MTP2 TXC Configuration Bytes (ITU/ANSI)

Byte | Description | Value
--- | --- | ---
0x01 | LSSU size | 0x01 to 0x02 default = 0x01
0x02 | Mode | 0x00=Basic (default) 0x01=PCR 0x02=Japan TTC
0x03 | RTB size in SUs | 0x01–0x7F (127) default is 0x38 for Japan variants default=0x7F for non-Japan variants
0x04-0x05 | N2 Parameter Value (RTB byte size limit) | 0x0117 –0xFFFF (279–65535) default=0xFFFF
0x06 | Additional Interframe Flags | 0x00–0xFF (default=0x00)
0x07 | TFISU Pacing Ticks (Japan TTC only) | 0x01–0xFF (default=0x0C (24 ms))
0x08 | TLSSU Pacing Ticks (Japan TTC only) | 0x01–0xFF (default=0x0C (24 ms))
0x0A-0x0B | Congestion Level 1 Onset Threshold | 3200 octets (default) Default value represents 400 ms of queued MSUs at 64 kbps (457 ms@56kbps) Value must be less than or equal to the level 2 onset threshold. Value must be greater than the level 1 abate threshold.
0x0C-0x0D | Congestion Level 2 Onset Threshold | 4150 octets (default) Default value represents 519 ms of queued MSUs at 64 kbps (593 ms @ 56 kbps) This value must be less than or equal to the level 3 onset threshold. This value must be greater than the level 2 abate threshold.
0x0E-0x0F | Congestion Level 3 Onset Threshold | 5100 octets (default) Default value represents 638 ms of queued MSUs at 64 kbps (729 ms @ kbps) This value must be less than or equal to the level 4 onset threshold. This value must be greater than the level 3 abate threshold.
0x10-0x11 | Congestion Level 4 Onset Threshold | 8000 octets (default) Default value represents 1000 ms of queued MSUs at 64 kbps (1143 ms @ 56 kbps) This value must be greater than the level 4 abate threshold.
0x12-0x13 | Congestion Level 1 Abate Threshold | 1900 octets (default) Default value represents 238 ms of queued MSUs at 64 kbps (271 ms @ 56 kbps) This value must be less than the level 1 onset threshold.
0x14-0x15 | Congestion Level 2 Abate Threshold | 3500 octets (default) Default value represents 438 ms of queued MSUs at 64 kbps (500 ms @ 56 kbps) This value must be greater or equal to the level 1 abate threshold. This value must be less than the level 2 onset threshold.
0x16-0x17 | Congestion Level 3 Abate Threshold | 4500 octets (default) Default value represents 563 ms of queued MSUs at 64 kbps (643 ms @ 56 kbps) This value must be greater than or equal to the level 2 abate threshold. This value must be less than the level 3 onset threshold.
0x18-0x19 | Congestion Level 4 Abate Threshold | 5500 octets (default) Default value represents 688 ms of queued MSU at 64 kbps (786 ms @ 56 kbps) This value must be greater than or equal to the level 3 abate threshold. This value must be less than the level 4 onset threshold.