Table of Contents

Passives integration

The EPM Integrated DOCSIS solution supports the integration with passive devices. This is equipment deployed in the field that connects the headend (where the CMTS/CCAP devices are located) with the subscribers. Currently, the following passive devices are supported:

  • Fiber nodes
  • Amplifiers
  • Taps

The following Entity Relationship Diagram (ERD) defines the relationship between these passive components:

erDiagram
   Node }|--o{ Amplifier : ""
   Amplifier }|--o{ Tap : ""
   Tap }|--o{ CM : ""
   Node {
      string ID PK
      string Name "Optional"
   }
   Amplifier {
      string ID PK
      string Name "Optional"
      string Node_ID FK
      string Amplifier_ID
   }
   
   Tap {
      string ID PK
      string Name "Optional"
      string Amplifier_ID FK
   }
   CM {
      string MAC PK
      string Name "Optional"
      string Tap_ID FK
   }

From the above diagram, the following can be inferred:

  • There are two types of relationships available in the diagram: one to many and zero to many. For example, a node can be connected to zero or multiple amplifiers, but only one amplifier can be connected to a node.

  • The third column available for each entity indicates if the attribute is a primary key (PK) or a foreign key (FK).

Note

Not all the attributes supported by the EPM Integrated DOCSIS solution are listed in the diagram. The mandatory attributes and one optional attribute Name have been included for clarity.

Below, you can find an example of the information expected per entity (in this case, per passive device):

  • Node

    ID Name
    1001 Node A
    1002 Node B

  • Amplifier

    ID Name Node ID
    2001 Amplifier A 1001
    2002 Amplifier B 1001

  • Tap

    ID Name Amplifier ID
    3001 Tap A 2001
    3002 Tap B 2001

  • CM (Cable Modem)

    ID Name Amplifier ID
    001122334455 CM A 3001
    AABBCCDDEEFF CM B 3001
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