User's Manual

044-05320 Rev A vii
Preface
Safety
Any personnel involved in installation, operation, or service of units included in a Powerwave Distributed
Antenna System (DAS) must understand and follow the points below.
❑ Powerwave Nexus FT systems are designed to receive and amplify signals from one
or more base stations and retransmit the signals to one or more mobile stations. And,
also to act the other way round, that is to receive signals from one or more mobile
stations, amplify and retransmit the signals to the base stations. Powerwave Nexus FT
systems must be used exclusively for this purpose and nothing else.
❑ Units supplied from the mains must be connected to grounded outlets and in conformity
with the local prescriptions.
❑ Power supply units supplied from the mains contain dangerous voltage that can cause
electric shock. Disconnect the mains prior to any work in such a unit. Local regulations
are to be followed when servicing such units. Only authorized service personnel are
allowed to service units while the mains are connected.
❑ All RF transmitting units, including Nexus FTs, will generate radio signals and thereby
give rise to electromagnetic fields that may be hazardous to the health of any person
who is extensively exposed close to an antenna.
❑ A lithium battery is permanently mounted on the CU and FON PCBAs. Due to the risk
of explosion, this battery must only be removed from the board by a Powerwave
authorized service technician.
❑ NiCd batteries are mounted on the FON PCBA. These batteries contain environmental
poisonous substances. If replaced, the old batteries should be disposed of as stated in
the local prescriptions.
❑ The FON unit contains a Class 1M laser transmitter that emits 2—4 mW invisible laser
radiation at 1550 nm during operation and is intended for a restricted location. Avoid
direct exposure from a disconnected laser transmitter or fiber cord. For example, do not
view directly with optical instruments (magnifiers) and do not view directly with
non-attenuating optical instruments.
❑ The FON Unit has this label attached:
❑ Do not power up the FON unit if a fiber cable is not connected to the fiber output UL
port, or if a fiber cable is connected to the port but disconnected at the other end.
❑ Never look at the end of a fiber cable. The 1310nm and 1550nm laser light is not
visible. Always use an instrument, such as a power meter, to detect signaling.
DRAFT