Off
User [32] bit, User [2048] bit
PRBS 9 to PRBS 31
QRSS 20
Fox Pattern, Fox (CMA3000)
All 0's, All 1's
Alternating 1:1, Alternating 1:3, Alternating 1:7, Alternating 3:24
Touch 'Normal' or 'Inverse' pattern type.
Touching the 'ITU standard' button will apply ITU-T O.150 recommended
Pattern type for N x 64 kbps data rates (PRBS 11).
User pattern
User pattern field is enabled if Pattern type is set to User [32] bit or User
[2084] bit. Touch the User pattern field and use the launched Pattern
Editor dialog box to define the user pattern. Depending on the selected
pattern type, different user pattern setup options will be available.
The length can be any length from 1 bit to 32 bits or from 1 bit to 2048 bits.
Unused time slots
Touch the Unused time slots button and use the dialog box to define the
unused time slots.
In the Unused Time Slots dialog box, change the individual bits by
touching on the relevant bit keys - this will toggle the bit key's binary value
from logic 1 to 0 or vice versa. Touch Ok to accept the changes and close
the dialog box.
Pattern time slots
Touch the Pattern time slots graphics and use the dialog box to select the
timeslots in which the pattern will be inserted. Set and clear timeslots as
relevant.
Channel contents
Use the top Channel contents drop-down menu to select where to
transmit the previously defined signal in the timeslot. The signal can either
be a speech sequence or a tone, as defined in the tone fields:
Off: No channel content is selected.
Tone: Tone with specified frequency and level.
Transparent: Received content in the same channel time slot is used.
Speech: Pre-programmed speech sequence. 'Drop and insert' on Tx
screen will be switched to On.
Channel Time Slot
Touch the Channel Time Slot graphics and use the launched dialog box to
select the timeslot to insert the Audio signal.
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