Siemens FN2012-A1 Mounting & Installation page 29

Function indicator
Manager Ring open
Claim Manager Ring open
Double manager
Client
Unidirectional Data Link
Fault
Function indicator
Claim Manager
Ring open
Double manager
Unidirectional Data Link
Fault
Building Technologies
Siemens Industry, Inc.
Meaning
There is a break in the
Ethernet ring at one or
more locations
Two Ethernet
switches have been
configured as the
manager
Ethernet switch has
been configured as a
client
In one section of the
MRP ring, the
connection is only
running in one
direction due to
incorrect cabling or a
hardware fault
Table 4: RM LED flashing pattern
MRP: Media redundancy protocol
1
Possible troubleshooting steps
● Adapt configuration. A ring manager has to be configured within each MRP ring.
● Check the MRP ring. There is a break in the ring at one or more of the panels.
● Check whether cable is defective.
● Ring port LEDs which are switched off show open ports
– Defective/unplugged cable.
● Adapt configuration. Only one Ethernet switch is allowed to be configured as the
ring manager.
● Check the cabling of all optical fiber sections
● Replace each Ethernet switch in turn until you identify the defective device.
Table 5: Troubleshooting
RM LED flashing pattern (every 2 s)
0 125 250 375 500 625 750
0 125 250 375 500 625 750
0 125 250 375 500 625 750
0 125 250 375 500 625 750
0 125 250 375 500 625 750
Indicators
875 1000 1125 1250 1375 1500 1625 1750 1875
875 1000 1125 1250 1375 1500 1625 1750 1875
875 1000 1125 1250 1375 1500 1625 1750 1875
875 1000 1125 1250 1375 1500 1625 1750 1875
875 1000 1125 1250 1375 1500 1625 1750 1875
A6V10407862_d_en_--
7
t
[ms]
t
[ms]
t
[ms]
t
[ms]
t
[ms]
29 | 34
2018-09-07