Mounting and installation
6874_en_16
PHOENIX CONTACT
2-11
2.7.2
Connecting the supply voltage to the FL SWITCH MM HS/M
for GL-certified operation
24 V DC
The system is operated using a 24 V DC voltage, which is applied at the head station. If
required, the voltage can also be supplied redundantly (see Figure 2-18).
Figure 2-17
Supplying the system using one voltage source
NOTE:
For GL-certified operation, an NEF 1- 3 filter (for Environmental Category EMC2)
or NEF 1- 6 (for EMC1) must be used and the components must be installed in a metal
control cabinet.
If redundant power supply monitoring is active (default setting), an error is indicated if only
one voltage is applied. A bridge between US1 and US2 (dotted line connection) prevents
this error message. It is also possible to deactivate monitoring in web-based management
or via SNMP.
U
S
1
U
S
2
Fail
Re
s
et
MODE
ACT 100
FD
FL
S
WITCH MM H
S
Ord. No. 2
8
3
2
3
2 6
U
S
2
U
S
1 GND
GND
R1
R2
00A0451BDD
MAC
Addre
ss
V.24
NEF
1- 3
24 V DC - +
RSPSupply - 1-888-532-2706 - www.RSPSupply.com
http://www.RSPSupply.com/p-14178-Phoenix-Contact-2832357-FL-IF-2TX-VS-RJ-D-Media-Module-for-Modular-Switch.aspx