ADC 1900 PCS Benutzerhandbuch
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InterReach
®
In-building
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overage
Solution
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Digitized
RF
InterReach ICS distributes wireless coverage
digitally over optical fiber, which makes it the best
choice for signal quality, architectural flexibility,
and overall performance.
digitally over optical fiber, which makes it the best
choice for signal quality, architectural flexibility,
and overall performance.
Fiber is completely immune to reception or
generation of electromagnetic interference,
making it easy to install alongside other wiring
without fear of noise or crosstalk. By using digital
optics, either single-mode or multi-mode fiber
can be used without degrading signal quality.
This allows users to utilize any dark fiber that may
already be in place within the building and flat
polished LC connectors.
generation of electromagnetic interference,
making it easy to install alongside other wiring
without fear of noise or crosstalk. By using digital
optics, either single-mode or multi-mode fiber
can be used without degrading signal quality.
This allows users to utilize any dark fiber that may
already be in place within the building and flat
polished LC connectors.
Digital RF transport over fiber also offers the
lowest possible noise level, regardless of the
length of fiber. Digital transport is unaffected by
long cable runs, splices and signal splits. Digital
RF transport over fiber also enables complete
flexibility of design. Digital RF transport systems
split and add signals digitally, so the architecture
of fiber cable runs can be optimized for each
application, minimizing installation costs and time.
lowest possible noise level, regardless of the
length of fiber. Digital transport is unaffected by
long cable runs, splices and signal splits. Digital
RF transport over fiber also enables complete
flexibility of design. Digital RF transport systems
split and add signals digitally, so the architecture
of fiber cable runs can be optimized for each
application, minimizing installation costs and time.
Coverage areas can be expanded by adding,
or even daisy-chaining, system components.
Multiple areas, floors, or even multiple buildings
can be covered with uniform digital quality signals
delivered to even the most remote antenna.
Additional components can simply be plugged
in. If the RF parameters have not changed, no
additional optimization is required. Furthermore,
digital RF transport provides greater flexibility for
converging indoor and macro networks.
or even daisy-chaining, system components.
Multiple areas, floors, or even multiple buildings
can be covered with uniform digital quality signals
delivered to even the most remote antenna.
Additional components can simply be plugged
in. If the RF parameters have not changed, no
additional optimization is required. Furthermore,
digital RF transport provides greater flexibility for
converging indoor and macro networks.
Description
InterReach ICS, offered for 800 ESMR, 850
Cellular, and 1900 PCS applications, transports 18-
25MHz of contiguous bandwidth.
Cellular, and 1900 PCS applications, transports 18-
25MHz of contiguous bandwidth.
The InterReach ICS system components include: a
Digital Host Unit (DHU), optional Digital Expansion
Units (DEU), and Digital Remote Units (DRU).
A DHU can feed either DRUs or DEUs. Digital
Expansion Units can be daisy chained without
affecting system performance*.
Digital Host Unit (DHU), optional Digital Expansion
Units (DEU), and Digital Remote Units (DRU).
A DHU can feed either DRUs or DEUs. Digital
Expansion Units can be daisy chained without
affecting system performance*.
Each DHU and DEU is configurable with up to
six single-mode or multi-mode optical transceivers.
Because the optical ports are independent of
one another, single-mode and multi-mode fiber
may be mixed and matched as needed between
elements. For example, a host unit may feed five
remotes with multi-mode fiber, and feed the sixth
remote via single-mode fiber due to distance or
to utilize available fiber in a facility. As
requirements change and future growth is
needed, additional transceivers and DRUs can be
ordered and easily installed onsite. This modular
approach provides optimum design flexibility,
reduces the initial cost of an indoor wireless
solution, and delays further investment until it is
justified by growth. Likewise, any unused ports
may simply be turned off without affecting any
part of the system performance.
six single-mode or multi-mode optical transceivers.
Because the optical ports are independent of
one another, single-mode and multi-mode fiber
may be mixed and matched as needed between
elements. For example, a host unit may feed five
remotes with multi-mode fiber, and feed the sixth
remote via single-mode fiber due to distance or
to utilize available fiber in a facility. As
requirements change and future growth is
needed, additional transceivers and DRUs can be
ordered and easily installed onsite. This modular
approach provides optimum design flexibility,
reduces the initial cost of an indoor wireless
solution, and delays further investment until it is
justified by growth. Likewise, any unused ports
may simply be turned off without affecting any
part of the system performance.
The DHU and DEU are AC powered. The DRUs
are CAT3/5 powered. For distances greater than
500 meters, ADC offers a local power supply for
remote power.
are CAT3/5 powered. For distances greater than
500 meters, ADC offers a local power supply for
remote power.
*The number of DEUs that can be daisy chained
is limited only by the Noise Figure, which can be
calculated using the formula 8 dB + (10 log N).
is limited only by the Noise Figure, which can be
calculated using the formula 8 dB + (10 log N).
InterReach
®
In-building Coverage Solution
800 ESMR, 850 Cellular, 1900 PCS