Siemens FN2007-U1 - Page 8

Fiber network module FN2006 / FN2007
1
Pin assignments
8
Siemens Industry, Inc. A6V10315048_b_en_US
Building Technologies Division 01/13/2012
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)
of one device must always be connected with
the optical receiver (RX)
of the other device.
– 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:
FN2006/FN2007 FN2006/FN2007
FN2006/FN2007
Line 1
Line 2
A1
B1
A2
B2
A1
B1
A2
B2
A
1
A
1
A2
B2
A1
B1
A
1
3
3
3
Line 2
Line 1
Line 1
Line 2
Power A
Power B
Power A
Power B
Power A
Power B
A1
B1
A2
B2
A1
B1
A2
B2
A2
B2
A1
B1
FN2006/FN2007
A2
B2
A1
B1
1
3
Line 2
Line 1
Power A
Power B
A2
B2
A1
B1
A
Class A optical network
3
Wiring example of optical network, class A with four fiber network modules