TDM over IP
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IP MUX-8/16

Features

• Transmit TDM-based services over packet-switched networks (Ethernet, IP or MPLS)

• Channelized E1/T1s aggregate multiple fractional E1/T1s

• Cross connect between E1 or T1 ports

• Channelized T3s for aggregating multiple T1s

• Unframed E3/T3 transport over packet-switched networks

• 10/100BaseT or 100BaseFx Fast Ethernet uplink interfaces

• Uplink redundancy for service protection

• Transparent to all signaling protocols

• Traffic classification according to 802.1p, IP ToS/DSCP or MPLS EXP bits

• Centralized SNMP-based management

• Advanced clock distribution options include internal oscillator, loopback, external and adaptive clock recovery, using the Ethernet network’s timing data

Description

The IPmux-8 and IPmux-16 TDM pseudowire access gateways convert TDM user traffic data streams into IP packets or frames, for transmission over packet-switched networks (PSNs) via Fast Ethernet uplinks. A TDMoIP gateway at the other end converts the packets back to TDM traffic. These gateways take advantage of packet transport’s capacity, flexibility and low-cost, to deliver legacy TDM-based voice and data services without compromising traditional PSTN quality.



The IPmux-8 and IPmux-16 employ standard pseudowire emulation edge-to-edge (PWE3) technology, defined by the IETF, ITU-T and MFA Forum.


Integrated accessIPmux-8 and IPmux-16 enable economical transport of voice, video and data traffic over PSNs. Offering transparent E1/T1 and E3/T3/CT3 connectivity over Layer 2 and Layer 3 packet networks, they support point-to-point and point-to-multipoint applications in carrier and enterprise environments. User port traffic can be rate-limited, tagged and filtered (based on VLAN classification), while double VLAN tagging (VLAN stacking) can be applied to better engineer the network and allow a granular bandwidth offering.

TDM circuit extensionIPmux-8 and IPmux-16 support the following features:

• E1/T1 connectivity for any user device with standard E1/T1 interface

• Alarm detection with error statistics

• SES/UAS statistics, LOS/AIS physical layer alarms and remote/Local Loop test modes



In addition, both devices support standard E1/T1 alarms from end to end.


Modular designIPmux-16 and IPmux-8 are modular, carrier-class TDMoIP gateways. IPmux-16 is also NEBS-compliant (by special ordering).



• E1 and T1 modules

The IPmux-16 pseudowire gateway supports up to two E1 or T1 modules, including four or eight ports each, for a maximum of 16 E1/T1 channels. The IPmux-8 pseudowire gateway supports up to two E1 or T1 modules with four ports each.



• Ethernet modules

IPmux-16 and IPmux-8 incorporate up to two Ethernet modules. Each module provides one or four Fast Ethernet ports with 10/100BaseT, or up to 2 SFP-based ports. Redundancy and load sharing between Ethernet uplinks are thus supported.



• E3 and T3 modules

Two unframed E3 or T3 modules can operate in a single IPmux-16 unit, together with two Ethernet modules. In addition, a channelized T3 module incorporated in central site units with a T3 hand-off interface, to groom the unframed T1 links originating from multiple remote gateways.



• Channelized T3 and STS-1 modules

The above modules transform the IPmux-16 to a grooming device, receiving up to 28 T1 TDMoIP streams and grooming them into channelized T3 at the central site.