Product Introduction
The H801SCUB board is a Super Control Unit Board. It is the core of the system control and service switching and aggregation. It can also function as the management and control core of the network management system (NMS). The H801SCUB board communicates with service boards about the key management and control information through the master/slave serial port and inband GE channel. In this way, the H801SCUB configures, manages, and controls the device. The H801SCUB also implements the simple route protocol function.
Board | Dimensions(WxDxH) | Power Consumption | MTU |
H801SCUB | 25.40mm x 237.00mm x 395.40mm | Static:18.8W Maximum: 22W | 2052 bytes |
Overview
The H801SCUB board supports the following functions:
• System control and management unit
• Local and remote maintenance
• Active/standby switchover
• GE channel to the service board
• Environmental monitoring parameters
• Four SFP GE ports for upstream transmission or cascading
External connections of the H801SCUB board:
Working principle of the H801SCUB board :
The basic working principle of the H801SCUB board is as follows:
• The control module manages the H801SCUB board and service boards, and communicates with the fan tray through the extended serial port.
• The power module supplies power to other functional modules of the board.
• The clock module provides clock signals for other functional modules of the board.
• The switching module provides the GE port to switch and aggregate services at Layer 2 or Layer 3.
– Providing 16 GE ports to implement GE switching on each service board
– Providing four GE ports for upstream transmission using the control board or upstream board (in the first of the two slots for the upstream board), which is controlled by the electronic switch.
– Providing four GE ports for upstream transmission using the upstream board (in the second of the two slots for the upstream board). Either the last GE port or VoIP daughter board can be used for upstream transmission, which is controlled by the electronic switch.
Port
The ports of the H801SCUB board are located on the front panel of the board.
Port | Function | Connection |
CON (RS-232 serial port) | Supports local and remote maintenance and allows users to configure the system on the CLI by using the software such as Hyper Terminal. The default baud rate is 9600 bit/s. | Use a local maintenance serial port cable to connect the port to the serial port of the maintenance terminal. |
ETH (10/100M Base-T maintenance network port) | Supports local and remote maintenance and allows users to configure the system through the network port. It works in the fullduplex mode. | Use a network cable to connect the port to the network port on the maintenance terminal. |
ESC (RS-485 monitoring serial port) | Provides the environment monitoring channel. | Use an environment monitoring cable to connect the port to the serial port of the monitored device. |
Four SFP GE ports | Used for upstream transmission or cascading. | Insert an optical module and use a cable to connect the port to the GE port of the upperlayer device or the cascaded device. |
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