7
Fig. 8: Redundant coupling of rings
OTP
Ring 1
Ring 2
Ring 3
OTP
RS2
RS2
RS2
RS2
RS2
RS2
RS2
RS2
RS2
RS2
RS2
RS2
RS2
RS2
OTP
OTP
OTP
OTP
OTP
OTP
Master
2)
Slave
2)
control line
1)
control line
1)
RS1
RS1
1)
: crossover twisted pair cable
Master
2)
Slave
2)
2)
: For redundant coupling of rings you use port 1 of the
RS2/RS1 for the main line and for the redundant line .
Ring 4
RS2
RS2
RS2
Master
2)
Slave
2)
RS1
ring closed by RS2 with
switch RM on position "ON"
RS2
ring closed by RS2 with
switch RM on position "ON"
RS2
ring closed by RS2 with
switch RM on position "ON"
RS2
control line
1)
RS1
RS1
2)
2)
main line
redundant line
Redundant coupling
of ring 1 and ring 2
main line
redundant line
Redundant coupling
of ring 1 and ring 3
main line
redundant line
Redundant coupling
of ring 1 and ring 4
RS2: RS2-TX/TX, RS2-FX/FX, RS2-FX/FX ST, RS2-FX-SM/FX-SM,
RS2-FX-SM/FX-LH, RS2-FX-LH/FX-LH
