Instruction manual

Safety Information
Safety - 9
Do not expose the device to high temperatures.
z Placing the device in direct sunlight or near heating appliances such as stoves has a bad influence on the
components.
Keep the device away from TV sets or radios.
z TV sets or radios next to the device might adversely affect each other. When the TV or the radio is noisy,
take the following measures:
• Place the device as far away from the TV set or radio as possible.
• Change the direction of the TV or radio antenna.
• Use a different outlet.
Do not place the device in the environment where hydrogen sulfide is produced or in
a salty atmosphere.
z Any places where hydrogen sulfide is produced such as hot spring resorts or where salt content is rich in
the air, such as seaside areas, might shorten the service life of the device.
Prior to connecting or disconnecting the power supply cable, turn off the switches.
z For the AC power, the AC (PoE) models and the EPU, turn off the device before connecting or
disconnecting the power supply cable.
z As for the power redundancy model, turn off the power supply before connecting or disconnecting the
power supply cable or the cable connector.
z As for the stand-by power supply cable, turn off the power supply module.
When the power supply or the fan unit is replaced with the device turned on, keep the
time limit.
z When the power supply or the fan unit is replaced with the main device turned on, do not leave the device
more than three minutes without the power supply and the fan unit. Otherwise, a failure might occur due
to increasing temperatures inside the device.