Hirschmann RS20 Programming Manual page 74

Ring/Network coupling
The coupling between two networks is effected by the main line (thick blue
line). If the main line fails, the redundant line (thick blue dotted line) takes
over coupling the two networks.
The coupling is effected by two Switches.
The Switches send their control packets via a control line.
The device to which you connect the main line, and the device to which you
connect the redundant line, are partners as regards the coupling.
Connect the two partners via their ring ports.
Select the Redundancy:Ring/Network Coupling dialog.
Select two-Switch main coupling
with control line
3
1
I O
STAND-BY
Figure 37: Two-Switch coupling with control line
1: Coupling port
2: Partner coupling port
3: Control line
The following settings apply to the Switch displayed in blue in the
selected graphic.
Select the coupling port
With "Coupling port" you specify at which port you are connecting
the redundant line.
If the STANDBY DIP switch is OFF, connect the main line to the coupling
port.
Select the control port
With "Control port" you specify at which port you are connecting the
control line.
74
5.2 Preparing a Ring/Network coupling
(see fig. 37).
2
(see fig.
(see fig.
38), (see table 11).
38), (see table 11).
Redundanz L2P
Release 5.0 04/09