Instruction manual

Safety Information
Safety - 7
Prior to turning off the device, shut off all power to the device.
z As for the AC power and AC (PoE) models with backup power supplied from the EPU, turning off the power
switch of the switch does not shut off the power to the switch. Turn off the switches of the switch and the
power supply modules to shut off the power supplies.
z As for the power redundancy model with the redundant power supply, turning off either power switch does
not shut off the power to the switch. Turn off the switches of all power supplies mounted on the switch to
shut off the power supplies.
Pay attention to the laser beam.
z This device uses a laser beam, which is colorless and invisible. Do not directly look into the optical
transmitter/receiver part.
Do not touch the SFP-T(T) during or immediately after operation.
z The temperature of operating an SFP-T(T) can rise up to 65 degrees Celsius after a link is established. Do
not touch it during or immediately after operation. Otherwise, you might get burned.
To remove an SFP-T(T), do either of the procedures below. Otherwise, a burn injury might result.
• When the device is on, block the SFP slot and wait for 5 minutes before removing the SFP.
• Turn off the device and wait for 5 minutes before removing the SFP.
The label shown below is attached to an SFP-T(T).
Do not place the device in a humid or dusty environment.
z Do not place the device in humid or dusty environment. A fire or an electric shock might result.
z When the device is exposed to a large temperature difference (for example, when it is moved from a cold
place to a warm place), dew condensation might occur on the surfaces and inside of the device. If the
device is immediately used as it is, a fire or electric shock might result. After moving the device to a place
with an extreme temperature change, wait a few hours before using it.