Hirschmann RS20 Programming Manual

Ring/Network coupling
Redundanz L2P
Release 5.0 04/09
5.2 Preparing a Ring/Network coupling
63
Figure 26: Selecting the redundancy mode
With the “Redundant Ring/Network Coupling” setting, either the main
line or the redundant line is active. Both lines are never active simulta-
neously.
With the “Extended Redundancy” setting, the main line and the redun-
dant line are simultaneously active if the connection line between the
devices in the connected network fails (see fig. 27).
During the reconfiguration period, there may be package duplications.
Therefore, only select this setting if your application detects package
duplications.
Figure 27: Extended redundancy
Coupling mode
The coupling mode indicates the type of the connected network.
 In the “Coupling Mode” frame, select (see fig. 28)
– “Ring Coupling” or
– “Network Coupling”

Hirschmann RS20 Specifications

General

Mounting	DIN Rail
Operating Temperature	-40°C to +70°C
Protection Class	IP30
Switching Technology	Store-and-Forward
Product Type	Industrial Ethernet Switch
Port Details	10/100 Mbps Ethernet ports
Switching Capacity	3.2 Gbps
MAC Address Table	8k
Management	Web, SNMP
Redundancy	MRP
Ports	8 or 16