ME0D0SRUAI71 (03050DES: Switch and Route Processing Unit A18(SRUA-1T-F, 32G Memory))
| Item | Details |
|---|---|
| Description | Switch and Route Processing Unit A18(SRUA-1T-F, 32G Memory) |
| Part Number | 03050DES |
| Model | ME0D0SRUAI71 |
| Card type | SRU |
| Silkscreen | SRUA-1T-F |
| Port | Connector Type | Description | Available Components |
|---|---|---|---|
| FSP0, FSP1 | RJ45 | Reserved. It functions as an interface for fast chassis switchovers. | 8-core shielded cable |
| GE/10GE | SFP/SFP+ | Reserved cascading interface. | Reserved cascading interface. |
| HP-GE0, HP-GE1 | SFP | High-precision clock interface | Optical module (34060286/S4016067/34060484) and Atom GPS timing SFP module (03034CGQ) |
| MGMT-ETH | RJ45 | It connects to an NMS and can work in half-duplex or full-duplex mode. | Super category 5 shielded twisted pair |
| CON | RJ45 | It connects to the console for on-site system configuration. Baud rate: 9600 bit/s (default value), which is configurable. | 8-core shielded cable |
| AUX | RJ45 | Used to redirect to the serial port of the peer device. The default baud rate is 9600 bit/s. | 8-core shielded cable |
| CLK | RJ45 | Used to input or output 2 Mbit/s clock signals, 2 MHz clock signals. | 120-ohm clock cable. If the peer end is an SMB interface, a 120 ohm-75 ohm converter box is required. |
| TOD | RJ45 | Used to input or output 1pps+ASCII time signals, or two channels of DCLS time signals. | 120-ohm clock cable. If the peer end is an SMB interface, a 120 ohm-75 ohm converter box is required. |
| CLK-INT | RJ45 | Inputs or outputs 2 Mbit/s clock signals, 2 MHz clock signals, 1pps+ASCII time signals, or two channels of DCLS time signals. It is reserved. | 120-ohm clock cable |
| CLK/TEST | SMA | Used for clock tests. | 50-ohm clock cable |
| USB | USB Type A | USB interface, reserved for future use. | - |
| Functions and Features | Description |
|---|---|
| Basic function |
1. Responsible for system control and management operations, including route calculation, device management and maintenance, and device monitoring. As a system synchronization unit, this board provides high-precise and reliable clock and time signals. 2. Responsible for cell transmission between BSUs/MSUs and implements Ethernet communications with the SRU for centralized system control and management of the SRU. In addition, this board supports board temperature and voltage monitoring. |
| Reliability and availability | The main control boards and SFUs are integrated. The main control boards work in 1:1 backup mode, and the SFUs work in 3+1 backup mode. The four SFUs balance services at the same time. If one SFU is faulty or replaced, the other three SFUs automatically take over its services to ensure service continuity, improving system reliability. |
| Restrictions and remarks | Cannot be installed in the same chassis with main control boards of other models. In V800R021C10SPC600 and later versions, this main control board can be installed in the same chassis with that of the same model (part number: 03050DES-001). |
| Breakout supported | No |
| Interface rate auto-sensing supported | No |
