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DB4/DB4X Digital Multiplexer

DB4 Multiplexer Unit For DynaFlex

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The DB4 and DB4X are the primary multiplexer units of Avara’s DynaFlex rugged access multiplexer platform. These units provide 4 x 2Mbit/s network interface ports that connect to a powerful, integrated, non-blocking cross connect switch fabric with timeslot interchange capabilities. It also supports extensive circuit protection functions and has the capacity to perform digital and analogue summing functions for point to multipoint applications.

Together with the extensive Ethernet switching functionality supported, the DB4 is an ideal solution for mission critical networks where deterministic timing, low jitter and predictable switching times are necessary and efficient use of available bandwidth is mandatory.

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Technical specifications
Application Note

Technical Highlights:

DB4 Interfaces (Single Slot)
• 4 x G.704/2M Balanced (120 Ω) or Un-balanced (75 Ω)
• Q1 MI/DI with Data Hybrid (V.11)
• RS-232 console RJ45
• 2 x 10/100 Ethernet on single RJ45 for management
• 4 x Ethernet WAN directions
• Measurement port or Sync In/Out via SMB

DB4X Interfaces (Double Slot)
• 4 x 10/100 Ethernet ports
• 4 x V.11 ports and hybrid function
• Tag based VLAN
• 802.1p priority
• Rate limiting on Ethernet ports
• Dedicated Sync In / Out port

Key Features
• Extensive Nx64K/8K cross connect and branching capabilities
• Extensive protection features
• Serial Data and Voice Summing
• Pluggable into Dynanet Mechanics
• Interoperable with third party multi-plexer products including Nokia Dynanet DB2/DB2LP/DN2/DM2/DM2+ and FMX
• Manageable via ASPeCT, Q1, Telnet, & SNMP

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