MCU - Management and Concentration Unit

MCU - Management and Concentration Unit

Product Overview


The Management and Concentrator Unit (MCU) acts as a management interface card capable to control up to 64 plug-in units in up to 4 cascaded subracks. Management information of other MCUs can be aggregated using MCU’s Ethernet switch.
Network operators connect to the MCU using either ULAF+’s, Local Craft Terminal software or Albis’ network management system «AccessIntegrator» to access the MCU’s inventory, alarming and maintenance, configuration, performance and security features.


The MCU-S integrates additional to the MCU functionality a carrier grade Ethernet switch to aggregate Ethernet traffic of up to 16 line cards. The switch features 16 internal Ethernet tributary ports for line card traffic and two Gigabit Ethernet uplinks.


The MCU-CES includes all the features of the MCU-S plus the Circuit Emulation Service (CES) functionality. The MCU-CES is designed to run E1 voice and data services emulation over packet switched networks. Together with the ULAF+ transmission units the MCU-CES module optimizes performance and cost efficiency of metro Ethernet applications.

  1. Highlight
  2. Features
  3. Data Sheets

  • Carrier Grade Gigabit Ethernet switch aggregating up to 16 Fast Ethernet ports per shelf
  • MEF compliant CES (Circuit Emulation Service) capability
  • Aggregation of up to 32x E1 per sub rack into 1 GE uplink
  • Redundant Gigabit Ethernet Uplink


Management Interfaces (all MCU)

  • V.24/RS232 for Local Craft Terminal (LCT)
  • 3x 10/100 BaseT NMS ports on front pannel
  • SNMP V1, V2c and V3 support
  • SNMP V3 security features:
    - encryption
    - authentication
    - simple pre-defined user/group-based security model
  • up to 8 trap destinations

Switch Interfaces (MCU-S and MCU-CES)

  • 2x SFP bays for GbE modules
  • 1x 100/1000baseT electrical
  • 3x 10/100baseT for NMS

Switch Features (MCU-S and MCU-CES)

  • Non blocking 16-port FastEthernet and 2-port 1GbE switch
  • self-learning table for up to 16384 MAC addresses
  • Wire speed switching in store-and-forward mode
  • IEEE 802.3ad Link Aggregation
  • Ethernet frame lengths from 1518 bytes to 9216 bytes
  • Support of STP (802.1d), RSTP (802.1.w) and MSTP (802.1s)
  • VLAN support according to IEEE 802.1Q
  • Support of GARP and GVRP
  • Support of VLAN stacking Q-in-Q (IEEE 802.1ad)
  • QoS features
  • Support of DiffServ
  • Support of IGMP snooping
  • Access control features
  • Broadcast Storm Protection

CES Features (MCU-CES)

  •  Up to 32 TDM tributary ports (E1)
  • Supported CES standards:
    - ITU-T: Y.1413, Y.1453
    - IETF: RFC 4553
    - MFA Forum: A 8.0.0 and MEF18
  • MEF18 compliance (certified)


Data Sheets


Central Office Unit for NMS access and Ethernet traffic aggregation switching

[ File type: PDF | File size: ca. 750]


Central Office Unit for NMS access, Ethernet traffic aggregation switching and Circuit Emulation Service (CES) functionality

[ File type: PDF | File size: ca. 360]

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