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MT90500AL Datasheet(PDF) 2 Page - Mitel Networks Corporation |
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MT90500AL Datasheet(HTML) 2 Page - Mitel Networks Corporation |
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2 / 159 page  MT90500 2 Applications • B-ISDN (Broadband ISDN) systems requiring flexible N x 64kbps transport • Connecting TDM backplane to TDM backplane over ATM network (GO-MVIP MC4, or other) • Systems requiring ANSI T1.630 Structured Data Transfer services for 1 to 122 TDM channels per VC • Systems requiring ITU-T I.363.1 circuit transport over Structured Data Transfer for 1 to 96 TDM channels per VC • Systems requiring AF-VTOA-0078.000 (ATM Forum CES v2.0) “Logical Nx64 Basic Service” • Systems requiring AF-VTOA-0083.000 Voice and Telephony over ATM (CBR-AAL5). • Mapping between CBR-AAL0, CBR-AAL5, and AAL1 • Mapping between CBR partially-filled cells and full cells • Mapping between CBR single-voice cells and Nx64 cells • ATM uplink for expansion of COs, PBXs, or open switching platforms using an adjunct ATM switch • ATM Public Network access for PBX or CO • ATM Edge Switches and CPE Integrated- Access over ATM • TDM traffic transfer over an asynchronous cell bus • Systems requiring Nx64 over CBR-AAL5. Description The MT90500 Multi-Channel AAL1 SAR is a highly integrated solution which allows systems based on a telecom bus to be interfaced to ATM networks using ATM Adaptation Layer 1 (AAL1), ATM Adaptation Layer 5 (AAL5) and ATM Adaptation Layer 0 (AAL0). The MT90500 can be connected directly to a ST-BUS time division multiplexed (TDM) backplane containing up to 1024 full duplex 64kbps channels. Up to 1024 bi-directional ATM VC connections can be simultaneously processed by the MT90500 AAL1 SAR device. On the synchronous TDM bus side, the MT90500 device interfaces with sixteen bidirectional ST-BUS serial links operating at 2.048, 4.096 or 8.192 Mbps. TDM bus compatibility with MVIP-90, H-MVIP, and SCSA interfaces is also provided. On the ATM interface side, the MT90500 device meets the ATM Forum standard UTOPIA Bus Level 1. This supports connection to a range of standard physical layer (PHY) transceivers. The MT90500 provides a built-in UTOPIA multiplexer which allows external ATM cells to be multiplexed with internally-generated cells in the transmit direction. This feature can be used to connect another MT90500 (to expand the TDM bandwidth of the system to 4096 TDM channels), or to connect an external AAL5 SAR (to multiplex non-CBR ATM cell traffic with the MT90500 CBR stream). Figure B - MT90500 Device Application Block Diagram MT90500 AAL1 SAR TDM Data, Clock and Sync Lines MVIP-90 IDL ST-BUS SCSA Off-the-shelf SAR Device (AAL5) Local Memory Off-the-shelf ATM PHY Device UTOPIA Port External CPU 16-bit CPU port for internal register and external memory pro- gramming H-MVIP Synchronous SRAM Primary UTOPIA Port Secondary |
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