Cisco Flexible Solutions Taps Data Sheet
Description
The Scientific Atlanta
®
Surge-Gap
™
Reverse Window Taps
offer all of the benefits of our existing Surge Gap taps and
also allow increased efficiency in system design - via the
introduction of reduced reverse path tap losses and tilted
forward path tap losses.
Reverse Window taps are designed to provide benefits in the
HFC plant at tap locations with high level forward RF signals
and significant up-tilt (typically the tap locations closest to
nodes and amplifiers). The Reverse Window taps are offered
in 3 tap values - 26, 29, and 32 dB.
In the forward path, the tap loss in the Reverse Window tap is
deliberately down-tilted, with greater loss at higher frequencies than at lower frequencies. This enables more
frequent use of high value taps - increasing system design efficiency, and improves the ability to optimize tap port
levels.
In the reverse path, the Reverse Window taps have lower tap losses than traditional high value taps. By using
Reverse Window taps, the total range of reverse path tap losses in the HFC plant can be narrowed. This allows
the range of RF levels transmitted from closed loop customer premise equipment (CPEs) to also be narrowed –
thus improving the reliability of upstream transmissions.
All Surge Gap tap products have IEEE compliant 6kV Surge Protection, providing significantly improved
protection against voltage transients in lightning strike areas and locations with unreliable power networks.
The Surge Gap Reverse Window taps continue to offer the make before break capabilities of previous Scientific
Atlanta tap products, enabling the tap faceplate to be pulled without interrupting service to downstream
customers. The taps pass up to 12 amps of current, enabling operators to access power at locations within the
HFC plant where additional power is needed (e.g. for telephony power). The taps are also compatible with our
plug-in Power Distribution Unit (PDU), allowing customers to quickly and easily upgrade their networks for
telephony deployment with associated tap port powering.
also allow increased efficiency in system design - via the
introduction of reduced reverse path tap losses and tilted
forward path tap losses.
Reverse Window taps are designed to provide benefits in the
HFC plant at tap locations with high level forward RF signals
and significant up-tilt (typically the tap locations closest to
nodes and amplifiers). The Reverse Window taps are offered
in 3 tap values - 26, 29, and 32 dB.
In the forward path, the tap loss in the Reverse Window tap is
deliberately down-tilted, with greater loss at higher frequencies than at lower frequencies. This enables more
frequent use of high value taps - increasing system design efficiency, and improves the ability to optimize tap port
levels.
In the reverse path, the Reverse Window taps have lower tap losses than traditional high value taps. By using
Reverse Window taps, the total range of reverse path tap losses in the HFC plant can be narrowed. This allows
the range of RF levels transmitted from closed loop customer premise equipment (CPEs) to also be narrowed –
thus improving the reliability of upstream transmissions.
All Surge Gap tap products have IEEE compliant 6kV Surge Protection, providing significantly improved
protection against voltage transients in lightning strike areas and locations with unreliable power networks.
The Surge Gap Reverse Window taps continue to offer the make before break capabilities of previous Scientific
Atlanta tap products, enabling the tap faceplate to be pulled without interrupting service to downstream
customers. The taps pass up to 12 amps of current, enabling operators to access power at locations within the
HFC plant where additional power is needed (e.g. for telephony power). The taps are also compatible with our
plug-in Power Distribution Unit (PDU), allowing customers to quickly and easily upgrade their networks for
telephony deployment with associated tap port powering.
Features
• 3 Cable slope values available
• Available in 2-, 4-, and 8-way capability in standard Surge-Gap Tap Housings
• Also available in 2- and 4-way Full Profile (FP) Housings (not pictured)
• AC/RF bypass switch provides interruption-free service to downstream subscribers during faceplate removal
• 12 amp through current rating to support network powered telephony
• Compatible with Power Distribution Unit (PDU) for economical two-step upgrade to power passing
• AC blocking capacitors on each port to minimize RF signal distortions
• Backwards compatible housing supports economical faceplate upgrades
• Increased Surge Tolerance - Rugged design enables the new products to continue to operate after surges
that would typically damage ordinary products and interrupt service
• Improved Return Loss - improved return loss performance to lessen reflected signals for a “cleaner” signal
• AL360T housing with powder coating for superior environmental protection
• Sealed and swaged extended F-ports for maximum resistance to moisture ingress
• Nickel plated brass F-ports to ensure a corrosion-resistant drop interface
• Component covers for additional protection of faceplate circuitry during maintenance
• Versatile housing design permits aerial, pedestal, or MDU mounting schemes
Surge-Gap
™
Reverse Window Taps
2-Way, 4-Way, 8-Way Standard & Full Profile
Taps & Passives