Optical Connectivity
Multiple optical connectivity options for every application - whether voice and data from business parks or residential areas, traffic for switch collapse programs or mobile backhaul from mobile base stations.
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Supporting a wide variety of optical connectivity

Service providers still require traditional digital loop carrier systems to support both copper and fiber-based services. These digital loop carrier systems all need to provide a variety of fiber-based options including ATM, SONET and Ethernet. As some manufacturers discontinue support for such systems, and as subject matter experts retire, this need becomes more difficult to satisfy over time.

Tellabs Broadband products provide multiple optical transport options for every application. Whether the application carries voice and data from business parks or residential areas, traffic for switch collapse programs or mobile backhaul from mobile base stations, Tellabs has the right optical interface, including ATM, SONET, OC-3, OC-3c and OC-12c optical interfaces and Gigabit Ethernet optical interfaces.

Quick Facts


  • Maximizes access networks with Ethernet and optical options while continuing to support revenue-generating TDM and ATM services.


  • Rare combination of modern and legacy connectivity makes the Tellabs 1000 MSAP the best low-cost choice for the migration of ATM and TDM to IP Ethernet.


  • Redundancy is supported at both the card level and per port level.



  • Multicast support with IGMP Snooping and Proxy for IGMPv2 and IGMPv3.


  • With simple in-service upgrades, service providers get the technology, capacity and QoS required to support all of their customer offerings.


  • Point-to-point, star, chain and tree & branch topologies supported.


Variety of fiber-based options


The Tellabs 1000 MSAP product line offers a variety of optical plug-in cards, all of which can be used on the same system at the same time. Capacities and technologies can be applied to fit the network operators’ applications.




The Optical Carrier Level 3 concatenated Transceiver (OC-3c-XCVR) plug-in card supports multiple user-provisionable functions. It serves as a 155 Mbps ATM uplink to an ATM network, a point-to-point transport between Tellabs 1000 MSAP terminals and an ATM service drop or a termination and conversion device for TDM-over-ATM (ToA) traffic. As an uplink to an ATM data network, this card interfaces to any UNI 3.1- and UNI 4.0-compliant ATM switch or router. When provisioned as an uplink, the system supports up to seven OC-3c-XCVR cards per terminal. As an interterminal transport, the OC-3c-XCVR plug-in card provides termination for fiber-optic transport spans between Tellabs 1000 MSAP terminals. The card carries all traffic (ATM, TDM and Ethernet) between the terminals. There is no need for multiple spans to support different technologies.




The Optical Carrier Level 3 Transceiver (OC-3-XCVR) plug-in card optimizes bandwidth efficiency for interterminal transport of Tellabs 1000 MSAP traffic carried over a SONET ring. This card supports STS-1 channelized OC-3 traffic or STS-3c concatenated OC-3 traffic, between Tellabs 1000 MSAP terminals over a SONET ring. The OC-3-XCVR card minimizes excess bandwidth usage on SONET rings while providing GR-253-CORE-compliant SONET 1+1 APS functionality and interoperability with SONET ADMs. The Tellabs 1000 supports point-to-point, 5-wide star, and drop-and-insert topologies over a SONET ring using the OC-3-XCVR card to provide interterminal transport.




The Optical Carrier Level 12 (concatenated) Transceiver (OC-12c-XCVR) plug-in card provides two functions for the Tellabs 1000 MSAP. It serves as a 622.08 Mbps uplink to an ATM network, and provides a point-to-point SONET optical transport between Tellabs 1000 MSAP terminals. As an uplink to an ATM data network, the OC-12c-XCVR card interfaces to any UNI 3.0-, UNI 3.1-, or UNI 4.0- compliant ATM switch or router. As an interterminal transport, this card provides termination for fiber-optic transport spans between the Tellabs 1000 MSAP terminals. The card carries all traffic (ATM,TDM and Ethernet) between the terminals. The OC-12c-XCVR plug-in card is equipped with SC/PC-type optical connectors for terminating fiber-optic cables. The OC-12c-XCVR card installs into any general-purpose slot in the CBA.

10/100 Ethernet


The ES10/100 plug-in card enables Ethernet service to be delivered directly to subscribers from any shelf. Each ES10/100 provides up to 100 Mbps of bidirectional traffic per port. Each card provides two independent ports. The GbE uplink is used to support cross-connects (Ethernet-to-Ethernet connections, or EECs) with this card. If the GbE uplink is in a different shelf from the ES10/100, subscriber traffic can be transported to the GbE uplink via OC-3c, OC-12c or GbE transport links. The card can be placed in any general-purpose slot of any broadband-capable Tellabs 1000 CBA. This card is compatible with CBAs provisioned for generic shelf mode and for enhanced BDLC shelf mode. The ES10/100 supports upstream per-flow rate limiting based on the provisioned Upstream Packet Traffic Descriptor. Each port also supports receive flow control per 802.3x. The ES10/100 supports both fiber-based and copper-based small form-factor pluggable (SFP) modules, which can be mixed or matched on the card.


Gigabit Ethernet


The GbE222 card enables the Tellabs 1000 MSAP system to evolve with networks moving from circuit switched/connection-based to packet/connectionless-based. The Gigabit Ethernet 222 (GbE222) transceiver supports packet-based Ethernet services in a Tellabs 1000 CBA in these modes for Ethernet uplink to the service provider’s network and interterminal transport. The GbE222 interfaces with Ethernet-based core networks. It carries video-on-demand (VOD) and high-speed Internet (HSI). It encapsulates the Tellabs 1000 MSAP upstream TDM and ATM traffic into Ethernet frames when functioning as a transport interface. The GbE222 card accepts multiple SFP module types. The GbE222 uplink supports IGMP snooping in an IPTV application. The GbE uplink can interwork individual AECs from ATM to Ethernet to pass to an upstream Ethernet-based Broadband
Remote Access Server (BRAS), enabling the service provider to migrate seamlessly to Ethernet-based protocols. In this capacity, the GigE uplink is a client to the BRAS. In a network where ATM-based ADSL modems are predominate, a service provider can migrate to Ethernet-based Internet services, without replacing or reconfiguring the modem, using the GigE uplink to interwork the PPPoA from the modem to PPPoE to the router. The GbE222 provides high-bandwidth interterminal transport between LET and RST and between RSTs. All terminal traffic is encapsulated in Ethernet frames for transport between terminals. Additional bandwidth and/or redundancy are supported by the link aggregation (LAG) capability.



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