Mitsubishi Electric CR800 Series Instruction Manual page 6

DANGER
Attach the cap to the SSCNET III connector after disconnecting the SSCNET III cable.
If the cap is not attached, dirt or dust may adhere to the connector pins, resulting in
deterioration connector properties, and leading to malfunction.
CAUTION
Make sure there are no mistakes in the wiring. Connecting differently to the way
specified in the manual can result in errors, such as the emergency stop not
being released. In order to prevent errors occurring, please be sure to check
that all functions (such as the teaching box emergency stop, customer
emergency stop, and door switch) are working properly after the wiring setup
is completed.
CAUTION
Use the network equipments (personal computer, USB hub, LAN hub, etc)
confirmed by manufacturer. The thing unsuitable for the FA environment
(related with conformity, temperature or noise) exists in the equipments connected
to USB. When using network equipment, measures against the noise, such as
measures against EMI and the addition of the ferrite core, may be necessary.
Please fully confirm the operation by customer. Guarantee and maintenance
of the equipment on the market (usual office automation equipment) cannot
be performed.
CAUTION
To maintain the safety of the robot system against unauthorized access from
external devices via the network, take appropriate measures. To maintain the
safety against unauthorized access via the Internet, take measures such as
installing a firewall.