Telit Wireless Solutions LM940 Manuale utente

1. Introduction

This document provides how to use Telit Interface Board and LM940 module for

certification testing.

2. TLB+SDK use guide

Telit LM940

UMTS/HSPA/LTE Module (Data only)

POWER SUPPLY

You can use the both 110V and 220V power for adapter.

SIM Card

You can use the SIM1 Connector on the top interface board.

POWER ON

To power ON the Telit module, plug adapter in adapter port located on the side of

interface board.

POWER OFF

To power OFF the Telit module, Unplug the adapter.

RF cable to SMT connector loss

699 ~ 960 MHz: 0.1 dB

1710 ~ 2690 MHz: 0.25 dB

2300 ~ 2690 MHz: 0.4 dB

MODEM RESET

To reset the Telit module, Press the RESET button down for 2 seconds.

RF ANTENNA

For RF antenna, You can use Main antenna port and Auxiliary antenna port.

GNSS ANTENNA

For GNSS antenna, you can use GNSS antenna port.

AT COMMANDS / DATA Port

Use the micro USB 3.0 (install provided USB driver first)

- For AT commands – Telit Auxiliary Port

- For data throughput – Telit HS-USB WWAN Adapter

3. TLB+IFBD use guide

You can refer the following picture for cable connection.

POWER SUPPLY

You can connect Power Supply Cable with 3.3 V power supplier (from 3.1 to 3.6V).

SIM Card

You can use the SIM1 Socket on the top interface board.

POWER ON

To power ON the Telit module, connect power supply cable with power supplier.

POWER OFF

To power OFF the Telit module, Unplug power supply cable.

Auxiliary Antenna port

(LTE & WCDMA Diversity +

GNSS for passive antenna)

Main Antenna port

(LTE & WCDMA

)

RF cable loss

•699 ~ 960 MHz : 0.4 dB

•1710 ~ 2690 MHz : 0.6 dB

•2300 ~ 2690 MHz : 0.8 dB

MODEM RESET

To reset the Telit module, Press the RESET button down for 2 seconds.

RF ANTENNA

For RF antenna, you can use Main antenna port and Auxiliary antenna port.

GNSS ANTENNA

For GNSS antenna, you can use GNSS antenna port.

AT COMMANDS / DATA Port

Use the micro USB 3.0 (install provided USB driver first)

- For AT commands – Telit Auxiliary Port

- For data throughput – Telit HS-USB WWAN Adapter

4. Module detachment from TLB board

You can separate module from TLB board referring the following STEP1 and STEP2.

PRESS

LIKE THIS

Before detaching

STEP

“1”

*Note

After step 1,

you are able to detach a module

from TLB like STEP”2” picture.

STEP

“2”

After STEP “1”

*Note

When detached, the thermal pad is

attached to the module because it is

sticky.

So, you should move thermal pad and

attach back it on TLB board.

MOVE

Please let me know if you have any questions or need more details.

Thanks.

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