Introducing the Optical Switch
Optical Switch 13
Basic Switching Principles
Duplex switches follow the same principles as 1 x N switches, but each
port have two fibers.
The FTBx-9150 (2 2 model) is also a bidirectional switch. The two
positions for this switch are known as inserted state and bypass state.
1 x N Duplex Optical Switch Principle
Common port A
Switch ports
Common port B
A1
B1
A2
B2
A6
B6
A3
A4
A5
B3
B4
B5
2 x 2 Optical Switch Principle
Inserted state
Bypass state
C1
C2
L2
L1
C1
C2
L2
L1
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