Specifications

propagation all influence the type of antenna to be used and where it should be located. Sometimes

the appearance of the structure on which the antenna is to be located and the possibility of its damage

in publicly accessible places should also be taken into consideration. Generally it can be said that for

point-to-point type connections directional antennas are used, and for more remote points and points

with a poorer signal multilink directional antennas with greater gain are used. The height of the antenna

above ground level may improve the quality of the signal. The standard height of approx. 5 m can be

increased severalfold, but always in consideration of the length of the antenna lead, because each

coaxial cable used has its own defined attenuation. For longer leads coaxial cables with lower attenuation

are used and generally these have a larger cross-section, worse mechanical properties and are more

expensive. When using external antennas we recommend protecting the radio modem with overvoltage

protection on the coaxial cable.

We recommend to use vertical polarization for all radio modem networks.

Racom radio equipment in typical installations comply with applicable standards for human exposure

to RF electromagnetic fields, namely with standard EN 50385: 2002. The minimal safe distance is en-

sured by the antenna position on a mast. When special installation is required, the conditions of the

standard above have to be met. The distance between the persons and antenna minimal 5 m comply

with applicable standards for human exposure of general public to RF electromagnetic fields, namely

with standard EN 50385: 2002. It is valid for all power levels and all antenna types which firm Racom

provides.

6.3. Power supply

A power supply meeting the specified parameters (see the table of technical parameters) needs to be

used for supplying radio routers. We recommend using an MS2000

power supply or other power

supply of MORSE system

, which has been developed specially for these purposes, and where neces-

sary is capable of switching to a back-up battery, as well as monitoring its state of charge, and also

charging.

6.4. Technology connection

The Data Terminal Equipment, a programmable controller, a PC or any other device communicating

over the radio network, has to be connected to the router by a data cable to the serial or the Ethernet

interface according to the respective standard. These interfaces are described in detail in the chapter

Connectors.

6.5. Mechanical mounting

Radio routers can be mounted either to a mounting plate using screws or by mounting on a DIN rail.

See the table of technical parameters for the dimensions and spacing separation of mounted parts.

Generally for industrial applications

the radio routers are mounted together with the overvoltage pro-

tection, power supply, and back-up battery into a switchboard with IP54 protection.

http://www.racom.eu/eng/products/ms2000.html

http://www.racom.eu/eng/products/supplies.html

https://www.racom.eu/eng/references/references.html

Modem installation