H83DVCMM

H83DVCMM is a 48-channel VDSL2 service board that provides the VDSL2 access service. It does not have an embedded splitter. It supports vectoring and metallic line testing (MELT).

Functions and Specifications

For details, see Differences Between VDSL2 Service Boards.

Power Consumption

For details, see Board Power Consumption.

Working Principles

Figure 1 shows the working principles of the H83DVCMM board.

Figure 1 Working principles of the H83DVCMM board

The basic working principles of the H83DVCMM board are as follows:

• The switch module switches the interface of the backplane to the interface of the chipset module.

• The chipset module implements functions, such as amplification, filtering, A/D and D/A conversion, coding/decoding, and encapsulation/decapsulation for signals.

• The protection module protects and isolates the board from lightning strikes.

• The control module decodes signals and monitors signals.

• The power module supplies power to other function modules of the board.

• The clock module provides working clock for other function modules of the board.

Front Panel Port

Indicator

Pin Assignments

Table 1 and Table 2 describe pin assignments of the xDSL ports on the front panel of the H83DVCMM board.