Siemens FN2006-U1 Mounting & Installation page 8

Fiber network module FN2006 / FN2007
1
Pin assignments
FN2006/FN2007
A
A1
B1
1
A2
B2
3 3
FN2006/FN2007
A
A1
B1
1
A2
B2
3
Wiring example of optical network, class A with four fiber network modules
8
Siemens Industry, Inc.
Building Technologies Division
Fiber optic cable wiring
The accessible laser radiation is safe. It corresponds to laser class 1 in accordance

with IEC 60825/ANSI Z136.
The fiber optic cable is wired crosswise:

– The optical transmitter (TX)
the optical receiver (RX)
– Circuit 1 must always be connected with circuit 2.
The bending radius of the fiber optic cable must not be less than that specified by

the manufacturer (e.g. 10 x outer diameter).
Class A, style 7 circuit:
Class A optical network
A1
Line 1
B1
Line 2
A2
B2
Power A
Power B
A1
Line 1
B1
Line 2
A2
B2
Power A
Power B
of one device must always be connected with
of the other device.
FN2006/FN2007
A2
Line 2
B2
Line 1
A1
B1
Power A
Power B
FN2006/FN2007
A2
Line 2
B2
Line 1
A1
B1
Power A
Power B
A
A2
B2
1
A1
B1
3
A
A2
B2
1
A1
B1
3
A6V10315048_b_en_US
01/13/2012