With more than 3 million subscriber lines have been installed worldwide, the ULC-1000AN systems are widely used in many public and private networks. The OPNET ULC-1000AN MSAN access platform's modular design provides customers with an easy path to upgrade their embedded copper plant to the future IP-based next generation network.
The ULC-1000AN MSAN provides a clear migration path from traditional services like voice to its flexible network uplink options, including support for both TDM and VoIP soft-switches. The ULC-1000AN architecture is scalable, ranging in size from 6 to 2000 lines per system and can be readily deployed into synchronous digital hierachical (SDH) ring or IP-based Metro-Ethernet infrastructures. Broadband data services using digital subscriber line (ADSL/ADSL2/ADSL2+/G.SHDSL) technologies or Ethernet interfaces along with all traditional TDM srevices can be delivered from a single platform.
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Subscriber interface
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Voice interface
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The ULC-1000AN MSAN is equipped with various voice modules to provide FXS, FXO, pay phone and DID telephoney services. The E&M facility interface, ITO (Transmission Only), Hot Lines and magneto phone interfaces are supported as well. Furthermore, ULC-1000AN provides metallic test access support over the twisted copper wires from the central office switch all the way to the end telephone set, and as a result the daily maintenance work is significantly reduced.
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ADSL/ADSL2/ADSL2+ interface
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The ULC-1000AN MSAN ATU-C8 and ATU-C16 multi-ADSL Modules provides 8 or 16 multi-ADSL respectively with integrated ADSL over POTS interfaces. The modules comply with ITU-T G.992.5 (ADSL2+) and G.992.3 (ADSL2) standards, and are also in compliance with ITU-T G.992.1 (Annex A) and G.992.2 (G.lite). The modules can provide bit rate up to 24 Mbps downstream and 1 Mbps upstream over the twisted copper wires.
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G.shdsl interface
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The N64-GS2 module provides two SHDSL links that comply with ITU-T G.991.2 standard.Eash SHDSL link bandwidth of the module supports both downstream and upstream N*64K (N=1..31) bps . In conjunction with OPNET PS-67 G.shdsl modem, G.703 E1, V.35 or Ethernet leased line service can be provided to subscribers at remote sites.
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Ethernet interface
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The ULC-1000AN provides two ways to interact with Ethernet interface.
1. The GE-SW module provides up to eight 10/100/1000 Mbps Ethernet interface, and two of them can be configured as Gigabit Ethernet optical interfaces. Multiple GE-SW modules can be cascaded in the ULC-1000AN platform to provide flexible Ethernet ports.
2. The DLAN module provides dual-ports 10/100 BASE-T Ethernet interfaces. The module is especially designed for economic Ethernet service.
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Leased line interface
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To fulfill the different enterprise leased line service demand, the ULC-1000AN MSAN offers a portfolio of data modules to support data rate of 2.048 Mbps for E1, N*64K(N=1..31) bps for V.35 and 1200~38400 bps for asynchronous V.24 transmission.
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ISDN BRI/PRI interface
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The R-ISDN and PRA-ISDN modules of the ULC-1000AN provide ISDN interface at 2B+D BRI level and 30B+D PRI level, respectively.
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Transmission Interface
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E1 interface
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The ULC-1000AN provides two types of E1 modules to implement E1 transmission interface. The E1X-XCVR has one E1 interface and the E1TX-XCVR module provides up to three E1 interfaces
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G.shdsl interface
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For area not covered by optical fiber or E1 trunk lines, the E1GS-XCVR module can provide the high-bit-rate digital subscriber line connection between CO and Remote sites by using one or two pairs copper wires.
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SDH STM-1/STM-4 interface
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The STM1-XCVR2E and STM4-XCVR2E modules function as a transmission link between the ULC-1000AN MSAN terminals. The STM1-XCVR2E module provides a 155M STM-1 interface and STM4-XCVR2E module provides a 622M STM-4 interface, respectively. Both modules also have a built-in FE or GE interface on the board.
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Gigabit Ethernet interface
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The GE-SW module provides up to eight Ethernet interfaces, and two of them can be configured as Gigabit Ethernet optical ports. The design uses a plug-in type SFP transceiver in order to meet different distance requirement easily.
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ETH-XCVR ( New Product )
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The Ethernet Transceiver Unit (ETH-XCVR) interfaces to a 10/100 Base-T electrical Ethernet port, transmitting and receiving voice and data originating from channel units in the subscriber slots of the ULC-1000AN system, as well as other types of transceiver unit. The throughput of ETH-XCVR is configurable from 3 Mbps to 43 Mbps, depends on TDM timeslot bandwidth required. The TDM bandwidth could be 30, 60, 90 to 660 DS0 timeslots; it’s adjustable and configured in step of 30 timeslots.
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Network Interface
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Gigabit Ethernet interface
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ATMU-GE module
The ULC-1000AN ATMU-GE module represents a high-bandwidth, cost-effective network interface for packet based networks. The ATMU-GE is a single slot module with two gigabit Ethernet ports to support high speed internet services, voice over IP (VoIP) and IP television (IPTV) applications.
In order to facilitate migration to IPTV, the gigabit Ethernet module also contains hardware support for Internet Group Management Protocol (IGMP). With IGMP proxy support, the ULC-1000AN determines which video streams (in terms of multicast IP addresses) to deliver to which subscribers.
To maximize network efficiency, the ATMU-GE module supports link aggregation. Link aggregation not only provides a 2Gbps pipe when needed but also provides increase resiliency if the second port experiences a failure. In addition, the ATMU-GE supports up to 4094 VLANs.
GE-SW module
The ULC-1000AN GE-SW module functions as a Gigabit Ethernet switch. There are up to eight 10/100/1000 Mbps Ethernet interfaces in the module, and two of them can be configured as Gigabit Ethernet optical interfaces.
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Megaco(H.248)/MGCP/SIP VoIP interface
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With the MGU (Media Gateway Unit) module, the ULC-1000AN MSAN acts as the access gateway for connecting conventional POTS telephones with next generation VoIP networks. The MGU module provides a scalable capacity, up to 512 VoIP channels simultaneously. The MGU module complies with Megaco (H.248)、MGCP and SIP standards, and is interoperable with soft switches among different vendors.
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V5.2 interface
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For PSTN services, V5.2 module is the gateway between the exchange system and the subscriber access network. With 3 million lines deployed in the world wide, the ULC-1000AN MSAN V5.2 module has been in service with switches from various vendors for a long time.
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TDM based interface
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The ULC-1000AN MSAN provides FXO/FXS、payphone、E&M、ISDN PRA and ISDN BRA modules to interface with central office class 5 switch.
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E1 interface
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The ULC-1000AN E1X-XCVR and E1TX-XCVR modules provide single E1 and triple E1s uplink interfaces per module, respectively.
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