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The 4220 Access Multiplexer integrates data from two external routers
and voice from PBX onto a fractional T1/E1 or full T1/E1 network
connection. The 4220 Access Multiplexer therefore maximizes the usage of
your T1/E1 network resource by integrating voice traffic from a
PBX and Frame Relay traffic from one DTE port. The 4220 Access Multiplexer
uses the auxiliary T1/E1 port as a drop-and-insert for connectivity
to a digital PBX.
The unit is SNMP-manageable, offers menu-driven configuration,
includes comprehensive diagnostics, and complies with industry and
regulatory standards. A Troubleshooter feature includes LMI conditioning,
link-based testing, and in-band management. These tools simplify
installation and troubleshooting, thereby reducing network downtime
and remote technician costs.
Main Features:
- Fractional to full T1/E1 network interface
- Frame Relay, Cisco HDLC, PPP, and Transparent protocol
- Two serial DTE ports
- Drop-and-insert port for voice integration from PBX
- Ethernet management /data port
- Non-disruptive downloadable code
- Embedded SNMP agent
- LMI conditioning, Link based testing and delay monitoring, In-band
management (Frame Relay or Cisco HDLC)
- User level security
- Time of day sychronization
Optional Intelligence:
- Network performance monitoring: Frame Relay adapted RMON-1, applications and
protocols monitoring RMON-2, Frame Relay SLA FRF.13, IP SLV, and DiffServ monitoring.
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