Multi-service access and aggregation node OLT MA4000-PX allows to construct access networks based on GPON technology. The OLT allows an operator to construct scalable, failsafe “last mile” networks, ensuring high safety requirements in either urban or rural areas. MA4000-PX controls customer stations, traffic switching and transport network access.
A core element of the MA4000-PX is a scalable Ethernet L2+ switch (PP4X) that interacts with optical interface access modules PLC8 to connect customer devices via GPON technology.
The modules are installed in a standard 19″ 9U Eurocase. The 9U case has two slots for PP4X switch circuit control modules installation and 16 slots for linear PCL8 modules (GPON). A single system can have one or two PP4X central switch control modules.
Installation of two modules improves the fault-tolerance on account of switch redundancy and improves the bandwidth capacity of the system through the distribution of data streams between modules via stacking.
The modules interact via 10Gbit/s interfaces.

Types of modules

  • PP4X: switching and control module
  • PLC8: 8 x GPON 2,5Gbps interface module
  • The quantity of interface modules: up to 16
  • Bus type and performance: 34х10GBASE-KX (XAUI), 680Gbps
    Management and monitoring
    • Single management interface via CLI (Telnet, SSH, serial), SNMP
    • Processing of configuration data of all modules
    • Support for RADIUS, TACACS+

    Standard compliance

    • IEEE 802.3 10BASE-T Ethernet
    • IEEE 802.3u 100BASE-T Fast Ethernet
    • IEEE 802.3ab 1000BASE-T Gigabit Ethernet
    • IEEE 802.3z Fiber Gigabit Ethernet
    • ANSI/IEEE 802.3 NWay  auto-negotiation
    • IEEE 802.3x Full Duplex and flow control
    • IEEE 802.3ad Link aggregation
    • IEEE 802.1p Protocol for Traffic Prioritization
    • IEEE 802.1Q Virtual LANs
    • IEEE 802.1ad Provider Bridges (QinQ)
    • IEEE 802.1v VLAN Classification by Protocol and Port
    • IEEE 802.3ac VLAN tagging
    • IEEE 802.1d MAC bridges
    • IEEE 802.1w Rapid Reconfiguration of Spanning Tree
    • IEEE 802.1s Multiple Spanning Trees
    • IEEE 802.1x Port Based Network Access Control
    • ITU-T G.988 GPON
    • ITU-T G.984x GPON

    Aggregation switch functions with the following capabilities:

    • MAC address learning /aging
    • MAC address limiting
    • Processing of unknown МАС addresses
    • Broadband traffic limiting
    • Multicast traffic limiting
    • Number of multicast groups – 1024
    • Support for Q-in-Q in compliance  IEEE 802.1ad
    • Static routing
    • Port isolation, port isolation within the same VLAN
    • LAG and LACP, including interfaces of PP4X module
    • Port mirroring, VLAN mirroring
    • QoS: 802.1p, DSCP, WRR
    • IGMP/MLD Fast Leave
    • IGMP/MLD Proxy
    • IGMP/MLD Snooping
    • IGMP/MLD Querier
    • DHCPv4 Snooping
    • IPv4 Source guard
    • DHCPv4/DHCPv6 Relay Agent (Option 82, IP helper)
    • LLDP (802.1ab)
    • PPPoE Intermediate agent
    • Utilization by ONT services

    Management and switching hardware board PP4X

    The module of the central switch, PP4X, is a main platform element performing management and diagnostics of periphery modules, switching and aggregation of traffic.
    The installation of two modules improves fault-tolerance due to switch redundancy and increases the system’s bandwidth capacity due to distribution of data streams between modules via stacking.
    The module interaction is realized via two 10 Gbps interfaces distributing the load and ensuring redundancy.


    • Marvell Mv78x00, ARMv5TE, 1000МHz, 2 cores
    • DDR2 SDRAM 512 МB 800 МHz RAM
    • 2 Gb NAND Flash


    • USB (work with USB 2.0)
    • SATA II (support for SSD)

    Network interfaces

    • External connections:
      • 4 x 10GBase-X(SFP+)/1000Base-X (SFP)
      • 2 x 10/100/1000Base-T/1000Base-X (SFP)
    • Interface modules connection:
      • 16 x 10G XAUI (10GBASE-KX4)
    • Central switch module connection:
      • 2 x 10G XAUI (10GBASE-KX4)
    • Optical transceivers – 1G SFP, 10G SFP+ (Copper Direct Attach connection support)
    • Console port – RS-232


    • Ethernet switch – Marvell Packet Processor
    • Bandwidth – 480 Gbps
    • MAC address table: 32K entries
    • Support for up to 4К VLANs according to 802.1Q
    • Quality of Service
    • 8 priority output queues per port
    • Quantity of ports – 24 ports, up to 10 Gbps per port

    Port modes

    • Duplex/half-duplex mode, 10/100/1000 Mbps for electric ports
    • Duplex mode, 1/10 Gbps for optical ports

    Monitoring and management

    • Interaction with external control and monitoring systems via Telnet, SSH, SNMP
    • Access rights limiting: by password, IP address, MAC address, privilege level
    • Support for RADIUS, TACACS+
    • Collection of alarm data on interface modules and the whole device. Generation of notification and alarm messages for monitoring systems.
    • Device temperature control, fan system management
    • Software update management for all device modules

    GPON interfaces module PLC8

    PLC8 module is intended to provide broadband access to the data network via GPON technology with data rate up to 2.5 Gbps downlink. The module is designed for a last mile connection and allows connecting up to 512 end users (ONT). The support of RSSI provides  measuring of optical line parameters.  Network interfaces

    • Connection with the central switching module:
      • 2 х 10G XAUI (10GBASE-KX4)
    • PON:
      • 8 ports of 2.5/1.25 Gbps GPON (SFP)

      Port modes

      • Duplex/half-duplex 10/100/1000 Mbps for electric ports
      • Duplex mode 1/10 Gbps for optic ports


      • Marvell, ARMv5TE, 800МHz, 1 core
      • DDR2 SDRAM 256 МB 320 МHz RAM
      • 2х32 МB SPI Flash


      • Processor – Marvell Packet Processor
      • Switch bandwidth – 128 Gbps
      • MAC addresses – 16К entries
      • Support for up to 4К VLANs according to 802.1Q
      • Quality of Service


      • Transmission media –  optic cable  SMF –  9/125, G.652
      • Split ratio – up to 1:64
      • Received Signal Strength Indication (RSSI)
      • DDM support (parameters output to CLI):
        • Digital RSSI
        • Module Temperature
        • Supply Voltage
        • Laser Bias Current
        • Tx Optical Power Output

      Class B+

      • Compliance with  ITU-T G.984.2, FSAN Class B+, SFF-8472
      • Maximum operating distance: 20 km
      • Transmitter: 1490nm DFB Laser
        • Data rate: 2488 Mbps
        • Average launch power:  +1,5..+5 dBm
        • Spectral line width: -20 dB 1.0 nm
      • Receiver: 1310nm APD/TIA
        • Data rate: 1244 Mbps
        • Receiver sensitivity: -28 dBm
        • Receiver optical overload: -8 dBm

      Class C++

      • Compliance with  ITU-T G.984.2, FSAN Class C++, SFF-8472
      • Maximum operating distance: 40 km
      • Transmitter: 1490nm DFB Laser
        • Data rate: 2488 Mbps
        • Average launch output: +7..+10 dBm
        • Spectral line width: -20 dB 1.0 nm
      • Receiver: 1310nm APD/TIA Detector/Amplifier
        • Data rate: 1244 Mbps
        • Average launch output: -32 dBm
        • Receiver optical overload: -12 dBm
        • Receiver Burst Mode Dynamic Range: 20 dB
      1 Upon a request