Fox (CMA3000) The 'fox pattern' using for the combined test with
CMA3000 (the previous model of Network Master)
All 0's, All 1's: All bits are 0, all bits are 1.
Alternating 1:1: Bit pattern such as "010101..."
Alternating 1:3: Bit pattern such as "100010001000..."
Alternating 1:7: Bit pattern such as "1000000010000000..."
Alternating 3:24: A repeating 24-bit sequence that contains three ones,
fifteen consecutive zeros and 12.5% average ones density.
You can select '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 field and use the launched 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 slot 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 Channel contents drop-down menu to select the signal
transmitting into the timeslot:
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 dialog box to select
the channel timeslot. If Speech or Tone is selected audio is inserted in
selected timeslot. If Transparent is selected, the destination for transparent
errors is selected.
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