Table of configuration items configurable on a QAM Channel basis. There are 48 Output Transport Streams (OTS) on an APEX1000. There can be up to 48 QAM Channels on an APEX1000 depending on how the 3 QAM slots are populated. There is a one-to-one mapping between QAM Channels and Output Transport Streams. QAM Channel (OTS) ranges are mapped to QAM slots as follows: Slot Channels 1 1..15 2 15..32 3 33..48 There can be either 4 or 8 QAM channels (OTS) on each RF Port. The slot and RF Port to QAM Channel (OTS) mappings for each QAM Module type are shown below. For a 2x4 or 2x8 QAM Module, QAM Channels (OTS) are mapped to RF Ports in a QAM Slot and table rows as follows: QAM Channel RF Port and OTS Slot/Port Table Row Table Rows 1/1 1 1..8 1/2 2 9..16 2/1 5 17..24 2/2 6 25..32 3/1 9 33..40 3/2 10 41..48 If a 2x4 QAM Module is in a slot, only the first four rows in this table for the slot/port are to be used. For example, if there is a 2x4 module in slot 3, rows 8..12 are to be used for configuring the QAM Channels of RF Port 1 on the module. For a 4x4 QAM Module, QAM Channels (OTS) are mapped to RF Ports in a QAM Slot and table rows as follows: QAM Channel RF Port and OTS Slot/Port Table Row Table Rows 1/1 1 1..4 1/2 2 5..8 1/3 7 9..12 1/4 8 13..16 2/1 3 17..20 2/2 4 21..24 2/3 9 25..28 2/4 10 29..32 3/1 5 33..36 3/2 6 37..40 3/3 11 41..44 3/4 12 45..48 Note that the QAM Channels on an RF Port are designated with the letters 'A'..'H' on the APEX Element Manager. Refer to the description of apexQamChannelConfigTable for information on QAM Channel to RF Port mapping. Tables apexQamRfPortChannelInfoTable and apexQamChannelIdTable can be used to assist in referencing between QAM slots, RF Ports, and QAM Channels (Output Transport Streams) for the installed modules. Once written, the change to this table will only take immediate effect after apexQamConfigApplyChange is set to 'apply'. In order for the change to persist through subsequent reboots or power cycles, the change must be saved via the apexSaveConfig parameter. @Config(config=yes, reboot=no) @Commit(param=apexQamChannelConfigApplyChange, value=2) @Save(apexSaveConfig, value=2) @File(config.ini, type='ini')