Installation Notice; Security Warnings - Digitalchina Networks DCS-3950 series Manual

The dimensions of the switch designed to be mounted on a standard 19'' rack, please
ensure good ventilation for the rack
Every device in the rack will generate heat during operation, therefore vent and fans
must be provided for an enclosed rack, and devices should not be stacked closely.
When mounting devices in an open rack, care should be taken to prevent the rack
frame from obstructing the switch ventilation openings. Be sure to check the
positioning of the switch after installation to avoid the aforementioned.
Caution!
If a standard 19'' rack is not available, the switch can be placed on a clean level
desktop, leave a clearance of 10mm around the switch for ventilation, and do not place
anything on top of the switch

2.1.2 Installation Notice

Read through the installation instruction carefully before operating on the system.
Make sure the installation materials and tools are prepared. And make sure the
installation site is well prepared.
During the installation, users must use the brackets and screws provided in the
accessory kit. Users should use the proper tools to perform the installation. Users
should always wear antistatic uniform and ESD wrist straps. Users should use
standard cables and connecters.
After the installation, users should clean the site. Before powering on the switch,
users should ensure the switch is well grounded. Users should maintain the switch
regularly to extend the lifespan of the switch.

2.1.3 Security Warnings

Do not attempt to conduct the operations which can damage the switch or which can
cause physical injury.
Do not install, move or disclose the switch and its modules when the switch is in
operation.
Do not open the switch shell.
Do not drop metals into the switch. It can cause short-circuit.
Do not touch the power plug and power socket.
Do not place the tinder near the switch.
Do not configure the switch alone in a dangerous situation.
Use standard power sockets which have overload and leakage protection.
Inspect and maintain the site and the switch regularly.
Have the emergence power switch on the site. In case of emergence, switch off the
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