User guide

Ubee U10CO35 Cable Modem User Guide, v10_30_10
Ubee Interactive 19
Item
Description
transmission of specific traffic types (maintenance, short
packets, long packets, or unsolicited grants, such as those for
voice traffic).
Differential Encoding
Displays the current differential encoding state (ON/OFF).
Preamble Length
Displays the current preamble length, 0-1536 (bits) used for
synchronization.
Preamble Value Offset
Displays the current preamble value offset, 0-1534 (bits).
FEC Error Correction (T)
Displays the FEC (forward error correction): 0 to 16 (0 implies
no FEC. The number of codeword parity bytes is 2*T).
FEC Codeword Information
Bytes (k)
Displays the current FEC codeword information bytes.
Fixed: 16 to 253 (assuming FEC on). Shortened: 16 to 253
(assuming FEC on).
Maximum Burst Size
Displays the maximum burst size, 0-255 (mini-slots) for data
transmission
Guard Time Size
Displays the guard time size, 4-255 (symbols).
Last Codeword Length
Displays the last codeword length, FIX/SHORT.
Scrambler on/off
Displays the state of the scrambler, ON/OFF.
Refresh
Click to re-display the current state of information in this screen.