Specifications

Revision: 2008-02-07 v
Important Safety Precautions
To reduce the risk of fire, bodily injury, and damage to the equipment the follow-
ing precautions must be observed:
• Read and follow all warning notices and instructions marked on the product or
included in the manual.
• Installation of this equipment has to be done by qualified personnel only.
• To achieve safety and satisfactory EMC performance, the plug-in boards
have to be inserted into appropriate subracks. Subrack slots that are not used
must covered with a blanking plate.
• The subracks must be connected to earth. This is achieved by installing the
subracks into properly grounded rack or by connecting the protective ground
terminal provided on some subracks to the earthing network.
• If the subracks are installed in racks then these racks must be connected to
the earthing network according to ETS 300 253.
• Where protective ground terminals are available on subracks these terminals
are marked with the symbol
. The following rules must be observed:
- The earthing network must be connected to the protective ground terminal
continuously and securely.
- Where the subracks are fitted with an AC power connector the earthing
network must be connected securely to the protective ground terminal
even if the AC power cord is disconnected from the subracks.
- The protective grounding may only be disconnected from the subracks af-
ter the DSL line has been disconnected from the plug-in.
• This product is to be used with telecommunications circuits. Take the follow-
ing precautions:
- Never install telephone wiring during a lightning storm.
- Never install telephone jacks in wet locations unless the jack is specifi-
cally designed for wet locations.
- Never touch uninsulated telephone wires or terminals unless the tele-
phone line has been disconnected at the network interface.
- Use caution when installing or modifying telephone lines.
- Avoid using a telephone (other than a cordless type) during an electrical
storm. There may be a remote risk of electric shock from lightning.
- Do not use the telephone to report a gas leak in the vicinity of the leak.
• Condensation may occur externally or internally if this product is moved from
a colder room to a warmer room. When moving this product under such con-
ditions, allow ample time for this product to reach room temperature and to
dry before operating.
• This product is intended for use in environments as stated in the technical
specifications. Do not use this product in areas classified as hazardous loca-
tions. Such areas include patient care areas of medical and dental facilities,