Siemens FS20 - Page 177

Repair
Fiber
-
optic network module FN2006 / FN2007 troubleshooting steps
31
177 |
188
Building Technologies
009052_s_en_
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Fire Safety
2016
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06
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02
4 Energy supply interrupted
Figure 20: Energy supply interrupted
In addition, the following light up on the affected FN2001 network modules: fault
indicators H2 and H3. The fault relay on the affected module responds.
5 Ground fault on line 1, A1/B1
Figure 21: FN2006 / FN2007 Fault scenario 5, Ground fault B1 VP
The ground fault on line 1 (A1/B1) is mirrored on line 2 (A2/B2); in addition, EF2
flashes. The fault relay on the affected module responds.
PowerA B
EF1
Link1
RX1
Fail1
Fail2
RX2Link2
EF2
FN2006/FN2007
PowerB A
Link1RX1
EF1
RX2
Fail2
Fail1
EF2
Link2
FN2006/FN2007
H3
H2
H1
A1B1 A2B2
H3
H2
H1
B1
A1
B2
A2
A1
B1
A2
B2
A2
B2
A1
B1
FN2001
FN2001
Line1
Line2
Line1
Line2
Node 1
Node 2
VsysA
VsysA
PowerA B
EF1
Link1
RX1
Fail1
Fail2
RX2Link2
EF2
FN2006/FN2007
PowerB A
Link1RX1
EF1
RX2
Fail2
Fail1
EF2
Link2
FN2006/FN2007
H3
H2
H1
A1B1 A2B2
H3
H2
H1
B1
A1
B2
A2
A1
B1
A2
B2
A2
B2
A1
B1
FN2001
FN2001
Line1
Line2
Line1
Line2
Node 1
Node 2
VsysA
VsysA