GXX-4GUE Series Modem User Manual

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GeoSIG Ltd reserves the right to change the information contained in this document without notice. While the information contained herein is assumed to be accurate, GeoSIG Ltd assumes no responsibility for any errors or omissions.

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GeoSIG Ltd Switzerland

1. Overview

The 4G modem series GXX-4Gx is currently only available for external use with a GMSplus. The GXX-4GUE is installed in an IP65 rated housing with a durable cable for connecting to the GMSplus, which makes it suitable for installation at a distance from the GMSplus.

2. Installation of the SIM Card

Before proceeding, please make sure that:

• SIM card is not locked by a PIN code.
• The modem is NOT powered.

2.1. GXX-4GUE

• Open the housing of the modem by pushing down the four screws on the corners of the housing using a screwdriver and turning the screws approximately 45 degrees anti-clockwise.
• Use a pointed tool, e.g., a screwdriver, to press the small yellow button and open the SIM card slot as shown in Figure 2. To have better access to the SIM card slot, the USB connector (green & green/white wires) and the antenna can be carefully removed if required.
• Add, remove, or change the SIM card and push the slot back.
• If required, reconnect the USB connector and the antenna.
• Close the housing of the modem.
• Connect the cable to the SERIAL connector of the GMSplus, which works as a USB port.

3. Hardware Configuration

3.1. Preparation of the GMSplus

The GXX-4GUE series normally are delivered with all necessary preparations readily made in the GMSplus. However, if this is not the case (e.g., the modem was bought later), the following procedure can be followed.

Make sure that the armdas firmware on the GMSplus is 21.12.27 (gsfw-r148) or higher. Otherwise, download the newest firmware from www.geosig.com -> Support -> Downloads. For information regarding the upgrade, refer to chapter 11 of the GMSplus User Manual.

The GMSplus hardware is normally prepared for the 4G modem. To check this, follow these steps:

• Switch off the GMSplus instrument.
• Disconnect the power supply and open the GMSplus housing cover by unscrewing the four screws in the corners.
• Disconnect the battery and unscrew the black protective cover.
• Check that the jumper JMP26 is set to the upper position (Pin 1-2).
• Check that the jumpers JMP23, JMP24, JMP25 are set to the lower position (Pin 2-3).

Keep the APN, login, and password provided by your mobile phone provider ready.

Configure the GMSplus instrument according to chapter 9.8.3 Connection over PPP (Cellular Modem or analog Phone Line) of the GMSplus User Manual.

4. GXX-4GUE Electrical Connection

The GXX-4GUE modem comes with a preinstalled cable for connecting directly to the GMSplus's "SERIAL" connector, which works as a USB port, as shown in Figure 4. The pin-out for the connector at the end of the cable is also provided for convenience in Figure 5.

5. Mounting

The GXX-4GUE can be mounted on horizontal or vertical surfaces using 4 bolts according to the drawing below.