CAUTION
5
Up to two Switching Hubs can be connected. When connecting two Switching
Hubs, use connection brackets and screws (for fixing the connection brackets)
supplied with 19-inch rack mount brackets (two coupled units)( PN71052,
optional) to securely fix the connection brackets to the connection screw holes
on the front and back panels, and then install the Switching Hubs. If the
Switching Hub is not fixed securely, injuries and/or malfunctions could be
caused due to the Switching Hub falling, etc.
Check whether the optical fiber cable connectors are contaminated with dust, etc.
This might cause the optical signal to not be transmitted normally, and cause
misoperations and malfunctions. If they are contaminated, make sure to clean
them off, then connect them to the optical fiber ports.
This Switching Hub is to be periodically serviced in order to maintain its performance.
Please choose a product administrator, and have them be sure to implement
periodic maintenance. When doing maintenance, check the inspection chart that is
posted on our website which has the requisite items listed on it.
When using this Switching Hub to design systems, use it after applying
appropriate measures such as setting up redundant configurations.
Communications failures might be generated due to causes such as malfunctions or
misoperations while the Switching Hub is being used.
When using this Switching Hub for applications which require extremely high
reliability, be careful to expend all possible means to ensure safety and reliability.
This Switching Hub was not designed nor manufactured with the intention that it
be used for applications (in use with railways, aviation, and medical care, etc.
whereas the influence rate due to communications failures is extremely high in
regard to systems that directly affect systems and human lives) which require
extremely high reliability.
Be aware of glitches which are caused in the usage environments such as
age-related degradation, etc.
This may vary depending upon conditions such as utilisation rates and usage
environments, but performance might decrease due to the age-related
degradation, etc. of components. It is recommended that this Switching Hub be
replaced about five years after it has been installed.
Be careful in regards to environmental restrictions whereby the Switching Hub can be used.
Please isolate the business power lines and communications lines. Isolate distribution
lines and other distribution lines, and low current power lines, optical fiber cables,
metallic water conduits, and gas conduits, etc. Noise may be generated in the
communications lines which might cause communications glitches.
Be careful when performing the following operations since the device will be at high
temperatures immediately after it has been energized or the power has been shut off.
- Relocating the installation area, transporting, and attaching, and removing
attachment brackets, etc.
- Connecting and disconnecting twisted pair cables, fiber optic cables, SFP modules and console cables
- Attaching, and removing power cords
- Operating LED display change buttons
Deviation could lead to injuries or burns, etc. because of high temperatures.