PowerTek PA2553 User manual

Powertek
USER'S GUIDE
PA2553/
PA2553E
Three-Phase
Power Analyser

Warranty 3
Warranty
The Powertek instrument is warranted against defects in material and
workmanship for a period of two years after the date of purchase. Powertek agrees to
repair or replace any assembly or component (except batteries) found to be defective,
under normal use, during the warranty period. Powertek obligation under this warranty
is limited solely to repairing any such instrument which in Powertek sole opinion
proves to be defective within the scope of the warranty, when returned to the factory or
to an authorized service center. Transportation to the factory or service center is to be
prepaid by the purchaser. Shipment should not be made without prior authorization by
Powertek.
The warranty does not apply to any products repaired or altered by persons not authorized
by Powertek, or not in accordance with instructions provided by Powertek. If the
instrument is defective as a result of misuse, improper repair, or abnormal conditions
or operations, repairs will be billed at cost.
Powertek assumes no responsibility for its product being used in a hazardous or
dangerous manner, either alone or in conjunction with other equipment. Special
disclaimers apply to this instrument. Powertek assumes no liability for secondary
charges or consequential damages, and, in any event, Powertek' liability for breach of
warranty under any contract or otherwise, shall not exceed the original purchase price
of the specific instrument shipped and against which a claim is made.
Any recommendations made by Powertek or its Representatives, for use of its products
are based upon tests believed to be reliable, but Powertek makes no warranties of the
results to be obtained. This warranty is in lieu of all other warranties, expressed or
implied, and no representative or person is authorized to represent or assume for Powertek
any liability in connection with the sale of our products other than set forth herein.
Instrument Serial Number: __________________________________

4PA2553 User's Guide
Document Part Number: MO-PA2553-M
Revision C Print date: February 21, 2000
Copyright
Copyright1999 Powertek All rights reserved.
All rights reserved. No part of this publication may be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated into any language in any form
without prior written consent from Powertek. This product manual is copyrighted and
contains proprietary information, which is subject to change without notice. The
product's displays and manual text may be used or copied only in accordance with the
terms of the license agreement.
In the interest of continued product development, Powertek. reserves the right to make
changes in this guide and the product it describes at any time, without notice or
obligation.
Powertek
Powertek UK
19 Cornwallis Rd.
Bilton, Rugby CV22 7HL UK
Tel: [phone]
E-mail: [email protected]
Powertek US Inc.
7 Third St.
Holbrook, NY 11741 USA
Tel: [phone]
E-mail: [email protected]
ISO-9001: 1994
Cert. No. CA 23-98-01
RvC
Accredited by the RvA

Contents 5
Contents
INTRODUCTION_______________________________________________ 11
Scope ______________________________________________________ 11
Features____________________________________________________ 12
FUNCTIONAL DESCRIPTION____________________________________ 13
Theory of Operation__________________________________________ 13
Interfaces___________________________________________________ 15
Front Panel_______________________________________________ 15
Parallel Printer____________________________________________ 15
IEEE488 ________________________________________________ 16
USING THE POWER ANALYSER _________________________________ 17
Setting Up __________________________________________________ 17
Front Panel _________________________________________________ 18
Rear Panel Connections _______________________________________ 19
Starting the Power Analyser____________________________________ 20
Configuring the Power Analyser ________________________________ 20
Measurement Connections _____________________________________ 24
Using Internal Current Transducers ____________________________ 24
Internal Transducer Connections for Test_________________________ 25
Using External Current Transducers____________________________ 27
External Transducer Connections for Test ________________________ 28
SEQUENCE OF DISPLAY SCREENS_______________________________ 29
Using the Diagrams ___________________________________________ 29
Diagrams ___________________________________________________ 30

6PA2553 User's Guide
VIEWING RESULTS ____________________________________________ 35
Display Screens ______________________________________________ 35
Basics Group _____________________________________________ 36
Harmonics Group__________________________________________ 41
Waveforms Group _________________________________________ 44
History Group ____________________________________________ 46
PRINTING RESULTS____________________________________________ 51
Sample Printouts_____________________________________________ 51
CALIBRATION_________________________________________________ 65
Removing DC Current Offsets __________________________________ 65
Calibrating the Power Analyser_________________________________ 67
Calibration Procedures________________________________________ 67
Voltage Calibration ________________________________________ 69
Current Calibration ________________________________________ 72
Calibration Faults____________________________________________ 75
APPENDIX A - PHYSICAL SPECIFICATIONS ______________________ 77
Temperature & Humidity____________________________________ 77
Size & Weight ____________________________________________ 77
Power Input______________________________________________ 77
APPENDIX B - MEASUREMENT SPECIFICATIONS _________________ 79
Power Source Capabilities (Option E only)_______________________ 79
Input Signal Capabilities ____________________________________ 79
Input Burden _____________________________________________ 80
Measurement Accuracy _____________________________________ 80

Figures 7
Figures
Figure 1. Bench Type Power Analyser ________________________________ 17
Figure 2. Front Panel detail_________________________________________ 18
Figure 3. Rear Panel detail _________________________________________ 19
Figure 4. Startup screen ___________________________________________ 20
Figure 5. Setup Index screen with INTERFACES/DATE/TIME selected_______ 20
Figure 6. The Interface Setup screen__________________________________ 21
Figure 7. Setup Index screen with MEASUREMENTS & WIRING selected____ 21
Figure 8. The Measurements & Wiring Setup screen______________________ 22
Figure 9. Setup Index screen with CURRENT INPUTS selected_____________ 22
Figure 10. The Current Input Setup screen _____________________________ 23
Figure 11. Setup Index screen with PRODUCT OPTIONS FITTED selected ___ 24
Figure 12. The Product Options Fitted screen ___________________________ 24
Figure 13. 1φ2-Wire Connections diagram ____________________________ 25
Figure 14. 1φ3-Wire Connections diagram ____________________________ 25
Figure 15. 3φ3-Wire Connections diagram ____________________________ 26
Figure 16. 3φ4-Wire Connections diagram ____________________________ 27
Figure 17. Front Panel with Basics sample display _______________________ 29
Figure 18. Basic ∑RMS sample display _______________________________ 30
Figure 19. Harmonics Bargraph and List sample display___________________ 31
Figure 20. Waveforms V&W CONT φABC sample display ________________ 32
Figure 21. History WATTS φA sample display__________________________ 33
Figure 22. Basics ∑RMS MEAS φA display with callouts__________________ 36
Figure 23. Basics ∑RMS MEAS ∑φABC display ________________________ 36

8PA2553 User's Guide
Figure 24. Basics ∑RMS INRUSH φA display __________________________ 36
Figure 25. Basics ∑RMS INRUSH ∑φABC display ______________________ 37
Figure 26. Basics ∑RMS INTEGRATED φA display with callouts___________ 37
Figure 27. Basics ∑RMS INTEGRATED ∑φABC display _________________ 37
Figure 28. Basics ∑RMS INTEGR AVG φA display______________________ 37
Figure 29. Basics ∑RMS INTEG AVG ∑φABC display ___________________ 38
Figure 30. Basics DC MEAS φA display_______________________________ 38
Figure 31. Basics DC MEAS ∑φABC display___________________________ 38
Figure 32. Basics DC INRUSH φA display_____________________________ 38
Figure 33. Basics DC INRUSH ∑φABC display _________________________ 39
Figure 34. Basics DC INTEGRATED φA display________________________ 39
Figure 35. Basics DC INTEGRATED ∑φABC display ____________________ 39
Figure 36. Basics DC INTEG AVG φA display__________________________ 39
Figure 37. Basics DC INTEG AVG ∑φABC display______________________ 39
Figure 38. Basics FUND φA display with callouts________________________ 40
Figure 39. Basics FUND ∑φABC display ______________________________ 40
Figure 40. Basics ∑HARMS φA display with callouts_____________________ 40
Figure 41. Basics ∑HARMS ∑φABC display ___________________________ 41
Figure 42. Harmonics Bargraph φA, VOLTS % Log display________________ 41
Figure 43. Harmonics φA VOLTS ABS Lin display ______________________ 41
Figure 44. Harmonics Bargraph φA, VOLTS ABS Log display______________ 42
Figure 45. Harmonics Bargraph φA, VOLTS % Lin display ________________ 42
Figure 46. Harmonics Bargraph φA, AMPS % Log display_________________ 42
Figure 47. Harmonics Bargraph φA, AMPS ABS Lin display _______________ 42
Figure 48. Harmonics Bargraph φA, AMPS ABS Log display_______________ 42
Figure 49. Harmonics Bargraph φA, AMPS % Lin display _________________ 43
Figure 50. Harmonics List φA, ABSOLUTE display______________________ 43
Figure 51. Harmonics List φA, PERCENTAGE display ___________________ 43
Figure 52. Harmonics List φA, PHASE display__________________________ 44
Figure 53. Harmonics List φB, PHASE display__________________________ 44

Figures 9
Figure 54. Waveforms V&A CONT φA display with callouts _______________ 44
Figure 55. Waveforms V&A CONT φB display _________________________ 45
Figure 56. Waveforms V&A CONT φC display _________________________ 45
Figure 57. Waveforms V&A CONT ∑φABC display _____________________ 45
Figure 58. Waveforms V&W CONT φA display_________________________ 45
Figure 59. Waveforms V&W CONT ∑φABC display _____________________ 45
Figure 60. History VOLTS φA RMS display with callouts _________________ 46
Figure 61. History VOLTS ∑φABC RMS display________________________ 46
Figure 62. History VOLTS φA PEAK display___________________________ 46
Figure 63. History VOLTS ∑φABC PEAK display_______________________ 46
Figure 64. History VOLTS φA THD display____________________________ 47
Figure 65. History VOLTS ∑φABC THD display________________________ 47
Figure 66. History AMPS φA RMS display_____________________________ 47
Figure 67. History AMPS ∑φABC RMS display_________________________ 47
Figure 68. History AMPS φA PEAK display____________________________ 47
Figure 69. History AMPS ∑φABC PEAK display________________________ 48
Figure 70. History AMPS φA THD display_____________________________ 48
Figure 71. History AMPS ∑φABC THD display_________________________ 48
Figure 72. History WATTS φA display________________________________ 48
Figure 73. History WATTS ∑φABC display____________________________ 48
Figure 74. History VAR φA display __________________________________ 49
Figure 75. History VAR ∑φABC display ______________________________ 49
Figure 76. History PF φA display ____________________________________ 49
Figure 77. History PF ∑φABC display ________________________________ 49
Figure 78. Phase A Basic Measurement printout_________________________ 53
Figure 79. Total Basic Measurements printout __________________________ 54
Figure 80. Phase A Current Harmonics Barchart graphic printout_____________ 55
Figure 81. Phase A Current Harmonics Barchart nongraphic printout__________ 56
Figure 82. Phase B Harmonics Data List printout_________________________ 57
Figure 83. Phase A Waveforms graphic printout_________________________ 58

10 PA2553 User's Guide
Figure 84. Phase A Volts and Current Waveforms nongraphic printout________ 59
Figure 85. Phase B Waveforms graphic printout _________________________ 60
Figure 86. Waveforms Volts, Amps, Power graphic printout________________ 61
Figure 87. Phase A Current Level History graphic printout _________________ 62
Figure 88. Phase A Current Level History nongraphic printout ______________ 63
Figure 89. Setup Index screen with Current Inputs selected_________________ 65
Figure 90. Input Selection selected ___________________________________ 66
Figure 91. Calibration selected ______________________________________ 66
Figure 92. DC Zero Date selected____________________________________ 66
Figure 93. Calibration selected ______________________________________ 68
Figure 94. Calibration Date selected __________________________________ 68
Figure 95. Open Circuit Point _______________________________________ 68
Figure 96. Open Circuit Point Zero Readings ___________________________ 69
Figure 97. Voltage Point initial display ________________________________ 69
Figure 98. Internal Voltage Point display ______________________________ 70
Figure 99. External Voltage Point Phase A _____________________________ 70
Figure 100. External Voltage Point Phase B ____________________________ 71
Figure 101. External Voltage Point Phase C ____________________________ 71
Figure 102. Internal Current Cal Point display___________________________ 72
Figure 103. Load "A" Current Cal Point display _________________________ 72
Figure 104. Load "B" Current Cal Point display _________________________ 73
Figure 105. Load "C" Current Cal Point display _________________________ 73
Figure 106. Internal Current Calibration Completion display________________ 74
Figure 107. External Transducer A Current Cal Point display _______________ 74
Figure 108. External Transducer B Current Cal Point display _______________ 74
Figure 109. External Transducer C Current Cal Point display _______________ 75

Introduction 11
Introduction
Scope
The purpose of this user guide is to describe the use and capabilities of the PA2553 and
PA2553E (External Current) Three-Phase Power Analyser.
The three-phase PA2553 is an easy-to-use, general purpose power analyser, which may
be configured for 1φ2-wire, 1φ3-wire, 3φ3-wire or 3φ4-wire power sources and loads.
Overall, the PA2553 analyzes the electrical power delivered to or by a device. The unit
can be quickly set up on your bench top. You can adjust the viewing angle using the
handle and adjust the contrast from the configuration screen.
The PA2553 Option E provides support for external current transducers of the
current:current or current:voltage type. This option also provides terminals at the rear
panel allowing the user to power external circuitry from the PA2553’s internal DC power
supplies (positive and negative 15V).
Both the PA2553 and PA2553E analysers display voltage, current and wattage "results"
in numeric and graphic waveform formats. Results include voltage, current, wattage and
harmonic frequencies in absolute, percentage and phase. You may display the
fundamental in a bargraph format through the 40th harmonic or in a listing format through
the 50th harmonic. You may examine power waveforms graphically and chart historical
results in divisions of time from seconds to days. Additional screens display voltage and
current peaks, harmonics, averages and reactive power with K-factor and crest factor of
the voltage or current signal.
All of the data that can be displayed on the PA2553/PA2553E screens can be printed in
full-page printout formats. Refer toPrinting Results page 51. Note that both bargraph
and listing fundamental printouts contain the 2nd through the 50th harmonics.

12 PA2553 User's Guide
Features
The PA2553/PA2553E Power Analysers’ features include the following—
•Simple interface.
•Display basic measurements of ?RMS, DC, Fundamental (harmonic), and
?Harmonics for any single phase or the total of all phases.
•Display harmonics in bargraph or a list format.
•Continuously updated displays of voltage, current and wattage waveforms.
•Display historic results for voltage and current, watts, reactive power and power
factor, for each of the three phases and the total, simultaneously.
•Allowance for scaling of all current readings by a numerical factor.
•Provide adjustable display contrast.

Functional Description 13
Functional Description
This chapter describes the circuitry and interfaces of the PA2553/PA2553E.
Theory of Operation
The PA2553/PA2553E is high performance test equipment. Within the analyser, voltage
and current signals are converted to digital data using DSP chips where the signals are
sampled automatically and periodically. A to D converters scale and sample data. The
data-analysis components analyze voltage and current input samples for harmonic
content.
The following is a list of the significant components and a description of their function
within the analyser.
Voltage Attenuators—Resistively attenuate the voltages present on the SOURCE A, B,
C and N terminals to a 2.5V peak-amplitude maximum voltage signal.
Hall Effect Transducer—Converts the current flowing from each phase SOURCE to
LOAD into isolated voltages of the PA2553.
Analog Anti-Alias Filters—Reduce the bandwidth of the signals applied to the inputs of
the ADCs to less than the sampling frequency.
Each of the attenuator outputs and the outputs of the Hall Effect transducers are
passed through identical analog anti-alias filters.
16-Bit A to D converters (ADC) and First In/First Out memory (FIFO)—
The ADCs digitize each signal with 16-bit resolution at the DSP generated
Sample Clock frequency. The FIFOs store each digital sample in memory to be
read by the DSP in blocks of 32 samples per converter.
80 MIPs Digital Signal Processor (DSP)—Processes the tasks required to compute the
multiple voltage, current, and power results. Also processes the tasks required to
format the results for display, printout and interrogation via the IEEE488
interface. Computed results are independent of the selected display and
IEEE488 interface requirements.

14 PA2553 User's Guide
The DSP generates a Sample-Clock signal from the computed frequency of the
user-selected synchronization source. The Sample-Clock signal clocks the
ADCs at a suitable frequency to ensure exact synchronization of the overall
measurements to the applied signals. The sampling frequency may be up to
170KHz and is slightly "dithered" to ensure that individual samples cannot be at
the exact same phase of the applied signals, while maintaining exact
synchronization for the overall measurement period.
The samples read from the FIFOs are passed through one to three stages of 6-
pole elliptical filters. (The stage of filtering is dependent on user-selected
configuration and bandwidth of harmonics measurements.) The first stage
filters the samples for all nonharmonic measurements. The second stage is anti-
alias filtering of the samples for the DFT and waveform collection. The third
stage filters the samples for waveform period measurements to display the
synchronized results.
All measurements are made nominally over four cycles of the applied signal and
then two-pole filtered with a user-selected "averaging" filter to produce fast, yet
stable, measurement results. (Note that there are more cycles at very high
frequencies and less at very low frequencies.)
Historical results are maintained by the DSP from the unfiltered measurement
results. Harmonics results, both amplitude and phase, are computed by the DSP
by means of a variable length Discrete Fourier Transform (DFT). Nominally
400 equally spaced samples per cycle are also collected for waveform display
purposes.
At nominal line frequencies and below, all measurements are continuous, there
being no missed portions of the signal in any of the resultant measurements. At
very high frequencies "gaps" can only result in the harmonics measurements.
The DSP also contains 4Kx24 of internal RAM for working memory, 3Kx24 of
program memory and a 1Kx24 level 1 cache memory.
The DSP can perform one arithmetic and two data movements per 12.5ns,
yielding 80MIPs for arithmetic operations and 240MIPs overall capability.
IEEE488 Interface—Performs the majority of the bus interface details for the IEEE488
protocol. All IEEE-448 interfacing is with data output from the DSP, or data
and commands input to the DSP. This interface is controlled using a
commercially available IC (National Instruments TNT488).
Parallel Printer Interface—This IC performs the majority of the bus interface details
for the parallel printer protocol. The data to be output over the interface comes
from the DSP. This interface is controlled using a commercially available IC.
Graphical Display Module—Allows a visual reading of the results in alphanumeric
and/or graphical format. The display screen is a commercially available LCD
with 240x64 pixels and a CCD backlight. All graphical information for the
screens is generated by the DSP.

Functional Description 15
Keyboard—Allows for changing and bringing up the various displays of results. The
keyboard is formed by six key switches, each individually readable by the DSP.
All actions taken as a result of a key being pressed are generated by the DSP.
Real Time Clock (RTC) and Non-Volatile Memory (NVRAM)—Generates the date
and time of day information, and also stores the user display configuration, the
IEEE488 address, and the calibration data for each input. Both clock and
memory are within a single commercially available IC.
Random Access Memory (RAM)—A total of 256Kx24, 15ns access time memory is
available to the DSP to store all "working" information, all computed results,
formatted printout data and display pixels. This memory also contains the
software program for the DSP, copied from the Flash Memory.
Flash Program Memory—This memory is rewritable "Flash" memory used for DSP
program storage. The program is copied into RAM following application of
power and is CRC checked for integrity. After being copied into RAM, the
flash memory is not used during normal operation.
Interfaces
Note: Specifications are subject to change without notice.
Front Panel
Liquid Crystal Display—
240 x 64 High-Speed Graphics LCD with CCD Backlight (5" x 1.35" viewing
area)
Keyboard—
Two fixed purpose keys + four softkeys
Parallel Printer
Printer Interface—
Parallel IEEE1284
Format—
Unformatted text or PCL (user selectable)
Data Rate—
Up to 1000 characters per second (limited by printer)
Compatible Printers—
Text: any 80 character wide (or more) by 66 character long (or more) ASCII
parallel text printer
PCL: Hewlett-Packard DeskJet family, Hewlett-Packard LaserJet family, other
PCL level two (or higher) compatible parallel printer with 75dpi or greater raster
graphics print resolution

16 PA2553 User's Guide
IEEE488
Interface—
IEEE488.1 (Certain commands conform to IEEE488.2)
Addressing—
Single address, user selectable via front panel between 0 and 29 inclusive
Capabilities—
SH1 AH1 T6 L4 SR1 RL1 PP0 DC1 DT1 C0 E2 (350ns min. T1)
Max. Talk Data Rate—
>200,000 bytes per second
Max. Listen Data Rate—
>50,000 bytes per second
Command Set—
All front panel capabilities are provided via ASCII textual command sequences.
Results—
Any results may be obtained at any time from the interface as ASCII textual
numerical data. Additionally, status and state interrogatives are provided for "on
the fly" determination of product status.

Using the Power Analyser 17
Using the Power Analyser
The purpose of this chapter is to describe how to set up and use the PA2553/
PA2553E. This chapter covers—
•Setting Up
•Using the Front Panel Buttons
•Rear Panel Connections
•Power Testing
Setting Up
The Power Analyser is made to sit on your bench. You can optimize the viewing angle by
adjusting the handle and optimize the viewing brightness by adjusting the DISPLAY
CONTRAST. (See Configuring the Power Analyser page 20.)
Figure 1. Bench Type Power Analyser
♦To adjust the handle—
1. Press and hold the buttons located where the handle attaches to the case sides.
2. Rotate the handle until it clicks into place.

18 PA2553 User's Guide
WARNING: IF THE POWER ANALYSER IS USED IN A MANNER NOT SPECIFIED BY
Powertek, THE PROTECTION PROVIDED BY THE EQUIPMENT MAY BE IMPAIRED.
Front Panel
The front panel on the PA2553 and PA2553E includes a LCD display screen, power
switch and buttons. The buttons are from left to right: NEXT, F1, F2, F3, F4 and PRINT.
See below.
NEXT PRINT
PA2553
P OWER A NALYSER
ON
OFF
Powertek
F1
F2
F3
F4
LCD display
Figure 2. Front Panel detail
The screen shows the power measurement results numerically and graphically. Refer to
Viewing Results, page 35.
The ON/OFF button powers the PA2553/PA2553E on or off.
The NEXT button allows you to toggle through the five main display groups. Refer to
Sequence of Display Screens, page 29.
The F1 through F4 buttons (functional softkeys) allow you to select menu choices. For
more information refer to Viewing Results, page 35.
The PRINT button allows you to print a full page of data reflecting the display results.
Printouts are formatted either graphically or tabulated. (Refer toPrinting Results page
51.)
Power switch NEXT
PRINT
!

Using the Power Analyser 19
Rear Panel Connections
The PA2553 and PA2553E rear panels provide connectors for a power cord, parallel
printer cable and computer interface cable. The PA2553E additionally provides three
external current (bnc) connectors and three transducer voltage plugs.
See below.
Figure 3. Rear Panel detail
♦To power the PA2553/PA2553E—
•Insert the socket end of the power cord into the rear panel’s 3-prong connector. Insert
the plug end into an 85-250 volt AC, 47 - 63 Hz outlet.
WARNING: SHOCK HAZARD. LETHAL VOLTAGES OR CURRENT MAY BE PRESENT.
ENSURE NO VOLTAGE OR CURRENT EXISTS ON THESE CONNECTIONS PRIOR TO
ATTEMPTING TO CONNECT TO THESE INPUT TERMINALS.
♦To connect a printer to the PA2553/PA2553E—
•For printer interface, connect one end of your printer's cable to the PARALLEL
PRINTER port and the other to the printer.
♦To connect a PC to the PA2553/PA2553E—
1. Attach the computer's IEEE488 cable connector to the 24-pin socket marked IEEE
on the rear panel.
2. On the front panel, press the NEXT button until you see theSetup Indexdisplay.
3. Press CURSOR until INTERFACES/DATE/TIME is highlighted.
4. Press the SETUP button. The screen changes to show the Interface Setup Index
display.
5. Press CURSOR until the IEEE ADDRESS option is selected.
6. Press the CHANGE button until the appropriate address number displays.
7. Press DONE.
!
!
Available on PA2553E only

20 PA2553 User's Guide
Starting the Power Analyser
♦To start the PA2553/PA2553E, click the ON/OFF button to the ON position.
A startup screen will display for a few seconds. This screen lists the model number,
current and voltage input options, software revision number, and firmware installation
date and time.
Figure 4. Startup screen
Note: If your unit is not calibrated, a WARNING statement will display along the top
of the Startup screen stating either: “ UNCALIBRATED INSTRUMENT” or
“CALIBRATION DATA HAS BEEN LOST.”
The next display you will see is the same screen that displayed when the analyser was last
turned off.
Configuring the Power Analyser
The Setup Indexscreen gives you access to separate interface configuration screens.
There is a screen for Interfaces/Date/Time; Measurements; Current Input (selection and
scaling); Calibration and one to view Product Options. Refer toFigure 5, Figure 7,
Figure 9, and Figure 11.
♦To reconfigure the power analyser —
1. Press the NEXT button until you see the mainSetup Index screen display, as shown
below.
Figure 5. Setup Index screen with INTERFACES/DATE/TIME selected
2. Press the CURSOR button to highlight the configuration item of choice and press
SETUP. The screen will change to display the selected item’s configuration screen.