This table is used to read the OPT-RSP message for a given OFDM DS channel. One of the main issues for the modeling for OPT-RSP is that all OPT responses will not be alike. Some tests will only require 1 test or maybe a combination of one or more tests. As a result, this table needs to be able to gather the needed data for each CM and provide that to the PMA. MER data from the CM will be recorded as a series of hex values (0x00 to 0xFF) that will represent the MER values that the CM has measured. These values are gathered from the first active subcarrier to the last active subcarrier in the OFDM channel definition. The data from the CM will not contain pairs of values (subcarrierId and MER value) but just the subcarrier MER value. For the PMA to make sense of the data, the CCAP must provide the first active subcarrier to allow the PMA to know where it should start associating the values from the CM to the individual subcarriers defined in the channel.