ADC InterReach 1900 PCS Specification Sheet page 6

InterReace
800 ESMR, 850 Cellular, 1900 PCS
Multiple Fiber Types
InterReach ICS accommodates any combination of single-mode and multi-mode fibers between elements
host, expansion, and remote units.
Free Space Optics (FSO) Installation
Only digital transport can utilize free space optics for building-to-building links where fiber is either not
available or cannot be deployed in a timely or cost-effective manner. Free space optics distances are
determined by service level availability, but are typically in the range of 500 meters to 1 kilometer.
Wave Division Multiplexing (WDM)
InterReach ICS typically is transported over dedicated strands of fiber (a pair of fiber for transmit and
receive paths.) Because of the digital transport, ICS can utilize WDM technology, essentially combining
two waves to one, reducing the required fiber count by half. Optical budgets will be dependent on
the added losses with WDM (the passive modules and added connectors) and the selection of the
SFP transceivers.
Pay As You Grow
Expansion units can be added as growth or capacity needs change by simply adding additional
transceivers, expansion units or remote units. Expanding the InterReach ICS system does not require
adding splitters at the host location or re-optimization as long as the RF parameters remain the same.
Conversely, non-utilized ports can simply be shut off without affecting system performance.
w w w . a d c . c o m
In-building Coverage Solution
®
RU RU RU
RU RU RU
Expansion Unit
RU
SM
Singlemode Fiber
BTS/Off Air Interface
DRU
DRU
Digital Expansion Unit
DRU
Digital Host Unit
BTS/Off Air Interface
• + 1 - 9 5 2 - 9 3 8 - 8 0 8 0
RU
RU
Expansion Unit
RU RU RU
SM MM MM
Multimode Fiber
Host Unit
Expansion
DRU DRU
DRU DRU
DRU DRU
DRU DRU
• 1 - 8 0 0 - 3 6 6 - 3 8 9 1
RU RU
RU RU
Growth
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