
Safety Guide
GR4K-GA-0001 5
Rev. 1.20
OFF, electricity is still present in the cables connected to the device, which can
cause a fire or an electric shock.
When using a DC power cable, attach an insulating sheath at the 0v and -48V
cable terminal. Using an unsheathed DC power cable could causes an electric
shock.
After attaching a power cable, attach the cover to the terminal plate when using
DC power supply. Otherwise one of the power supply terminals could short out or
you could receive a shock.
Installing or replacing an optional module, such as a network interface (NIF), the
installation must be done by a trained maintenance person.
When connecting the device to the DC power supply, use the EARTH (GROUND)
terminal to avoid an electric shock or the trouble related to electric noises.
To measure the voltage at the
GS4000-80E2, GS4000-160E2,
GS4000-320E (AC), and
GS4000-320E (DC), the end
terminals are attached to these
devices. To avoid a fire or an
electric shock, do not insert small
pins or paper clips into the
terminal.
To measure the voltage at the
GS4000-80E2, GS4000-160E2,
GS4000-320E (AC) and
GS4000-320E (DC), the end terminals are attached to these devices. Measuring
the voltage should be done only by engineers or qualified maintenance personnel.
Do not allow a heavy object to be placed on a power cable, since it could crush it.
Similarly, don’t pull, bend, or otherwise mutilate the power cable, since this
could cause a fire or an electric shock.
There will be a maximum of 3.5 mA of leakage current with the GR4000-80E1,
GS4000-80E1, GR4000-160E1, and GS4000-160E1 and a maximum of 6 mA
leakage current with the GR4000-320E (AC) and GS4000-320E (AC). When
connecting the device to the AC power supply, use only grounded power outlets.
Failing to use grounded outlets creates a shock hazard. Furthermore, you could
introduce unwanted electrical noise into the device, which could degrade
performance.
Since a substantial amount of leakage current flows in the GR4000-320E (AC),
be careful when handling it and comply with the instructions in the label below:
Use the power cable packed with the device. Similarly, do not use the device’s
power cable for the equipment other than the GR4000 or GS4000. In both cases,
using an improper cable could cause a fire or an electric shock.
If the power cable is ever damaged so that the wires underneath the covering are
visible or cut, stop using it and ask a maintenance person to replace it. Using
damaged cables could easily cause a fire or an electric shock.
Do not use adapters to connect multiple power cables to the same outlet. Doing
this can cause a fire or cause a circuit breaker to trip due to an overloaded
circuit.