Real Time

Data (HSR 16QAM Burst - Advanced)

HSR 16QAM Burst - Advanced is a coded channel that is available with Option QFP.To open the Data node, click Data in the tree view. The figure below shows the Data node.

The timeslots shown below are set to show all of the available timeslot types, not to show a typical test configuration.

1. Data (HSR 16QAM Burst)

Tail Bits 1 (16 bits)

Data

Training Sequence Bits (124 bits)

Tail Bits 2 (16 bits)

Guard Period (4n bits)(4n bits entry)

2. Control Frame

Data for Control Frame

Change Data Values Button

Click to display a drop-down menu in which you can copy a timeslot configuration from one timeslot to another.

Data Node Parameters

Use the Data window to define the bits in the bursts. The cells displayed in the Data section are determined by the burst type (Timeslot Type) for the selected timeslot as defined in the Timeslots window. In the window shown above, Timeslot 0 is set up for a data HSR 16QAM Burst.

HSR 16QAM Burst Bits

1. Data (HSR 16QAM Burst)

Tail Bits 1 (16 bits)

Default: X"166D"

Click the Details button in this cell to open the Data Source Selection. Enter 16 bits to use in the first of the two tail bit segments of the HSR 16QAM burst. See Closeddrop-down figure. 

The buttons in this window are described in Marker Source Selection.

Import

Click Import to open a dialog box in which you can navigate to and import a pre-defined pattern file. The imported file automatically updates the user data entry area. The software accepts the following file types:

The maximum file size is 65536 bits. If the imported file is larger than 65536 bits, the software truncates the bits to conform to the maximum file size.

Export

Click Export to open a dialog box in which you can save the current data pattern to a file. You can save the data pattern as one of the following file types:

Clear

Click Clear to clear all data displayed in the user data entry area.

Insert PN9

Click Insert PN9 to insert a fixed psuedo-random bit sequence (pattern) containing 511 bits (29-1) into the user data entry area. The software generates this fixed pattern in accordance with the CCITT recommendation 0.153. You can click this button repeatedly to add additional PN9 sequences until the maximum file size is reached (65536 bits). If the maximum file size is exceeded, the software truncates the excess data. 

To edit the existing data pattern after reaching the maximum file size, insert the cursor at the desired point in the file and press Insert PN9 or use the keyboard 1 and 0 keys. The software inserts the data at the cursor position and truncates data in excess of 65536 bits.

Insert PN15

Click Insert PN15 to insert a fixed pattern psuedo-random bit sequence containing 32,767 bits (215-1) into the user data entry area. The software generates this fixed pattern in accordance with the CCITT recommendation O.153.

To edit the data pattern, insert the cursor at the desired point in the file and click Insert PN15, or enter the information manually using the keyboard keys 1 and 0. The software inserts the data at the cursor position and truncates all data in excess of 65536 bits.

Data

Choice: PN9 |PN15 | User Defined Bits

Default: PN9

Click the Details button in this cell to open the “Data source selection” window.

Please select PN9, PN15 or User Defined Bits for encrypted bits.

Select User Defined Bits, to create a custom data string. (See User Defined Bits description)

Training Sequence Bits (124 bits)

Choice: TSC0 to TSC7 | User Defined Bits

Default: TSC0

Select TSC0 to TSC7 or User Defined Bits to use for the training sequence bits.

Click the Details button in this cell to open the ClosedData Source Selection window.

If you have selected 16QAM All timeslots HB from the Pre-defined Timeslot Configuration dialog, the default training sequence corresponds to the timeslot number. For example, the default for timeslot 0 is TSC0, the default for timeslot 1 is TSC1, and so on.

If you manually change a timeslot to an HSR 16QAM Burst, the training sequence for that timeslot is automatically set to TSC0.

The training sequences are defined as follows:

TSC0

3F3 3F33 3F3F FFFF FF33 F3FF FF33 FFF3

TSC1

FFF 33FF 333F FFFF 3F3F F3F3 33F3 3F33

TSC2

F33 FFF3 FFF3 3F3F F3FF FFF3 33F3 F333

TSC3

333 3FFF 3333 33F3 3FFF 3F3F F33F 3F33

TSC4

F3F 33FF F333 FF3F F33F 3FFF FFFF 3F33

TSC5

33F 3F33 FF3F 3FFF 33F3 3333 3FFF 3333

TSC6

F3F FFFF F3FF 3F33 3FFF 3FF3 33FF F3F3

TSC7

F3F FFFF 3FF3 F3FF F333 3FF3 FFF3 FF33

Select User Defined Bits to define custom training sequence bits. See the Closeddrop-down figure.

The buttons in this window are described in Tail Bits 1.

Tail Bits 2 (16 bits)

Default: X"166D"

Click the Details button in this cell to open the ClosedData Source Selection window. Enter 16 bits to use in the second of the two tail bit segments of the HSR 16QAM burst.

The buttons in this window are described in Tail Bits 1.

Guard Period (42 bits)(44 bits entry)

Default: X”FFFFFFFFFFF”

Click the Details button in this cell to open the ClosedData Source Selection window.

The buttons in this window are described in Tail Bits 1.

The Timeslot Timing Mode is set to 187.5 symbols x 8 timeslots, the Guard Period is defined as follows:

The guard period in all timeslots has 42 bits (44 bit entry) with a default value of X”FFFFFFFFFFF”.

2. Control Frame

Data for Control Frame

Choice: PN9 |PN15 | User Defined Bits

Default: PN9

Set the data for the control frame within a multiframe setup. Click the Details button in this cell to open the ClosedData Source Selection window. 

Select PN9, PN15 or User Defined Bits. Select User Defined Bits, to Closedcreate a data string.

The buttons in this window are described in Marker Source Selection.

If the Multiframe type parameter at the Carrier n node is set to 13 Multiframe with idle frame, the Data for Control Frame parameter, while appearing as active, has no effect since there is no control frame.

Related Topic

Timeslot (Advanced)