Scenario 1: Realize the mutual conversion between 8-channel optical signals with any rate between 125Mbit/s and 1.25Gbit/s and 8-channel ODU0 electrical signals, as shown in Figure 1.
Description:When interfacing with the 54TOA single board in non-aggregate ODU0 (Any->ODU0) mode with the 52TOM single board in non-cascade (Any->ODU0[->ODU1]) mode, FE/FDDI/FC100/FICON/DVB-ASI/ESCON/SDI service transmission is not supported.
Scenario 2: Realize the mutual conversion between 8-channel optical signals with any rate between 1.49Gbit/s and 2.67Gbit/s and 8-channel ODU1 electrical signals. As shown in Figure 1.
Figure 1 TOA single board in WDM system Scenario 2
Scenario 3: Realize the interconversion between 8 optical signals with any rate between 125Mbit/s and 2.5Gbit/s and 1-8 ODU1 service electrical signals, as shown in Figure 1.The TOA single board supports the mapping of multiple customer-side services to one ODU1 signal in a time-slot manner, for details, please see Customer-side Service Mapping to ODUk Signals.
Figure 1 Application scenario of TOA single board in WDM system3
Scenario 4, realize the mutual conversion between 8-channel OTU1 optical signals and 16-channel ODU0 electrical signals, as shown in Fig. 1.
Fig. 1 Application of TOA single board in WDM system Scenario IV
Description:Each FC400/FICON4G service occupies ODUflex with the number of time slots of 4 and the bandwidth of 5Gbit/s.
The TOA single board supports OTN interface, ESC and other functions and features.
TOA single board functions and features, as shown in Table 1.
Table 1 TOA single-board functions and features| Functions and Features | Description | ||
|---|---|---|---|
| Basic Functions |
Realizes the interconversion of the following signals:
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| Customer Side Service Types |
FE: Ethernet service at 125 Mbit/s GE: Ethernet service at 1.25 Gbit/s. Supports GE optical or electrical signals. OTU1: OTN service at a rate of 2.67 Gbit/s STM-1/OC-3: SDH/SONET service at a rate of 155.52 Mbit/s STM-4/OC-12: SDH/SONET service at a rate of 622.08 Mbit/s STM-16/OC-48: SDH/SONET service at a rate of 2.5Gbit/s FC100: SAN service at a rate of 1.06 Gbit/s FC200: SAN service at 2.12 Gbit/s FC400: SAN service at 4.25Gbit/s FICON: SAN service at 1.06 Gbit/s FICON Express: SAN service at 2.12Gbit/s FICON4G: SAN service at 4.25Gbit/s SDI: digital TV service at 270 Mbit/s HD-SDI: high-definition digital TV service at 1.49 Gbit/s HD-SDIRBR: High-definition digital TV service at 1.49/1.001Gbit/s 3G-SDI: Digital TV service at 2.97 Gbit/s 3G-SDIRBR: High-definition digital TV service at 2.97/1.001Gbit/s DVB-ASI: Digital TV service at 270 Mbit/s ESCON: SAN service at 200 Mbit/s FDDI: SAN service at 125 Mbit/s Description:
The TOA board supports GE optical signals and GE electrical signals. When accessing GE electrical signals, it is recommended to configure up to 2 electrical modules for the convenience of fiber routing. TOA board supports access to SDI, HD-SDI, HD-SDIRBR, 3G-SDI, 3G-SDIRBR, DVB-ASI telecommunication signals, and when accessing, it is necessary to use digital video photoelectric converter box, and its optical module needs to satisfy the requirements of the single board's optical module index, and the video converter box is a third-party device, which is purchased by itself. Description:
FICON4G has the same processing as FC400. When transmitting FICON4G service, it can be configured as FC400 on the network management. |
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| Crossover Capability |
Supports up to 16 ODU0 or 8 ODU1 signals to realize cross-scheduling of services with the cross board through the backplane bus. Supports up to 5 ODUflex signals to cross-schedule services with the cross board via the backplane bus. |
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| OTN Functions |
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| ESC Function | Support | ||
| PRBS test function |
Customer side support. Description:
The PRBS function is supported on the client side only when accessing STM-1/OC-3, STM-4/OC-12, STM-16/OC-48 and OTU1 services. |
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| LPT Function | The LPT function is supported only when the customer side service type is FE/GE. | ||
| FEC Coding | FEC coding is supported on the customer side only when accessing OTU1, in accordance with ITU-T G.709 recommendations. | ||
| Alarm and Performance Monitoring |
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| ALS Function |
Supported on the client side when accessing non-OTN services. |
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| Test frame function | Support Description: Supported when the customer side access service type is GE (GFP-T). |
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| Delay Measurement | The single board supports delay measurement. You can measure the bidirectional delay of the ODUk layer between two tributary boards, and the delay data is displayed on the network management. Description: When the client side accesses OTU1 services, delay measurement is not supported. |
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| IEEE 1588v2. |
When the GE service is accessed and the encapsulation method is GFP-T (select the service type GE (GFP-T) on the network management), TC mode, TC+OC mode, BC mode, and OC mode are supported. When accessing OTU1 service, BC mode and OC mode are supported. Description:
When accessing GE (GFP-T) service, the "TX8"/"RX8" optical ports do not support IEEE 1588v2 clock signal processing. When accessing OTU1, it only supports frequency synchronization through the send/receive timestamp information of the Sync message of IEEE 1588v2, and does not support frequency synchronization through the physical layer clock. |
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| Physical Layer Clock |
When GE (GFP-T) is accessed on the client side, synchronous Ethernet processing is supported, and synchronous Ethernet pass-through is not supported. When the customer side accesses GE (TTT-GMP), synchronous Ethernet processing is not supported and synchronous Ethernet transmission is supported. In the "ODU1_ODU0 mode (OTU1->ODU1->ODU0)" mode, when the customer side accesses the OTU1 service, synchronous Ethernet processing is supported and synchronous Ethernet pass-through is not supported. |
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| Electric layer ASON | Support | ||
| Protection mode |
Description:
Supports tributary SNCP protection only when the customer side accesses OTN service and SDH/SONET service. When the scheduling granule is ODUflex, tributary SNCP protection is not supported. Tributary SNCP protection for ODU0 is supported only when ODU1_ODU0 mode (OTU1->ODU1->ODU0). |
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| Ethernet service encapsulation mode | Encapsulation of GE services as GE(TTT-GMP) or GE(GFP-T) is supported. | ||
| Ethernet service port operating mode |
GE(TTT-GMP): Self-negotiation 1000M full duplex |
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| Loopback | Channel Loopback | Internal Loopback | Supported Description: ODU0 channel loopback is supported only in ODU1_ODU0 mode. |
| Outside loopback | |||
| Client side | Inner Loopback | Support | |
| Outside Loopback | |||
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Supported Protocols or Standards |
Protocol or standard for pass-through (no performance monitoring) |
IEEE 802.3u IEEE 802.3z ITU-T G.707 ITU-T G.782 ITU-T G.783 GR-253-CORE Synchronous Optical Network (SONET) Transport Systems: Common Generic NCITS FIBRE CHANNEL PHYSICAL INTERFACES (FC-PI) NCITS FIBRE CHANNEL LINK SERVICES (FC-LS) NCITS FIBRE CHANNEL FRAMING AND SIGNALING-2 (FC-FS-2) NCITS FIBRE CHANNEL BACKBONE-3 (FC-BB-3) NCITS FIBRE CHANNEL SWITCH FABRIC-3 (FC-SW-3) NCITS FIBRE CHANNEL - PHYSICAL AND SIGNALING INTERFACE (FC-PH) NCITS FIBRE CHANNEL SINGLE-BYTE COMMAND CODE SETS-2 MAPPING PROTOCOL (FC-SB-2) SMPTE 292M Bit-Serial Digital Interface for High-Definition Television Systems ETSI TR 101 891 Professional Interfaces:Guidelines for the implementation and usage of the DVB Asynchronous Serial Interface (ASI) SMPTE 259M 10-Bit 4:2:2 Component and 4fsc Composite Digital Signals - Serial Digital Interface NCITS SBCON Single-Byte Command Code Sets CONnection architecture (SBCON) ANSI X3.139 Information Systems - Fiber Distributed Data Interface (FDDI) - Token Ring Media Access Control (MAC) ANSI X3.148 Information Systems - Fiber Distributed Data Interface (FDDI) - Token Ring Physical Layer Protocol (PHY) ANSI X3.166 Information Systems - Fiber Distributed Data Interface (FDDI) Physical Layer Medium Dependent (PDM) |
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Protocol or standard for processing (with performance monitoring) |
ITU-T G.805 ITU-T G.806 ITU-T G.709 ITU-T G.872 ITU-T G.7710 ITU-T G.798 ITU-T G.874 ITU-T M.3100 ITU-T G.874.1 ITU-T G.875 ITU-T G.808.1 ITU-T G.841 ITU-T G.8201 ITU-T G.873.1 ITU-T G.694.1 |
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