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Product page: https://vutlan.com/modems/165-vt740-lte-slot-modem.html

Datasheet page: https://vutlan.atlassian.net/wiki/spaces/DEN/pages/2735931393/VT740+LTE+slot+modem

Usage

Allows to receive and send SMS messages (2G, 3G). Provides Ethernet over LTE (4G). Can be installed in VT335t, VT336t, VT825t, VT855t, and VT960t monitoring systems. Power cycling is an embedded function.

The same PCB of VT740 is used for i and t series (e.g. VT335i and VT335t). But The metal enclosures use a different metal panel for holding the modem. t series have an additional screw to hold the panel. Thus the installation is slightly different. But in all other regards, it is the same.

Package content

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Panel

  1. "Main antenna" - Connector, used when the modem is installed inside of the appliance to connect the LTE main antenna. ( The main antenna is supplied together with the modem).

  2. "SIM card" - SIM card slot with an injector.

  3. "Status" - displays modem status. Blinking = working.

  4. "Auxiliary" - Connector, used when the modem is installed inside of the appliance to connect LTE auxiliary antenna. The additional antenna helps to strengthen the signal level. ( Auxiliary LTE antenna is supplied together with the modem).

Installation

You can install the modem while the system is turned On. You may wait up to 3 minutes until the Telecom operator information is renewed.

Step 1

1.1 Use the wire cutter tool to cut off the metal panel labeled “LTE Modem slot”.

You can dispose of the metal panel after.

Step 2

Plug the VT740 slot modem as shown on the picture into the opening. The board should slide into the guide rails (marked as “1”) and plug into the jack (marked as “2”).

Step 3

3.1 Screw the main LTE antenna into “Main” antenna” jack.

3.2 If you want to strengthen the signal, you can screw in the second auxiliary antenna into “Auxiliary” jack.

Step 4

Plug in the micro SIM card. The SIM card slot has an injector.

Step 5

You are ready to go! Turn on the system.

You can install the modem while the system is turned On. You may wait up to 3 minutes until the Telecom operator information is renewed.

Configuring the modem

Please read the following section for the configuration instructions:

Online documentation page link: Setting up a modem

The direct page link for users with paper documentation:

https://vutlan.atlassian.net/wiki/spaces/DEN/pages/1016347/Setting+up+a+modem

Technical specifications

Specifications

GSM/GPRS/EDGE 900/1800 MHz

Control Via AT Commands

GNSS gpsOne Gen 8B;standalone;assisted,XTRA

Uplink up to 5Mbps, Downlink up to 10Mbps

ROHS, REACH, CE

Modem errors:

Problem

Cause

Solution

Modem is not initializing. Power light status is not working.

  1. The cable has disconnected due to transportation.

  2. The unit is not updated to the latest driver version.

  3. An incorrect converter board is installed inside the unit by mistake.

  1. Power down the device. Open the unit’s case. Check the cable is connected.

  2. Please, update the unit to the latest version.

  3. Check if you have a correct converter board installed inside the unit.

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