Specifications
6. Modem installation
6.1. General description of installation
Racom routers are built into a robust metal case and are suitable for applications which place them in
various environments from air-conditioned offices to heavy industry factories. To a certain extent the
method of installation needs to be adapted to this. All information in this chapter describes the standard
method of installation for normal industrial applications, which has been derived from valid regulations
for such equipment and also from the long-term experience of our engineers. In the case of larger-scale
networks and more complicated applications we recommend that users order a project assessment
from Racom, or a partner company, which should consist of careful measurements of the strength and
quality of a signal and an assessment of the conditions for the propagation of radio waves.
Each radio equipment must comply with operating conditions for the given frequency band in the
country in which it is operated and the person running the equipment is responsible for this.
For reliable operation of routers it is important to ensure that all equipment, for which data is transmitted
through the router, is connected correctly. Also ensure the antenna is correctly connected and installed,
a suitable and safe supply of electricity is provided, equipment is mounted correctly, and that all corres-
ponds to the given operating conditions, without a negative influence on the specific properties of our
equipment. A description and wiring of individual connectors and interfaces is described in the connectors
chapter.
POWER
RFTx
POWERON
RFSYNC
+
+
PI
GND
GND
SCC0
SCC1
Rx
Rx
Rx
Tx
Tx
Tx
100
LINK
F.D.
SERVICE
ETH0
GND
RxD
TxD
RTS
CTS
GND
RxD
TxD
RTS
CTS
+
-
ACCU
12V/12 Ah
POWER
SUPPLY
MAST
DRAINHOLE
DOWN
ANTENNA HEIGHT
COAXLOOP ANTENNA
CONECTORWITH
WATER-PROOFINGTAPE
COAXIAL RG58<10m,RG213<20m,H1000>20m
Fuse230V/T4 A
SWITCHGEAR
IP54
SCC,ETH
FUSE
F6.3 A
LIGHTING
ARESTOR
~230V
RADIOMODEM
Rx
Tx
GND
RxD
TxD
RTS
CTS
GND
RxD
TxD
RTS
CTS
DTE
Fig. 6.1: Example of a typical installation of a data network radio point
6.2. Antenna installation
Optimum installation of the antenna is influenced by a number of factors. The topology of the radio
network, the separation of radio points, the terrain profile between them, and conditions for signal
21© RACOM s.r.o. – Narrowband modems – PROFI MR400, MR300, MR160
Modem installation