Peplink Physical Setup

Published On 15 Oct 2020

Source: https://www.vitel.com.tr/peplink-fiziksel-kurulumu/

Setting up the device

In order to meet customer expectations and get the best performance, the physical installation of the device must be completed to the highest standards. It is important to use high quality and original parts on the system. A non-standard part or improperly chosen hardware can degrade the performance of the entire system; for example low quality coaxial cable or low gain antennas. If we need to list the points that need to be paid particular attention;

  • Antenna Cable
  • Antenna Location
  • Router Location
  • Lightning Protection
  • Ground

Antenna Cable

Antenna cables should be kept as short as possible and high quality coaxial cables with appropriate features should be preferred. Working with network cables and running network cables is much easier than coaxial cables. Therefore, the router should be placed as close to the antennas as possible. Also, if a long coaxial cable is used, the gain from the antenna will be lost in the cable run. To continue with an example; The end-to-end loss (at 1800MHz) of a 6dBi gain antenna with a 30 meter LMR400 would be about 6.2dB loss. The cable types that can be used can be:

  • LMR: They are the new generation RF coaxial cables. It has the advantages of greater flexibility, ease of installation and low cost. It is used for antenna connections of missiles, aircraft, ships, satellites and communication lines.
  • LMR 200: It is a flexible and low loss coaxial cable suitable for outdoor use. It has an impedance of 50 Ohms and is quite suitable for short antenna feeder work. Also, PIM is very low.
  • LMR 240: It is also a 50 Ohm impedance, suitable for outdoor use and low loss coaxial cable. It is designed for a variety of applications including GPS, WLAN and mobile antennas.
  • LMR 400: is a flexible coaxial cable with an impedance of 50 Ohm. It is used for jumper assemblies and short distance antenna connection works in wireless communication systems. This is a very convenient option if you need a cable that requires repeated flexing. The LMR 400 is designed to replace RG-8 cables.
  • LMR 600: Again designed for outdoor use. It is more flexible than air dielectric and rigid cables in terms of bending and usage. It also has 50 Ohm impedance as well.
  • LMR 900/1200/1700: These are cables that can be easily positioned, designed for applications requiring flexible and low loss cable, suitable for medium distance antenna connection works.

Antenna Location

The location of the antenna is extremely important for performance. There are many examples of supplied antennas mounted in a box-cabinet and this will not cause a problem in fixed applications. However, in mobile vehicles, for example, when a ship is in port or close to base stations, it will not be a problem. However, with the ship advancing a few km / miles at sea, there will be a high rate of decrease in signal quality. The distance can be increased by placing the antennas as high as possible to provide a 360-degree viewing angle.

Cable and Antenna Installation Checklist

Router Location

Placing the Peplink device close to the antennas provides better signal strength and quality due to short cable runs. However, this may make physical access to the device difficult for SIM card replacement or other purposes. In this case, the SIM Injector can give users flexibility by allowing the SIM cards to be inserted remotely from anywhere in the local network. The HD4 MBX, HD1 Dome, HD2 Dome, HD2 Mini, UBR Rugged and HD2 IP67 models are devices that support this FusionSIM technology.

Two other things to consider when placing the device close to the antennas is the power supply input and its protection from external influences. There is a possibility that there are no electrical devices in the place where the device will be placed, so attention should be paid to the power supply facilities and to the positioning of the device as isolated and protected. Some Peplink products can be powered over PoE, and PoE support can provide a solution for both of these issues. For example; Models such as BR1 IP55, BR1 IP67, HD2 IP67, HD1 Dome, HD2 Dome and HD4 IP67 can be fed over the network without being affected by external factors with their IP protection classes and without the need for a power source in the near area for power input with PoE support.

Lightning Protection

The lightning threat can be very significant in some areas, and is more likely to be, particularly vessels. Catamarans, for example, are much more susceptible to lightning strikes. Using shields between Peplink and antenna cables and properly grounding the device chassis will protect the equipment from risks.

Ground

Correct grounding will help mitigate the lightning effects mentioned in the previous section. Land use from the source of electricity may not be sufficient in marine vehicles. The device should be grounded directly to the boat hull in a steel boat. In fiberglass boats, a metal plate used in the hull may be sufficient for earthing.

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