Tektronix TDS 500C User manual

Supplement
TDS 500C, TDS 600B & TDS 700C
Digitizing Oscilloscopes
071-0090-01
This document supports firmware version 5.2 and
above.

Copyright Tektronix, Inc. All rights reserved.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.
Printed in the U.S.A.
Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

TDS 500C, TDS 600B & TDS 700C Supplement 1
Introduction
This document contains three supplements to the TDS 500C, TDS 600B, and
TDS 700C manuals:
TDS 580C Supplement provides information that extends the TDS 500C,
TDS 600B, and TDS 700C manuals to cover a new oscilloscope model, the
TDS 580C Digitizing Oscilloscope. See page 3.
Version 5.2 Firmware Supplement provides information that extends the
manuals to cover the new or changed functions that are available in the
TDS 500C and TDS 700C oscilloscopes, starting with firmware version 5.2.
See page 5.
Option 1G Supplement provides information that extends the manuals to
cover two oscilloscope models, the TDS 540C and TDS 754C Option 1G
Oscilloscopes. See page 29.

Introduction
2TDS 500C, TDS 600B & TDS 700C Supplement

TDS 500C, TDS 600B & TDS 700C Supplement 3
TDS 580C Supplement
The TDS 500C, TDS 600B, and TDS 700C model oscilloscope manuals also
cover an oscilloscope model that is not mentioned in those manuals, the
TDS 580C.
This supplement lists the differences between the TDS 580C and the TDS 784C,
which is the model that the TDS 580C is most like.
Except for the differences shown in the table below, The TDS 580C is identical
to a TDS 784C. Most of the information in your user manual (and other TDS
documents) that applies to the TDS 784C, also applies to the TDS 580C.
Like the TDS 784C, the TDS 580C provides four full-function channels,
digitizing rates to 4 GS/second, a 1 GHz analog bandwidth, and up to 50 K
record lengths (or longer with options 1M or 2M). The table below lists the key
areas where the TDS 784C and the 580C differ:
Feature 784C 580C
Display Color Monochrome
FFT Yes Optional(2F)
RS232 and Centronics Port Yes Optional(13)
Accessory Pouch Standard Available
(016-1268-00)
All options listed for the TDS 784C are available for the TDS 580C. The
TDS 784C, and the TDS 580C ships without probes. The probe options are:
Option 24. Add four P6139A passive oscilloscope probes.
Option 26. Add four P6245 1.5 GHz FET oscilloscope probes.
The option 1G, detailed in Option 1G Supplement in this document, is not
available for the TDS 580C.
The TDS 580C comes with the firmware features listed in Version 5.2 Firmware
Supplement in this document; no upgrade is required. See page 5.
Key Features
Options
Firmware

TDS 580C Supplement
4TDS 500C, TDS 600B & TDS 700C Supplement
The TDS 500C, TDS 600B, and TDS 700C Service Manual (optional accessory)
applies to the TDS 580C.
Use the part number listed for the TDS 784C when replacing the following parts:
Circuit Board Assembly: Acquisition A10
Front Panel Assembly A12
Use the part number listed for the TDS 520C, TDS 540C, TDS 620B, and
TDS 680B when replacing the following parts:
Display, Monochrome: 7-Inch A20
Filter, Lt, Crt: 6.525 X 5.225, ESP, EMC
Retainer, Filter: Dust Seal Assembly, Lexan
Use part number 334-8551-01 when replacing the Front-Panel Identification
Label.
Service Information

TDS 500C, TDS 600B & TDS 700C Supplement 5
Version 5.2 Firmware Supplement
This supplement describes new or changed functions that are available starting
with firmware version 5.2.
Masks
Masks now include the following functions.
Table 1 contains a complete list of available masks.
Table 1: Standard masks
SONET
SDH ITU-T T1.102 Fibre channel Video Ethernet Miscellaneous
None None None None None None None
OC1/STM0
51.84Mb/s DS-0 Sgl Single
64.4kb/s
DS1
1.544Mb/s FC133 Optical132.8 Mb/s 4fsc NTSC “D2” 143.18Mb/s GigabitEthernet Optical 1.25 Gb/s FDDI Halt 125Mb/s
OC3/STM1
155.52Mb/s DS-0 Dbl Double 64 kb/s DS1A 2.048Mb/s FC266 Optical265.6 Mb/s 4:2:2 “D1” 270Mb/s 100Base-TX UTP 125 Mb/s
OC12/STM4
622.08Mb/s DS-0 Data DataContra
64 kb/s
DS1C
3.152Mb/s FC531 Optical531.2 Mb/s 4:2:2SMPTE 259M-D
360Mb/s
100Base-TX
STP 125 Mb/s
DS-0 Tmg
Timing 64 kb/s DS2 6.312Mb/s FC1063 Optical1.0625 Gb/s 10 Base-T Idle (IDL) Time Details 10 Mb/s
DS-1Rate
1.544Mb/s DS3 Full Mask 44.736Mb/s FC133E Electrical132.7 Mb/s 10 Base-T Idle (IDL) Volt Details 10 Mb/s
DS-3Rate
44.736Mb/s DS3 TimeDetails 44.736Mb/s FC266E Electrical265.6 Mb/s 10 Base-T Idle (IDL) Full Mask 10 Mb/s
E1 Sym
Sym Pair
2.048Mb/s
DS4NA
139.26Mb/s FC531E Electrical531.2 Mb/s 10 Base-T Link Test Time Details 10 Mb/s
E1 Coax
CoaxPair
2.048Mb/s
DS4NA Mx
MaxOutput
139.26Mb/s
FC1063E
Electrical
1.0625Gb/s
10 Base-T Link Test
Volt Details 10 Mb/s
E2
8.448Mb/s STS-1 Eye Eye 51.84 Mb/s 10 Base-T Link Test Full Mask 10 Mb/s
E3
34.368Mb/s STS-1 Pulse 51.84 Mb/s
Available Masks

Version 5.2 Firmware
6TDS 500C, TDS 600B & TDS 700C Supplement
Table 1: Standard masks (Cont.)
SONET
SDH MiscellaneousEthernetVideoFibre channelT1.102ITU-T
E4 0
Binary 0
139.26Mb/s
STS-3
155.52Mb/s
E4 1
Binary 1
139.26Mb/s
STS-3 Mx
MaxOutput
155.52Mb/s
E5 CEPT
565Mb/s
STM1E 0
Binary 0
155.52Mb/s
STM1E 1
Binary 1
155.52Mb/s
If on, mask pass/fail testing displays the results in the Pass/Fail Testing side
menu. To start mask pass/fail testing, press MEASURE ➞Measure (main) ➞
Masks (pop-up) ➞Mask Counting (main). Then toggle Pass/Fail Test (side) to
On.
The Pass/Fail Test side menu displays the testing status:
Passing is displayed if, for the requested number of acquired waveforms, the
number of hits does not exceed the number of hits specified in the failure
threshold
Failed is displayed if there are hits greater than or equal to the Pass/Fail
Failure Threshold in the masks in the requested number of acquired
waveforms
OFF Passed or OFF Failed is displayed when the test is complete, based on
the result of the test
Pass/fail testing turns on mask counting and resets the mask count to 0.
Hits greater than or equal to the Pass/Fail Failure Threshold are a test failure. To
set the threshold, press MEASURE ➞Measure (main) ➞Masks (pop-up) ➞
Mask Counting (main) ➞Pass/Fail Failure Threshold (side). Then use the
general purpose knob or keypad to set the failure threshold.
Pass Fail Testing
Set the Failure Threshold

Version 5.2 Firmware
TDS 500C, TDS 600B & TDS 700C Supplement 7
The test continues until the minimum number of waveforms has been acquired.
To set the minimum number of waveforms, press MEASURE ➞Mea-
sure (main) ➞Masks (pop-up) ➞Mask Counting (main) ➞Set Minimum
Number of Waveforms (side). Then use the general purpose knob or keypad to
set the number of waveforms.
The Pass/Fail Bell menu controls whether the mask pass/fail test rings a bell. To
control the Pass/Fail Bell, press MEASURE ➞Measure (main) ➞Masks
(pop-up) ➞Mask Counting (main). Then toggle Pass/Fail Bell (side) to Off,
On Failed, or On Completion.
Off does not ring a bell
On Completion rings the bell when the test is complete
On Failed rings the bell when a failure is detected and when the test is
complete
Use the procedures in your manual. Also, if a user mask is active, Autoset
adjusts the selected trace to match the last standard mask selected, if possible.
Use the HORIZONTAL POSITION control or the Time Base Position menu to
manually align the waveform to a mask. Adjusting the HORIZONTAL POSI-
TION resets mask counting.
Use Mask Margins to determine if your signal passes with a specific margin. To
set a mask margin do the following steps:
1. To enable mask margins, press MEASURE ➞Measure (main) ➞Masks
(pop-up) ➞Mask Margins (main). Then toggle Mask Margins (side) to
On or Off. If a user defined mask has more than three masks, turning on
mask margins will generate an error. Turning Mask Margins off will set the
Margin Percentage to 0%.
2. To set the margin percentage, press Margin Percentage (side). Then use the
general purpose knob or the keypad to set the percentage. Mask margin
percentage moves the mask boundaries to reflect the selected margin.
Negative margins make it easier to pass a mask test.
Set mask options to determine which waveform the masks are compared against,
to turn masks on or off, to enable Autoset to a mask, to enable offset adjustment
to masks, and to enable the digital waveform filter (see Figure NO TAG).
To select the channel that is compared against the selected mask, press MEA-
SURE ➞Measure (main) ➞Masks (pop-up) ➞Mask Options (main). Then
Set the Minimum Number
of Waveforms
Ringing the Bell
To Autoset the
Oscilloscope
Adjusting the Horizontal
Position
Setting Mask Margins
Setting Mask Options

Version 5.2 Firmware
8TDS 500C, TDS 600B & TDS 700C Supplement
toggle Mask Source (side) to Ch1, Ch2, Ch3, or Ch4. Mask Source is not
available in InstaVu II, because all on channels contribute to the mask.
To turn defined masks on or off, press MEASURE ➞Measure (main) ➞
Masks (pop-up) ➞Mask Options (main). Then toggle Mask Display (side)
ON or OFF.
To invert a DS1, DS1A, DS1C, DS2, DS3, E1 Sym, E1 Coax, E2, E3, STS-1,
STM1E, or E4 mask, press MEASURE ➞Measure (main) ➞Masks
(pop-up) ➞Mask Options (main). Then toggle Invert Mask (side) ON or OFF.
When ON and you select one of the above masks, the created mask is for a pulse
of opposite polarity to that of the standard mask.
Mask
Margins
OFF
Figure 1: Mask menu
NOTE. If you select Manual, some controls are automatically adjusted; if you
select Auto, a complete Autoset is performed. Also, if a user mask is active,
Autoset adjusts the selected trace to match the last standard mask selected, if
possible.
To control whether an autoset is performed when a standard mask is selected,
press MEASURE ➞Measure (main) ➞Masks (pop-up) ➞Mask Op-
tions (main). Then toggle Std Mask Autoset (side) to Auto or Manual.

Version 5.2 Firmware
TDS 500C, TDS 600B & TDS 700C Supplement 9
NOTE. If you select OFF, offset is not adjusted when the DS–0, E1, E2, E3, or
T1.102 standards are selected.
To control whether a standard-mask autoset can adjust Vertical Offset to match
the waveform to the mask, press MEASURE ➞Measure (main) ➞Masks
(pop-up) ➞Mask Options (main). Then toggle Std Mask Offset Adj (side) to
ON or OFF.
To enable the optical reference receiver (option 3C and 4C), which is required by
some optical standards that require a Bessel-Thompson response, press MEA-
SURE ➞Measure (main) ➞Masks (pop-up) ➞Mask Options (main). Then
toggle Filter (side) to Enable. The Filter menu is not available on a TDS 794D.
To determine the calibration status of the communication filter, press SHIFT ➞
UTILITY ➞System (main) ➞Cal (pop-up). Then read the calibration status
from the Comm Filter menu. If the status is not Pass, refer the oscilloscope to
service personnel for repair or adjustment. The oscilloscope determines the status
at power-up.
Histograms
You can now move the histogram box.
To move the histogram box without changing its size, press MEASURE ➞
Measure (main) ➞Histogram (pop-up) ➞Histogram Box Limits (main).
Then toggle Move Box (side) to Horizontal or Vertical and use the general
purpose knob to move the histogram box. (The SELECT button will also toggle
Move Box.)
To save an image histogram, do the following steps:
1. Enter a mode where an image data base is generated (InstaVu II, Histograms,
and Mask counting) you want to save. Image Hist is grayed out if InstaVu II
is not active.
2. To store an image histogram, press SAVE/RECALL WAVEFORM ➞
Image Hist (pop-up) ➞Save Image Histogram (main).
3. Press To File (side). Then use the general purpose knob and the SELECT
button to select the drive (the file will contain over 800,000 bytes in deep
mode and over 400,000 bytes in shallow mode) and the exact file from the
resulting scrollbar list. Finally, press Save To Selected File (side) to
complete the operation.
To Move the Histogram
Box
To Save an Image
Histogram

Version 5.2 Firmware
10 TDS 500C, TDS 600B & TDS 700C Supplement
NOTE. Upon power on, the oscilloscope creates the “wild card” file, marked in
the file utilities menu by the name TEK?????.IMH and by a wild-card icon (shown
left), for storing image histograms. Selecting this file in step 3 stores an image
histogram in a uniquely named, sequentially numbered file. For instance, the
oscilloscope saves the first image histogram you save in the file
TEK00001.IMH, the second in TEK00002.IMH, and so on.
Recalling an image histogram stops acquisitions.
Applications
There are now more applications to choose from.
You can select and load an application into the APPLICATION menu. Then you
can control the application using the APPLICATION menus.
To select an application, do the following steps:
1. Press SAVE/RECALL SETUP ➞Select Application (main).
2. Then use the general purpose knob to select the exact file from the resulting
scrollbar list. Only files with .APP extensions are displayed. Finally, press
Activate Application (side) to complete the operation.
Setup and Hold Triggering
Keep the hold time setting to no more than 2.5 ns less than one-half the clock
period (hold time (period/2) – 2.5 ns) or the oscilloscope cannot trigger (this
assumes a 50% duty cycle clock).
Select an Application

Version 5.2 Firmware
TDS 500C, TDS 600B & TDS 700C Supplement 11
GPIB Command Descriptions
The following GPIB commands support the new or changed features.
MASK:PASSFail:BELl
TDS 500C & 700C Only
Turns the bell on for mask test failed or mask test complete, or turns the bell off.
Mask
 #  $  $  %


 



 

 turns the passfail bell on for test failed.
 turns the passfail bell off.
COMPLETE turns the passfail bell on for test completion.
 
!" !    
MASK:PASSFail:STATE
TDS 500C & 700C Only
Turns the mask conditional counting test ON or OFF.
Mask
Group
Syntax
Arguments
Examples
Group

Version 5.2 Firmware
12 TDS 500C, TDS 600B & TDS 700C Supplement
       


 




 
 or  = 0 turns passfail counting off.
 or  0 turns passfail counting on.
 
turns passfail counting on.
MASK:PASSFail:STATUs? (Query Only)
TDS 500C & 700C Only
Returns the result of the conditional mask test.
Mask

    

might return   indicating the test is passing.
MASK:PASSFail:THReshold
TDS 500C & 700C Only
Sets the minimum number of mask hits that is a test failure.
Mask
Syntax
Arguments
Examples
Group
Syntax
Examples
Group

Version 5.2 Firmware
TDS 500C, TDS 600B & TDS 700C Supplement 13
$! 
 is the minimum number of mask hits, from 1 to (2**30).
$! 
sets the minimum number of mask hits to 2.
MASK:PASSFail:WAVEform <nr1>
TDS 500C & 700C Only
Sets the minimum number of waveforms to be acquired for mask pass/fail
counting.
Mask
!# 
!# 
 
"


 
 is the minimum number of waveform acquisitions, from 1 to (2**30).
!# 
sets the minimum number of waveforms to 12.
TRIGger:MAIn:COMMunication:CMI:PULSEForm
TDS 500C & 700C Only
Sets or queries the communication trigger CMI pulse form to one of four
possibilities.
Trigger
Syntax
Arguments
Examples
Group
Syntax
Arguments
Examples
Group

Version 5.2 Firmware
14 TDS 500C, TDS 600B & TDS 700C Supplement
TRIGger:MAIn:COMMunic tion:CMI:PULSEForm { PLUSOne | MINUSOne |
EYEdi gr m | ZERO }
TRIGger:MAIn:COMMunic tion:CMI:PULSEForm?
TRIGger : :
MAIn :
<Sp ce>
?
MINUSOne
COMMunic tion
CMI
EYEdi gr m
:PULSEForm
PLUSOne
ZERO
PLUSOne corresponds to triggering on a positive mark. This is the default value.
MINUSOne corresponds to triggering on a negative mark.
EYEdi gr m selects an Eye Diagram image.
ZERO corresponds to triggering on a Zero bit.
TRIGGER:MAIN:COMM:CMI:PULSEFORM PLUSONE
selects a trigger on a positive mark.
TRIGger:MAIn:COMMunication:STANdard
TDS 500C & 700C Only
Sets or queries the communication trigger standard which identifies the code and
bit rate.
Trigger
TRIGger:MAIn:COMMunic tion:STANd rd { DS1 | DS1A | DS1C | DS2 |
DS3 | DS4NA | E1 | E2 | E3 | E4 | E5 | STS1 | STS3 | OC1 | OC3 |
OC12 | STM1E | FC133 | FC266 | FC531 | FC1063 | FDDI | D1 | D2 |
ENET1250 | ENET10 | ENET100 | DS3R te | VIDEO360 | CUSTom }
TRIGger:MAIn:COMMunic tion:STANd rd?
Syntax
Arguments
Examples
Group
Syntax

Version 5.2 Firmware
TDS 500C, TDS 600B & TDS 700C Supplement 15
TRIGger : :
MAIn :
<Space>
D1
?
D2
FDDI
STANdard
COMMun cat on
FC1063
FC531
FC266
FC133
STM1E
OC12
OC3
OC1
STS3
STS1
E5
E4
E3
E2
E1
DS4NA
DS3
DS2
DS1C
DS1A
DS1
ENET1250
ENET10
ENET100
DS3Rate
VIDEO360
CUSTomCUSTom
DS1 refers to DS1 (1.544 Mb/s) AMI standard.
DS1A refers to DS1A (2.048 Mb/s) AMI standard.
Arguments

Version 5.2 Firmware
16 TDS 500C, TDS 600B & TDS 700C Supplement
 refers to DS1C (3.152 Mb/s) AMI standard.
 refers to DS2 (6.312 Mb/s) AMI standard.
 refers to DS3 (44.736 Mb/s) AMI standard.
 refers to DS4NA (139.26 Mb/s) CMI standard.
 refers to E1 (2.048 Mb/s) AMI standard.
 refers to E2 (8.44 Mb/s) AMI standard.
 refers to E3 (34.368 Mb/s) AMI standard.
 refers to E4 (139.26 Mb/s) CMI standard.
 refers to E5 or CEPT (565 Mb/s) NRZ standard.
 refers to STS–1 (51.84 Mb/s) AMI standard.
 refers to STS–3 (155.52 Mb/s) CMI standard.
 refers to OC1/STM0 (51.84 Mb/s) CMI standard.
 refers to OC3/STM1 (155.52 Mb/s) NRZ standard.
 refers to OC12/STM4 (622.08 Mb/s) NRZ standard.
 refers to STM1E (155.52 Mb/s) CMI standard.
 refers to FC133 (132.7 Mb/s) NRZ standard.
 refers to FC266 (265.6 Mb/s) NRZ standard.
 refers to FC531 (531.2 Mb/s) NRZ standard.
 refers to FC1063 (1.063 Gb/s) NRZ standard.
 refers to FDDI (125 Mb/s) NRZ standard.
 refers to 4:2:2 or D1 (270 Mb/s) NRZ standard.
 refers to 4fsc NTSC or D2 (143.18 Mb/s) NRZ standard.
 refers to the IEEE Draft P802.3z/D3 (1.25 Gb/s) standard.
 refers to the ANSI/IEEE 802.3 Fifth Edition 1996 – Information
Technology – Telecommunications and Information Exchange (10 Mb/s)
standard.
 refers to the ANSI X3.263-1995 for Information Technology
(125 Mb/s) standard.
 refers to the ITU G.703 standard (44.736 Mb/s).

Version 5.2 Firmware
TDS 500C, TDS 600B & TDS 700C Supplement 17
VIDEO360 refers to the ANSI/SMPTE 259M 4:2:2 component serial video
(360 Mb/s) standard.
CUSTom can take a non-standard, floating-point bit rate. <NR3>.
TRIGGER:MAIN:COMM:STANDARD E4
selects the E4 communication standard.
MASK:AUTOSet:STANdard
TDS 500C & 700C Only
Selects a standard mask for autoset. You can modify a standard and still force the
oscilloscope to autoset to the standard.
Mask
MASK:AUTOSet:STANdard { OC1 | OC3 | OC12 | DS0Single | DS0Double
| DS0Contra | DS0Timing | DS1Rate | E1Symmetri al | E1Coax | E2 |
E3 | DS3Rate | E4_0 | E4_1 | E5 | STM1E_0 |STM1E_1 | DS1 | DS1A |
DS1C | DS2 | DS3 | DS3Time | DS4NA |DS4NA_Max | STS1Eye |
STS1Pulse | STS3 | STS3_Max | FC133 | FC266 | FC531 | FC1063 |
FC133E | FC266E | FC531E | FC1063E | D2 | D1 | VIDEO360 |
ENET1250 | ENET100UTP | ENET100STP | ENET10IDTime | ENET10IDVolt
| ENET10IDFull |ENET10LKTime | ENET10LKVolt | ENET10LKFull | FDDI
| NONe | USERMask }
MASK:AUTOSet:STANdard?
Examples
Group
Syntax

Version 5.2 Firmware
18 TDS 500C, TDS 600B & TDS 700C Supplement
:
MASK
<Spa e>
FDDI
?
NONe
D1
STANdard
D2
FC1063E
FC531E
FC266E
FC133E
FC1063
FC531
STS3_Max
STS3
STS1Eye
MS4NA
DS3
DS2
DS1C
DS1A
DS1
STM1E_1
STM1E_0
USERMask
OC1
OC3
OC12
E1Coax
E2
E3
E4_0
E4_1
E5
DS4NA_Max
DS0TimingDS0Timing
DS0Contra
DS0Double
DS0Single
E1Symmetri al
STS1Pulse
DS1Rate
DS3Rate
DS3Time
VIDEO360
ENET1250
ENET100UTP
ENET100STP
ENET10IDTime
ENET10IDVolt
ENET10IDFull
ENET10LKTime
ENET10LKVolt
ENET10LKFull
:AUTOSET
OC1 selects the mask specified by the OC1/STM0 standard (51.84 Mb/s).
OC3 selects the mask specified by the OC3/STM1 standard (155.52 Mb/s).
OC12 selects the mask specified by OC12/STM4 standard (622.08 Mb/s).
Arguments