The Special Digital EPAX for PLCC Applications


Matrix Power Line Carrier Communication (PLCC) EPAX integrates with the existing power line infrastructure and uses the same network for communication across various sites. Matrix PLCC EPAX is the advanced technology switch supporting all types of networks present in the modern power grids.

Besides traditional E&M, CO and ISDN connectivity, the switch empowers power grids to avail multilateral benefits of cost effective IP and GSM networks.

The system architecture with optional redundancy and hot-swap capabilities offers extended reliability and maintenance ease, ensuring minimum downtime.

System Highlights

32 Bit RISC Architecture Compact and Sturdy Design
Dedicated DTMF Distributed Processing
High Density Digital Switching Hot-Swap
Multi Network Operation Universal Slots
Rack (Cabinet) with Integrated MDF Redundancy
SMT and SLIC based Design Primary and Secondary Protection
Standard 19” Sub Rack Web-based System Management

PLCC Universal Connectivity

PLCC Universal Connectivity

PLCC EPAX Interfaces

Trunk Interfaces Extension (station) Interfaces Auxiliary Interfaces
E&M Analog Extensions External Music Port (AIP)
GSM/3G Digital Key Phones Public Address System Port (AOP)
ISDN BRI IP Phones Relay Port (DOP)
T1/E1/PRI Magneto Phones  
VoIP Channel (SIP)  

Key Features

  • Alternate Routing
  • Destination Restricted Dialing
  • Field Programmable
  • Flexible Station ID
  • Programming Options
  • Routing Table
  • System Fault Alarms
  • User Restricted Dialing
  • Call Accounting System Interface
  • Call Progress Tones & Rings
  • Conference (Dial-in)
  • Programmable Pulse
  • Paging
  • Voice Message Applications
  • Voice Mail System* (*Optional)

  • Compander Control Signal (CCS)
  • Disable Out-of-Order Trunk
  • Flexible Extension Numbering Plan
  • Priority (Forced Call Disconnection)
  • Remote Programming
  • SMDR Reports (Outgoing, Incoming and Internal)
  • System Fault Log
  • Transit Barring
  • Allowed/Denied List
  • Boss Ring
  • Call Duration Control
  • Caller Line Identification (CLI)
  • Conference (Multi Party)
  • LCR
  • Web-based Programming


PLCC Express Switch

PLCC Express Switch
The modular and software driven architecture of PLCC EPAX provides dependable platform for PLCC Express applications. Moreover, redundancy of critical hardware blocks are provided to meet needs of mission-critical applications.

ETERNITY PLCC Express is the superset of all the switching functions. It has capabilities to work as a PLCC EPAX with transit functions. It also performs the role of a normal Office PBX, saving over the separate switching infrastructure and Office PBX.

Gateway Interface

Gateway Interface
To cater the increasing need of redundant network for communication of utility companies, a need of the alternate technologies like GSM and IP has emerged.

PLCC EPAX provides interface for extending the communication redundancy to GSM and IP networks through expansion cards without changing the existing setup. Also the PLCC EPAX has interface for connecting external VoIP and GSM gateways to leverage benefits of these networks along with E&M network.




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