Siemens X-400 - Manual (Page 3)

Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches
C79000-G8976-C186-03
3
Trademarks
SIMATIC®, SIMATIC NET®, SCALANCE® and SIMATIC NET Networking for Indus-
try® are registered trademarks of Siemens AG.
Third parties using for their own purposes any other names in this document which re-
fer to trademarks might infringe upon the rights of the trademark owners.
Safety Instructions Regarding your Product
Before you use the product described here, read the safety instructions below thor-
oughly.
Notice
When using a SCALANCE X-400 in the ring (HSR, High Speed Redundancy), check
the RM DIL switch before closing the ring cable. If the SCALANCE X-400 adopts the
function of a redundancy manager, the switch must be set to ON. If the SCALANCE
X-400 is not being used as a redundancy manager, the switch must be set to OFF.
Notice
When using a SCALANCE X-400 in redundancy manager mode (RM = ON), check
whether the DIL switches R1 and R2 select the required ring ports before closing the
ring. If ports other than those set are connected to the ring, they cause a ring short-
circuit and overload the network.
Notice
When supplied, the DIL switches R1 and R2 are set to OFF. This means that the gi-
gabit ports on slot 5 are defined as ring ports and ring redundancy is activated. In this
case, you cannot activate rapid spanning tree / spanning tree.
Notice
If a device is replaced, remember the following points relating to a SCALANCE X-400
switch:
● Make the same settings on the DIL switches as they were on the old device.
● Make sure that you use a media module and extender configuration that is iden-
tical to that of the old device.
● Use the C-PLUG of the old device in the new one so that your device configura-
tion is adopted.