PSI-MOS-RS232/FO 1300 E
103266_en_02
PHOENIX CONTACT
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11
Cabling notes
11.1
Connecting the supply voltage
Figure 10
Individual or redundant supply
Operation as a single device
Supply the supply voltage to the module via terminal blocks
1 (24 V) and 2 (0 V).
Operation in a star coupler topology
If you operate the devices in a star coupler topology, the
supply voltage must only be supplied to the first device in the
station. The remaining devices are supplied via the DIN rail
connector. You can create a redundant supply concept by
connecting a second power supply unit to another device in
the topology.
Supply via system power supply
Alternatively, you can supply the star coupler topology using
the MINI-SYS-PS 100-240AC/24DC/1.5 (Order No.
2866983) or MINI-PS-100-240AC/24DC/1.5/EX (Order. No.
2866653) system power supply. It is connected via two DIN
rail connectors.
Usually the system power supply is mounted as the first de-
vice in a topology. A second power supply unit can be used
to create a redundant supply concept.
11.2
Connecting the data cables
•
Connect the RS-232 connection via the D-SUB 9 pin
strip on the top of the device (see Figure 12).
Figure 11
Wiring the D-SUB pin strip
Figure 12
Connecting the data cables
CAUTION: Electrical voltage
The device is only intended for operation with
SELV according to IEC 60950/EN 60950/
VDE 0805.
2
4 V
0
V
2
4 V
0
V
0
V
2
4 V
NOTE: Device damage
Use shielded twisted pair data cables. Connect
the cable shielding at both ends of the transmis-
sion path.
Notes on star structures:
Always connect the master station to the RS-232
interface of the first PSI-MOS device in the star
coupler topology. The other RS-232 interfaces
cannot be used.
Always connect only one RS-232 slave device to
each FO converter at the end of a star line.
2
3
5
7
4
6
7
2
0
8
6
5
D
-SUB
2
5
9
D
-SUB
9
3
2
Pe
r
iphe
r
ie
PSI-M
O
S-
R
S2
3
2-...
max.
1
5
m
Tx
D
R
x
D
GN
D
D
T
R
D
S
R
R
TS
C
TS
4
2
5
4
6
7
8
3
Tx
D
R
x
D
GN
D
D
T
R
D
S
R
R
TS
C
TS
V
CC
T
D
RD
F
O
SIGNAL
E
RR
A
E
RR
B
D
TE
DC
E
V
CC
T
D
RD
F
O
SIGNAL
E
RR
D
TE
DC
E
V
CC
T
D
RD
F
O
SIGNAL
E
RR
A
E
RR
B
D
TE
DC
E
Maste
r
