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OLT,XPON-HUAWEI ISU TNH1 System Control Switching And Timing Board
Product Description
The ISU board is available in five types: type A, type B, type C, type D, and type E The differences among the five types are the support of the Ethernet interface and the T1 interface, and the impedance of the E1 interface
provides the version description of the ISU board
Table 1 Version description of the ISU board
Product Details:
Product Description
The ISU board is available in five types: type A, type B, type C, type D, and type E. The differences among the five types are the support of the Ethernet interface and the T1 interface, and the impedance of the E1 interface.
provides the version description of the ISU board.
Table 1 Version description of the ISU board
NOTE:
Network application of the OptiX OSN 500
（图片一）
The OptiX OSN 500 is new-generation optical transmission equipment, which is developed by Huawei for the access layer.
The OptiX OSN 500 is used at the access layer of the transmission network. It can provide STM-1/STM-4 optical interfaces and forms the entire equipment group with the other access layer equipment, thus optimizing the Huawei OptiX product series.
shows the position of the OptiX OSN 500 in the transmission network.
Figure 1 Position of the OptiX OSN 500 in the transmission network
The OptiX OSN 500 supports various types of services and provides abundant functions and features, to ensure the quality and efficiency of the service transmission.
The OptiX OSN 500 can access the following types of services:
SDH service signals
PDH service signals
Ethernet service signals
Cross-Connect Capacity
The OptiX OSN 500 supports the higher-order full cross-connections of 21.25 Gbit/s or lower-order full cross-connections of 5 Gbit/s.
The cross-connect unit of the OptiX OSN 500 is integrated on the ISU board. The cross-connect unit is a mandatory functional unit and provides the following functions
Service grooming function of the ADM equipment
Higher-order full cross-connections of 21.25 Gbit/s or lower-order full cross-connections of 5 Gbit/s
Networking Capability
The OptiX OSN 500 can form multiple network topologies such as the ring network and chain network.
The OptiX OSN 500 supports separate and combined configuration of the following types of NEs: terminal multiplexer (TM) and add/drop multiplexer (ADM). The OptiX OSN 500 can form a chain or ring network by using the STM-1/STM-4 optical interfaces.
When the OptiX OSN 500 functions as the access equipment, it can network with Huawei Metro and OSN equipment series. The OptiX OSN 500 can also network with third-party equipment.
The OptiX OSN 500 supports Ethernet private line (EPL) services, Ethernet virtual private line (EVPL) services, Ethernet private LAN (EPLAN) services, and Ethernet virtual private LAN (EVPLAN) services. In addition, the OptiX OSN 500 supports various Ethernet protection, operating, and maintenance functions.
Release documents of the OptiX OSN 500
The ISU board is available in five types: type A, type B, type C, type D, and type E. The differences among the five types are the support of the Ethernet interface and the T1 interface, and the impedance of the E1 interface.
provides the version description of the ISU board.
Table 1 Version description of the ISU board
| Board Version | Supported Interface | Supported PDH Electrical Interface Impedance | Logical Board | Supported Optical Interface Type |
| TNH1ISUA | · 2xSTM-1/4 optical interfaces · 21×E1/T1 electrical interfaces · 8×FE electrical interfaces |
120 ohms (E1) or 100 ohms (T1) | slot 11-SCC, slot 12-XC, slot 13-STG, slot 14-EOW, slot 7-EFT8, slot 8-SL1D/SL4D, and slot 9-SP3S/SP2D | S-1.1, L-1.1, L-1.2, S-4.1, L-4.1, L-4.2, and LC |
| TNH1ISUB | · 2xSTM-1/4 optical interfaces · 21×E1/T1 electrical interfaces |
120 ohms (E1) or 100 ohms (T1) | slot 11-SCC, slot 12-XC, slot 13-STG, slot 14-EOW, slot 8-SL1D/SL4D, and slot 9-SP3S/SP2D | |
| TNH1ISUC | · 2xSTM-1/4 optical interfaces · 21×E1 electrical interfaces · 8×FE electrical interfaces |
75 ohms | slot 11-SCC, slot 12-XC, slot 13-STG, slot 14-EOW, slot 7-EFT8, slot 8-SL1D/SL4D, and slot 9-SP3S/SP2D | |
| TNH1ISUD | · 2xSTM-1/4 optical interfaces · 21×E1 electrical interfaces |
75 ohms | slot 11-SCC, slot 12-XC, slot 13-STG, slot 14-EOW, slot 8-SL1D/SL4D, and slot 9-SP3S/SP2D | |
| TNH1ISUE | · 2xSTM-1/4 optical interfaces · 21×E1/T1 electrical interfaces · 8×FE electrical interfaces |
120 ohms (E1) or 100 ohms (T1) | slot 11-SCC, slot 12-XC, slot 13-STG, slot 14-EOW, slot 7-EFT8, slot 8-SL1D/SL4D, and slot 9-SP3S/SP2D |
Network application of the OptiX OSN 500
（图片一）
| Board | Description | Supported Interface | Valid Slots | |
| ISU board | TNH1ISUA | Integrates the SCC unit, cross-connect unit, clock unit, tributary unit, line unit, and data transparent transmission unit. | · 2xSTM-1/4 optical interfaces · 21xE1/T1 electrical interfaces · 8xFE electrical interfaces |
slot 2 |
| TNH1ISUB | Integrates the SCC unit, cross-connect unit, clock unit, line unit, and tributary unit. | · 2xSTM-1/4 optical interfaces · 21xE1/T1 electrical interfaces |
slot 2 | |
| TNH1ISUC | Integrates the SCC unit, cross-connect unit, clock unit, tributary unit, line unit, and data transparent transmission unit. | · 2xSTM-1/4 optical interfaces · 21xE1 electrical interfaces · 8xFE electrical interfaces |
slot 2 | |
| TNH1ISUD | Integrates the SCC unit, cross-connect unit, clock unit, line unit, and tributary unit. | · 2xSTM-1/4 optical interfaces · 21xE1 electrical interfaces |
slot 2 | |
| TNH1ISUE | Integrates the SCC unit, cross-connect unit, clock unit, tributary unit, line unit, and data transparent transmission unit. | · 2xSTM-1/4 optical interfaces · 21xE1/T1 electrical interfaces · 8xFE electrical interfaces |
slot 2 | |
| Boards in the extended slots | TNH1SL1D/TNH2SL1D | 2xSTM-1 optical interface board | 2xSTM-1 optical interfaces | slots 3 and 4 |
| TNH1PL3T | 3xE3/T3 electrical interface board | 3xE3/T3 electrical interfaces | slots 3 and 4 | |
| TNH1SP3D/TNH2SP3D | 42xE1/T1 electrical interface board | 42xE1/T1 electrical interfaces | slots 3 and 4 | |
| TNH1EGT1/TNH2EGT1 | 1xGE Ethernet transparent transmission board | 1xGE optical interface | slots 3 and 4 | |
| TNH1EFS8/TNH2EFS8 | 8xFE Ethernet switch processing board | 8xFE electrical interfaces | slots 3 and 4 | |
| TNM1EGS4 | 4xGE Ethernet switch processing board | 4xGE/FE optical/electrical interfaces | slots 3 and 4 | |
The OptiX OSN 500 is used at the access layer of the transmission network. It can provide STM-1/STM-4 optical interfaces and forms the entire equipment group with the other access layer equipment, thus optimizing the Huawei OptiX product series.
shows the position of the OptiX OSN 500 in the transmission network.
Figure 1 Position of the OptiX OSN 500 in the transmission network
The OptiX OSN 500 supports various types of services and provides abundant functions and features, to ensure the quality and efficiency of the service transmission.
The OptiX OSN 500 can access the following types of services:
SDH service signals
PDH service signals
Ethernet service signals
Cross-Connect Capacity
The OptiX OSN 500 supports the higher-order full cross-connections of 21.25 Gbit/s or lower-order full cross-connections of 5 Gbit/s.
The cross-connect unit of the OptiX OSN 500 is integrated on the ISU board. The cross-connect unit is a mandatory functional unit and provides the following functions
Service grooming function of the ADM equipment
Higher-order full cross-connections of 21.25 Gbit/s or lower-order full cross-connections of 5 Gbit/s
Networking Capability
The OptiX OSN 500 can form multiple network topologies such as the ring network and chain network.
The OptiX OSN 500 supports separate and combined configuration of the following types of NEs: terminal multiplexer (TM) and add/drop multiplexer (ADM). The OptiX OSN 500 can form a chain or ring network by using the STM-1/STM-4 optical interfaces.
When the OptiX OSN 500 functions as the access equipment, it can network with Huawei Metro and OSN equipment series. The OptiX OSN 500 can also network with third-party equipment.
Ethernet Features
The OptiX OSN 500 provides layered protection for the Ethernet services, and supports all the protection at the SDH layer and the Ethernet service layer.The OptiX OSN 500 supports Ethernet private line (EPL) services, Ethernet virtual private line (EVPL) services, Ethernet private LAN (EPLAN) services, and Ethernet virtual private LAN (EVPLAN) services. In addition, the OptiX OSN 500 supports various Ethernet protection, operating, and maintenance functions.
Release documents of the OptiX OSN 500
| Document Name | Content Description |
| Release Notes | Describes the software/hardware mappings of the latest version, version compatibility notes, updates in the features, hardware, and alarms, resolved and unresolved issues, important notes, upgrade impacts, and mapping documents. |
| Upgrade Guide | Describes the version mappings to be ensured before the upgrade, precautions for the upgrade, upgrade scenarios, the methods of batch upgrading equipment software and upgrading single equipment, and the method of version rollback in the case of an upgrade failure. |
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