Specifications

DRAINHOLE
DOWN
CONECTORWITH
WATER-PROOFINGTAPE
ANTENNA HEIGHT
COAXLOOP
ANTENNA
VER.4
LIGHTING
ARESTOR
RADIOMODEM
PWR
TX
RX
ETH
232
STATUS
R
E
POE–IEEE802.3af(longline)
MAST
TECHNOLOGY
Fig. 6.4: Supplying power over the ethernet interface directly from the technology
The layout of installation showed at ver. 4, i.e. when the radio modem is placed up on the mast (or
close to it), provides the valuable advantage of having a short antenna feeder (see section Antenna
installation). Remember that the ethernet cable has to meet the PoE standard requirements
(IEEE802.3af).
Power adaptors for RE400
Fig. 6.5: Passive PoE injector
INPUT
10,8–30VDC
+
REPWR
RS232
RE400SIDE
RS232
RS232POWER
ADAPTOR
REPWR
Fig. 6.6: REPWR adaptor
31© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400
Radio modem installation