Agilent Technologies Portable Generator 81250 User Manual

Agilent 81250 ParBERT SONET/SDH Frame Generator  
User’s Guide  
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Contents  
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Introduction to the Frame Generator  
The SONET/SDH Frame Generator (referred to as the Frame  
Generator) is a software application for generating SONET and SDH  
frames for ParBERT.  
What the Frame Generator Does  
The Frame Generator allows one or more structured patterns (also  
known as frames) to be specified and generated for SONET testing by  
ParBERT. It provides you with a graphical user interface (GUI) for  
entering basic frame patterns, and lets you modify (manually) the  
resulting frame files.  
See “Using the Frame Generator” on page 7 for more information on  
how to use the frame generator.  
Installing the Software  
The Frame Generator is part of the ParBERT installation. If you would  
like to install the Frame Generator on another computer (for example,  
to generate and edit frame files on a laptop), use the normal ParBERT  
installation CD, and select only the Frame Generator installation.  
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Introduction to the Frame Generator  
Installing the Software  
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Using the Frame Generator  
This topic provides a short overview of what you have to do to  
generate frames for use in ParBERT.  
The following figure provides an overview of the workflow.  
Define files to be  
generated  
Set up pattern in GUI  
Generateframefile  
Generateframefile  
Edit framefile  
and segment files  
Generate segment  
files  
Import segment files  
intoParBERT  
Figure 1 SONET Workflow  
The following steps have to be performed to generate SONET frames  
for ParBERT:  
1. If not all files are needed, the files to be generated can be selected.  
The dialog box for this is opened over File -> Generation Setting.  
By default, all files are selected.  
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Using the Frame Generator  
Generating Frame Files  
2. The settings for the frames to be generated are made on the GUI.  
See “How Frames are Generated” on page 13 for information about  
the Frame Generator.  
3. The selected files are generated by selecting the File Save Menu  
button.  
This opens the Save as dialog box, where you can select the file  
name and path for the files to be generated.  
4. Import the files into ParBERT.  
information.  
In case the frames have to be modified, the following must be done:  
5. The frame files are edited. Any text editor can be used for this (that  
can handle the size), such as WordPad.  
“Editing Frame Files” on page 9 provides notes about what should  
be considered when editing frame files.  
6. The segment files are generated from the frame files by selecting  
File -> Convert Frame(s).  
This generates the necessary segment files for the ParBERT  
analyzer and generator.  
See “Converting Frame Files” on page 12 for more information.  
You can then import these files to ParBERT.  
Generating Frame Files  
The GUI provides various fields for configuring the patterns. See  
about the various GUI elements.  
It is recommended to read “How Frames are Generated” on page 13.  
Here you can find information about SONET frames, and how the  
various frame sections are manipulated.  
When you have made your settings, select File -> Save as, click File  
Save Menu, or click the Save File button. This opens up the Save As  
dialog box, where you can select the file path and name.  
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Importing Frames into ParBERT  
Using the Frame Generator  
Importing Frames into ParBERT  
When the frames have been generated, they have to be imported to  
ParBERT, where SONET tests can then be carried out.  
Editing Frame Files  
The Frame Generator allows one or more structured patterns (or  
frames) to be specified and generated. The pattern is written into a  
frame file and/or segment file. The segment file can be imported into  
the ParBERT.  
The following is an example of the start of an *.hfm file.  
#Col.  
#
Rows of OC-3  
R1 R2 R3 R4 R5 R6 R7 R8 R9  
Rows of ignore_flags  
R1 R2 R3 R4 R5 R6 R7 R8 R9  
#--------------------------------------------------------------------------  
C1.1  
C1.2  
C1.3  
f6  
f6  
f6  
0 ff 6a  
0 55 6a  
0 aa 6a  
0
0
0
0
0
0
0
0
0
0
0
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
0 60  
0 60  
#--------------------------------------------------------------------------  
C2.1  
C2.2  
C2.3  
28  
28  
28  
0 aa  
0 55  
0 f0  
a
a
a
0
0
0
0
0
0
0
0
0
0 60  
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
0
0
0
0
#--------------------------------------------------------------------------  
C3.1  
C3.2  
C3.3  
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
1 df  
1
0
#--------------------------------------------------------------------------  
C4.1  
C4.2  
C4.3  
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
#--------------------------------------------------------------------------  
C5.1  
C5.2  
C5.3  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
#--------------------------------------------------------------------------  
C6.1  
C6.2  
C6.3  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
#--------------------------------------------------------------------------  
C7.1 0 0 0 0 0 0 0 0 0  
0
0
0
0
0
0
0
0
0
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Using the Frame Generator  
Editing Frame Files  
C7.2  
C7.3  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
#--------------------------------------------------------------------------  
C8.1  
C8.2  
C8.3  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
0 0 0 0 0 0 0 0 0  
These files can be edited by any editor as text file. For better  
recognition of the relevant lines, each line begins with a counter with  
the format C<column>.<sts-nr>.  
Please note the following when you edit frame files:  
• It is recommended only to edit patterns that have not been  
scrambled. Otherwise, the changed bytes have to be scrambled  
manually.  
• “#” comments out a line (you can add any number of comment  
lines).  
• Do not edit parity bytes. When frame files are converted, all parity  
bytes are recalculated. Any changes you made to parity bytes are  
lost.  
• The synchronizing pattern in row 3, column 1 to 6 may be edited.  
However, there may be problems if this pattern is not unique within  
the frame.  
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Selecting the Files to be Generated  
Using the Frame Generator  
Selecting the Files to be  
Generated  
You can optionally select the files to be generated. By default, all files  
are generated. You can change this selection in a dialog box that opens  
when you select File -> Generation Setting.  
Figure 2 File generation dialog box  
You can select from the following files:  
Frame Files (*.hfm)  
These files are in an human-readable intermediate format that can  
only be interpreted by the SONET tool.  
Analyzer Files (*_ana.seg)  
These files are imported into ParBERT for the analyzer.  
Generator Files (*_gen.seg)  
These files are imported into ParBERT for the generator.  
B Bytes Files (*.bbs)  
These files are for information only about the generated parity bytes  
(B1 to B3 bytes).  
Automatic Production If you are not going to edit the frame files, you have to select Analyzer  
File and Generator File.  
Manual Production If you are going to edit the frame files, you only have to select Frame  
File.  
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Using the Frame Generator  
Converting Frame Files  
Converting Frame Files  
Once the frame files have been generated (and edited), they must be  
converted to segment files for use by ParBERT.  
This is done by the following:  
• Selecting File -> Convert Frame(s).  
• Clicking the Convert Frames button.  
These both open the Open dialog box, where you can select the *.htm  
file to be converted.  
After you have entered a file name and clicked Open, the following  
dialog box should appear:  
Figure 3 Convert Files dialog box  
The Scrambler should be set to On, the Segment width can be  
adjusted.  
The text in the dialog box indicates which files will be generated. If  
files that you need are not listed (for example, if you need to generate  
segment files for the analyzer, but these are not shown), or if an error  
message appears, check the settings in the Generation Settings dialog  
These files will be generated and overwritten without any further  
notice. If you want to save the files under different names, you have to  
click Change instead of OK.  
This opens the Open dialog box, where you can enter a different file  
name for each file to be generated. After you have changed or accepted  
all file names, the files are converted.  
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How the Frame Generator Works  
The following sections provide detailed specifications of the following:  
• How the Frame Generator generates frames  
This is described in the following section.  
• Coded Mark Inversion (CMI) coding  
• Synchronizing pattern  
How Frames are Generated  
The Frame Generator generates frames based on the settings made in  
the GUI. The following figure shows the different components of a  
frame.  
Section/RSoverhead  
Administrative unit pointer(s)  
Line/MSoverhead  
Transport Overhead  
Payload  
Figure 4 SONET Frame Structure  
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How the Frame Generator Works  
How Frames are Generated  
See the following sections for more information:  
This section describes how the section overhead is generated.  
This section describes how the line overhead and multiplexer  
overhead are generated.  
This section describes how the path overhead is generated.  
The section describes how the payload is generated.  
BIP Coding  
The SONET specification calls for Bit Interleaved Parity (BIP) of error  
monitoring. For the monitored section of signal, an error code is  
defined so that all there is an even number of 1s in the X bits, counting  
the monitored section and the error code. This is illustrated in the  
following figure.  
X bits  
Error code  
of frame  
1 0 1 1 0 0 1 1  
1 1 0 1 0 0 0 1  
1 0 1 1 1 1 0 1  
0 1 1 1 0 1 1 1  
1 0 1 1 0 0 1 1  
0 0 0 1 1 0 1 1  
Even number  
of 1s  
Figure 5 BIP-8 coding  
To ensure that the signal is correctly transferred, the error code byte  
of one frame is stored in a byte of the next frame. The receiver  
compares the calculated parity with the byte stored in the next frame  
to determine if the frame arrived correctly.  
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How Frames are Generated  
How the Frame Generator Works  
Payload Details  
The payload choices are:  
All 1s, all 0s, alternate 1s and 0s, various PRBS options, a binary file  
and a pattern editor.  
It is important to consider the possible lengths of the PRBS with  
respect to the supported frame sizes. The following table shows the  
payload sizes generated at various rates:  
Table 1 Rates and payload sizes  
Rate  
Payload size  
STS-768  
STS-192  
STS-48  
STS-12  
STS-3  
4.755.456 bits  
1.188.864 bits  
297.216 bits  
74.304 bits  
18.576 bits  
The PRBS have the following lengths and polynomials:  
Table 2 PRBS lengths and polynomials  
PRBS  
Length  
Polynomial  
PRBS 5  
PRBS 7  
PRBS 9  
PRBS 11  
PRBS 15  
PRBS 20  
PRBS 23  
PRBS 31  
31 bits  
x5 + x4 + x2 + x1 + x0  
x7 + x6 + x0, inverted  
x9 + x5 + x0  
x11 + x9 + 1, not inverted as CCITT 0.152  
x15 + x14 + 1, inverted, as CCITT 0.151  
x20 + x17 +1, not inverted as CCITT 0.151  
x23 + x18 +1, inverted, as CCITT 0.151  
X31 + X28 + x0  
127 bits  
511 bits  
2,047 bits  
32,767 bitsa  
1,048,575 bitsb  
8 388,607 bitsc  
2,147,483,657  
bitsc  
a
Fits within an STS-48 frame.  
Fits within an STS-192 frame.  
b
c
Exceeds the STS-768 frame size, but is included to provide some longer runs.  
The PRBS generators are initialized to all ones. The ones are shifted to  
the left by the number of bits expressed by the order of the polynomial  
(for example, PRBS 7: 0xffffffff << 7).  
The PRBS runs continuously and bulk-fills all payload bytes.  
The payload fill starts at channel 1, row 1, column 5.  
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How the Frame Generator Works  
How Frames are Generated  
NOTE Please pay attention to the following when defining the payload fill.  
• This is a bulk fill of the payload space, not a fill of each individual  
payload channel.  
• Since this is a repeating frame, there is a discontinuity of the PRBS  
at the boundary between the last payload byte and the first payload  
byte in the next transmitted frame if the number of generated  
frames is not a multiple of the PRBS length (for example, 27– 1  
frames are needed to create a continuous PRBS 7 payload).  
• The fill start address of the PRBS payload is channel 1, row 1,  
column 5, which corresponds to a pointer with the address of  
522Dec  
.
• When a binary file is selected as payload, there will be a chance that  
the synchronizing pattern for the ParBERT appears also within the  
payload. If so, the ParBERT will not be able to synchronize.  
SONET Path Overhead and SDH HP  
Overhead Details  
This section describes how the path overhead is handled (and  
manipulated) with the application.  
B3 Byte  
General A path error monitoring function is implemented in the SONET  
specification. This function is incorporated as BIP-8 code, which is  
stored in the B3 byte of each frame. See “BIP Coding” on page 14 for  
details about BIP-8 coding.  
The path error monitoring code of a frame is calculated from the path  
overhead and payload of the previous frame (and includes the frame’s  
B3 byte).  
Single B3 Error When a BIP (B3) error is selected, a single B3 error per frame is  
generated.  
To generate a B3 error (in channel one only), one bit in a selected  
payload byte is complimented (that is, it is XORed with 0000 0100).  
The selected payload byte is the byte positioned to the right of the B3  
byte, located at channel 1, row 6, column 5. The B3 byte itself remains  
unchanged.  
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How Frames are Generated  
How the Frame Generator Works  
G1 Path Status Byte  
The G1 path status byte is affected by the following alarms:  
• L-AIS / MS-AIS  
• HP-REI  
• L-RDI / MS-RDI  
Depending on which alarm is selected, the G1 path status byte is  
affected as follows:  
• No errors: 0000 0000  
• AIS on: xxxx 0111  
• HP-REI: 0001 0000  
All Other Path Overhead  
All other path overhead bytes will contain 0000 0000prior to  
scrambling.  
SONET Line Overhead and SDH MS  
Overhead Details  
Pointer Bytes  
All H1 bytes will be set to “not new data” and contain offset zero  
(0110 0000).  
All H2 bytes will contain offset zero (0000 0000).  
All H3 bytes are undefined when there are no pointer negative  
justifications; (pointer increment and decrement are not available), H3  
will be used to allow a fixed B2 value, see “Single B2 Error” on  
page 18 below.  
K2 Byte  
The K2 byte is only set for the first frame.  
It is affected by the following alarms:  
• L-AIS / MS-AIS  
• L-RDI / MS-RDI  
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How the Frame Generator Works  
How Frames are Generated  
Depending on which alarm is selected, the K2 byte is set as follows:  
• No errors: 0000 0000  
• AIS on: 0000 0111  
• RDI on: 0000 0110  
For the alarm condition, no other action is taken concerning any  
payload or other overhead bytes, these are all unchanged from the  
normal (no errors) state.  
The K2 bytes in all other frames are unused and are set to 0000 0000  
.
B2 Bytes  
General A path error monitoring function is implemented in the SONET  
specification. This function is incorporated as BIP-8 code, which is  
stored in the B2 bytes of each frame. See “BIP Coding” on page 14 for  
details about BIP-8 coding.  
The path error monitoring code of a frame is computed over all bits of  
the previous STM-N frame, except for the first three rows of SOH, and  
is placed in the B2 bytes of the current frame before scrambling.  
Single B2 Error You can specify a single B2 error per frame.  
To generate a B2 error (in channel one only), bit 3 in the pointer H3  
byte is complimented.  
The B2 byte itself remains unchanged.  
All Other Line Overhead  
All other line overhead bytes contain 0000 0000prior to scrambling.  
SONET Section Overhead and SDH RS  
Overhead Details  
B1 Byte  
General A section error monitoring function is implemented in the SONET  
specification. This function is incorporated as BIP-8 code, which is  
stored in the B1 bytes of each frame. See “BIP Coding” on page 14 for  
details about BIP-8 coding.  
The section error monitoring code of a frame is computed over all bits  
of the previous STM-N frame after scrambling, and is placed in the B1  
byte of the current frame before scrambling.  
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How Frames are Generated  
How the Frame Generator Works  
Single B1 Error The user can specify a single B1 error per frame.  
To generate a B1 error (for channel 1 only), one 1 of a selected byte is  
complimented (the byte is XORed with 0000 0001).  
The selected byte is located at channel 1 (SONET) or channel 1-a  
(SDH), row 3, column 1. This byte is unused by the signal.  
The B1 byte itself remains unchanged.  
Framing  
A complete framing pattern (3, 12, 48, 192, 768 x F6 + 3, 12, 48, 192,  
768 x 28) is generated.  
Out Of Frame (OOF)  
Out Of Frame is generated by inverting the first A1 byte (F6 becomes  
09), and the first A2 byte (28 becomes D7).  
J0/Z0 Section Trace/Growth Bytes  
For SONET, the STS-768 ID J0 byte will always be 1.  
For SDH, the STM-256 ID J0 bytes will be numbers 1, 2, 3 to 0.  
For SDH, the undefined Z0 bytes will be set to AA(1010 1010) (the  
physical sequence will be: 1, 2, 3, 4, ... 255, 0, AA, AA, ... AA, AA).  
Similar numbering applies to all other frames.  
All Other Section Overhead  
All other section overhead bytes will contain 0000 0000prior to  
scrambling, except the D1, D2 and D3 bytes, which are used for  
synchronizing.  
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How the Frame Generator Works  
CMI Coding  
CMI Coding  
CMI coding is a method of converting binary data into an electrical  
signal. Bits with the value are given bipolar levels (alternating  
positive/negative voltages). Bits with the value are represented by  
1
0
two voltage levels, a negative then positive level, within the same time  
span normally used for one digit. This type of code maintains the  
signal at the digital clock rate, improving signal synchronization.  
For example: Binary 0 1 1 0 1 0 1 1  
is converted to: 01 11 00 01 11 01 00 11  
NOTE When CMI coding is used, the frequency of the ParBERT has to be  
doubled.  
NOTE There are a few combinations of settings where the generated  
synchronizing pattern is not unique (for example, segment width 8,  
STS 48 and STS 192). This can be a problem with very regular CMI  
pattern but should not appear with other widths.  
Synchronizing Pattern  
ParBERT needs a synchronizing pattern of 48 bits per channel (where  
segment width = 1). This pattern is inserted in the D1, D2 and D3 bytes  
of the section overhead as long as needed.  
Lower rates are restricted to lower segment widths (see table below).  
The following patterns are used:  
• For scrambled and non-scrambled frames:  
Five fixed bytes: 0xff 0x55 0xaa 0xaa 0x55  
Followed by one counter byte: 0xf0 0xe1, ... 0x0f  
,
The complete pattern would be, for example:  
0xff 0x55 0xaa 0xaa 0x55 0xf0  
• For CMI-coded frames (doubled frequency): 0xf5 0xaa 0x5f  
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Synchronizing Pattern  
How the Frame Generator Works  
When inserting a binary payload, you have to make sure that this  
pattern (with scrambling) is not used within the payload.  
The following table shows how the payload size is determined by the  
segment width and the different rates.  
Table 3 Possible Combinations of Rate and Segment Width  
STM-1 /  
STS-3  
STM-4 /  
STS-12  
STM-16 /  
STS-48  
STM-64 /  
STS-192  
STM256 /  
STS-768  
Segment widtha  
1
48 Bits  
96 Bits  
192 Bits  
384 Bits  
576 Bits  
768 Bits  
72 Bits  
48 Bits  
48 Bits  
48 Bits  
48 Bits  
2
96 Bits  
96 Bits  
96 Bits  
96 Bits  
4
192 Bits  
384 Bits  
576 Bits  
768 Bits  
288 Bits  
192 Bits  
384 Bits  
576 Bits  
768 Bits  
1152 Bits  
192 Bits  
384 Bits  
576 Bits  
768 Bits  
4608 Bits  
192 Bits  
384 Bits  
576 Bits  
768 Bits  
18432 Bits  
8
12  
16  
D1-D3 (in Bits)  
a
Note: The areas in gray are unavailable combinations.  
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How the Frame Generator Works  
Synchronizing Pattern  
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Graphical User Interface Reference  
The Frame Generator’s Graphical User Interface (GUI) is relatively  
simple; the following is a short description of the GUI elements, tool  
bar and menus.  
Menus  
Tool bar  
Settings area  
Status bar  
Figure 6 SONET GUI  
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Graphical User Interface Reference  
Settings Area  
Settings Area  
NOTE Some elements of the setting area are invisible if you select CID for  
Mode. The invisible elements are not available for CID.  
The following is a list of the elements of the settings area:  
Mode  
Defines the following modes.  
Normal specifies a single frame of a SONET/SDH signal.  
CID specifies a Consecutive Identical Digit pattern.  
Format  
Defines the frame format to be generated; can either be SONET,  
SONET-C, or SDH.  
Scrambler  
Determines whether or not the payload is scrambled. The SONET /  
SDH 27 PRBS standard is used for scrambling.  
CMI  
Defines whether or not the frame is coded in the Coded Mark  
Inversion format, which means doubled frequency.  
If you select CMI, make sure you double the frequency on the  
ParBERT.  
See “CMI Coding” on page 20 for more information.  
Frame(s)  
Determines how many patterns are to be generated in the frame  
file.  
Single specifies one pattern.  
Multiple lets you select the number of patterns to be generated.  
NOTE  
When setting up the frame files, please keep the ParBERT memory  
restrictions in mind. The available memory depends on the data  
generator/analyzer modules installed and on the port frequency.  
For example, a ParBERT 43G system equipped with eight E4861B  
modules and running at a data rate above 42.67 Gbit/s can have a  
memory capacity of 16 Mbit per channel.  
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Settings Area  
Graphical User Interface Reference  
Rate  
The rate available depends on the selected Format. The following  
rates are available:  
SONET (-C)  
SDH  
STS-768 (39.81312 Gb/s) STM-256  
STS-192 (9.95328 Gb/s) STM-64  
STS-48 (2.48832 Gb/s)  
STS-12 (622.08 Mb/s)  
STS-3 (155.52 Mb/s)  
STM-16  
STM-4  
STM-1  
Payload  
This field defines how the payload is generated. You have the  
following choices:  
– All 0s  
– All 1s  
– Alternate 1, 0  
– Various PRBS settings  
Edit pattern  
This opens the Pattern Editor, which allows you to enter a  
pattern (see following description).  
From file  
This opens up a dialog box, where you can select the file to be  
used as payload.  
This must be a binary file.  
See “Payload Details” on page 15 for more information.  
Segment width  
Lets you define the segment width used. This has to match  
multiplexer type used.  
Pattern Editor  
Allows you to define a pattern (  
0s and 1s) for the payload to be  
generated. The bits entered are repeated to fill up the payload.  
Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002  
25  
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Graphical User Interface Reference  
Settings Area  
Errors  
Allows you to specify errors that are to be generated in the first  
frame.  
SONET (-C)  
SDH  
S-BIP (B1)  
L-BIP (B2)  
P-BIP (B3)  
None  
RS-BIP (B1)  
MS-BIP (B2)  
HP-BIP (B3)  
None  
Alarms  
Allows you to specify alarms that are to be generated in the  
patterns.  
SONET (-C)  
SDH  
OOF  
OOF  
L-AIS  
L-FERF  
P-FEBE  
None  
MS-AIS  
MS-RDI  
HP-REI  
None  
Mask Analyzer B Bytes  
When you select this option, the B bytes (error monitoring bytes) for  
the analyzer are masked.  
File Save Menu button  
Opens the File Save dialog box, where you can select a file name and  
path for the frame files to be generated. See “Generating Frame  
Files” on page 8 for more information.  
Exit button  
Closes the application.  
26  
Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002  
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Menus  
Graphical User Interface Reference  
Menus  
The Frame Generator contains the following menus, which enable you  
to save files and change appearances of the application:  
File menu  
View menu  
Help menu  
These are described in the following sections.  
File Menu  
The File menu contains the following elements:  
Save as ...  
Opens the File Save dialog box, where you can select a file name  
and path for the frame files to be generated. See “Generating Frame  
Files” on page 8 for more information.  
Convert Frames  
Opens the Open dialog box, where you can select files that are to be  
converted into frames that can be imported into ParBERT. See  
Exit  
Closes the application.  
Generation Setting  
Opens up a dialog box that lets you select which files are to be  
generated. You can select any combination of the following:  
Frame Files  
Analyzer Files  
Generator Files  
B Bytes Files  
See “Settings Area” on page 24 for more information.  
Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002  
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Graphical User Interface Reference  
Tool Bar  
View Menu  
The View menu contains the following elements:  
Tool Bar  
Shows/hides the tool bar.  
Status Bar  
Shows/hides the status bar.  
Help Menu  
The Help menu contains the following elements:  
about_frame_gen  
Opens up a message box that informs you about the version number.  
Help  
Opens the Online Help.  
Tool Bar  
The tool bar provides you quick access to most important Frame  
Generator functions. The following tools are available:  
Opens the Save as ... dialog box, where you can select the  
name and path of the files to be saved. See “Generating  
Frame Files” on page 8 for more information.  
Opens the Open dialog box, where you can select the  
previously generated files to be converted. See  
information.  
Opens a message box that informs you about the version of  
the software.  
28  
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Status Bar  
Graphical User Interface Reference  
Status Bar  
The status bar at the bottom of the GUI provides information about the  
status of the application. It also provides “pop-up” type tips for the  
menus and tools (when the mouse moves over a tool, for example, the  
status bar shows what the tool does).  
Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002  
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Graphical User Interface Reference  
Status Bar  
30  
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Index  
Index  
B
M
B1  
Menus  
byte 18  
error 19  
File 27  
Help 28  
overview 27  
View 28  
B2  
byte 18  
error 18  
O
B3  
byte 16  
error 16  
OOF (Out Of Frame) 19  
P
BIP coding 14  
ParBERT, importing frames 9  
Path overhead 16  
C
CMI coding 20  
Pattern, synchronizing 20  
Pointer bytes 17  
F
PRBS  
File generation 11  
Files, overview 11  
lengths 15  
polynomials 15  
Frame  
S
generation 13  
Frame Generator  
functionality 5  
introduction 5  
using 7  
SDH MS overhead 17  
SDH RS overhead 18  
Section growth 19  
Section overhead 18  
Section trace 19  
workflow 7  
Frames  
conversion 12  
editing 9  
generating 8  
Software installation 5  
Status bar 29  
Synchronizing pattern 20  
G
T
G1 byte 17  
Tool bar 28  
W
GUI  
overview 23  
settings area 24  
Workflow 7  
Z
H
HP overhead 16  
Z0 byte 19  
J
J0 byte 19  
K
K2 byte 17  
L
Line overhead 17  
Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002  
31  
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Index  
32  
Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002  
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