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Assembling
4.1 Installation and removal of media modules
Remember the orientation of media modules.
On modular devices, there are always two module slots arranged opposite each other.
Remember the correct orientation when installing MM900 media modules.
Example:
• The first MM900 media module is installed in slot 3.
• The second MM900 media module installed in slot 4 must be turned through 180
On modular devices for rack mounting, pairs of module slots are located one above the
other in which modules can be inserted in a specific order:
Example of a rack device:
• The first MM900 media module is installed in slot 1.
• The second MM900 media module installed in slot 7 must be turned through 180
Other modules are then inserted in slots 2 and 8 or 3 and 9 etc.
The permitted operating temperature is decided by the fully equipped device (switch +
media module + SFP transceiver).
With modular devices, it is not only the switch that decides the permitted operating
temperature of the overall device but also the temperature ranges of the MM900 media
modules and the SFP transceivers. You will find details in the technical specifications of the
relevant components.
The following aspects can restrict the maximum permitted operating temperature:
• The orientation of the carrier device.
• The use of SFP transceivers.
• The use of transceivers of the types LH, LH+ or ELH.
NOTICE
Failure of the data traffic due to contamination of optical plug-in connections
Optical sockets and plugs are sensitive to contamination of the end face. Contamination
can lead to the failure of the optical transmission network.
Close unused optical sockets and plugs as well as pluggable transceivers and slots with the
supplied protective caps.
Remove the protective caps only immediately before you use the plug-in connection.
26
CAUTION
degrees.
degrees.
Compact Operating Instructions, 05/2016, A5E02630805-12
SCALANCE MM900
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