Siemens SINEC L2 User Manual

S5-95U, SINEC L2 System Description
1.6.2 Fiber Optics Transmission Technology
Physical Bus Characteristics
Figure 1-17 shows an example of a SINEC L2FO network configured as a fiber optic star network
with cascading stars. The star centers are active star couplers AS 501.
The technical terms will be explained in the section that follows.
Figure 1-17. SINEC L2 Network with Fiber Optic Cable
a a a
a a a
a a a
a a a
a a
a a
a a
a a
a a
a a
a a
a a
a a a
a a a
a a
a a
a a a
a a a
a a
a a
a a
a a
a a
a a
a a a
a a a
a a
a a
a a a
a a a
a a
a a
a a a
a a a
a a
a a
a a
a a
S5-95U
a a a a a
a
a a a
a
a a a a a
S5-95U
a a a a
a
a a
a
a a a a
S5-95U
a a a a a
a
a a a
a
a a a a a
SINEC L2FO bus terminal
a a a
a a a
a a
a a
a a
a a
a a a
a a a
a a
a a
a a
a a
a a
a a
a a
a a
a a a
a a a
a a a
a a a
a a a
a a a
a a
a a
a a
a a
a a
a a
a a
a a
a a a
a a a
a a
a a
a a
a a
a a
a a
a a a
a a a
a a a
a a a
a a a
a a a
a a
a a
a a a
a a a
a a
a a
a a a
a a a
a a a
a a a
a a a
a a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a a
a a a
Active star coupler AS 501
a a a
a a a
a a a
a a a
a a a
a a a
a a
a a
a a a
a a a
a a
a a
a a a
a a a
a a a
a a a
a a a
a a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
a a
Glass: max.1400 m / 4.592 ft
Plastic: min. 5 m / 16.20 ft
max. 25 m / 81 ft
Duplex fiber optic cable:
glass or plastic fiber
a a a a
a
a a
a
a a a a
S5-95U
a a a a
a
a a
a
a a a a
S5-95U
a a a a
a
a a
a
a a a a
S5-95U
You can also link two S5-95U programmable controllers point to point directly via a fiber optic
cable, i.e., without using an active star coupler AS 501, as shown in Figure 1-18.
Figure 1-18. Point to Point Link via a Fiber Optic Cable
S5-95U
a a a
a
a
a
a
a
a
a
a
a
a a a
S5-95U
a a a
a
a
a
a
a
a
a
a
a
a a a
EWA 4NEB 812 6112-02 1-25

Siemens SINEC L2 Specifications

General

Brand	Siemens
Model	SINEC L2
Category	Controller
Language	English