Eschborn | Hartmannsdorf | Zurich
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Management & Concentrator Unit

for ULAF+ access platform




The Management and Concentrator Unit with Traffic Switch (MCU-S) forms the link between the termination units and NMS. An MCU-S can manage up to 64 termination units in 4 subracks. The MCU-S is based on the MCU and has the additional feature of a Layer 2 switch.

Management Interfaces

  • 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

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

  • 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
  • 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 IGMP snooping
  • Access control features
  • Broadcast Storm Protection


Carrier Grade Gigabit Ethernet switch aggegrating up to 16 Fast Ethernet ports perf shelf
Aggregation of up to 32x E1 per subrack into 1 GE uplink
Redundant Gigabit Ethernet Uplink

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