: requires RAW-IP configuration.
Sierra Wireless EM75** series: requires RAW-IP configuration.
Telit LM940: requires RAW-IP configuration.
Telit LN94x series: requires RAW-IP configuration.
Simcom SIM7500/SIM7600/SIM7600*-H series: requires RAW-IP configuration (supported in qmi_wwan driver kernel 4.18+).
Simcom SIM7100 series: 802.3 IP framing supported.
Sierra Wireless MC73**/EM73** series: 802.3 IP framing supported.

First install the libqmi Linux library e.g. by using your system package manager like apt etc. (more details about libqmi here: https://www.freedesktop.org/wiki/Software/libqmi/)

Verify that you have the Linux in-kernel qmi_wwan driver installed for the cellular modules exposed QMI interface endpoint over USB:
lsusb -t
Can look e.g. like this:
...
|__ Port 1: Dev 3, If 2, Class=Vendor Specific Class, Driver=qmi_wwan, 480M
...

If the driver is not correctly loaded, please verify that the module is set to expose the correct USB endpoints configuration toward the host system and that you have followed the provided guides from the cellular module vendors, regarding how to implement the module in Linux.

Libqmi expose a command line interface that can be used to communication with the module over QMI interface.
The qmicli help will output information about all commands available:
qmicli --help-all

The cellular modules QMI control interface are usually named cdc-wdm* e.g.:
qmicli --device=/dev/cdc-wdm0

In order to allow parallel commands to be execute on the module over QMI interface, it is recommended to use the libqmi proxy function. This can be done by including the attribute -p or --device-open-proxy in every qmicli command.

If a SIM pin is required for the SIM card, use command bellow:
qmicli --device=/dev/cdc-wdm0 -p --dms-uim-verify-pin=PIN,1234

The name of the related network interface to QMI control channel can be acquired with the command:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --get-wwan-iface

The most recent Qualcomm based cellular modules only expose QMI interfaces that can support Raw-IP mode. Sierra Wireless EM/MC74 and EM75 series modules, Telit LM940 and LN940 series for example require this.
Check what IP-mode the host system is configured for:
qmicli --device=/dev/cdc-wdm0 --get-expected-data-format
Check what IP-mode the cellular module require:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --wda-get-data-format

to change qmi_wwan driver to use Raw-IP.
Disable the network interfaces exposed by the cellular module:
ip link set dev wwan0 down
Trigger the Raw-IP support:
echo Y > /sys/class/net/wwan0/qmi/raw_ip
Enable the network interfaces again:
ip link set dev wwan0 up

Now the data connection in the cellular module can be activated e.g. with a IPv4 type configuration on the specified APN:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --wds-start-network="ip-type=4,apn=data.tre.se" --client-no-release-cid

Once "Network started" is displayed, you can send a DHCP request on the network interface.
Please note that not all DHCP clients in Linux can support Raw-IP format, udhcpc however support this for IPv4 over Raw-IP.
udhcpc -q -f -n -i wwan0

Disconnect the data bearer and data connection over QMI by command bellow and providing the network handle and CID returned at connection activation:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --wds-stop-network=NETWORK_HANDLE --client-cid=CID

Additional useful commands:

Request module manufacturer:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --dms-get-manufacturer

Get module model:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --dms-get-model

Get firmware version:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --dms-get-revision

Get module IDs (IMEI etc.):
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --dms-get-ids

Get SIM card status:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --uim-get-card-status

Recent cellular modules like Sierra Wireless EM7565 require at least libqmi V1.20. Check version with command:
qmicli --version

If the connection was successfully set up established, you now have data connectivity. A ping to a remote server using the cellular network interface can for example prove this:
ping -I wwan0 8.8.8.8

The ifconfig Linux tool can show the current details for the network interface:
ifconfig wwan0

libqmi is well integrated and supported in ModemManager tool for Linux. ModemManager again is well integrated and supported when using NetworkManager tool in Linux. Please note however that these two tools expect the cellular module interfaces to only be used by them so if you manually want to use the libqmi library or AT commands interfaces, please turn off/disable ModemManager and NetworkManager first.

The libqmi is a generic open source library for Linux systems and QMI protocol from Qualcomm, therefor there are several commands only working on selected devices and not necessarily on supported in the specific device you use, resulting in an error message.

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