TRB145 First Start

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This Wiki page contains the online version of the Quick Start Guide (QSG) for the TRB145 LTE RS485 Gateway. Here you will find an overview of the various components found on the front and back sides of a TRB145 device, basic hardware installation, first login information, device specifications and general safety information. It is highly recommended that you acquaint yourself with with the Quick Start Guide before using the device. If you own a TRB145 device, you can also find a printed version of the Quick Start Guide in the device's package.

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Front view

No. Description
1 Power LED
2 Power socket
3 RS485 connector

Back view

No. Description
1 SIM card slot
2 Mobile antenna connector
3 Mobile connection type LEDs
4 Mobile signal strength indication LEDs
6 USB connector
7 Reset button



RS485 connector pinout
Pin Name Description
1 D_N Driver negative signal
2 R_N Receiver negative signal
3 GND Device ground
4 D_P Driver positive signal
5 R_P Receiver positive signal
6 Vin Power input 9-30 VDC

Device configuration

1. Power on the device and connect the USB cable to your computer.
2. Allow the gateway to boot up. This might take up to 30 s.
3. Your computer's OS should detect the USB device and install the drivers for the virtual NDIS network adapter. IP address is set automatically via DHCP.
4. Use a Web browser to go to gateway's default address:
5. Use the following credentials to login:
6. Go to the WebUI's Status → Overview page to check the signal strength:

Safety information

TRB145 gateway must be used in compliance with any and all applicable national and international laws and with any special restrictions regulating the utilixation of the communication module in prescribed applications and environments.

Radio specifications
RF technologies GSM, GPRS, EDGE, UMTS/HSPA+, LTE
Max. RF power 32 dBm@GSM, 24 dBm@WCDMA, 23 dBm@LTE
Bundled accessories specifications*
Power AC/DC power adapter 9 V, 1 A, 4 pin plug
GSM/WCDMA/LTE antenna 698~868/1850~2690 MHz, 50 Ω, VSWR ≤ 2, gain** 2 dBi, omnidirectional, SMA male connector

* Order code dependent.

** Higher gain antenna can be connected to compensate for cable attenuation when a cable is used. The user is responsible for the compliance with the legal regulations.

  This sign on the package means that is necessary to read the User's Manual before you start using the device

  This sign on the package means that all used electronic and electric equipment should not be mixed with general household waste