48 •
Fieldbus coupler/controller
Fieldbus coupler 750-319
L
ON
W
ORKS
®
3.1.3.2 Device supply
The supply is made via terminal bocks with CAGE CLAMP® connection. The
device supply is intended both for the system and the field units.
FiELDBUS
INTERF
ACE
ELECTRONIC
ELECTRONIC
FiELDBUS
INTERF
ACE
I/O
MODULES
1
2
3
4
5
6
7
8
750-819
24V
10nF
24V
10nF
0V
DC
DC
24V / 0V
24V
0V
0V
Fig. 3-2: Device supply
g
031901d
The integrated internal system supply module generates the necessary voltage
to supply the electronics and the connected I/O modules.
3.1.3.3 Fieldbus connection
For the field bus connection, the LON interface is equipped with a 2 pole
header, series 231 (MCS). The scope of delivery includes the plug connector
231-302.
Bus cable connection is made isolated from the system. The data decoding
method makes it independent of the polarity.
Fig. 3-1: Fieldbus connection, series 231 (MCS)
g012735x
The connection point is mechanically lowered allowing the installation in a 80
mm deep switch box once the plug is connected.
The connecting cable Twisted Pair is recommended for the FTT-10-
Tranceiver (Free-Topology Transceiver) in the LON coupler.
i
More information
You can find detailled information on more cable types in Chapter 4.3.5
„Cable specification“.