Installation Guide

Table Of Contents
Description of the Addressable Multimedia Stretch Tap
78-4002497-01 Rev F 3
Description of the Addressable Multimedia Stretch
Tap
The Addressable Multimedia Stretch Tap (AMST) with Tiering Capability is an
enhanced version of the Multimedia Stretch Tap with an embedded computer. A
cable operator can activate or deactivate AMST ports from the Addressable Tap (AT)
Manager or billing system in the central office or headend, alleviating the need to
dispatch a service crew.
Each AMST contains a unique address range stored in memory. Each drop port on
the tap has its own address, so individual drop ports can be controlled from the
headend. The firmware and data protocol is controlled by Cisco's AT Manager
controller, or by a compatible stand-alone controller through the ATX®.
The AMST can be ordered as either a single tier with simple RF On/Off functionality
at each port, or as a dual tier with each port having RF On/Off or tiered RF service.
The tiered service option is provided through the Tiering filter shipped with the
dual tier taps. Cisco carries pre-defined Tiering filters with tiered service, as shown
in Tap Part Numbers (on page 44). Additional tiering filter options can be developed
per customer requirements.
Tap Components
The AMST consists of the following:
9-inch housing
Faceplate with the circuitry
Optional modules
- Directional coupler (DC)
- Directional coupler/equalizer (DC/EQ)
- Gainblock
- Local Oscillator (LO)
- Reverse Conditioning Module
- Tiering Filter (can be installed in units configured as dual tier units)
Features
The AMST tap has the following important features:
Available with 4-, 8-, 12-, or 16-port faceplates.
The AMST can be mounted on a strand or in a pedestal or lock box.