Anritsu MS2720T User Manual

User Guide

Spectrum Master™

MS2720T

High Performance Handheld Spectrum Analyzer

Appendix A provides a list of supplemental documentation for the

Spectrum Master features and options. The documentation set is available as PDF files on www.anritsu.com.

Anritsu Company 490 Jarvis Drive Morgan Hill, CA 95037-2809 USA

http://www.anritsu.com

Part Number: 10580-00340

Published: December 2018

Revision: M

Chapter 1—General Information

1-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Additional Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Contacting Anritsu for Sales and Service . . . . . . . . . . . . . . . . . . . . . . . 1-2

1-2 Instrument Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Available Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Available Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1-3 Calibration and Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1-4 Instrument Care and Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . 1-5

Connector Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

ESD Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

RF Input Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Chapter 2—Instrument Overview

2-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2-2 Turning On the Spectrum Master . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2-3 Instrument Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Front Panel Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

2-4 Connector Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

2-5 Interface Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Touch Screen Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Symbols and Icons on the Title Bar . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Symbols and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Display Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Touch Screen Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

2-6 Data Entry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Numeric Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Selection Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Text Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

2-7 Mode Selector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

2-8 Soft Carrying Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

2-9 Tilt Bail Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

MS2720T UG PN: 10580-00340 Rev. M Contents-1

Table of Contents (Continued)

Chapter 3—Initial Startup

3-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3-2 Measurement Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Connect the Input Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Editing and Entering Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Selecting the Analyzer Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

3-3 Set the Measurement Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Using Start and Stop Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Entering Center Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Selecting Signal Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Setting Measurement Frequency Bandwidth . . . . . . . . . . . . . . . . . . . 3-3

3-4 Set the Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Setting Amplitude Reference Level and Scale . . . . . . . . . . . . . . . . . . . 3-4

Setting Amplitude Range and Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Reference Level Offset for External Loss or External Gain . . . . . . . . . . 3-5

3-5 Set the Span . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

3-6 Setting Up Limit Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Simple Limit Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Limit Line Envelope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Complex Limit Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

3-7 Setting Up Markers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

3-8 Selecting a Measurement Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

3-9 Saving Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

3-10 Software Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

3-11 External Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Chapter 4—File Management

4-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4-2 Managing Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

File Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Save Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Recall Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Copy Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Delete Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

4-3 File Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

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Table of Contents (Continued)

4-4 File Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Save Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

File Type Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Save Location Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Save On... Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Recall Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Copy Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Delete Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Chapter 5—System Operation

5-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5-2 System Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5-3 System Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

System Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

System Options 2/2 Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Power-On Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Display Settings Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

Brightness Settings Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Reset Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

5-4 Preset Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

5-5 Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

5-6 Updating the Spectrum Master Firmware . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Chapter 6—GPS (Option 31)

6-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6-2 Activating the GPS Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6-3 Resetting GPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

6-4 Saving and Recalling Traces with GPS Information . . . . . . . . . . . . . . . . . . 6-3

Saving Traces with GPS Information. . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Recalling GPS Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

6-5 GPS Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Chapter 7—Anritsu Tool Box

7-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7-2 Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7-3 Anritsu Software Tool Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7-4 Software Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Master Software Tools (MST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

easyTest Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

easyMap Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Wireless Remote Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

MS2720T UG PN: 10580-00340 Rev. M Contents-3

Table of Contents (Continued)

Chapter 8—Web Remote Control

8-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

8-2 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

LAN Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Connection to a Wi-Fi Portable Router . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

8-3 Web Remote Control Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

User Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

Home Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

Capture Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

Capture Trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

File List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8

Device Management (not as Administrator) . . . . . . . . . . . . . . . . . . . . . 8-8

Device Management (Administrator) . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

Logout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12

Appendix A—Related Documents

A-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Appendix B—Secure-Environment Workplace

B-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1

B-2 Option 7, Secure Data Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1

Frequency Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

B-3 Remote Access Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

B-4 Spectrum Master Memory Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-2

B-5 Erase All User Files in Internal Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

B-6 Recommended Usage in a Secure Environment . . . . . . . . . . . . . . . . . . . . B-3

Appendix C—Error Messages

C-1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1

C-2 Self Test or Application Self Test Error Messages . . . . . . . . . . . . . . . . . .C-1

C-3 Operation Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2

Appendix D—LAN and DHCP

D-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-1

D-2 LAN Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

D-3 Ethernet Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-1

Ethernet Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-2

DHCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-4

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Table of Contents (Continued)

D-4 ipconfig Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-5

D-5 Ping Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-6

Appendix E—Glossary of Terms

E-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1

E-2 Glossary of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1

Index

MS2720T UG PN: 10580-00340 Rev. M Contents-5

Table of Contents (Continued)

Contents-6 PN: 10580-00340 Rev. M MS2720T UG

Chapter 1 — General Information

1-1 Introduction

The Spectrum Master User Guide is part of a set of manuals that cover all of the instrument functions and their use. This manual covers the instrument overview, system functions, and other common features, along with a brief guide to basic measurement concepts and setups. Most instrument operations and modes are covered in specific measurement guides as listed below.

Additional Documentation

Document Part Number Description (Required Option)

10100-00065 Important Product Information, Compliance, and Safety Notices

Spectrum Analyzer Measurement Guide Spectrum Analyzer (Option 709, 713, 720, 732, or 743) IQ Waveform Capture (Option 24) Interference Analyzer (Option 25)

10580-00349

10580-00234

10580-00235

10580-00236

10580-00240

10580-00339

10580-00341 SCPI Programming Manual 10580-00455 EMF Measurement Guide (Option 444) 11410-00646 Spectrum Master MS2720T Technical Data Sheet

Channel Scanner (Option 27) Zero-Span IF Output (Option 89) Gated Sweep (Option 90) Coverage Mapping (Option 431) EMF Measurements (Option 444) AM/FM/PM Analyzer (Option 509)

3GPP Signal Analyzer Measurement Guide GSM/GPRS/EDGE Measurements (Option 880) W-CDMA/HSPA+ Measurements (Option 881) TD-SCDMA/HSPA+ Measurements (Option 882) LTE/LTE-A FDD/TDD Measurements (Option 883) LTE 256 QAM Demodulation Measurement (Option 886) NB-IoT Measurements (Option 887)

3GPP2 Signal Analyzer Measurement Guide CDMA/EV-DO Measurements (Option 884)

WiMAX Signal Analyzer Measurement Guide WiMAX Fixed/Mobile Measurements (Option 885)

Power Meter Measurement Guide High Accuracy Power Meter (Option 19)

Tracking Generator Measurement Guide Tracking Generator (Option 809, 813, or 820)

MS2720T UG PN: 10580-00340 Rev. M 1-1

1-2 Instrument Description General Information

Read the Handheld Instruments Product Information, Compliance, and Safety Guide (PN: 10100-00065) for important safety, legal, and regulatory notices before operating the equipment. For additional information and literature covering your product, visit the product page of your instrument and select the Library tab:

http://www.anritsu.com/en-US/test-measurement/products/ms2720t

Contacting Anritsu for Sales and Service

To contact Anritsu, visit the following URL and select the services in your region:

http://www.anritsu.com/contact-us

1-2 Instrument Description

The Spectrum Master is a synthesizer-based handheld spectrum analyzer that provides quick and accurate measurement results. The instrument is designed for monitoring, measuring, and analyzing signal environments. Measurements can easily be made by using the main instrument functions: frequency, span, amplitude, and bandwidth. Dedicated keys for common functions and a familiar calculator-type keypad are available for fast data entry.

Typical measurements include: in-band interference and transmit spectrum analysis, plus cell site and 802.11a/b/g interference testing. Options are available for RF, advanced demodulation, and over-the-air (OTA) measurement. A full range of marker capabilities (such as peak, center, and delta functions) are provided for faster, more comprehensive analysis of displayed signals. Upper and lower multi-segmented limit lines are available to create quick, simple pass/fail measurements. A menu option provides for an audible alert when a limit value is exceeded.

The bright daylight-viewable, high-resolution, color liquid crystal display (LCD) provides easy viewing in a variety of lighting conditions. The Spectrum Master is capable of up to 3 hours of continuous operation from a fully charged battery and can be operated from a 12 VDC source, which simultaneously charges the battery.

The combination of a touch screen and keypad enables users to navigate menus with the touch screen and enter numbers with the keypad.

Time and date stamping of measurement data is automatic. The internal memory provides for the storage and recall of up to 1000 measurement setups and up to 1000 traces. Measurements and setups can be stored in a USB flash drive or transferred to a PC by using the included USB cable.

Not all after-market USB drives are compatible with the Spectrum Master. Many drives come with a second partition that contains proprietary firmware. This

Note

partition must be removed. Only one partition is allowed. Refer to the individual manufacturer for instructions on how to remove it. You may also try reformatting a drive that contains a single partition using FAT32 format.

1-2 PN: 10580-00340 Rev. M MS2720T UG

General Information 1-2 Instrument Description

Available Models

Table 1-1 lists the frequency options available with the Spectrum Master MS2720T.

Table 1-1. Spectrum Master Frequency Options

Model Frequency Range

MS2720T-0709 Spectrum Analyzer, 9 kHz to 9 GHz

MS2720T-0713 Spectrum Analyzer, 9 kHz to 13 GHz

MS2720T-0720 Spectrum Analyzer, 9 kHz to 20 GHz

MS2720T-0732 Spectrum Analyzer, 9 kHz to 32 GHz

MS2720T-0743 Spectrum Analyzer, 9 kHz to 43 GHz

MS2720T-0809 9 GHz Tracking Generator

MS2720T-0813 13 GHz Tracking Generator

MS2720T-0820 20 GHz Tracking Generator

a. Tracking Generator frequency must match instrument hardware frequency option. For example,

MS2720T-0813 is an option for MS2720T-0713.

MS2720T UG PN: 10580-00340 Rev. M 1-3

1-2 Instrument Description General Information

Available Options

Available options for the Spectrum Master are listed in Table 1-2.

Tab le 1-2. Available Options

Option Description

MS2720T-0007 Secure Data Operation

MS2720T-0009 I/Q Demodulation Hardware

MS2720T-0019 High Accuracy Power Meter (requires USB Power Sensor)

MS2720T-0024 I/Q Waveform Capture (requires Option 9)

MS2720T-0025 Interference Analyzer (Option 31 recommended)

MS2720T-0027 Channel Scanner

MS2720T-0031 GPS Receiver (requires GPS Antenna)

MS2720T-0089 Zero-Span IF Output

MS2720T-0090 Gated Sweep

MS2720T-0431 Coverage Mapping (requires Option 31 for full functionality)

MS2720T-0444 EMF Measurements (requires Anritsu Isotropic Antenna)

MS2720T-0509 AM/FM/PM Measurements (requires Option 431 for full functionality)

MS2720T-0880 GSM/GPRS/EDGE Measurements (requires Option 9)

MS2720T-0881 W-CDMA/HSPA+ Measurements (requires Option 9, Option 31

recommended)

MS2720T-0882 TD-SCDMA/HSPA+ Measurements (requires Option 9, Option 31 required

for full functionality)

MS2720T-0883 LTE/LTE-A FDD/TDD Measurements (requires Option 9, Option 31

required for full functionality)

MS2720T-0886 LTE 256 QAM Demodulation Measurements (requires Option 883)

MS2720T-0887 NB-IoT Measurements (requires Option 9)

MS2720T-0884 CDMA/EV-DO Measurements (requires Option 9, Option 31 required for

full functionality)

MS2720T-0885 WiMAX Fixed/Mobile Measurements (requires Option 9, Option 31

required for full functionality)

MS2720T-0098 Standard Calibration to ISO17025 and ANSI/NCSL Z540-1. Includes

calibration certificate.

MS2720T-0099 Premium Calibration to ISO17025 and ANSI/NCSL Z540-1. Includes

calibration certificate, test report, and uncertainty data.

1-4 PN: 10580-00340 Rev. M MS2720T UG

General Information 1-3 Calibration and Verification

1-3 Calibration and Verification

Anritsu recommends annual calibration and performance verification by local Anritsu service centers. The Spectrum Master is self-calibrating and there are no field-adjustable components. Contact information for Anritsu Service Centers is available at:

http://www.anritsu.com/contact-us.

1-4 Instrument Care and Preventive Maintenance

Instrument care and preventive maintenance consist of cleaning the unit and inspecting and cleaning the RF connectors and all accessories. Clean the instrument with a soft, lint-free cloth dampened with water or water and a mild cleaning solution.

Caution To avoid damaging the display or case, do not use solvents or abrasive cleaners.

Connector Care

Clean the RF connectors and center pins with a cotton swab dampened with denatured alcohol. Visually inspect the connectors. The fingers of the N(f) connectors and the pins of the N(m) connectors should be unbroken and uniform in appearance. If you are unsure whether the connectors are undamaged, gauge the connectors to confirm that the dimensions are correct. Visually inspect the test port cable(s). The test port cable should be uniform in appearance, and not stretched, kinked, dented, or broken.

To prevent damage to your instrument, do not use pliers or a plain wrench to tighten the Type-N connectors. The recommended torque is 12 lbf·in to 15 lbf· in (1.36 N ·m to 1.70 N·m). Inadequate torque settings can affect measurement accuracy. Over-tightening connectors can damage the cable, the connector, the instrument, or all of these items.

Visually inspect connectors for general wear, cleanliness, and for damage such as bent pins or connector rings. Repair or replace damaged connectors immediately. Dirty connectors can limit the accuracy of your measurements. Damaged connectors can harm the instrument. Connection of cables carrying an electrostatic potential, excess power, or excess voltage can damage the connector, the instrument, or both.

Connecting Procedure

1. Carefully align the connectors. The male connector center pin must slip concentrically into the contact fingers of the female connector.

2. Push connectors straight together. Do not twist or screw them together. A slight resistance can usually be felt as the center conductors mate.

3. To tighten, turn the connector nut, not the connector body. Major damage can occur to the center conductor and to the outer conductor if the connector body is twisted.

4. If you use a torque wrench, initially tighten by hand so that approximately 1/8 turn or 45 degrees of rotation remains for the final tightening with the torque wrench.

Relieve any side pressure on the connection (such as from long or heavy cables) in order to assure consistent torque. Use an open-end wrench to keep the connector body from turning while tightening with the torque wrench.

Do not over-torque the connector.

MS2720T UG PN: 10580-00340 Rev. M 1-5

1-4 Instrument Care and Preventive Maintenance General Information

Disconnecting Procedure

1. If a wrench is needed, use an open-end wrench to keep the connector body from turning while loosening with a second wrench.

2. Complete the disconnection by hand, turning only the connector nut.

3. Pull the connectors straight apart without twisting or bending.

ESD Caution

The Spectrum Master, like other high performance instruments, is susceptible to electrostatic discharge (ESD) damage. Coaxial cables and antennas often build up a static charge, which (if allowed to discharge by connecting directly to the instrument without discharging the static charge) may damage the Spectrum Master input circuitry. Instrument operators must be aware of the potential for ESD damage and take all necessary precautions.

Operators should exercise practices outlined within industry standards such as JEDEC-625 (EIA-625), MIL-HDBK-263, and MIL-STD-1686, which pertain to ESD and ESDS devices, equipment, and practices. Because these apply to the Spectrum Master, it is recommended that any static charges that may be present be dissipated before connecting coaxial cables or antennas to the instrument. This may be as simple as temporarily attaching a short or load device to the cable or antenna prior to attaching to the Spectrum Master. It is important to remember that the operator may also carry a static charge that can cause damage. Following the practices outlined in the above standards will ensure a safe environment for both personnel and equipment.

RF Input Warning

The Anritsu Spectrum Master is a sensitive measuring instrument designed to measure low power levels. Avoid damaging this sensitive circuitry by observing the maximum input levels printed on the instrument connector labeling and specified in the product technical data sheet.

Typical maximum input is +23 dBm (±50 VDC) and could be less if additional features, such as a preamplifier, are in use. Be sure to review the product technical data sheet or Anritsu website for recommended components and accessories that can help you protect your instrument. These include a variety of adapters, attenuators, filters, and RF power detection accessories.

1-6 PN: 10580-00340 Rev. M MS2720T UG

General Information 1-4 Instrument Care and Preventive Maintenance

Battery Compartment Door

Battery Replacement

The battery can be replaced without the use of tools. The battery compartment door is located on the lower left side of the instrument (when you are facing the measurement display). To remove the battery:

1. Push down on the battery door tab to disengage it.

2. Remove the battery door.

3. Pull straight out on the lanyard to remove the battery pack from the instrument.

When inserting the battery, the battery label should face up and the end where the

Note

battery contacts are located slides in first. If the battery door does not close tightly, the battery may be inserted incorrectly.

Figure 1-1. Battery Compartment Door

The battery that is supplied with the Spectrum Master may need charging before use. The battery can be charged while it is installed in the Spectrum Master by using either the AC-DC Adapter, or outside the Spectrum Master with the optional Dual Battery Charger. Refer to “Symbols and Indicators” on page 2-12 for a description of battery symbols.

Note

Caution

Use only Anritsu Company approved batteries, adapters, and chargers with this instrument. Anritsu recommends removing the battery for long-term storage of the instrument.

When using the Automotive Power Adapter, always verify that the supply is rated for a minimum of 60 Watts @ 12 VDC, and that the socket is clear of any dirt or debris. If the adapter plug becomes hot to the touch during operation, discontinue use immediately.

MS2720T UG PN: 10580-00340 Rev. M 1-7

1-4 Instrument Care and Preventive Maintenance General Information

1-8 PN: 10580-00340 Rev. M MS2720T UG

Chapter 2 — Instrument Overview

2-1 Introduction

This chapter provides an overview of the Anritsu Spectrum Master. It describes the instrument front panel, touch screen display, and the connector panel. For detailed information on the instrument’s test and measurement functions, refer to one of the Anritsu user documents listed in Appendix A, “Related Documents”.

2-2 Turning On the Spectrum Master

The Anritsu Spectrum Master is capable of approximately three hours of continuous operation from a fully charged, field-replaceable battery (refer to “Battery Replacement”

on page 1-7). The instrument can also be operated from a 12 VDC source (which will

simultaneously charge the battery). This can be achieved with either the Anritsu AC-DC Adapter or the Automotive Power Adapter. Both items are included as standard accessories with the Spectrum Master. Refer to the instrument Technical Data Sheet.

When using the Automotive Power Adapter, always verify that the supply is rated

Caution

for a minimum of 60 Watts @ 12 VDC, and that the socket is clear of any dirt or debris. If the adapter plug becomes hot to the touch during operation, discontinue use immediately.

To turn on the MS2720T, press the green On/Off button on the front panel (see Figure 2-1

on page 2-2).

The

Spectrum Master takes approximately 60 seconds to complete power-up and to load the

application software. At the completion of this process, the instrument is ready for use.

Note

Keep the fan inlet and exhaust ports clear of obstructions at all times for proper ventilation and cooling of the instrument.

MS2720T UG PN: 10580-00340 Rev. M 2-1

2-3 Instrument Front Panel Instrument Overview

2-3 Instrument Front Panel

The Spectrum Master uses a touch screen and keypad for data input. The five bottom menu keys and up to eight submenu keys on the right side of the display are touch screen keys. The menu and submenu keys vary depending on the current measurement mode, installed options, and instrument function selected.

Figure 2-1. Front Panel Overview

1. Connector Panel

2. Fan Exhaust Port

3. Submenu Keys (Active Menu or Active Function Block)

4. Menu Button

5. Power LED and Battery Charge LED

6. On/Off Button

7. Enter Key and Arrow Keys

8. Rotary Knob

9. Number Keypad (includes Shift and Esc)

10. Fan Inlet Port

11. Measurement Display or Sweep Window

12. Main Menu Keys

13. Fan Exhaust Port

2-2 PN: 10580-00340 Rev. M MS2720T UG

Instrument Overview 2-3 Instrument Front Panel

LED Indicators

Power LED

The Power LED is located on the left of the On/Off button. The LED is solid green when the instrument is on, and blinks slowly when the unit is off but is connected to an external power source.

Charge LED

The Charge LED is located on the right of the On/Off button. The LED blinks slowly when the battery is charging and is solid green when the battery is fully charged.

Front Panel Keys

The numeric keypad, rotary knob, and the four arrow keys can all be used to change the value of the currently selected parameter.

Numeric Keypad

Keys 0 through 9 are used for numeric input, with an alternate function printed in blue above each of the keys. Press the Shift key, then a numeric key, to access the instrument menu or function indicated by the key label.

Some of the alternate functions associated with the numeric keypad are not available in all measurement modes. Refer to the Measurement Guides listed in Appendix A.

Shift Key

Pressing the Shift key followed by a number key executes the function that is indicated in blue above the number key. When the Shift key is active, its icon is displayed at the far right of the title bar, above the sweep window.

Figure 2-2. Shift Key Icon in Title Bar

Esc Key

Press this key to cancel the parameter change being made and exit the current menu function, if applicable.

Arrow Keys

The four arrow keys are used to scroll through a list and highlight the item you wish to select, or to change the value of the currently selected parameter. The arrow keys can also be used to move markers. The rotary knob performs similar functions.

Enter Key

Press this key to apply a parameter value or instrument setting you have entered, or to select a highlighted item from a list.

MS2720T UG PN: 10580-00340 Rev. M 2-3

2-3 Instrument Front Panel Instrument Overview

Rotary Knob

Turn the rotary knob to change numerical values, scroll through selectable items in a list, or to move markers. Values or items may be within a dialog box or an edit window.

Menu Key

The Menu key displays a grid of shortcut icons for installed measurement modes and user-selected menus and setup files. See Figure 2-3. Press one of the icons in the top three rows to change modes. These icons are preinstalled and cannot be moved or deleted.

An alternative to the Menu key is to press Shift, then the Mode (9) key to display the Mode Selector list box. Refer to “Mode Selector” on page 2-18.

Figure 2-3. Menu Key Screen

Shortcut icons displayed in the top rows of the Menu screen vary with the

Note

instrument model, firmware version, and installed options. Help for the Menu screen is available by pressing the icon in the lower-right corner of the display.

2-4 PN: 10580-00340 Rev. M MS2720T UG

Instrument Overview 2-3 Instrument Front Panel

User-Created Shortcuts

To create a shortcut to any submenu key or main menu key, press and hold the key until a grid appears, showing the open locations on the Menu screen where you can place the new shortcut. Press one of the cells in the displayed grid to place the shortcut. See Figure 2-4.

Figure 2-4. Placement Grid for User-Created Shortcuts

To create a shortcut to a setup file (.stp), press Recall under the File menu, then press and hold the desired file name until a grid is displayed. Select the display location of the new shortcut as described above.

User-defined shortcuts remain on the Menu screen until deleted. To delete or move a shortcut icon, press the Menu key, then press and hold the shortcut until the Customize Button dialog appears. See Figure 2-5. Press the appropriate button to delete or move the shortcut icon.

Figure 2-5. Customize Button Dialog

Press Esc to close the dialog without deleting or moving the shortcut. Also use Esc to exit the Menu screen.

MS2720T UG PN: 10580-00340 Rev. M 2-5

2-4 Connector Panel Instrument Overview

2-4 Connector Panel

Figure 2-6 shows the connector panel on the MS2720T with lower frequency options (up to

20 GHz), which also have the Tracking Generator option available.

Figure 2-6. Test Panel Connectors for MS2720TOptions 709, 713, 720

1. External Trigger In Connector

2. External Reference In Connector

3. Fan Exhaust Port

4. Spectrum Analyzer RF In Port, Type N Connector

5. Location for Optional Tracking Generator RF Out, Type N Connector

6. External Power Connector

7. LAN Connection

8. USB Interface, Type A

9. USB Interface, Type Mini-B

10. Headset Jack

11. Reference Out Connector, 10 MHz

12. IF Out Connector, 140 MHz (Option 89)

13. GPS Antenna Connector

2-6 PN: 10580-00340 Rev. M MS2720T UG

Instrument Overview 2-4 Connector Panel

2 4

The connector panel shown in Figure 2-7 is for the two higher frequency options (32 GHz and 43 GHz).

Figure 2-7. Test Panel Connectors for MS2720TOptions 732, 743

1. External Trigger In Connector

2. External Reference In Connector

3. Fan Exhaust Port

4. Spectrum Analyzer RF In Port, Ruggedized Type K Connector

5. External Power Connector

6. LAN Connection

7. USB Interface, Type A

8. USB Interface, Type Mini-B

9. Headset Jack

10. Reference Out Connector, 10 MHz

11. IF Out Connector, 140 MHz (Option 89)

12. GPS Antenna Connector

Ext Trigger In

A TTL signal that is applied to the External Trigger 50 female BNC input connector causes a single sweep to occur. In the Spectrum Analyzer mode, it is used in zero span, and triggering occurs on the rising edge of the signal. After the sweep is complete, the resultant trace is displayed until the next trigger signal arrives.

Ext Ref In

The External Reference In port is a 50  BNC female connector that provides for input of an external frequency reference. Refer to your technical data sheet for valid frequencies and input levels. To prevent damage to your instrument, do not use pliers or a wrench to tighten the BNC connector or overpower the input.

MS2720T UG PN: 10580-00340 Rev. M 2-7

2-4 Connector Panel Instrument Overview

RF In

To prevent damage to your instrument, do not use pliers or a plain wrench to

Warning

tighten the connector. Do not overtighten the connector. Do not overpower the RF Input. Refer to your technical data sheet for valid frequencies and input levels. Typical maximum input is +23 dBm (±50 VDC).

MS2720T-0709, MS2720T-0713, MS2720T-0720: Type N(f), 50 Ω connector. The recommended torque is 12 lbf·in to 15 lbf·in (1.36 N·m to 1.70 N·m).

MS2720T-0732, MS2720T-0743: Type K(f), 50 Ω ruggedized connector. The recommended torque is 8 lbf·in (0.9 N·m or 90 N· cm).

Tracking Generator RF Out

This is a 50  Type N female connector (MS2720T-0809, MS2720T-0813, MS2720T-0820). To prevent damage to your instrument, do not use pliers or a plain wrench to tighten the Type-N connector. The recommended torque is 12 lbf·in to 15 lbf·in (1.36 N·m to 1.70 N·m).

External Power

This is a 2.1 mm by 5.5 mm barrel connector, 12 to 15 VDC, < 5.0 A. The external power connector is used to power the unit and for battery charging. A green blinking LED near the Power button indicates that the instrument battery is being charged by the external charging unit. The indicator is a steady green when the battery is fully charged.

When using the AC-DC Adapter, always use a three-wire power cable that is

Warning

connected to a three-wire power line outlet. If power is supplied without grounding the equipment in this manner, the user is at risk of receiving a severe or fatal electric shock.

Refer to “External Power On” on page 3-11 and “Power-On Menu” on page 5-6 when controlling the Spectrum Master via external power.

LAN Connection

The RJ-45 connector is used to connect the Spectrum Master to a local area network or directly to a PC with an Ethernet crossover cable. Integrated into this connector are two LEDs. The amber LED shows the presence of a 10 Mbit/s LAN connection when on, and a 100 Mbit/s LAN connection when off. The green LED flashes to show that LAN traffic is present. For more information on the LAN connection, Ethernet connection, and DHCP, refer to Chapter 8 and Appendix D, “LAN and DHCP”.

USB Interface – Type A

The Spectrum Master has two Type A USB connectors that accept USB Flash Memory devices for storing measurements, setup data, and screen images.

2-8 PN: 10580-00340 Rev. M MS2720T UG

Instrument Overview 2-4 Connector Panel

USB Interface – Type Mini-B

The 5-pin mini-B USB 2.0 interface can be used to connect the Spectrum Master directly to a PC. The first time the MS2720T is connected to a PC, the normal USB device detection by the computer operating system will take place. A Windows driver is installed when Master Software Tools is installed. Drivers are available for versions of the Windows XP operating system and later. During the driver installation process, specify that the installation wizard should search the Master Software Tools directory for the driver.

Note

For proper detection, Master Software Tools should be installed on the PC prior to connecting the Spectrum Master to the USB port.

Headset Jack

The 3-wire headset jack provides audio output from the built-in AM/FM/SSB demodulator and from other sounds generated by the instrument. The jack accepts a 3.5 mm 3-wire miniature phone plug such as those commonly used with cellular telephones.

Ref Out 10 MHz

The External Reference Out port is a 50  BNC female connector that provides 10 MHz at approximately –7 dBm to 0 dBm. To prevent damage to your instrument, do not use pliers or a wrench to tighten the BNC connector.

IF Out 140 MHz (Option 89)

This 50  BNC female connector is for Zero Span 140 MHz IF Output with Option 89. To prevent damage to your instrument, do not use pliers or a wrench to tighten the BNC connector.

GPS Antenna Connector (Option 31)

The GPS antenna connection on the Spectrum Master is type SMA-female. GPS function is described in Chapter 6.

MS2720T UG PN: 10580-00340 Rev. M 2-9

2-5 Interface Screen Instrument Overview

2-5 Interface Screen

Figure 2-8 illustrates the Spectrum Master interface screen in Spectrum Analyzer mode, with

touch screen menu keys, title bar, and measurement settings and results around the graph area, or sweep window.

Figure 2-8. Spectrum Analyzer Display

1. Real Time Clock (and Latitude and Longitude with GPS)

2. Data Summary, Active Marker Values

3. Measurement Display or Measurement Grid or Sweep Window

4. Battery Charge Indicator

5. Instrument Mode

6. Submenu Key Labels or Active Function Block

7. Main Menu Key Labels

8. Optional Data Window (also location of Marker Table)

9. Instrument Settings Summary

2-10 PN: 10580-00340 Rev. M MS2720T UG

Instrument Overview 2-5 Interface Screen

Note

Many of the measurement settings displayed to the left and the top of the sweep window are touch screen shortcuts to the corresponding menus.

Touch Screen Keys

Main Menu Touch Screen Keys

There are five main menu keys horizontally arranged along the bottom of the interface screen. These keys give access to the instrument’s test and measurement functions, which are documented in the applicable Measurement Guide. Refer to Appendix A, “Related

Documents”.

Different operation or measurement modes may display different main menu keys. To switch to another mode, press the Menu key, or press Shift followed by the Mode (9) key.

Note

Submenu Touch Screen Keys

Most of the instrument setup, control, and measurement functions are performed through the use of the submenu keys along the right side of the display. The key labels change as measurement settings and instrument setup parameters change. The current submenu title is displayed at the top of the submenu key block, which consists of up to eight touch screen keys. See Figure 2-8 on page 2-10.

The installed options determine what measurement modes are available. Refer to

Table1-2 onpage1-4.

Symbols and Icons on the Title Bar

Figure 2-9. Title Bar with Icons

The instrument title bar displays the system date and time. When GPS is on and is tracking satellites, its icon is followed by latitude and longitude coordinates.

Press the storage icon to open the touch screen keyboard for saving measurements, setups, limit lines, or screen display JPEG files. This shortcut to the “Save Menu” on page 4-10 is equivalent to pressing Shift and File (7), then Save. Refer to “Save Dialog Box” on page 4-3.

Press the camera icon to save a JPEG image of the current screen display.

The battery symbol indicates the charge remaining in the battery. The colored section inside the symbol changes size and color with the charge level. See Table 2-1 on page 2-12. The Battery Charge LED (adjacent to the On/Off button) flashes when the battery is charging, and remains on steady when the battery is fully charged.

Caution

The Shift icon is displayed when the Shift key is pressed, and it remains displayed until another button is pressed.

Use only Anritsu-approved batteries, adapters, and chargers with this instrument. Anritsu recommends removing the battery for long-term storage of the instrument.

MS2720T UG PN: 10580-00340 Rev. M 2-11

2-5 Interface Screen Instrument Overview

Shift

Symbols and Indicators

The following symbols, icons, and indicators convey the instrument status or condition on the display. The colors shown here are in the standard or default display mode.

Tab le 2-1. Symbols and Icons

Symbol Description

Green: Battery is 30% to 100% charged.

Yellow: Battery is 10% to 30% charged.

Red: Battery 0% to 10% charged.

Green with Black Plug body: Battery is fully charged and

external power is applied.

Lightning Bolt: Battery is being charged (any color symbol).

Red Plug body: External power is applied, and no battery is

installed, or battery has lost communications with the instrument.

Storage Icon: Tap the floppy disk icon to display the Save screen and menu.

Camera Icon: Saves a JPEG image of the current screen display.

Shift Key Icon: This icon is displayed between the battery symbol

and the submenu keys after the Shift key has been pressed, and until another key is pressed.

GPS Icon: This icon is displayed right after the date and time when GPS is available. Refer to Chapter 6, “GPS (Option 31)” for details.

Power Button with Power LED and Charge LED: This is a physical button with LED indicators. It is located near the numeric keypad.

2-12 PN: 10580-00340 Rev. M MS2720T UG

Instrument Overview 2-5 Interface Screen

Black on White Night Vision

Display Settings

The Display Settings submenu lets you adjust the screen brightness level and control the auto-dimming function. Refer to “Brightness Settings Menu” on page 5-8.

You can also turn off the display entirely, as described in “Display Settings Menu”

on page 5-7. To turn the display back on, press any key (except the Power button) three times

in rapid succession.

In addition to the default display colors shown in Figure 2-8 on page 2-10, you can select different color schemes to suit the ambient lighting conditions. See Figure 2-10. Some color settings may not be available in all measurement modes.

Black on White — used for printing and viewing in broad daylight conditions

Night Vision — optimized for nighttime viewing

High Contrast — used in challenging viewing conditions

Color on White — used for printing and viewing in broad daylight conditions

Color on WhiteHigh Contrast

Figure 2-10. Spectrum Master Display Color Settings

MS2720T UG PN: 10580-00340 Rev. M 2-13

2-5 Interface Screen Instrument Overview

Touch Screen Calibration

Calibration optimizes the response of touch input. It is recommended if the instrument does not respond as expected when you press the touch screen.

The Calibrate Touch Screen submenu key is in the “System Menu” on page 5-3. When pressed, a message box is displayed with instructions for calibration. See Figure 2-11. Press Enter to begin calibration, or press Esc to cancel. Alternatively, you can press 1 while the message box is displayed to use the arrow keys for navigation. Refer to “Disable Touch Screen to Use

Arrow Navigation”.

Figure 2-11. Touch Screen Calibration Message Box

During calibration, press the crosshairs in sequence as they appear on the screen. The process takes less than one minute.

Calibrate Touch Screen Shortcut

Another way to access touch screen calibration is to press Shift, then 0 (zero). This displays the touch screen calibration message box shown in Figure 2-11. The shortcut can be used if your touch inputs do not correspond to the appropriate locations on the screen to such an extent that you cannot access the Calibrate Touch Screen submenu key.

Disable Touch Screen to Use Arrow Navigation

If the touch screen is not functioning, you can use Arrow Navigation to simulate pressing the touch screen main menu keys and submenu keys. From the touch screen calibration message box (see Figure 2-11), press 1 to display the arrow navigation message box, illustrated in

Figure 2-12. Press 1 again to enter the arrow navigation mode, or press Esc to cancel.

Figure 2-12. Arrow Navigation Message Box

In arrow navigation mode, a red border highlights the currently selected key (see Figure 2-13

on page 2-15). Use the arrow keys to move the red selection box, then press the Menu key to

activate the highlighted key. Only the main menu keys and submenu keys can be activated using Arrow Navigation. This feature does not move the red selection box into other areas of the touch screen, like the display title bar, sweep window, or the instrument settings area on the left.

2-14 PN: 10580-00340 Rev. M MS2720T UG

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