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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 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 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.
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Features
- Fractional to full T1/E1 network interface
- Frame Relay, Cisco HDLC, and Transparent protocol (PPP)
- 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)
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More Information
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