Communication Ports
4.1 Redundant Network Access (RNA) Ports
HSR/PRP Ports
Port
Description
A
B
Port
A
and
B
enable the device to connect to
a Parallel Redundancy Protocol (PRP) network
or a High-Availability Seamless Redundancy
(HSR) ring.
7
The
Coupler
port serves the following
purposes:
• To connect two HSR devices to form a
QuadBox
• To connect a SAN (Singly Attached Node)
to an HSR ring via an HSR device
• To connect a VDAN (Virtual Dual Attached
Node) to a PRP network via a PRP device
• To connect an HSR ring to a PRP network
and vice versa
• To connect an HSR ring to an RSTP
network
1
2
1
Ports A and B
2
Port 7 (Coupler)
Figure 4.2
HSR/PRP Ports
LEDs
Each RNA port features an LED that indicates the link/activity state of the port.
State
Description
Green (Solid)
Link established
Green (Blinking)
Link activity
Off
No link detected
Compatible SFPs
For more information about which SFP transceivers are compatible with the
RUGGEDCOM RSG909R, as well as instructions for ordering and installation/
RUGGEDCOM SFP Transceiver Catalog
support.industry.siemens.com/cs/ca/en/view/109482309]
.
IMPORTANT
Only use SFP transceivers approved by Siemens for RUGGEDCOM products. Siemens
accepts no liability as a result of performance issues related in whole or in part to
third-party components.
IMPORTANT
RNA ports A and B must operate at the same speed. Inconsistent speed in these
ports will generate an alarm. Make sure to use SFPs with compatible speeds on ports
A and B.
28
RUGGEDCOM RSG909R
Installation Manual, 02/2021, C79000-G8976-1388-12