Instruction manual

Safety Information
Safety - 4
Cut the DC power supply cable jackets to the specified length.
z To use the DC power supply cable on the power redundancy model, cut the cable jackets (on the switch
side) to 8 to 10 mm.
Too short a sheath length might result in poor contact or a disconnected cable. On the contrary, too long a
sheath length might expose the core wire and cause an electric shock.
Do not use the switch without the protective caps.
z Keep the protective cap in place except when attaching a cable. Otherwise, a fire or an electric shock might
be caused.
Note that EPU-B outputs higher voltage and the label shown below is therefore attached near the stand-by
power supply connector.
Take care of the power supply cable.
z Do not have the power supply cable laid under heavy objects, stretched, bended or processed. The
damaged cable might cause a fire or an electric shock. Pay attention to the rug over the cable, which might
conceal the cable and lead to the cable bearing a heavy load.
z Make sure to use the accessory power supply cable or the specified one. Otherwise, a fire or an electric
shock might result. In addition, use the accessory cable only for this product. Otherwise, a fire or an electric
shock might result.
z If the power supply cable is damaged, exposing the core wires, or is broken, contact the maintenance staff
for a replacement. Continuous use might cause a fire or an electric shock.
z Check for dust on the power supply plug. Securely insert the full length of the blades to exclude any play.
Dust on the plug or insufficient connection might cause a fire or an electric shock.
Do not use a power strip.
z Do not connect multiple appliances of power plugs to one outlet. Doing so can cause a fire as well as circuit
breaker operation due to excessive power consumption affecting other devices.
Prior to inserting or removing the power supply, disconnect the power supply cable.
z Prior to inserting or removing the power supply, disconnect the power supply cable from the power supply.
When the power supply cable is connected, part of the circuit is energized even though the power switch
is off. Therefore, inserting or removing the power supply with the power supply cable connected can cause
a fire or an electric shock.