Chapter 1: Introduction to the Ripple-2 Node
plant, feeding downstream (DS) RF signal to subscribers and upstream (US) RF signal from subscribers
to the node.
The RF tray amplifies and conditions the RF signals, and supports software-based control for many of its
capabilities:
• Forward-path and Return-path segmentation
• Return-path attenuation
• Mute switches for troubleshooting ingress
• Selectable enabling or disabling of unused RF output ports to conserve power
• Integrated Tamper Switch
Pebble-2 options
For the Remote PHY DOCSIS node application, a single Pebble-2 module is supported in the Ripple-2
node. The Pebble-2 module contains all the digital processing elements of the node. The modules
connect with the CableOS Core and serve as controllers for all other elements of the Ripple-2 node.
Pebble-2 modules are available in R-PHY (RPD) and R-MACPHY (RMD) configurations:
• Pebble-2 RPD, with 2xSFPs, supporting DS/US configurations:
◦ 2x4
◦ 2x2
◦ 1x2
• Pebble-2 RMD, with 2xSFPs, supporting DS/US configurations:
◦ 2x4
◦ 2x2
◦ 1x2
Remote FTTx Switch (PON)
When used as a Remote FTTx Switch the Ripple-2 node can accommodate up to two Jetty-1 switches:
Jetty-1 options
Each Jetty-1 switch can be configured with:
• 5x Fin R-OLT transceivers + 1x Ethernet tranceiver
• 4x Fin R-OLT transceivers + 2x Ethernet transceivers
• 6x Ethernet transceivers
The Remote FTTx Switch configuration of the Ripple-2 node does not include an RF tray and a Tamper
Switch is installed separately in the base of the node.
Remote DOCSIS/FTTx Hybrid node
The DOCSIS/FTTx Hybrid node configuration supports the features of both the Remote PHY DOCSIS
and Remote FTTx Switch applications.
The DOCSIS/FTTx Hybrid node is configured as follows:
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