GE Reason H49 - Figure 4: Reason H49 Connecting up to Four Sans to the PRP Network

GE Reason H49
Technical Manual
H49/EN M/C22
21
connected to both LANs, via the Reason H49 switch that converts a singly attached
node into a doubly attached node. It acts as a redundancy box or RedBox.
Devices with single network cards such as personal computers, printers, etc., are
singly attached nodes that may be connected into the PRP network via a RedBox as
shown in the following figure.
This is the case for SAN2 and SAN3. Because these SANs connect to both LANs, they
can be considered as Virtual Doubly Attached Nodes and described as VDANs.
Reason H49 can be configured as PRP RedBox and connect up to four SANs to the PRP
network as shown in the following figure:
DANP 2
DANP 1
SAN 1 SAN 4
SAN 3
S1604ENa
LAN A Switch LAN B Switch
H49 - RedBox
SAN 2
Figure 4: Reason H49 connecting four SANs to the PRP Network