Siemens FS720 Mounting & Installation page 149
Fire detection system
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Also See for FS720:
- Configuration (412 pages) ,
- Mounting & installation (222 pages) ,
- Commissioning, maintenance, troubleshooting (178 pages)
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7.14.4.2 Connector strip for supply
Building Technologies
Fire Safety
1
Ethernet connection to PMI & mainboard
2
Optical Ethernet (loop network)
P1...P4
Electrical Ethernet ports
P5, P6
Optical Ethernet ports
RX
Optical receiver channel
TX
Optical transmission channel
Wiring
WARNING
Heavily concentrated light
Eye damage
●
Do not look into the red light of the transmitter (TX).
●
The fiber optic cable is wired cross-wise:
The optical transmitter (TX) of one port must always be connected to the other
switch with the optical receiver (RX) of the other port.
●
The bending radius of the fiber optic cable must not be less than 20 mm.
If cabling is being carried out using multiple PMI & mainboards and the FN2008, a
loop can be created accidentally. Please observe the following information.
NOTICE
Loop with Ethernet cable
Impairment of system function
●
Pay attention to the Ethernet cable connection if you are connecting more
than one PMI & mainboard.
●
Never connect a port P1...P4 to a port P1...P4.
Pin
Designation
1
L1+
2
M1
3
M2
4
L2+
The L1+/M1 and L2+/M2 connections are designed for redundant supply and are
not plated-through. Use of the redundant L2+/M2 supply inputs is optional and not
necessary for EN-54 compatibility.
Installing, exchanging and connecting modules
Ethernet switch FN2008 and safety module FN2009
Description
Supply input 1 (+DC 24 V)
Supply input 1 (DC 0 V)
Redundant supply input 2 (DC 0 V), optional
Redundant supply input 2 (+DC 24 V), optional
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A6V10210390_m_en_--
2018-08-29
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