Specifications

Safety Information
Safety-4
Use the Switch only with the indicated power supply setting.
 Do not use the Switch at any voltage other than the indicated voltage. Doing so could
result in a fire or electric shock.
Ensure that the capacity for incoming current to the distribution board is greater
than the operating current of the circuit breaker.
 Ensure that the capacity for incoming current to the distribution board is greater than
the operating current of the circuit breaker. If it is not, the circuit breaker might not
operate properly in the event of a failure, which could result in a fire.
Ground the Switch.
 When using an AC (PoE) model, redundant power model (with an AC power supply
module installed), and an EPU, use only a grounded power outlet. Failure to do so
might not only result in electric shock, but it might also introduce unwanted electrical
noise that could cause a Switch failure.
 When using a DC model and a redundant power model (with a DC power supply
module installed), connect a ground cable to ground the Switch. Failure to do so
might not only result in electric shock, but it might also introduce unwanted electrical
noise that could cause a Switch failure.
Mounting and removing the −48 V DC power cable must be done by a trained
technician or maintenance personnel.
 Mounting and removing the −48 V DC power cable must be done by a trained
technician or maintenance personnel. Terminal connections are required for
connection of the −48 V DC power cable to the power facility. For this reason,
incorrect handling of the −48 V DC power cable could result in fire or electric shock.
Make sure the power supply circuit breaker is set to OFF before connecting or
disconnecting a −48 V DC power cable.
 Make sure the power supply circuit breaker is set to OFF before connecting or
disconnecting a −48 V DC power cable. Connecting or disconnecting the cable with
the circuit breaker set to ON could result in a fire or electric shock.
Place an insulation cover over the G and −48 V terminals of a −48 V DC power
cable
 Place an insulation cover to the G and −48 V terminals of a −48 V DC power cable (on
the side grounded to the power supply). Using the terminals without an insulation
cover could result in electric shock.