Comtech EF Data SMS-7000 User Manual

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SMS-7000

Modem Protection Switch

Installation and O

Part Number MN/SMS7000.IOM Revision 3

eration Manual

Errata A

Comtech EF Data Documentation Update

Subject:

Date: Document:

Part Number: Collating Instructions:

Comments:

The following changes provide updated information for Figure2-2. This information will be incorporated into the next revision.

Changes to Table 3-4 (Interface Configuration Jumper Settings)

October 5, 2001 SMS-7000 Modem Protection Switch Installation and Operation Manual, Revision 3, September 30, 1999 MN/SMS7000.EA3 Attach this page to page 2-11

Change Specifics:

See following page…….

Filename: T_ERRATA

10-32x ½ Socket Head Screw (4)

Latch Striker Plate FP/5154

Fiber Washers (2)

Left Hinge Mounting Plate FP/5152-2

Black Latch Knobs LATCH04 (2)

1/4-20x1/4 Socket Head Shoulder Screw (2)

Hinge Base FP/5151

#10 Flat Washers (4)

IFU

DSU

Hinge Latch Panel FP/5153

Fiber Washers (2)

Latch Striker Plate FP/5154

Filename: T_ERRATA

Remove the Po wer Supplies to install from the inside:

#10 Flat Washer s(4)

(4) 10-32x ½ So cket Head scre ws

Right Hinge Mounting Plate FP/5152-1

Figure 0-1. Back Mount (Hinge) Installation

1/4-20x1/4 Socket Head Shoulder Screw (2)

Comtech EFData Documentation Update

Subject: Date:

Document: Part Number:

Collating Instructions:

Comments:

The following changes provide updated information to Table 3-4.

Backup Mod #n Backup Demod #n Backup #n Switching Mode Independent

Prime Mod #n Prime Mod #1, 2, 3, 4 Priority Prime Mod #5, 6 Priority Prime Mod #7, 8 Priority Low Prime #5, 6, 7, 8 Multiplexer No Prime Mod #1 through 7 Delay None D&I #1, 2, 3, 4 Unbalanced Prime Mod # 8 Delay Prime Demod #n Prime Demod #1, 2, 3, 4 Priority Prime Demod #5, 6 Priority Prime Demod #7, 8 Priority Low Insert Data Input #5, 6, 7, 8 Prime Demod # 1 through 5 Delay None

Prime Mod #n Prime Demod #n Prime Mod #1, 2, 3, 4 Priority Prime Mod #5, 6 Priority Prime Mod #7, 8 Priority Low Insert Data Input #1, 2, 3, 4 Normal Prime Mod #1 through 5 Delay None D&I #5, 6, 7, 8 Prime Mod #6, 7 Delay Prime Mod # 8 Delay

Operation Mode Time Current Parity Even

Date Current Remote Type EIA-485 (2Remote Baud Rate 9600 bit/s Mode Control Baud Rate 9600 bit/s

Errata B

Changes to Table 3-4 (Initial Defaults) October 5, 2001

SMS-7000 Modem protection Switch Installation and Operation Manual, Rev. 3, dated September 30, 1999 MN/SMS7000.EB3 Attach this page to page 3-33

Table 3-4. Initial Defaults

Configuration Backup #n (n = 1 or 2)

Off Off

Configuration Independent Prime #n (n = 1 through 8)

Off Low Low

None Off Low Low

Configuration Dependent Prime #n (n = 1 through 8)

Off Off Low Low

None None

Configuration Operation Mode

Manual

Utility System

Backup #1 Multiplexer Backup #2 Mulitiplexer No

Prime Demod #6, 7 Delay Prime Demod #8 Delay Prime #1, 2, 3, 4 Multiplexer

External Clock #1, 2, 3, 4 Unbalanced Insert Data Input #1, 2, 3, 4 Normal D&I #5, 6, 7, 8 External Clock #5, 6, 7, 8

Prime #1, 2, 3, 4 Multiplexer Prime #5, 6, 7, 8 Multiplexer No D&I #1, 2, 3, 4 Unbalanced External Clock #1, 2, 3, 4 Unbalanced

External Clock #5, 6, 7, 8 Insert Data Input #5, 6, 7, 8

None None No

Unbalanced Unbalanced Normal

Wire)

Filename: T_ERRATA

Errata C

Comtech EFData Documentation Update

Subject:

Date: Document:

Part Number: Collating Instructions:

Customer Support

Contact the Comtech EFData Customer Support Department for:

• Product support or training

• Information on upgrading or returning a product

• Reporting comments or suggestions concerning manuals

A Customer Support representative may be reached at:

Comtech EFData Attention: Customer Support Department 2114 West 7th Street Tempe, Arizona 85281 USA

(480) 333-2200 (Main Comtech EFData Number) (480) 333-4357 (Customer Support Desk) (480) 333-2161 FAX

or, E-Mail can be sent to the Customer Support Department at:

service@comtechefdata.com

1. To return a Comtech EFData product (in-warranty and out-of-warranty) for repair or replacement:

2. Request a Return Material Authorization (RMA) number from the Comtech EFData Customer Support Department.

3. Be prepared to supply the Customer Support representative with the model number, serial number, and a description of the problem.

4. To ensure that the product is not damaged during shipping, pack the product in its original shipping carton/packaging.

5. Ship the product back to Comtech EFData. (Shipping charges should be prepaid.)

For more information regarding the warranty policies, see Warranty Policy, p. xii.

ii Rev. 3

Customer Support ...................................................................................................................................................... ii

Overview of Changes to Previous Edition ............................................................................................................. viii

About this Manual................................................................................................................................................... viii

EMC Compliance ........................................................................................................................................................x

Warranty Policy........................................................................................................................................................ xii

CHAPTER 1. INTRODUCTION.......................................................................................................... 1–1

1.1

Overview......................................................................................................................................................1–2

1.1.1 Compatibility ...........................................................................................................................................1–2

1.1.2 Data Formats............................................................................................................................................1–4

1.1.3 Options.....................................................................................................................................................1–5

1.1.4 Protection Switch.....................................................................................................................................1–6

1.2 Description ..................................................................................................................................................1–6

1.2.1 Switch Controller Unit (SCU)..................................................................................................................1–8

1.2.2 Data Switch Unit (DSU) ..........................................................................................................................1–9

1.2.3 IF Switch Unit (IFU)..............................................................................................................................1–11

1.3 Specifications ............................................................................................................................................1–12

CHAPTER 2. INSTALLATION ...........................................................................................................2–1

2.1

Unpacking ...................................................................................................................................................2–1

2.2 Equipment Inspection ................................................................................................................................2–2

2.2.1 Included Parts...........................................................................................................................................2–2

2.2.2 Back Mount (Hinged) Hardware Kit........................................................................................................2–3

2.2.3 Top Mount Hardware Kit.........................................................................................................................2–4

2.2.4 Cables.......................................................................................................................................................2–5

2.2.5 Tools Required.........................................................................................................................................2–6

Rev. 3 iii

Preface SMS-7000 Modem Protection Switch

2.3 Mounting .....................................................................................................................................................2–7

2.3.1 Description...............................................................................................................................................2–7

2.3.1.1 Top Mount.......................................................................................................................................2–7

2.3.1.2 Back Mount .....................................................................................................................................2–7

2.3.2 Installation................................................................................................................................................2–8

2.3.2.1 Switch Control Unit.........................................................................................................................2–8

2.3.2.2 Top Mount Installation....................................................................................................................2–8

2.3.2.3 Back Mount Installation ................................................................................................................2–10

2.4 Cable Installation......................................................................................................................................2–13

2.4.1 Interconnecting the Switch Components................................................................................................2–13

2.4.1.1 SCU (J4) to DSU (J11) Interface...................................................................................................2–15

2.4.1.2 Remote Connection .......................................................................................................................2–15

2.4.1.3 DSU (J12) to IFU (J1)...................................................................................................................2–16

2.4.1.4 DSU J9 (BU1) Modem Connector to Backup Modem..................................................................2–16

2.4.1.5 DSU JI CH to Prime Modem.........................................................................................................2–16

2.4.1.6 IFU Connections (CP17 through CP36)........................................................................................2–17

2.5 Configuration Setup .................................................................................................................................2–17

2.5.1 Configure Rack Setup............................................................................................................................2–17

2.5.2 Trouble Shoot Configuration .................................................................................................................2–19

2.6 DSU Data Connections (J1 through J10)................................................................................................2–20

2.6.1 SCU Rear Panel .....................................................................................................................................2–22

2.6.1.1 User Remote (J1)...........................................................................................................................2–22

2.6.1.2 Modem Remote (J2)......................................................................................................................2–23

2.6.1.3 Switch Faults (J3)..........................................................................................................................2–23

2.6.1.4 Prime Mod (Online) Status (J6) ....................................................................................................2–24

2.6.1.5 Prime Mod (Online) Status (J5) ....................................................................................................2–25

2.6.2 DSU Terrestrial Data Interfaces.............................................................................................................2–26

2.6.2.1 EIA-422/8 kbit/s Terrestrial Data (J6)...........................................................................................2–27

2.6.2.2 V.35/EIA-232-C Terrestrial Data (J1)...........................................................................................2–29

2.6.2.3 Engineering Service Channel Data (J4).........................................................................................2–30

2.6.2.4 Alarms (J2)....................................................................................................................................2–31

2.6.2.5 ADPCM Audio Data (J5)..............................................................................................................2–32

2.6.2.6 Balanced G.703/Drop & Insert Data (J3) ......................................................................................2–33

2.6.2.7 Unbalanced Data Ports ..................................................................................................................2–34

2.6.3 IFU Uplink and Downlink IF (CP1 through CP16) ...............................................................................2–35

CHAPTER 3. OPERATION ................................................................................................................3–1

3.1

Configuration..............................................................................................................................................3–1

3.1.1 Backup Modems ......................................................................................................................................3–2

3.1.2 Prime Modems .........................................................................................................................................3–2

3.2 Front Panel..................................................................................................................................................3–2

3.2.1 LED Indicators.........................................................................................................................................3–3

3.2.2 Front Panel Controls ................................................................................................................................3–4

3.3 Menu System...............................................................................................................................................3–5

3.4 Front Panel Menu.......................................................................................................................................3–7

3.4.1 Configuration Backup 1 and 2 Menu.......................................................................................................3–9

3.4.2 Configuration Independent Prime 1 through 8 Menu.............................................................................3–11

iv Rev. 3

SMS-7000 Modem Protection Switch Preface

3.4.3 Configuration Dependent Prime 1 through 8 Menu...............................................................................3–15

3.4.4 Configuration Load/Verify Menu ..........................................................................................................3–17

3.4.5 Configuration Operation Mode Menu....................................................................................................3–19

3.4.6 System Status Switching Menu..............................................................................................................3–21

3.4.7 System Status Configuration Menu........................................................................................................3–23

3.4.8 Faults/Alarms Menu...............................................................................................................................3–25

3.4.9 Stored Faults/Alarms Menu ...................................................................................................................3–27

3.4.10 Utility System Menu..........................................................................................................................3–29

3.5 Setup and Configuration..........................................................................................................................3–30

3.5.1 Utility Setup...........................................................................................................................................3–30

3.5.2 Configuration .........................................................................................................................................3–30

3.5.2.1 Backup...........................................................................................................................................3–30

3.5.2.2 Prime .............................................................................................................................................3–31

3.5.2.3 Load/Verify ...................................................................................................................................3–31

3.5.2.4 Operation Mode.............................................................................................................................3–32

3.6 Faults .........................................................................................................................................................3–32

3.7 Revision Status..........................................................................................................................................3–32

3.8 Initial Defaults ..........................................................................................................................................3–33

CHAPTER 4. THEORY OF OPERATION.......................................................................................... 4–1

4.1

Interfaces.....................................................................................................................................................4–1

4.1.1 Configuration ...........................................................................................................................................4–1

4.1.2 Terrestrial Data ........................................................................................................................................4–3

4.1.3 IF Uplink/Downlink.................................................................................................................................4–3

4.1.4 Monitors...................................................................................................................................................4–4

4.1.5 Modem Interfaces.....................................................................................................................................4–5

4.2 Switching Modes.........................................................................................................................................4–6

4.2.1 Manual Mode...........................................................................................................................................4–6

4.2.2 Auto Mode ...............................................................................................................................................4–6

CHAPTER 5. MAINTENANCE...........................................................................................................5–1

5.1

Periodic Maintenance.................................................................................................................................5–1

5.2 Software Revisions......................................................................................................................................5–1

5.3 Fault Action.................................................................................................................................................5–2

5.3.1 Modem.....................................................................................................................................................5–2

5.3.2 Switch ......................................................................................................................................................5–3

APPENDIX A. REMOTE CONTROL OPERATION............................................................................. A–1

A.1

General .......................................................................................................................................................A–1

A.2 Message Structure .....................................................................................................................................A–3

A.2.1 Start Characters...................................................................................................................................A–4

Rev. 3 v

Preface SMS-7000 Modem Protection Switch

A.2.2 Command/Response ...........................................................................................................................A–4

A.2.3 End Character .....................................................................................................................................A–5

A.3 Configuration Commands/Responses......................................................................................................A–6

A.3.1 Backup Modem...................................................................................................................................A–6

A.3.2 Prime Modem .....................................................................................................................................A–7

A.3.3 Switch ................................................................................................................................................. A–8

A.3.4 Breakout..............................................................................................................................................A–9

A.3.5 System ................................................................................................................................................A–9

A.3.6 Mode.................................................................................................................................................A–10

A.4 Status Commands/Responses .................................................................................................................A–11

A.5 Stored Faults ............................................................................................................................................A–20

A.6 About Switch............................................................................................................................................A–21

APPENDIX B. M-2000 MULTIPLEXER UTILIZATION ...................................................................... B–1

B.1

Installation .................................................................................................................................................B–1

B.2 Operation ...................................................................................................................................................B–3

Figures

Figure 1-1. SMS-7000 ..............................................................................................................................................1–1

Figure 1-2. Block diagram........................................................................................................................................1–7

Figure 1-3. SCU front panel .....................................................................................................................................1–8

Figure 1-4. SCU rear panel.......................................................................................................................................1–8

Figure 1-5. DSU/IFU terrestrial side ........................................................................................................................1–9

Figure 1-6. DSU/IFU modem side..........................................................................................................................1–10

Figure 2-1. Top mount installation...........................................................................................................................2–9

Figure 2-2. Back mount (hinge) installation...........................................................................................................2–11

Figure 2-3. Hinge mount, side view .......................................................................................................................2–12

Figure 2-4. Hinge mount, top view.........................................................................................................................2–12

Figure 2-5. Typical switch installation ...................................................................................................................2–14

Figure 2-6. SCU rear panel.....................................................................................................................................2–22

Figure 2-7. DSU/IFU terrestrial side ......................................................................................................................2–26

Figure 3-1. SMS-7000 front panel view...................................................................................................................3–1

Figure 3-2. Main menu.............................................................................................................................................3–7

Figure 3-3. Configuration backup 1 and 2 menu ......................................................................................................3–8

Figure 3-4. Configuration independent prime 1 through 8 menu ...........................................................................3–10

Figure 3-5. Configuration dependent prime 1 through 8 menu ..............................................................................3–14

Figure 3-6. Configuration load/verify menu...........................................................................................................3–16

Figure 3-7. Configuration operation mode menu ...................................................................................................3–18

Figure 3-8. System status switching menu .............................................................................................................3–20

Figure 3-9. System status configuration menu .......................................................................................................3–22

Figure 3-10. Faults/alarms menu ............................................................................................................................3–24

Figure 3-11. Stored faults/alarms menu..................................................................................................................3–26

Figure 3-12. Utility system menu ...........................................................................................................................3–28

Figure 4-1. IF switch block diagram.........................................................................................................................4–2

Figure B-1. Terrestrial data interconnections ...........................................................................................................b–2

vi Rev. 3

SMS-7000 Modem Protection Switch Preface

Tables

Table 1-1. SMS-7000 modem hardware compatibility.............................................................................................1–3

Table 1-2. Data formats ............................................................................................................................................1–4

Table 1-3. Options ....................................................................................................................................................1–5

Table 1-4. Protection switch.....................................................................................................................................1–6

Table 1-5. SMS-7000 specifications.......................................................................................................................1–12

Table 2-1. 50-pin cable...........................................................................................................................................2–16

Table 2-2. Trouble shooting ...................................................................................................................................2–19

Table 2-3. DSU data connections (J1 through J10) ................................................................................................2–20

Table 2-4. User remote EIA-485/EIA-232 connector (J1) .....................................................................................2–22

Table 2-5. Modem remote EIA-485 connector (J2)................................................................................................2–23

Table 2-6. Switch faults connector (J3)..................................................................................................................2–23

Table 2-7. Prime mod online connector (J6) ..........................................................................................................2–24

Table 2-8. Prime demod online connector (J5).......................................................................................................2–25

Table 2-9. EIA-422 terrestrial data connectors (J6)................................................................................................2–27

Table 2-10. V.35/EIA-232 terrestrial data connectors (J1).....................................................................................2–29

Table 2-11. Engineering service channel data connectors (J4)...............................................................................2–30

Table 2-12. Alarms (J2) connectors........................................................................................................................2–31

Table 2-13. ADPCM audio data (J5) connectors....................................................................................................2–32

Table 2-14. Balanced G.703/drop & insert data connectors (J3)............................................................................2–33

Table 2-15. Unbalanced data connectors................................................................................................................2–34

Table 2-16. IFU uplink/IF downlink data connectors.............................................................................................2–35

Table 3-1. LED indicators ........................................................................................................................................3–3

Table 3-2. Front panel keypad..................................................................................................................................3–4

Table 3-3. Revision status.......................................................................................................................................3–32

Table 3-4. Initial defaults........................................................................................................................................3–33

Table 4-1. DSM interfaces........................................................................................................................................4–3

Table 4-2. SCU chassis connectors...........................................................................................................................4–4

Table 4-3. SCU rear panel connectors......................................................................................................................4–5

Table 5-1. Switch fault analysis................................................................................................................................5–3

Table A-1. SMS-7000 remote control: SMS-658/SMS-758 comparison table ........................................................a–2

Table B-1. SMS-7000/M-2000 50-pin to 37-pin interface cable pinouts .................................................................b–3

Rev. 3 vii

Preface SMS-7000 Modem Protection Switch

Overview of Changes to Previous Edition

This revision supersedes part number MN/SMS7000 Rev. 2 dated October 3, 1997.

A summary of the changes made for Rev. 2 includes:

Chapter 1 Updated Compatibility and Data Formats paragraph and specified that

the SDM-300 modem must be the 50-pin configuration. Added Options paragraph. Revised Figure 1-2 to include cable part numbers. Updated specifications paragraph to the current specification. Relocated mounting information to Chapter 2.

Chapter 2 Added Equipment Inspection paragraphs to reflect mounting kits and

required tooling. Added cable information. Revised mounting instructions by including description and installation information. Added trouble shooting information for installation procedures.

Chapter 3 Updated software menu from version 2.1.7 to 2.1.8.

Added revision emulation and initial default paragraphs.

Appendix A Updated to software version 2.1.8.

General Deleted Mounting appendix.

Reidentified Multiplexer section as Appendix B.

About this Manual

This manual provides installation and operation information for the Comtech EFData SMS-7000 Modem Protection Switch. This is a technical document intended for earth station engineers, technicians, and operators responsible for the operation and maintenance of the SMS-7000.

Conventions and References

Cautions and Warnings

CAUTION indicates a hazardous situation that, if not avoided, may result in minor or moderate injury. CAUTION may also be used to indicate other

CAUTION

unsafe practices or risks of property damage.

WARNING indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury.

WARN ING

Metric Conversion

Metric conversion information is located on the inside back cover of this manual. This information is provided to assist the operator in cross-referencing English to Metric conversions.

Recommended Standard Designations

Recommended Standard (RS) Designations have been superseded by the new designation of the Electronic Industries Association (EIA). References to the old designations are shown only when depicting actual text displayed on the screen of the unit (RS-232, RS485, etc.). All other references in the manual will be shown with the EIA designations (EIA-232, EIA-485, etc.) only.

Military Standards

References to “MIL-STD-188” apply to the 114A series (i.e., MIL-STD-188-114A), which provides electrical and functional characteristics of the unbalanced and balanced voltage digital interface circuits applicable to both long haul and tactical communications. Specifically, these references apply to the MIL-STD-188-114A electrical characteristics for a balanced voltage digital interface circuit, Type 1 generator, for the full range of data rates. For more information, refer to the Department of Defense (DOD) MIL-STD-188-114A, “Electrical Characteristics of Digital Interface Circuits.”

Trademarks

Other product names mentioned in this manual may be trademarks or registered trademarks of their respective companies and are hereby acknowledged.

Rev. 3 ix

Preface SMS-7000 Modem Protection Switch

Reporting Comments or Suggestions Concerning this Manual

Comments and suggestions regarding the content and design of this manual will be appreciated. To submit comments, please contact the Comtech EFData Customer Support Department.

EMC Compliance

EN55022 Compliance

This equipment meets EN55022.

This is a Class A product. In a domestic environment it may cause radio interference in which the user may be required to take adequate measures.

Federal Communications Commission (FCC)

Note: All cables shall be shielded.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.

This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

x Rev. 3

SMS-7000 Modem Protection Switch Preface

Low Voltage Directive (LVD)

The following information is applicable for the European Low Voltage Directive (EN60950):

<HAR>

Type of power cord required for use in the European Community.

CAUTION: Double-pole/Neutral Fusing.

International Symbols:

Symbol Definition Symbol Definition

ACHTUNG: Zweipolige bzw. Neutralleiter-Sicherung.

Alternating Current.

Protective Earth

Fuse.

Chassis Ground.

Notes:

1. For additional symbols, refer to “Cautions” listed earlier in this preface.

2. Applicable testing is routinely performed as a condition of manufacturing on all units to ensure compliance with requirements of EN60950 for Safety.

Rev. 3 xi

Preface SMS-7000 Modem Protection Switch

Warranty Policy

This Comtech EFData product is warranted against defects in material and workmanship for a period of one year from the date of shipment. During the warranty period, Comtech EFData will, at its option, repair or replace products that prove to be defective.

For equipment under warranty, the customer is responsible for freight to Comtech EFData and all related custom, taxes, tariffs, insurance, etc. Comtech EFData is responsible for the freight charges only for return of the equipment from the factory to the customer. Comtech EFData will return the equipment by the same method (i.e., Air, Express, Surface) as the equipment was sent to Comtech EFData.

Limitations of Warranty

The foregoing warranty shall not apply to defects resulting from improper installation or maintenance, abuse, unauthorized modification, or operation outside of environmental specifications for the product, or, for damages that occur due to improper repackaging of equipment for return to Comtech EFData.

No other warranty is expressed or implied. Comtech EFData specifically disclaims the implied warranties of merchantability and fitness for particular purpose.

Exclusive Remedies

The remedies provided herein are the buyer's sole and exclusive remedies. Comtech EFData shall not be liable for any direct, indirect, special, incidental, or consequential damages, whether based on contract, tort, or any other legal theory.

Disclaimer

Comtech EFData has reviewed this manual thoroughly in order that it will be an easy-touse guide to your equipment. All statements, technical information, and recommendations in this manual and in any guides or related documents are believed reliable, but the accuracy and completeness thereof are not guaranteed or warranted, and they are not intended to be, nor should they be understood to be, representations or warranties concerning the products described. Further, Comtech EFData reserves the right to make changes in the specifications of the products described in this manual at any time without notice and without obligation to notify any person of such changes.

If you have any questions regarding your equipment or the information in this manual, please contact the Comtech EFData Customer Support Department.

xii Rev. 3

Chapter 1.

INTRODUCTION

This chapter provides an overview, description, and specifications for the SMS-7000 satellite modem protection switch. The SMS-7000 is hereinafter referred to in this manual as “the switch”, and includes the following components (refer to Figure 1-1):

•

IFU Intermediate Frequency Switch Unit

•

DSU Data Switch Unit

•

SCU Switch Control Unit

Figure 1-1. SMS-7000

Rev. 3 1–1

Introduction SMS-7000 Modem Protection Switch

1.1 Overview

The switch is specifically designed to perform automatic redundancy switching for any combination of up to two backup and eight prime Comtech EFData satellite modems. Up to eight separate uplinks and downlinks can be accessed by the user at any time.

Each switch channel has a built-in breakout panel that is automatically configured to support overhead, non-overhead, and programmable data-type modems. Configuration and control of the switch and attached modems may be performed from a terminal or PC connected to the switch remote port (refer to Appendix A); or directly from the switch front panel (refer to Chapter 3).

The switch is compatible with the M-2000 multiplexer (refer to Appendix C for more information).

The switch is tested and certified to CE-Mark requirements.

1.1.1 Compatibility

The switch is designed to operate with the following Comtech EFData modems:

•

SDM-100 • SDM-300A (see Note)

•

SDM-308-4 • SDM-6000

•

SDM-308-5 • SDM-8000

•

SDM-309B • SLM-3650 (see Note)

•

SDM-650B • SLM-6650

•

SDM-300 (see Note) • SLM-8650

Note:

Use the 50-pin D connector configuration with the switch.

1–2 Rev. 3

SMS-7000 Modem Protection Switch Introduction

For modem compatibility, refer to Table 1-1.

Table 1-1. SMS-7000 Modem Hardware Compatibility

Rack Setup Backup Comments

SDM-308-4 SDM-6000

SDM-308-5 SDM-6000 SDM-309B SDM-6000 SDM-308-4 SDM-8000

SDM-308-5 SDM-8000 SDM-309B SDM-8000 SDM-650B SDM-100A SDM-100A SDM-300/-300A SDM-308-4 SDM-300/-300A

SDM-308-5 SDM-300/-300A SDM-309 SDM-300/-300A SDM-650B SDM-300/-300A SDM-6000 SDM-300/-300A SLM-3650 None Only compatible with SLM-3650, incorporating the 50-pin Data

SLM-6650 None Only compatible with SLM-6650. SLM-8650 None Only compatible with SLM-8650.

Either SDM-6000 must be configured as Modem Type 1 to be compatible

with SDM-308-4 (M1200P).

Note:

SDM-6000 must be configured as Modem Type 4 to be

compatible with SDM-308-4 (old IDR interface). (See Note 1)

Either SDM-6000 must be configured as Modem Type 3 to be compatible

with SDM-308-5. (See Note 1)

Either SDM-6000 must be configured as Modem Type 2 to be compatible

with SDM-309 (M1200P). (See Note 1)

Either SDM-8000 must be configured as Modem Type 1 to be compatible

with SDM-308-4.(M1200P).

Note:

SDM-8000 must be configured as Modem Type 4 to be compatible with SDM-308-4 (old IDR interface) or Type 5 to be compatible with SDM-308-4 (M1200/RS). (See Note 1)

Either SDM-8000 must be configured as Modem Type 3 to be compatible

with SDM-308-5. (See Note 1)

Either SDM-8000 must be configured as Modem Type 2 to be compatible

with SDM-309 (M1200P). (See Note 1)

Either SDM-100A must have sequential decoder option, and be configured

as Modem Type 1 to be compatible with SDM-650B. (See Note 1)

Either SDM-300/300A, incorporating the 50-pin Data Interface connector

must be configured to emulate an SDM-100A (Ver: 15.7.1).

Either SDM-300/300A, incorporating the 50-pin Data Interface connector

must be configured to emulate an SDM-308-4 (Ver: 4.03, 6.05, or

7.03).

Either SDM-300/300A, incorporating the 50-pin Data Interface connector

must be configured to emulate an SDM-308-5 (Ver: 6.08).

Either SDM-300/300A, incorporating the 50-pin Data Interface connector

must be configured to emulate an SDM-309 (Ver: 6.04).

Either SDM-300/300A, incorporating the 50-pin Data Interface connector

must be configured to emulate an SDM-650B (Ver; 4.12A or 4.16)

Either SDM-300/300A, incorporating the 50-pin Data Interface connector

must be configured to emulate an SDM-6000 (Ver: 5.1.1)

Interface connector.

Notes

1. Modem control feature supported by latest code release for SDM-100, SDM-6000, and SDM-8000.

2. Backup modems are always compatible with primes of like models when they are comparably equipped.

3. Consult Comtech EFData Customer Support for combinations not shown in Table 1-1.

4. Compatibility differences between modems exist due to the fact that the specific capabilities of modems vary. For example, the SDM-8000 has a larger set of framing structure parameters than the SDM-300, etc.

Rev. 3 1–3

Introduction SMS-7000 Modem Protection Switch

1.1.2 Data Formats

Table 1-2 lists the data formats that the switch will support.

Table 1-2. Data Formats

Data Type Connector

V.35 Data 25-pin D EIA-422/MIL-STD-188 Data IDR 8K Data Channel 37-pin D G.703 Balanced 15-pin D G.703 Unbalanced Coax BNC EIA-232 Data 25-pin D ADPCM Audio Data or 64K Data Overhead 9-pin D Engineering Data Channel ASYNC Overhead 25-pin D Alarms 25-pin D

Under the following conditions, the switch is designed to operate with prime modems configured with different overhead data types, such as, IDR, IBS, D&I, ASYNC, or NONE; and/or with different terrestrial data types, such as, EIA-422, V.35, or G.703:

•

Modems must be one of the following models:

SDM-6000

SDM-8000

SLM-6650

SLM-8650

•

Backup modems must have an AS/2876 interface relay board option installed, in order for the backup modem to switch between IDR, IBS, and Custom mode.

•

Backup modems’ switching mode must be dependent when there is a mixture of prime modem types. Example: Prime 1 is IDR, and Prime 2 is IBS, EIA-422.

Backup modems must be comparably equipped to the prime modems assigned. (Example: Backup #1 is an SDM-8000 configured with a relay card and a sequential decoder. It can backup prime modems (SDM-8000) that are configured as prime #1 IDR and prime #2 configured for Custom sequential. Backup # 2 can also be an SDM-300 backing up a set of prime SDM-300 modems. The backup modems can be directed to a specific set of modems.)

1–4 Rev. 3

SMS-7000 Modem Protection Switch Introduction

1.1.3 Options

Table 1-3 lists the options that are applicable to the switch.

Table 1-3. Options

Input Power Mounting Kit IF Switch Switch Type Switch Quantity Option

AC Top KT/5275 No IF Switch Universal 1 None DC Back KT/5274

75Ω Attached 50Ω Attached 75Ω Unattached 50Ω Unattached

2 3 4 5 6 7 8

Rev. 3 1–5

Introduction SMS-7000 Modem Protection Switch

1.1.4 Protection Switch

Refer to Table 1-4 for part numbers of various switch component.

Table 1-4. Protection Switch

Part Number Description

PL/4800 Chassis Controller PL/4801-1 PL/4801-2 PL/4802 Switch, Data PL/4803 Power Supply, AC PL/4831 Power Supply, DC CA/5343 Cable Assembly, 15-Pin, EMI CA/5361-1 Cable Assembly, Switch to Controller, 6 ft. (182.88 cm)

1.2 Description

The switch (Figure 1-1) is composed of three units:

Switch Control Unit (SCU)

•

and configuration.

Data Switch Unit (DSU)

•

data configuration and backup modem data switching.

IF Switch (IFU)

•

switching.

IF Switch, 75 IF Switch, 50

Ω

— User interface for switch and modem control

— As commanded by the SCU, performs terrestrial

— As commanded by the SCU, performs backup modem IF

This 3-chassis arrangement gives the user control of the switch from the one unit (1U) rack mounted SCU front panel. The DSU and IFU, which contain all terrestrial and link interfaces, are mounted inside the rack to minimize rack and external interface cabling. These units will accommodate the particulars of external interface requirements. They can be separated or joined together and mounted either in the rear or on the top of the rack.

1–6 Rev. 3

SMS-7000 Modem Protection Switch Introduction

The switch functional block diagram (Figure 1-2) displays the functional partitioning and interconnection between the three chassis.

Two cables interconnect the three units. The SCU and DSU are connected via a cable that transfers power, faults, and switch control between the two chassis. Power, modem faults, and switch faults originate from the DSU, while switch control commands are initiated by the SCU. The IFU is connected to the DSU in the same manner.

CONTROL UNIT

REMOTE CONTROL

EIA-485/232

UP/DOWN LINK

16 COAX

IF SWITC H U NIT

COAX

SWITCH

SLAVE

CONTROLLER

FRONT PANEL

CONTROLLER

CA/5361

FAULT AND

STATUS RELAYS

DB9 SWITCH FAULTS

x2 DB2 5 ONLINE STATUS

DB9 EIA-485 MODEM REMOTE

16 COAX PRIMARY MODEM IF RX/TX

4 COAX BACKUP MODEM IF RX/TX

TERRESTRIAL

DATA, x8

PRIME POWER IN

BALANCED DATA

DB25

EIA-422

DB15

G.703 V.3 5

DB25

EIA-232-C

DB25

UNBALANCED DATA 5 COAX

D&I G.703 EXTERNAL CLOCK

AUXILIARY DATA

ADPCM

DB9

ESC

DB25

ALARMS

DB25

CA/0755

LOW VOLTAGE

POWER

LOW VO LTAGE

POWER

BOP

DATA SWITCH UNIT

Figure 1-2. Block Diagram

IBS/IDR

EIA-485

FAULTS

SLAVE

CONTROLLER

DATA SWITCH

M:N x8

x8 DB5 0 PRIMARY MODEM DATA RX/TX

x2 DB5 0 BACKUP MODEM DATA RX/TX

Rev. 3 1–7

Introduction SMS-7000 Modem Protection Switch

1.2.1 Switch Controller Unit (SCU)

The SCU is a one unit (1U), 19-inch (48.26 cm) rack-mounted chassis that provides the configuration and automatic switching control functions. Rear panel connectors on this chassis provide all user remote control and status interfaces and rack internal control interfaces. The front panel provides local control of the switch.

The SCU front panel (Figure 1-3) provides the user with visual fault and status indicators. The back-lit display and keypad provide the local user control interface. The front panel is a typical Comtech EFData modem front panel status and control interface. The switch front panel supports all functions of the remote port. The user may configure both the switch and associated modems as well as query status and faults.

Note:

The modem control feature is only available with certain modems. Refer to the

compatibility chart (Table 1-3) for specific applications.

Figure 1-3. SCU Front Panel

The SCU rear panel (Figure 1-4) accommodates the user serial command interface for remote configuration and status. These interfaces are also shown in the block diagram (Figure 1-2).

PRIME MOD

J6 J6

STATUS

PRIME MOD

STATUS

DATA SWITCH

INTER FACE

SWITCH FAULTS

MODEM

J2 J1

REMOTE

USER

REMOTE

Figure 1-4. SCU Rear Panel

Prime modulator and demodulator status and switch faults are provided on dedicated I/O connectors. Status and fault conditions are indicated at these connectors by opening and closing relay contacts, which may be used to directly trigger external alarms and indicators. The modem remote port is the control interface to all modems attached to the switch. The Data Switch Interface, which carries control and fault information between the switch chassis and SCU, is also provided.

1–8 Rev. 3

SMS-7000 Modem Protection Switch Introduction

1.2.2 Data Switch Unit (DSU)

The DSU performs terrestrial data switch and breakout panel functions. Enclosed in a shallow 4.5-inch (11.4 cm) deep chassis, the DSU is designed to mount within the rack in several ways. This will accommodate particular rack configurations and user terrestrial cable routing.

The DSU (Figure 1-5) may be equipped with up to eight data switch modules—one per prime modem as required. The modules may be removed and replaced on site, or they can be added later for configuration expansion. In addition to performing prime and backup data switch functions, each module incorporates a configurable breakout panel that steers the desired terrestrial data interfaces to a single modem I/O data connector.

VR .S 32 53

Figure 1-5. DSU/IFU Terrestrial Side

VR .S 32 53

Rev. 3 1–9

Introduction SMS-7000 Modem Protection Switch

The bottom of the DSU encloses two redundant, online-replaceable, low-voltage, power supply modules. The power supply modules service all three chassis and are individually replaceable with no interruption of service.

All terrestrial data connections are located on the data switch module face of the DSU (Figure 1-5). The breakout panel on the face of each data switch module supports a variety of standard data and alarm interfaces. These interfaces support IBS, IDR, D&I, or custom formats.

Ten modem data cable interfaces are located on the opposite face of the DSU (Figure 1-6); one for each of the eight prime and two backup satellite modems. Connectors J11 and J12 provide the interfaces for the SCU and IFU. The line cord receptacles for the redundant power supply modules are located at the upper corners of the unit The springloaded mechanical slide, associated with each supply, must be slid aside to insert the AC line cord. Unless the power cord is disconnected, this slide performs two functions retaining the power cord and preventing the removal of the module.

Figure 1-6. DSU/IFU Modem Side

1–10 Rev. 3

SMS-7000 Modem Protection Switch Introduction

1.2.3 IF Switch Unit (IFU)

All IF switching is performed in the IFU. In a typical application, the IFU is attached to the DSU. If necessary, the unit can be mounted separately and interconnected with an extended length interface cable. This procedure is recommended if mounting multiple switches in the top of a rack or when separate mounting facilitates IF cabling.

The user has access to one downlink and one uplink port for each of the eight channels (Figure 1-5).

Each prime and backup satellite modem in the configuration has an RX and TX coaxial connection to the modem side of the DSU chassis (Figure 1-6).

Rev. 3 1–11

Introduction SMS-7000 Modem Protection Switch

1.3 Specifications

Refer to Table 1-5 for operating specifications of the switch.

Table 1-5. SMS-7000 Specifications

Operation

Number of Service Channels Modular from 1 to 8. Field upgradeable; one data switch

module per channel. Number of Backups 1 or 2. Switching Modes Auto or Manual. Backup Modes Dependent.

Independent (transmit/receive). Modem Priority Programmable: high, medium, or low. Configuration Control: Remot e (programmable):

Type

EIA-485/232 with provisions for future support of standard

network interfaces.

Rate

Local

Control: Front Panel

Remote Front Panel LEDs:

Switch Status

Switch Fault

Modem Fault

Monitors:

Modulator Online Status

Demodulator Online Status

Switch Faults

110 to 19200 baud.

Menu-driven from the switch front panel, for both the switch

and the modems.

I/O Interfaces

Back-lit LCD display and keypad.

9-pin female D.

Power On.

Auto.

Manual.

System.

Equipment.

Stored.

Transmit.

Receive.

FORM-C relay outputs, 25-pin female D.

FORM-C relay outputs, 9-pin female D.

1–12 Rev. 3

SMS-7000 Modem Protection Switch Introduction

Table 1-5. SMS-7000 Specifications (Continued)

I/O Interfaces

Terrestrial Data (Each channel)

IF Ports 10 each IF Modulation: BNC.

IF Downlinks: up to 8.

Prime Power 90 to 264 VAC; 47 to 63 Hz, 40W max.

Size and Weight:

Control Unit

V.35 Data: 25-pin female D.

EIA-422/MIL-STD-188 Data: 37-pin female D.

G.703 Balanced Drop and Insert: 15-pin female D.

G.703 Unbalanced Drop and Insert: Coax.

EIA-232 Data: 25-pin female D.

ADPCM Audio Data: 9-pin female D.

Engineering Data Channel: 25-pin female D.

Alarms: 25-pin female D.

External Reference Clock: BNC.

10 each IF Demodulation: BNC.

8 each Uplinks: BNC.

8 each Downlinks: BNC.

Uplinks: up to 8.

Frequency response: 50 to 180 MHz.

Return loss: 18 dB.

Impedance: 75Ω or 50Ω (optional).

Isolation: 60 dB.

Transmit loss: < 1.5 dB.

Receive loss: < 5.0 dB.

General

-48 VDC; 40W max. optional.

1U 19-inch (48.3 cm) rack mount by 20-inch (51 cm) deep,

< 10 lbs. (4.5 kg).

Switch Unit with IF Switch

Mounting Top Mount.

Temperature:

Operating

Storage Humidity EMI CE-Mark certified.

8U 19-inch (48.3 cm) rack mount by approx. 4.5-inch deep (11 cm), < 20 lbs. (9.1 kg).

Back Mount (Hinged).

0° to +40ºC (32° to 100°F).

-50° to +100ºC (-58° to 212°F). 95% at +40ºC (100°F), non-condensing.

Rev. 3 1–13

Introduction SMS-7000 Modem Protection Switch

This page is intentionally left blank.

1–14 Rev. 3

This chapter provides instructions for unpacking and installation, as well as external connection information for the switch.

2.1 Unpacking

The switch (which consists of three sections) and the manual are packaged in preformed, reusable, cardboard cartons that contain foam spacing for maximum shipping protection.

Do not use any cutting tool that will extend more than 1 inch (2.5 cm) into the container and cause damage to the switch.

CAUTION

Chapter 2.

INSTALLATION

To remove the switch:

1. Cut the tape at the top of the carton (indicated by OPEN THIS END).

2. Remove the cardboard/foam packing covering the switch.

3. Remove the switch components, product manual, and power cords from the carton.

4. Save the packing material for storage or reshipment purposes.

5. Inspect the equipment for any possible damage incurred during shipment.

6. Check the equipment against the packing list to ensure the shipment is correct.

Rev. 3 2–1

Installation SMS-7000 Modem Protection Switch

2.2 Equipment Inspection

2.2.1 Included Parts

A typical switch contains the following components:

Note:

Parts are not drawn to scale.

Qty Description Qty Description

1 SMS-7000 Switch 1 Installation and Operation Manual

1 Cable Assembly, 37-Pin

Comtech EFData Part # PL/5361X

1 Cable Assembly, 15-pin M-15 pin

Comtech EFData Part No. CA/5343-X

1 Envelope containing the test data

2–2 Rev. 3

SMS-7000 Modem Protection Switch Installation

2.2.2 Back Mount (Hinged) Hardware Kit

1 Back Mount (Hinged) Hardware Kit (Comtech EFData Part # KT/5274), which includes:

Qty Description Qty Description

1 Base Hinge

8 10-32 x 1/2 Socket Head Cap Screws

Comtech EFData Part # FP/5151

1 Plate, Hinge Mounting

Comtech EFData Part # FP/5152-1

1 Plate, Hinge Mounting

Comtech EFData Part # FP/5152-2

1 Panel, Hinge Latch

Comtech EFData Part # FP/5153

2 Plate, Latch Striker

Comtech EFData Part # HW/10-32X1/2SH

8 #10 Flat Washer

Comtech EFData HW/10-FLT

10-32 x 3/8 Phillips Screw

Comtech EFData Part # HW/10-32X3/8 P.H.

2 Latch, Slam, 1/4 Turn, Black Knob

Comtech EFData Part # LATCH04

4 Spacer, 0.380 ID x 0.062 Thick, Fiber

Comtech EFData Part # 5154

1 Back Mount (Hinged) Hardware Kit (Comtech EFData Part # KT/5274), which includes:

Qty Description Qty Description

4 1/4-20 x 1/4 Socket Head Shoulder Screw

Comtech EFData Part #HW/1/420X1/4SHSS

Rev. 3 2–3

Comtech EFData Part # SPC380F062

Installation SMS-7000 Modem Protection Switch

2.2.3 Top Mount Hardware Kit

1 Top Mounting Hardware Kit (Comtech EFData Part # KT/5275), which includes:

Qty Description Qty Description

2 Bracket, Rack Mounted IF Chassis

Comtech EFData Part # FP/5272

2 Bracket, Rack Mounted Switch

Chassis

4-40 x 3/8 Phillips Head Screw

Comtech EFData Part # HW/440X3/8P.H.

4 #10 Flat Washers

Comtech EFData Part # HW/10-FLT

Comtech EFData Part # FP/5273

10-32 x 3/8 Phillips Head Screw

Comtech EFData Part # HW/1032X3/8P.H.

6 #4 Flat Washers

Comtech EFData Part # HW/4-FLT

2–4 Rev. 3

SMS-7000 Modem Protection Switch Installation

2.2.4 Cables

Notes:

1. The following QTY represents the minimum number of cables. Addition prime and backup modems will require additional cables.

2. Contact Comtech EFData Sales department for information regrading the price and availability of the cables.

1 Required cables for rack installation, include:

Qty Description Qty Description

1 Cable Assembly, Control,

w/Termination

2 Cable Assembly, 50-pin DSB (M to M)

Comtech EFData Part # CA/0755

4 Cable Assembly, IF BNC

Comtech EFData Part # CA/0813-X

Comtech EFData Part # CA/0737–X

Rev. 3 2–5

Installation SMS-7000 Modem Protection Switch

2.2.5 Tools Required

Qty Description

3/8 inch (9 mm) drive ra tc he t.

3 x 3/8 inch (76 x 9 mm ) drive extension.

1/2 x 3/8 inch drive socke t.

6 pt.)

3/8 x 3/8 inch drive socke t.

9mm, 6 pt.)

1/4 x 3/8 inch drive socke t.

6mm, 6 pt.)

1 1/2 inch combination wrench.

13mm combination wrench with a 6 pt. box e nd.)

(Metric equivalent: 13mm,

(Metric equivalent:

2–6 Rev. 3

SMS-7000 Modem Protection Switch Installation

2.3 Mounting

Prior to installing the switch in the customer equipment rack, an appropriate mounting configuration must be defined. The switch components are designed for a variety of mounting options to accommodate different user requirements.

The Switch Control Unit (SCU) chassis is a one unit (1U), 19-inch (48.3 cm) rackmountable unit intended for mounting at eye level in the front of the rack. The keypad and display on the front panel of the SCU provide single-point control for all modems associated with the switch, as well as for the switch.

The Data Switch Unit (DSU) and IF Unit (IFU) chassis may be mounted in various ways. User application requirements determine which rack mounting option is used. The two basic mounting locations are:

• Top mount

• Back mount

2.3.1 Description

2.3.1.1 Top Mount

This installation is intended for ceiling-routed cables, where terrestrial data harnesses conveniently enter from the top of the rack. Installed on standard 19-inch (48.3 cm) rails through an opening in the top of the rack, with the terrestrial interfaces facing up, this configuration provides direct access to terrestrial data and IF ports at the top of the rack, minimizing cabling within the rack.

2.3.1.2 Back Mount

This installation is intended for configurations where terrestrial data cables enter the top and/or bottom of the rack. A back mount (hinge) kit is used to facilitate installation and service access. The DSU and IFU are mounted directly inside the rear door of the rack. The hinged switch chassis, when pitched out at the rear of the rack, provides access to both the rear of the front panel-mounted equipment and the inside face of the switch.

Rev. 3 2–7

Installation SMS-7000 Modem Protection Switch

2.3.2 Installation

2.3.2.1 Switch Control Unit

The Switch Control Unit (SCU) arrives fully assembled from the factory. After unpacking the switch, install the switch control unit into the equipment rack and secure with customer-furnished hardware.

2.3.2.2 Top Mount Installation

The Top Mount Hardware Kit (KT/5275) is for fixed-mounting the Data Switch Unit (DSU) and Intermediate Frequency Switch Unit (IFU) to a standard equipment rack rails. Kit components are listed in Section 2.2.

Although top mounting can be employed wherever there is clearance within the rack, it provides a convenient external rack interface for both terrestrial data and IF signals that are routed from the ceiling.

Assemble the DSU and IFU as shown in Figure 2-1 and as follows:

1. Install Bracket (FP/5272) on the IFU and secure with 6 screws and flat washers.

2. Install Bracket (FP/5273) onto the DSU and secure with 8 screws and flat washers.

3. Position unit into the rack and secure with customer-furnished hardware.

2–8 Rev. 3

SMS-7000 Modem Protection Switch Installation

Figure 2-1. Top Mount Installation

Rev. 3 2–9

Installation SMS-7000 Modem Protection Switch

2.3.2.3 Back Mount Installation

The back mount (hinge) feature provides ready access for installation and service, while making efficient use of rack volume. The Back-Mount Hardware Kit (KT/5274) is intended for (but not restricted to) use in rear-mount applications where clearance and access might create difficulty. Kit components are listed in Section 2.2.

The DSU and IFU must be secured prior to installation into the equipment rack. The hinge is mounted to the attached base plate of the DSU). The latch plates are mounted to the attached base plate. The DSU can be directly mounted behind the SCU and the prime, and backup modems that it services.

Note:

This mounting requires the use of right-angle backshells for both the modem and

terrestrial data cables.

Assemble the DSU and IFU as shown in and as follows:

1. Position IFU on DSU and secure with four Phillips screws.

2. Install the Top Plate (FP/5153) to the IFU and secure with four 1/2-inch socket screws and flat washers.

3. Install plates (FP/5154) to the equipment rack at the level to connect to the top plate and secure with customer-furnished hardware.

4. Install base plate to the DSU and secure with four 1/2-inch socket screws and flat washers.

5. Install right Plate (FP/5152-1) to the base plate and secure with two socket screws and spacers.

6. Install left Plate (FP/5152-2) to the base plate and secure with two socket screws and spacers.

7. Install the assembled DSU and IFU to the equipment rack and secure with customer-furnished hardware.

2–10 Rev. 3

SMS-7000 Modem Protection Switch Installation

Figure 2-2. Back Mount (Hinge) Installation

Rev. 3 2–11

Installation SMS-7000 Modem Protection Switch

Figure 2-3. Hinge Mount, Side View

Figure 2-4. Hinge Mount, Top View

2–12 Rev. 3

SMS-7000 Modem Protection Switch Installation

2.4 Cable Installation

2.4.1 Interconnecting the Switch Components

Refer to

Error! Reference source not found.

for typical cable installation.

The equipment rack is a mixed rack consisting of a SDM-6000 Satellite Modem serving as the prime and a SDM-300 Satellite Modem incorporating the 50-pin data interface, serving as the backup modem.

The SMS-7000 Switch is provided with two cables. All other cables are optional and the customer should contact Comtech EFData Customer Support for price and availability.

Rev. 3 2–13

Installation SMS-7000 Modem Protection Switch

(CA/5361)

(CA/5343)

SMS-7000 DSU/IFU Modem Side

TX Output

J6 Remo te

CP20

CP19CP17

ADAPTIVE BROADBAND

(CA/0813-8)

CP18

(CA/0813-8)

TX/IFOUTPUT

CP1

TX Output

J6 Remote

SDM-8000 PRIME #1

SDM-8000 PRIME #2

TX Output

J6 Remo te

SDM-8000 PRIME #3

TX/IF O u tput

CP3 CP1CP2

EXRE F RX/IF INPU T

J10

ALARMS

AUX1

J6 Remo te

FAULT

REMOTE

SDM-300, 50 pin D Connector, Backup Modem

ADAPTIVE BROADBAND

J6 J6 J4 J3 J2 J1

SMS-7000 SCU Rear Panel

Figure 2-5. Typical Switch Installation

2–14 Rev. 3

SMS-7000 Modem Protection Switch Installation

2.4.1.1 SCU (J4) to DSU (J11) Interface

Refer to Figure 2-5.

Cable Assembly Part No. CA/5361 is provide with the switch. This is a single cable interface between SCU Data Switch Interface J4 connector to the DSU Switch Controller Interface J11 connector. The cable carries modem alarms, power supply faults, the serial command link, and SCU power.

2.4.1.2 Remote Connection

Refer to Figure 2-5.

Option - Cable Assembly Part No. CA/0755 is offered by Comtech EFData. The remote serial interface J6 connector of each modem in the configuration is bussed to the SCU Modem Remote J2 connector.

This cable is a 9-pin D EIA-485 2-wire ribbon cable and must be connected before programming the switch configuration. The cable assembly is configured for:

• Baud Rate: 9.6 to 19.2K

• 7 Information bits

• Parity: Even

• 2 Stop bits

Note:

Ensure the modems are all set to EIA-485 2-wire and that the baud rates match.

The ribbon cable assembly is used to query the configuration of modems, to set the configuration of the backup modem, and to verify the saved configuration of the modems. This data is used by the switch controller to set the position of the relays in the data modules.

Rev. 3 2–15

Installation SMS-7000 Modem Protection Switch

2.4.1.3 DSU (J12) to IFU (J1)

Refer to Figure 2-5.

Cable Assembly Part No. CA/5343 is provided with the switch. This is a single cable interface between the two switching sections, J12 IF Control Interface on the DSU and J1 IF Control Interface on the IFU. The cable carries EIA-485 at 9600 baud, control signals, and power.

2.4.1.4 DSU J9 (BU1) Modem Connector to Backup Modem

Refer to Figure 2-5.

Option – Cable Part No. CA/0737 is offered by Comtech EFData. This 50-pin cable is available in either straight hoods or right angle hoods. Refer to Table 2-1. This cable includes two faults, Mod and Demod, pins 49 and 33. The modems will ground the two pins when a No Fault condition exists. When either a Mod or Demod fault occurs, a line will either Open, with the 50-pin cable pulled Off, or +5 VDC that is allowed from the open collector fault circuit on the modem.

Table 2-1. 50-Pin Cable

Part No. Length, ft Type

CA/0737-2 2 Straight CA/0737-4 4 Straight CA/0737-4R 4 Right Angle CA/0737-6 6 Straight CA/0737-6R 6 Right Angle CA/0737-8 8 Straight CA/0737-8R 8 Right Angle CA/0737-10 10 Straight

2.4.1.5 DSU JI CH to Prime Modem

Refer to Figure 2-5.

Option – Cable Part No. CA/0737 is offered by Comtech EFData.

2–16 Rev. 3

SMS-7000 Modem Protection Switch Installation

2.4.1.6 IFU Connections (CP17 through CP36)

Refer to Figure 2-5.

Option – Cable CA/0813-8 is offered by Comtech EFData. Each prime and backup modem in the configuration has an RX and TX coaxial connection to the modem face of the IFU chassis. The switch and modems should have compatible characteristic IF impedances of either 75Ω or 50Ω. Miniature coax is recommended to facilitate harnessing.

2.5 Configuration Setup

This procedure will apply to the SDM-300, and current versions of the SDM-6000 and SDM-8000 modems.

Note:

Communications shall be established between the switch controller and the modems. No visual activity will occur, however, relays may click and fault lamps may come on. Use UTILITY/MODEM CONTROL to take command of the operation.

2.5.1 Configure Rack Setup

Note:

The EIA-485 bus on the ribbon cable will be frozen if any communications are set to EIA-232.

1. Check each modem for the following:

a. Remote Baud Rate: 9.6 or 19.2 kbit/s b. Ribbon Cable: EIA-485 (2- or 4-wire) c. Remote Address: Note

2. Check IF switch for the following:

a. Modem Remote Baud Rate: 9.6 or 19.2 kbit/s b. Remote Address: Config the prime and backup modem to match.

Rev. 3 2–17

Installation SMS-7000 Modem Protection Switch

3. Configure the switch controller, prime, and backup modems as follows:

a. Go to CONFIG/BACKUP #1 and insert all parameters.

Notes:

• DEPENDENT switching is preferred and it is the only function to

operate in the Drop and Insert application.

• The screen showing underlines will have to be filled in for the specific

modems that are to be backed up.

• If a modem in the switch is required, but not to be backed up, then leave

field blank.

• Turn MOD and DEMOD off on each prime modem, if the back up

modem is not to emulate the prime modem. The switch controller will ignore the faults from the modem.

b. Configure the prime modems.

c. If Drop and Insert is the applications, then use Insert Clock as the RX Buffer.

Select LOOP that states; INSERT DATA INPUT LOOP or NORMAL. Balance is for G.703 data cables that have different pairs.

d. Set LOAD ALL MODEMS. Fault lamps should go off.

4. Set switch mode from OPERATION to AUTO.

5. Backup modem should go into REMOTE.

6. Set switch screen to SYSTEM STATUS/SWITCHING.

7. Test the configured protection system as follows:

a. Crisscross the IF inputs on two prime modems.

b. Ensure the two modems transfer data to each other in the protection system.

c. Turn off the SDM-7000 switch to change data modules. If not, re-

initialization of the switch controller may result.

2–18 Rev. 3

SMS-7000 Modem Protection Switch Installation

2.5.2 Trouble Shoot Configuration

Refer to Table 2-2 for trouble shooting information.

Table 2-2. Trouble Shooting

Problem Possible Cause Remedy

Load comes up with a MOD or DEMOD configuration error.

A flashing number and the letter ‘F’ appears.

1. Switch controller not communicating to the modems.

2. Backup modem cannot match all the commands as the prime mode.

Reporting an open cable and is reporting a fault.

Switch controller will query the modems with a MCP and DCP command. Data will be stored and compared with backup modem. If no match, perform the following:

1. Rack contains mixed modems. One modem is high power and one is normal power out. Set modems to

–5 dBm .

≤

2. Software version numbers are not compatible. Upgrade the firmware as necessary.

3. SDM-8000 is emulating an SDM-6000 and SDM-300 emulating an SDM-6000. Reconfigure rack with specific modems. (SDM-8000 will backup an SDM-6000, and the SDM-300 will backup SDM-300 modem.)

4. Ensure communications to the modem are operational.

Backup modem will indicate a ‘B’ and either a –, *, or ↑.

The – indicates; Backup modem is ready to take command for a specific modem. The * indicates; Backup modem is undergoing remote configuration. The ↑ indicates; Backup modem has taken command for a specific prime mode.

Rev. 3 2–19

Installation SMS-7000 Modem Protection Switch

2.6 DSU Data Connections (J1 through J10)

There are 10 data cables between the modem face of the DSU and 10 possible modems associated with the switch. Each of the eight prime modems has an associated data cable connector, CH1 through CH8 (J1 through J8). The two backup modems are connected with data cables to BU1 and BU2 (J9 and J10). The cable terminations are 50-pin male D connectors. The signal/pin assignments, as they occur for each data configuration, are listed in Table 2-3.

Table 2-3. DSU Data Connections (J1 through J10)

Signal Name

Overhead Type SDM-100 and No Overhead

Pin # IBS IDR D&I EIA-422 V.35 EIA-232

1 GND GND GND GND GND GND 2 GND GND GND 3 AGC-OUT AGC-OUT AGC-OUT 4 TXD-B 8K-TXO-A 5 TXD-A 8K-TXO-B 6 RXD-B 8K-RXO-A 7 RXD-A 8K-RXO-B 8 RS422RXO-A BWO1-C 9 RS422RXO-B BWO2-C 10 PRI-COM BWO3-C 11 SEC-COM BWO4-C 12 SCTE/TT-A BWI-1 TT-A SCTE-A TT 13 SCTE/TT-B BWI-2 TT-B SCTE-B 14 RS422TXO-A BWI-3 15 RS422TXO-B BWI-4 16 DF-COM 17 DMA 18 G703_SDB SD-B DDI-B 19 EXC-B EXC-B EXC_B EXC-B EXC-B 20 G703_RDB RD-B IDO-B 21 SCT/ST-A 8K-TXC-A ST-A SCT A ST 22 SCT/ST-B 8K-TXC-B ST-B SCT B

2–20 Rev. 3

SMS-7000 Modem Protection Switch Installation

Table 2–3. DSU Data Connections (J1 through J10) (Continued)

Signal Name

Overhead Type SDM-100 and No Overhead

Pin # IBS IDR D&I EIA-422 V.35 EIA-232

23 SCR/RT-A 8K-RXC-A RT-A SCRA RT 24 SCR/RT-B 8K-RXC-B RT-B SCRB 25 TXCK BWO1-NC 26 RXCK BWO2-NC 27 PRI-NC BWO3-NC 28 SEC-NC BWO4-NC 29 RTS-B A1I-B RTS-B 30 RR-B A1O-B RR-B 31 CTS-B A2I-B CTS-B 32 DM-B A2O-B DM-B 33 DMD-FLT DMD-FLT DMD-FLT 34 G703_SDA SD-A DDI-A 35 EXC-A EXC-A EXC_A EXC-A EXC-A EXT CLK 36 G703_RDA RD-A IDO-A 37 SD-A 8K-TXD-A DDO-A SDA SD-A SD 38 SD-B 8K-TXD-B DDO-B SDB SD-B 39 RD-A 8K-RXD-A IDI-A RDA RD-A RD 40 RD-B 8K-RXD-B IDI-B RD-B RD-B 41 DSR/DM-A BWO1-NO 42 BWO2-NO 43 PRI-NO BWO3-NO 44 SEC-NO BWO4-NO 45 RTS-A A1I-A RTS-A RTS RTS 46 RLSD/RR-A A1O-A RR-A RLSD RR 47 CTS-A A2I-A CTS-A CTS CTS 48 DSR/DM-A A2O-A DM-A DSR DM 49 MOD-FLT MOD-FLT MOD-FLT 50 DF-NO

Rev. 3 2–21

Installation SMS-7000 Modem Protection Switch

2.6.1 SCU Rear Panel

Refer to

Error! Reference source not found.

Figure 2-6. SCU Rear Panel

2.6.1.1 User Remote (J1)

This port is connected to a control device, such as a terminal or personal computer. The control device then communicates with the switch and associated modems using the protocol defined in Appendix A. The user remote interface can be an EIA-485 or EIA232, 110 to 19200 baud. The connector is a 9-pin female D with the pinouts as shown in Table 2-4.

Table 2-4. User Remote EIA-485/EIA-232 Connector (J1)

Pin # 4-Wire 2-Wire

1 GND GND GND 2RD 3TD 4 +TX +RX/TX 5 -TX -RX/TX GND 6DSR 7RTS 8 +RX +RX/TX CTS 9-RX -RX/TX

EIA-485 EIA-232

2–22 Rev. 3

SMS-7000 Modem Protection Switch Installation

2.6.1.2 Modem Remote (J2)

The modem remote interface is a 2-wire EIA-485, 9600, or 19200 baud. The connector is a 9-pin female D, with the pinouts as shown in Table 2-5.

Table 2-5. Modem Remote EIA-485 Connector (J2)

Pin # Signal Name

1GND 2 Unused 3 Unused 4+RX/TX 5-RX/TX 6 Unused 7 Unused 8+RX/TX 9-RX/TX

2.6.1.3 Switch Faults (J3)

Switch fault outputs on this connector are provided by Form C relay contacts for status monitoring.

• Controller Fault is indicated by a Common-to-Normally Closed contact closure, activated if the controller loses power.

• M:N faults are indicated by a Common-to-Normally Open contact closure, activated in the event of any fault registered in the Fault Alarm Menus.

Maximum relay contact current is 1A at 30 VDC.

The connector is a 9-pin female D with the pinouts as shown in Table 2-6.

Table 2-6. Switch Faults Connector (J3)

Pin # Signal Name

1 Controller Fault NO 2 Controller Fault COM 3 Controller Fault NC 4 M:N Fault NO 5 M:N Fault COM 6 M:N Fault NC 7 Spare 2 NO 8 Spare 2 COM 9 Spare 2 NC

Rev. 3 2–23

Installation SMS-7000 Modem Protection Switch

2.6.1.4 Prime Mod (Online) Status (J6)

The prime mod (online) status to user connector provides Form C relay contact outputs for status monitoring. Online is indicated by a Common-to-Normally-Closed contact closure. Maximum current is 1A at 30 VDC.

The connector is a 25-pin female D with the pinouts as shown in Table 2-7.

Table 2-7. Prime Mod Online Connector (J6)

Pin # Signal Name

1 MOD 1 COM 2 MOD 1 NC 3 MOD 1 NO 4 MOD 2 COM 5 MOD 2 NC 6 MOD 2 NO 7 MOD 3 COM 8 MOD 3 NC

9 MOD 3 NO 10 MOD 4 COM 11 MOD 4 NC 12 MOD 4 NO 13 MOD 5 COM 14 MOD 5 NC 15 MOD 5 NO 16 MOD 6 COM 17 MOD 6 NC 18 MOD 6 NO 19 MOD 7 COM 20 MOD 7 NC 21 MOD 7 NO 22 MOD 8 COM 23 MOD 8 NC 24 MOD 8 NO 25 SIGNAL GND

2–24 Rev. 3

SMS-7000 Modem Protection Switch Installation

2.6.1.5 Prime Mod (Online) Status (J5)

The prime mod (online) status to user connector provides Form C relay contact outputs for status monitoring. Online is indicated by a Common-to-Normally Closed contact closure. Maximum current is 1A at 30 VDC.

The connector is a 25-pin female D with the pinouts as shown in Table 2-8.

Table 2-8. Prime Demod Online Connector (J5)

Pin # Signal Name

1DMD 1 COM

2DMD 1 NC

3DMD 1 NO

4DMD 2 COM

5DMD 2 NC

6DMD 2 NO

7DMD 3 COM

8DMD 3 NC

9DMD 3 NO 10 DMD 4 COM 11 DMD 4 NC 12 DMD 4 NO 13 DMD 5 COM 14 DMD 5 NC 15 DMD 5 NO 16 DMD 6 COM 17 DMD 6 NC 18 DMD 6 NO 19 DMD 7 COM 20 DMD 7 COM 21 DMD 7 NO 22 DMD 8 COM 23 DMD 8 NC 24 DMD 8 NO 25 SIGNAL GND

Rev. 3 2–25

Installation SMS-7000 Modem Protection Switch

2.6.2 DSU Terrestrial Data Interfaces

Refer to Figure 2-7.

Up to eight switch modules support the following terrestrial data interfaces.

VR .S 32 53

Figure 2-7. DSU/IFU Terrestrial Side

VR .S 32 53

2–26 Rev. 3

SMS-7000 Modem Protection Switch Installation

2.6.2.1 EIA-422/8 kbit/s Terrestrial Data (J6)

This data port is used for IBS-422 terrestrial data or IDR 8 kbit/s terrestrial overhead data. The connector is a 37-pin female D, with one connector per channel (Table 2-9).

When using this port for IBS or no overhead data, be certain there is no connection to the J1 (V.35) or J3 (G.703) ports. When using EIA-422 data,

CAUTION

all data switch modules must have jumper JP1 in EIA-422 position (with jumpers connecting the middle pin and the pin closest to the front of the switch module).

Table 2-9. EIA-422 Terrestrial Data Connectors (J6)

Signal Name

Pin # IBS IDR D&I

1 SHIELD SHIELD 2 3 RS422 TXO-A 8K TXO A 4 SD A 8K TXD A 5 ST A 8K TXC A 6 RD A 8K RXD A C 7 RTS A RTS A A 8 RT A 8K RXC A B

9 CTS A CTS A L 10 E 11 DM A N/C 12 R 13 RR A N/C E 14 M 15 EXC A 8K RXO A O 16 RS422 RXO A N/C V 17 TT A N/C E 18 D 19 GND GND 20 GND GND 21 RS422 TXO-B 8K TXO B

Rev. 3 2–27

Installation SMS-7000 Modem Protection Switch

Table 2–9. EIA-422 Terrestrial Data Connectors (J6) (Continued)

Signal Name

Pin # IBS IDR D&I

22 SD B 8K TXD B 23 ST B 8K TXC B 24 RD B 8K RXD B 25RTS BRTS BA 26 RT B 8K RXC B L 27 CTS B CTS B 28 29 DM B N/C 30 31 RR B N/C 32 33 EXC B 8K RXO B 34 RS422 RXO B N/C 35 TT B N/C 36 37 GND GND

2–28 Rev. 3

SMS-7000 Modem Protection Switch Installation

2.6.2.2 V.35/EIA-232-C Terrestrial Data (J1)

The V.35 terrestrial data connector (one of three IBS data options) is a 25-pin female D, with one connector per channel (refer to Table 2-10).

When using this port, be certain there is no connection to the J6 (EIA-422) or J3 (G.703) ports. When using EIA-232 data, all data switch modules

CAUTION

Pin # IBS V.35 IDR D&I EIA-232-C

1 SHIELD SHIELD 2SD A SD 3RD A RD 4RTS C C RTS 5CTS A A CTS 6DSR B B DM 7 SIG GND L L SIG GND 8RLSD E E RR

9 SCR B EXT CLK 10 11 SCTE B 12 SCT B R R 13 E E 14 SD B M M 15 SCT A O O ST 16 RD B V V 17 SCR A E E RT 18 D D 19 20 EXC A 21 22 23 EXC B 24 SCTE A (TT) 25 A

must have jumper JP1 in EIA-232 position (with jumpers connecting the middle pin and the pin furthest from the front of the switch module). For V.35, all jumpers must be in EIA-422 position.

Table 2-10. V.35/EIA-232 Terrestrial Data Connectors (J1)

Signal Name

Note:

For all eight switch modules, JP1 must be either set all EIA-232 or all

EIA-422/V.35/G.703 (JP1 set in the EIA-422/V.35/G.703 position works for most applications).

Rev. 3 2–29

Installation SMS-7000 Modem Protection Switch

2.6.2.3 Engineering Service Channel Data (J4)

The engineering service channel data connector is a 25-pin female D for IBS and D&I data service. There is one connector per channel. The pinouts are shown in Table 2-11.

Table 2-11. Engineering Service Channel Data Connectors (J4)

Signal Name

Pin # IBS IDR D&I

1 SHIELD SHIELD 2 TXD A TXD A 3 RXD A RXD A 4 RTS/CTS C RTS/CTS 5 RTS/CTS A RTS/CTS 6 DSR B DSR 7 GND L GND 8E

9 10 11 R 12 E 13 M 14 TXD B O TXD B 15 TXCK V TXCK 16 RXD B E RXD B 17 RXCK D RXCK 18 19 20 EXC A 21 22 23 EXC B 24 SCTE A (TT)

2–30 Rev. 3

SMS-7000 Modem Protection Switch Installation

2.6.2.4 Alarms (J2)

The Alarms (J2) interface accommodates alarms as defined by IBS, IDR, and D&I data formats. A relative demodulator signal strength (AGC_OUT) is also provided on this connector. The alarms connector is a 25-pin female D with one connector per channel. The pinouts are shown in Table 2-12.

Table 2-12. Alarms (J2) Connectors

Signal Name

Pin # IBS IDR D&I

1 N/C N/C N/C 2 N/C BWO1 C N/C 3 N/C BWO1 NC N/C 4 N/C BWO2 NO N/C 5 PROMPT COM BWO3 C PROMPT COM 6 PROMPT NC BWO3 NC PROMPT NC 7 SERVICE NO BWO4 NO SERVICE NO 8 N/C DF COM N/C

9 N/C DMA N/C 10 N/C BWI 2 N/C 11 N/C BWI 4 N/C 12 N/C N/C N/C 13 AGC_OUT AGC_OUT AGC_OUT 14 GND GND GND 15 N/C BWO1 NO N/C 16 N/C BWO2 C N/C 17 N/C BWO2 NC N/C 18 PROMP T NO BWO3 NO PROMPT NO 19 SERVICE COM BWO4 C SERVICE COM 20 SERVICE NC BWO4 NC SERVICE NC 21 N/C DF NO N/C 22 N/C BWI 1 N/C 23 N/C BWI 3 N/C 24 N/C N/C N/C 25 GND GND GND 26 RT B 8K RXC B L 27 CTS B CTS B

Rev. 3 2–31

Installation SMS-7000 Modem Protection Switch

2.6.2.5 ADPCM Audio Data (J5)

The Adaptive Differential Pulse Code Modulation (ADPCM) audio data connector (as defined for the IDR data format) is a 9-pin female D with one connector per channel. The pinouts are shown in Table 2-13.

Table 2-13. ADPCM Audio Data (J5) Connectors

Signal Name

Pin # IBS IDR D&I 64K

1C A1I A C SDA 2O RA1O A O 3 N E GND N E GND 4N MA2I B N MSTB 5 E O A2O_B E O RDB 6C VA1I B C VSDB 7T EA1O B T ERTB 8O DA2I A O DSTA 9R A2O A R RDA

RRTA

2–32 Rev. 3

SMS-7000 Modem Protection Switch Installation

2.6.2.6 Balanced G.703/Drop & Insert Data (J3)

Primary data for IDR and D&I as well as one of three IBS data options (balanced G.703/D&I data connector) is facilitated by using a 15-pin female D with one connector per channel. The pinouts are shown in Table 2-14.

When using this port for other than IDR data, be certain there is no connection to the J6 (EIA-422) or J1 (V.35) ports. When using G.703 data,

CAUTION

Table 2-14. Balanced G.703/Drop & Insert Data Connectors (J3)

all data switch modules must have jumper JP1 in EIA-422 position (with jumpers connecting the middle pin and the pin closest to the front of the switch module).

Signal Name

Pin # IBS IDR D&I

1 SD A SD A DDI-A

2 GND GND GND

3 RD A RD A IDO-A

4 GND GND GND

5 Open Open DDO-B

6 Open Open IDI-B

7 EXC_A EXC_A EXC_A

8 EXC_B EXC_B EXC_B

9 SD B SD B DDI-B 10 Open Open Open 11 RD B RD B IDO-B 12 Open Open DDO-A 13 Open Open IDI-A 14 Open Open Open 15 Open Open Open

Rev. 3 2–33

Installation SMS-7000 Modem Protection Switch

2.6.2.7 Unbalanced Data Ports

Unbalanced data ports on 75Ω BNC coax connectors contain G.703, D&I, and external clock signals. These data ports also facilitate IBS, D&I, or IDR data. When selected from the control panel, the Unbalanced External Clock replaces the external clock signals on J1, J3, and J6. The pinouts are shown in Table 2-15.

When using the G.703 unbalanced data ports for other than IDR data, be certain there is no connection to the J6 (EIA-422) or J1 (V.35) ports. When

CAUTION

using G.703 data, all data switch modules must have jumper JP1 in EIA-422 position (with jumpers connecting the middle pin and the pin closest to the front of the switch module).

Table 2-15. Unbalanced Data Connectors

Signal Name

Pin # IBS IDR D&I

CP1 G.703 SD G.703 SD DDI CP2 G.703 RD G.703 RD IDO CP3 Open Open DDO CP4 Open Open IDI CP5 EXC EXC EXC

2–34 Rev. 3

SMS-7000 Modem Protection Switch Installation

2.6.3 IFU Uplink and Downlink IF (CP1 through CP16)

Each of eight channels has dedicated uplink and downlink ports located on the IFU, as shown in Table 2-16. These ports are BNC female, either 50Ω, or 75Ω, as required.

Table 2-16. IFU Uplink/IF Downlink Data Connectors

Connector

Reference

CP1 CH1 Uplink CP2 CH2 Uplink CP3 CH3 Uplink CP4 CH4 Uplink CP5 CH5 Uplink CP6 CH6 Uplink CP7 CH7 Uplink CP8 CH8 Uplink CP9 CH1 Downlink CP10 CH2 Downlink CP11 CH3 Downlink CP12 CH4 Downlink CP13 CH5 Downlink CP14 CH6 Downlink CP15 CH7 Downlink CP16 CH8 Downlink

Signal

Rev. 3 2–35

Installation SMS-7000 Modem Protection Switch

This page is intentionally left blank.

2–36 Rev. 3

This chapter defines the controls and procedures for configuration and operation of the protection switch.

Note:

Familiarization with the front panel controls (Figure 3-1) and/or the related remote

commands described in Appendix A is recommended.

3.1 Configuration

The configuration of the protection switch may be performed from the front panel, or from a terminal or personal computer connected to the protection switch remote port (J1).

Chapter 3.

OPERATION

Each front panel menu screen has corresponding remote commands. The front panel display menus are designed to guide the operator through the configuration process.

Note:

Refer to the menu tables presented in this chapter for specific configuration

information.

Figure 3-1. SMS-7000 Front Panel View

Rev. 3 3–1

Operation SMS-7000 Modem Protection Switch

3.1.1 Backup Modems

The configuration of the backup modems (1 or 2) is usually performed first. Each backup is defined to switch either independently or dependently, as a function of RX or TX faults in the assigned prime modems.

A set of prime modems can be assigned using the backup configuration menu (refer to Figure 3-3). Individual prime MOD and DEMOD priority and delay options are available when the backup modem is intended to backup the MOD and DEMOD independently. The independent backup will only backup the modems that are selected in the set under the ‘Backup #n Prime Modems’ menu.

3.1.2 Prime Modems

When progressing into the prime modem (1 through 8) configuration menus, two possible menu sets are available: independent or dependent.

• If assigned to a backup designated as independent, the modem configuration

menu set provides for setting the TX and RX parameters independently.

• If assigned to a dependent backup, no distinction is made between RX and TX in

the menu.

3.2 Front Panel

The protection switch front panel (Figure 3-1) provides a local interface to configure, operate, and monitor the switch. For remote control operation information, refer to Appendix A.

The front panel features:

• 48-character, 2-line, back-lit Liquid Crystal Display (LCD).

• 6-key, user friendly keypad that provides a wide variety of functions.

• 8 Light-Emitting Diodes (LEDs) on the front panel to provide overall status at a

glance.

3–2 Rev. 3

SMS-7000 Modem Protection Switch Operation

3.2.1 LED Indicators

The eight LEDs on the front panel indicate the following (see Table 3-1):

Table 3-1. LED Indicators

Name LED Description

Status

Power On Green Indicates that power is applied to the switch. Auto Green Indicates the switch is automatically assigning backup modems. Manual Green Indicates the backup modems are being assigned as d i rected by the user

from the manual menu.

Switch Fault

System Red Indicates a communications failure or a configuration anomaly between

the switch and the attached modems. Specifics are displayed in the Fault/Alarm menu. For example, mixing modems (without paying attention to Table 1-1) in a rack will cause this fault, due to differences in the remote communications commands.

Equipment Red Indicates a communications failure between the switch modules or a

detected fault within the switch hardware. Specifics are displayed in the Fault/Alarm menu. For example, a power supply not plugged in will indicate this fault.

Stored Yellow Indicates that a fault occurrence has been logged and stored. Specifics are

displayed in the Stored Fault/Alarms menu. The fault may or may not be active.

Transmit Yellow Indicates a faulted prime modulator which has not been backed up. The

identity of the faulted modem(s) is displayed in the switch Fault/Alarm menu. Specifics are displayed in the Fault/Alarm menu of the individual modems. This fault clears when the faulted prime is backed up or when the fault is removed.

Receive Yellow Indicates a faulted prime demodulator which has not been backed up. The

Rev. 3 3–3

Operation SMS-7000 Modem Protection Switch

3.2.2 Front Panel Controls

The switch is locally operated by using the front panel keypad, which consists of the following keys (see Table 3-2):

Table 3-2. Front Panel Keypad

Key Description

[ENTER] This key is u sed to select a displayed fun ction, or to execute a change to the

configuration.

[CLEAR] This key is used to back out of a selection, or to cancel a configuration change

which has not been executed by pressing [ENTER]. Pressing [CLEAR] generally returns the display to the previous selection.

[←] and [→]

[↑] and [↓]

These keys are used to move to the next sel ect ion, or to move the cursor for certain functions. These keys are used primarily to change configuration data (numbers), but are al so used at times to move from one section to another.

Whenever a key is pressed, the switch responds with a beep:

• A single beep indicates a valid entry (the appropriate action was taken).

• A double beep indicates an invalid entry.

3–4 Rev. 3

SMS-7000 Modem Protection Switch Operation

3.3 Menu System

Refer to Figure 3-2 through Figure 3-12 to access and execute all functions. Use the main menu in Figure 3-2 as a quick reference for accessing the protection switch functions. Refer to Section 3.2 for further configuration details.

When the protection switch power is turned ON, the base level of the menu system displays the sign-on message:

• Line 1 of the sign-on message is the protection switch model number and type.

• Line 2 is the version number of the firmware.

The main level of the menu system is Function Select. To access this level from the sign-on message, press the [←] or [→] keys. From the Function Select menu, select one of the functional categories:

• Configuration

• System Status

• Faults/Alarms

• Stored Faults/Alarms

• Utility

Press [←] or [→] to move from one selection to another. When line 2 displays the desired function, select that level by pressing [ENTER]. After entering the appropriate functional level, press [←] or [→] to move to the desired function.

To view or change the configuration of the protection switch, enter the Configuration level from the Function Select menu. While in the Configuration menu, press [←] or [→] to scroll through the Configuration menu selection.

Press [ENTER] to select the desired Configuration menu option. To view the options for the selected configuration parameters, press [←] or [→]. To change a configuration parameter, press [ENTER] to begin the change process.

Press [↑] or [↓] to change the parameters. After the correct parameters are displayed, press [ENTER] to execute the change. This action initiates the necessary programming by the protection switch. To undo a parameter change prior to execution, press [CLEAR].

Notes:

1. Figure 3-2 through Figure 3-12 show the front panel menu window selections.

2. Menus or commands that are specific to certain protection switch configurations are only accessible after selecting the appropriate protection switch configuration. This prevents incompatible parameters from accidentally being selected.

Rev. 3 3–5

Operation SMS-7000 Modem Protection Switch

This page is intentionally left blank.

3–6 Rev. 3

SMS-7000 Modem Protection Switch Operation

3.4 Front Panel Menu

SMS-7000 "TYPE"

VER: 2.1.8

FUNCTION SELECT

CONFIGURATION

BACKUP #1 or 2

(Figure 3-3)

CONFIGURATION

INDEPENDENT

PRIME #1 through 8

(Figure 3-4)

CONFIGURATION

DEPENDENT

PRIME # 1 through 8

(Figure 3-5)

CONFIGURATION

LOAD/VERIFY

(Figure 3-6)

CONFIGURATION

OPERATION MODE

(Figure 3-7)

FUNCTION SELECT

SYSTEM STATUS

SWITCHING

(Figure 3-8)

SYSTEM STATUS

CONFIGURATION

(Figure 3-9)

FUNCTION SELECT

FAULTS/ALARMS

(Figure 3-10)

FUNCTION SELECT

STORED FLTS/ALARMS

(Figure 3-11)

FUNCTION SELECT

UTILITY

SYSTEM

(Figure 3-12)

Figure 3-2. Main Menu

Rev. 3 3–7

Operation SMS-7000 Modem Protection Switch

SMS-7000

VER: X.X.X

BACKUP MODEM #n

ADDRESS: xxx

n = 1 or 2 xxx = 0 through 255

BACKUP #n

PRIME MODEMS

n n n n n n n n

Toggling each 'n' digit

assigns or deassigns prime

modems 1-8 respectively.

An '_' is

displayed when not

assigned.

Manual mode only

if 'INDEPENDENT'.

Status window.

FUNCTION SELECT

CONFIGURATION

BACKUP MOD #n BACKUP DEMOD #n

OFF

n = 1 or 2

Manual mode only.

BACKUP #n

MULTIPLEXER

YES/NO n = 1 to 2

If 'YES', M-2000 multiplexer

is attached.

BACKUP #n MULTIPLEXER ADDRESS: nnn

n = 0, 1 or 2

nnn =1 to 255

(0 removes multiplexer

from system)

Displayed only when

M-2000 multiplexer is

attached and selected.

CONFIGURATION

BACKUP #1 AND #2

Manual mode only.

OFF

n = 1 or 2

Key:

ACCESS TO

SUBMENU

BACKUP #n

SWITCHING MODE

INDEPENDENT

DEPENDENT

n = 1 or 2

CONDITIONAL OR

OPTION-DEPENDENT

Parameter Information

Figure 3-3. Configuration Backup 1 and 2 Menu

3–8 Rev. 3

SMS-7000 Modem Protection Switch Operation

3.4.1 Configuration Backup 1 and 2 Menu

Refer to Figure 3-3.

BACKUP MODEM #n ADDRESS

BACKUP MOD #n Turn On or Off the switch to recognize that the Backup modulator

BACKUP DEMOD #n Turn On or Off the switch to recognize that the Backup

BACKUP #n SWITCHING MODE

BACKUP #n PRIME MODEMS

Set # other than 0. Numbers 9 or 10 are recommended when the protection system is full; two backups and eight prime modems. Address: 0 to 255.

Note:

Address 0 is reserved as a global address.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make the selection. Press [ENTER] to execut e the change.

status.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make the selection. Press [ENTER] to execut e the change.

demodulator status.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make the selection. Press [ENTER] to execut e the change. When a failure occurs, DEPENDENT mode switching will place the whole Prime modem to the Backup modem. When a failure occurs, INDEPENDENT switching will only switch half the modem; either the Modulator or the Demodulator.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make the selection. Press [ENTER] to execut e the change. Place the Prime modem numbers in the spaces provided so that the Backup modem will only look to backup the identified prime modems. e.g., 1 _ 3 _ 5 _ _ _. This example displays the Backup modem replacing modem #s 1, 3, and 5.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to

make the selection. Press [ENTER] to execut e the change. BACKUP #n MULTIPLEXER

BACKUP #n MULTIPLEXER ADDRESS

Rev. 3 3–9

Used when the Comtech EFData M-2000 multiplexer is included in

the modem set-up.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to

make the selection. Press [ENTER] to execut e the change.

Display status of multiplexer: ‘YES or NO’.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to

make the selection. Press [ENTER] to execut e the change.

Operation SMS-7000 Modem Protection Switch

SMS-7000

VER: X.X.X

PRIME MODEM #n

ADDRESS: xxx

n = 1 through 8

xxx = 0 through 255

0 removes prime modem

from system.

PRIME DEMOD #n

ON OFF

n = 1 through 8

Manual mode only.

Key:

ACCESS TO

SUBMENU

FUNCTION SELECT

CONFIGURATION

PRIME #n MULTIPLEXER ADDRESS: xxx

n = 1 through 8

xxx = 0 to 255

Displayed only if

'YES' is selected in

the previous window.

CONDITIONAL OR

OPTION-

DEPENDENT

PRIME MOD #n

OFF

n = 1 through 8

Manual mode only.

PRIME DEMOD #n

PRIORITY

HIGH

MEDIUM

LOW

n = 1 through 8

Parameter

Information

CONFIGURATION

INDEPENDENT

PRIME #n

PRIME MOD #n

PRIORITY

HIGH

MEDIUM

LOW

n = 1 through 8

PRIME DEMOD #n

DELAY

NONE AUTO

MANUAL

n = 1 through 8

BREAKOUT #n

D & I

BALANCED

UNBALANCED

PRIME MOD #n

DELAY

NONE

MANUAL

n = 1 through 8

PRIME #n

MULTIPLEXER

YES

n = 1 through 8

If 'YES',

the following selection

will be displayed.

BREAKOUT #n

CONFIGURATION

n = 1 through 8

BREAKOUT #n

EXTERNAL CLOCK

BALANCED

UNBALANCED

BREAKOUT #n

INSERT DATA INPUT

LOOP

NORMAL

Used for tying DDO to

IDI for using insert clock as the buffer

clock source

Figure 3-4. Configuration Independent Prime 1 through 8 Menu

3–10 Rev. 3

SMS-7000 Modem Protection Switch Operation

3.4.2 Configuration Independent Prime 1 through 8 Menu

Refer to Figure 3-4.

PRIME MODEM #n ADDRESS

PRIME MOD #n Must be On for the switch to recognize it as active.

PRIME MOD #n PRIORITY

PRIME MOD #n DELAY NONE

PRIME DEMOD #n Must be On for the switch to recognize it as active.

PRIME DEMOD #n PRIORITY

PRIME DEMOD #n DELAY

Set # other than 0. Address 0 is a global address which is used to communicate with all modems even though the address is set to something else.

Address: 0 to 255

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make the selection. Press [ENTER] to execute the change.

Options: LOW, MEDIUM, and HIGH.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make the selection. Press [ENTER] to execute the change.

MANUAL = 0.5 to 127.0 SEC.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make the selection. Press [ENTER] to execute the change.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make the selection. Press [ENTER] to execute the change. Options: LOW, MEDIUM, and HIGH.

Upon entry, the current status is displayed, Press [↑] or [ ↓] to make the selection. Press [ENTER} to execute the change. NONE AUTO MANUAL = 0.5 to 127.0 SEC.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make

the selection. Press [ENTER] to execute the change. PRIME #n MULTIPLEXER

PRIME DEMOD #n MULTIPLEXER ADDRESS

(Menu applies, only if multiplexer is attached.)

Rev. 3 3–11

Displayed if multiplexer is; ‘YES or NO.’

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make

the selection. Press [ENTER] to execute the change.

Set # other than 0. Address 0 removes the multiplexer from the

system.

Address: 0 to 255

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make

the selection. Press [ENTER] to execute the change.

Operation SMS-7000 Modem Protection Switch

BREAKOUT #n CONFIGURATION D & I Use the BNC connectors for Unbalanced.

EXTERNAL CLOCK Use the BNC connectors for Unbalanced.

INSERT DATA INPUT Options: NORMAL or LOOP

Press [ENTER] to access submenus.

Use the DB15 connecto r for Balanced.

Use the DB15 connecto r for Balanced

Loop will connect DDO to IDI for D & I operation. This allows

operator to select “in sert clock” as the buffer clock source.

3–12 Rev. 3

SMS-7000 Modem Protection Switch Operation

This page is intentionally left blank.

Rev. 3 3–13

Operation SMS-7000 Modem Protection Switch

SMS-7000

VER: X.X.X

PRIME MOD #n PRIME DEMOD #n

OFF

n = 1 through 8

Manual mode only.

PRIME #n

MULTIPLEXER

YES

n = 1 through 8

If 'YES',

the following selection

will be displayed.

FUNCTION SELECT

CONFIGURATION

OFF

n = 1 through 8

Manual mode only.

PRIME #n MULTIPLEXER

ADDRESS: xxx

n = 1 through 8

xxx = 0 to 255

Displayed only if

'YES' is selected in

the previous window.

CONFIGURATION

DEPENDENT

PRIME #n

PRIME MOD #n

PRIORITY

HIGH

MEDIUM

LOW

n = 1 through 8

BREAKOUT #n

D & I

BALANCED

UNBALANCED

PRIME MOD #n

DELAY

NONE AUTO

MANUAL

n = 1 through 8

BREAKOUT #n

CONFIGURATION

n = 1 through 8

BREAKOUT #n

EXTERNAL CLOCK

BALANCED

UNBALANCED

BREAKOUT #n

INSERT DATA INPUT

LOOP

NORMAL

Used for tying DDO to

IDI for using insert clock as the buffer

clock source

Key:

ACCESS TO

SUBMENU

CONDITIONAL OR

OPTION-

DEPENDENT

Parameter

Information

Figure 3-5. Configuration Dependent Prime 1 through 8 Menu

3–14 Rev. 3

SMS-7000 Modem Protection Switch Operation

3.4.3 Configuration Dependent Prime 1 through 8 Menu

Refer to Figure 3-5.

PRIME MODEM #n ADDRESS

PRIME MOD #n Must be On for the switch to recogn i ze as active.

PRIME DEMOD #n Must be On for the switch to recognize as active.

PRIME MODEM #n PRIORITY

PRIME MODEM #n DELAY

PRIME #n MULTIPLEXER Displayed if multiplexer is; ‘YES or NO.’

Set # other than 0. Address 0 is a global address.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make the selection. Press [ENTER] to execute the change.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make the selection. Press [ENTER] to execute the change. Options: LOW, MEDIUM, and HIGH.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make the selection. Press [ENTER] to execute the change. AUTO = 2 times sweep period MANUAL = 0.5 to 127.0 SEC. To switch properly in DEPENDENT mode, the Prime modem demods must have input from a source modem other than their own. Otherwise, when the delay is set to NONE, the switch will oscillate between prime and backup modems. This occurs because the output of the modulator has been interrupted while the whole modem attempts to switch.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make the selection. Press [ENTER] to execute the change.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make

the selection. Press [ENTER] to execute the change. PRIME DEMOD #n MULTIPLEXER ADDRESS

(Menu applies, only if multiplexer is attached.)

BREAKOUT #n CONFIGURATION D & I Use the BNC connectors for Unbalanced.

EXTERNAL CLOCK Use the BNC connectors for Unbalanced.

INSERT DATA INPUT Options: NORMAL/LOOP

Rev. 3 3–15

Set # other than 0. Address 0 removes the multiplexer from the system.

Address: 0 to 255

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make

the selection. Press [ENTER] to execute the change.

Press [ENTER] to access submenus.

Use the DB15 connecto r for Balanced.

Select LOOP if insert clock is sel ected as receive buffer clock source at

the modem. This connects DDO to IDI. (Drop Data Out to Insert Data

In).

Operation SMS-7000 Modem Protection Switch

SMS-7000

VER: X.X.X

LOAD PRIME MODEM

n = 1 through 8 n = 1 through 8

VERIFY BACKUP

MODEM n

n = 1 or 2

FUNCTION SELECT

CONFIGURATION

LOAD BACKUP

MODEM n

n = 1 or 2

VERIFY ALL

MODEMS

PRESS ENTER

TO VERIFY

All backup modems and

Prime modems that are 'active'.

CONFIGURATION

LOAD/VERIFY

LOAD ALL MODEMS

PRESS ENTER

TO LOAD

All Backup modems and

Prime modems that

are 'active'.

VERIFY PRIME

MODEM n

Key:

ACCESS TO

SUBMENU

CONDITIONAL OR

OPTION-

DEPENDENT

Parameter Information

Figure 3-6. Configuration Load/Verify Menu

3–16 Rev. 3

SMS-7000 Modem Protection Switch Operation

3.4.4 Configuration Load/Verify Menu

Refer to Figure 3-6.

LOAD PRIME MODEM n Active modems only (use if configuration changes have

been made for any one prime modem).

LOAD BACKUP MODEM n Active modems only (use if configuration changes have

been made to all prime modems).

LOAD ALL MODEMS Active modems only.

Press [ENTER] twice to load.

VERIFY PRIME MODEM n Active modems only (used to verify that the modem

configuration has not changed). VERIFY BACKUP MODEM n Active modems only. VERIFY ALL MODEMS Active modems only.

Press [ENTER] twice to verify.

Rev. 3 3–17

Operation SMS-7000 Modem Protection Switch

SMS-7000

VER: X.X.X

AUTO MANUAL

AUTO - Allows the

backup modem to replace

the prime modem

automatically.

FUNCTION SELECT

CONFIGURATION

OPERATION MODE

AUTO

MANUAL

MANUAL - Enables submenus for direct control of

Backups # 1 or 2

Independent

BACKUP #1 MOD

BACKUP PRIME

MODEM: n

the protection switch. The submenu displayed

depends on the switiching mode of the current

backup modem (Independent or Dependent).

CONFIGURATION

OPERATION MODE

Backups # 1 or 2

Dependent

BACKUP #1

MODEM, BACKUP

PRIME MODEM: n

n = 0, or 1 to 8

Enter 1 to 8 for online,

0 for off-line.

BACKUP #1 DEMOD

BACKUP PRIME

MODEM: n

n = 0, or 1 to 8

Enter 1 to 8 for online,

0 for off-line.

Key:

ACCESS TO

SUBMENU

n = 0, or 1 to 8

Enter 1 to 8 for online,

0 for off-line.

CONDITIONAL OR

OPTION-

DEPENDENT

Figure 3-7. Configuration Operation Mode Menu

Parameter

Information

3–18 Rev. 3

SMS-7000 Modem Protection Switch Operation

3.4.5 Configuration Operation Mode Menu

Refer to Figure 3-7.

Operation Mode AUTO or MANUAL

If ‘AUTO’, the Backup modem automatically replaces the failed Prime modems. If ‘MANUAL’, a submenu is enabled for direct control of the protection switch. The submenu displayed depends on the switching mode of the current backup modem; i.e., INDEPENDENT or DEPENDENT.

Upon entry, the current status is displayed. Press [↑] or [ ↓] to make the selection. Press [ENTER] to execute the change.

Rev. 3 3–19

Operation SMS-7000 Modem Protection Switch

SMS-7000

VER: X.X.X

FUNCTION SELECT

SYSTEM STATUS

MOD mmmmmmmm Byxn Bzxn

DMD dddddddd Byxn Bzxn

Figure 3-8. System Status Switching Menu

SYSTEM STATUS

SWITCHING

MOD mmmmmmmm

By xxxxx n Bz xxxxx n

Status Window

Key:

ACCESS TO

SUBMENU

CONDITIONAL OR

OPTION-

DEPENDENT

DEMOD dddddddd

By xxxxx n Bz xxxxx n

Status WindowStatus window.

Parameter

Information

3–20 Rev. 3

SMS-7000 Modem Protection Switch Operation

3.4.6 System Status Switching Menu

Refer to Figure 3-8.

MOD mmmmmmmm Byxn Bzx n DMD dddddddd Byxn Bzxn

MOD mmmmmmmm By xxxxx n Bz xxxxx n

DEMOD dddddddd By xxxxx n Bz xxxxx n

Status window. Displays summary of active prime Mods and online backup Mods on Line 1. Displays summary of active prime Demods and online backup Demods on Line 2. If a prime or backup Mod/Demod i s faul t ed, an “F” alternates with Mod/Demod n # on display.

Where:

Mmmmmmmm = 1 thro ugh 8 acti ve prime Mods/D emods . – = Not active. y = 1 backup Mod/Demod. z = 2 backup Mod/Demod. x = – if backup Mod/Demod is not online or HOT STANDBY. x = -> indicates prime Mod/Demod being backed up. x is blinking '–' indicates = transition to HOT STANDBY mode. x is blinking '– >' indicates = Mod/Demod Backup operation in

process. Status window. One location for each acti ve prime. (mmmmmmmm = 1 t hrough 8.) '–' = if inactive. y = 1 backup Mod. z = 2 backup Mod. xxxxx = Condition of backup with respect to channel n: “STDBY” or “BCKUP”. (flashing if in process). n = Channel # for prime modem. Status window. One location for each acti ve prime. (dddddddd =1 through 8.) '–' = if inactive. y = 1 backup Demod. z = 2 backup Demod. xxxxx = Condition of backup with respect to channel n: “STDBY” or “BCKUP”. (flashing if in process). n = Channel #.

Rev. 3 3–21

Operation SMS-7000 Modem Protection Switch

SMS-7000

VER: X.X.X

BU1 ASSGN MOD mmmmmmmm

xxx PRIORITY pppppppp

Status Window

BU2 ASSGN MOD mmmmmmm

xxx PRIORITY pppppppp

Status Window

FUNCTION SELECT

SYSTEM STATUS

SYSTEM STATUS CONFIGURATION

BU1 ASSGN DEMOD mmmmmmmm

xxx PRIORITY pppppppp

Status Window

BU2 ASSGN MODmmmmmmmm

xxx PRIORITY pppppppp

Status Window

Key:

ACCESS TO

SUBMENU

CONDITIONAL OR

OPTION-

DEPENDENT

Parameter Information

Figure 3-9. System Status Configuration Menu

3–22 Rev. 3

SMS-7000 Modem Protection Switch Operation

3.4.7 System Status Configuration Menu

Refer to Figure 3-9.

One of the following four menus sequences will be displayed based on current backup modem switching modes:

1. Configuration: Backup #1 INDEPENDENT and Backup #2 INDEPENDENT

2. Configuration: Backup #1 INDEPENDENT and Backup #2 DEPENDENT

3. Configuration: Backup #1 DEPENDENT and Backup #2 INDEPENDENT

4. Configuration: Backup #1 DEPENDENT and Backup #2 DEPENDENT

BU1 ASSGN MOD mmmmmmmm xxx PRIORITY pppppppp

BU1 ASSGN DEMOD dddddddd xxx PRIORITY pppppppp

BU2 ASSGN MOD mmmmmmmm xxx PRIORITY pppppppp

BU2 ASSGN DEMOD dddddddd xxx PRIORITY pppppppp

Status window Where:

mmmmmmmm = 1 throu gh 8 active prime Mods. '–' = Not active. xxx = IND (Independent)/DEP (Depen dent) active

backup Mod switching mode.

p= Active prime Mod priority.

H = High. M = Medium.

L = Low. Status window. Where:

dddddddd = 1 through 8 active prime Demods. '–' = Not active. xxx = IND (Independent)/DEP (Depen dent) active

backup Demod switching mode.

p= Active prime Demod priority.

H = High.

M = Medium.

L = Low. Status window. Where:

mmmmmmmm = 1 throu gh 8 active prime Mods. '–' = Not active. xxx = IND (Independent)/DEP (Depen dent) active

backup Mod switching mode.

p= Active prime Mod priority.

H = High.

M = Medium.

L = Low. Status window. Where:

dddddddd = 1 through 8 active prime Mods. '–' = Not active. xxx = IND (Independent)/DEP (Depen dent) active

backup Demod switching mode.

p= Active prime Demod priority.

H = High.

M = Medium.

L = Low.

Rev. 3 3–23

Operation SMS-7000 Modem Protection Switch

SMS-7000

VER: X.X.X

TX OPERATIONAL

FAULTS

BACKUP FAULT MOD

#1 through 8

SYSTEM FAULTS

PRIME #n

(n = 1 through 8)

FUNCTION SELECT

FAULTS/ALARMS

RX OPERATIONAL

FAULTS

BACKUP FAULT DEMOD

#1 through 8

EQUIPMENT FAULTS

SYSTEM FAULTS

BACKUP #n

(n = 1 or 2)

BK-UP MODEM COMM FAILURE BMOD CONFIG VERIFY ERROR BDMD CONFIG VERIFY ERROR

NO ADDRESS FOR BK-UP

NO MOD CONFIG LOADED

NO DEMOD CONFIG LOADED

NO PRIMES ASSIGNED

BK-UP MU COMM FAILURE

NO ADDRESS FOR BK-UP MU

(Displayed if multiplexer is attached)

MODEM COMM FAILURE MOD CONFIG VERIFY ERROR DMD CONFIG VERIFY ERROR

NO ADDRESS FOR PRIME

NO MOD CONFIG LOADED

NO DEMOD CONFIG LOADED

PRIME NOT ASSIGNED

PRIME MU COMM FAILURE

NO ADDRESS FOR PRIME MU

(Displayed if multiplexer is attached.)

Figure 3-10. Faults/Alarms Menu

DATA SWITCH MODULE #1 DATA SWITCH MODULE #2 DATA SWITCH MODULE #3 DATA SWITCH MODULE #4 DATA SWITCH MODULE #5 DATA SWITCH MODULE #6 DATA SWITCH MODULE #7 DATA SWITCH MODULE #8

IF SWITCH MODULE POWER SUPPLY 1 FAULT POWER SUPPLY 2 FAULT

NVRAM/CLOCK FAULT

M&C CONTROLLER FAULT

2C BUS FAULT

Key:

ACCESS TO

SUBMENU

CONDITIONAL OR

OPTION-

DEPENDENT

Parameter Information

3–24 Rev. 3

SMS-7000 Modem Protection Switch Operation

3.4.8 Faults/Alarms Menu

Refer to Figure 3-10.

TX OPERATIONAL FAULTS n = prime modulators 1 to 8. If a number is present, the

modulator is active, faulted, and not backed up. Fault indication clears when fault clears, or the pr imary is successfully backed up.

RX OPERATIONAL FAULTS n = prime demodulators 1 to 8. If a number is present, the

modulator is active, faulted, and not backed up. Fault indication

clears when fault clears, or primary is successfully backed u p. SYSTEM FAULTS BACKUP #n (n = 1 or 2)

SYSTEM FAULTS PRIME #n (n = 1 through 8)

EQUIPMENT FAULTS Faults are indicated by the + sign. Scroll to the + sign and ent er

Faults are indicated by a + sign. Scroll to the + sign and press

[ENTER] to see the fault condition.

BK-UP MU COMM FAILURE and NO ADDRESS FOR

BK-UP MU are displayed only when the multiplexer is enabled.

Faults are indicated by a + sign. Scroll to the + sign and press

[ENTER] to see the fault condition.

PRIME MU COMM FAILURE and NO ADDRESS FOR

PRIME MU are displayed only when the multiplexer is enabled.

to see the fault condition:

Note:

Alerts to modem or switch faults are provided in several ways:

1. Indicators on the switch control panel with specifics available in the Faults/Alarms menu.

2. On demand via the switch remote port. Switch and modem fault information is available.

3. Audio and/or visual indicators wired directly to the switch fault and modem status ports on the rear of the SCU.

Rev. 3 3–25

Operation SMS-7000 Modem Protection Switch

SMS-7000

VER: X.X.X

TX OPERATIONAL

FAULTS x

HH:MM:SS MM/DD/YY

BACKUP FAULT MOD #n

(n = 1 through 8)

SYS FAULTS

PRIME #n

HH:MM:SS MM/DD/YY

(n = 1 through 8 )

MODEM COMM FAILURE MOD CONFIG VERIFY ERROR DMD CONFIG VERIFY ERROR

NO ADDRESS FOR PRIME NO MOD CONFIG LOADED

NO DEMOD CONFIG LOADED

PRIME NOT ASSIGNED

PRIME MU COMM FAILURE

NO ADDRESS FOR PRIME MU

(Displayed if multiplexer is attached.)

FUNCTION SELECT

STORED

FAULTS/ALARMS

RX OPERATIONAL

FAULTS x

HH:MM:SS MM/DD/YY

BACKUP FAULTDEMOD#n

(n = 1 through 8)

EQUIPMENT FAULTS

(n = 1 through 8)

DATA SWITCH MODULE #n

IF SWITCH MODULE POWER SUPPLY 1 FAULT POWER SUPPLY 2 FAULT

NVRAM/CLOCK FAULT

M&C CONTROLLER FAULT

12C BUS FAULT

Key:

ACCESS TO

SUBMENU

SYS FAULTS

BACKUP #n x

HH:MM:SS MM/DD/YY

(n = 1 through 8) BK-UP MODEM COMM FAILURE BMOD CONFIG VERIFY ERROR BDMD CONFIG VERIFY ERROR

NO ADDRESS FOR BK-UP

NO MOD CONFIG LOADED

NO DEMOD CONFIG LOADED

NO PRIMES ASSIGNED

BK-UP MU COMM FAILURE

NO ADDRESS FOR BK-UP MU

(Displayed if multiplexer is attached.)

CLEAR ??

STORED FAULTS

CLEAR ??

YES

CONDITIONAL OR

OPTION-

DEPENDENT

Parameter Information

Figure 3-11. Stored Faults/Alarms Menu

3–26 Rev. 3

SMS-7000 Modem Protection Switch Operation

3.4.9 Stored Faults/Alarms Menu

Refer to Figure 3-11.

TX OPE RATIONAL FAULTS x HH:MM:SS MM/DD/YY

RX OPERATIONAL FAULTS x HH:MM:SS MM/DD/YY

SYS FAULTS BACKUP #n HH:MM:SS MM/DD/YY (n = 1 through 8)

SYS FAULTS PRIME #n HH:MM:SS MM/DD/YY (n = 1 through 8)

EQUIPMENT FAULTS x = Number of events (0 to 9), where 0 is oldest. Time and date

CLEAR ?? STORED FAULTS

x = Number of events (0 to 9), where 0 is oldest. Time and date displayed if fault is recorded, otherwise displays “NO FAULT.” Scroll up or down to see number of faults stored, up to 10. Press [ENTER] to see fault. x = Number of events (0 to 9), where 0 is oldest. Time and date displayed if fault is recorded, otherwise displays “NO FAULT.” Scroll up or down to see number of faults stored, up to 10. Press [ENTER] to see fault. x = Number of events (0 to 9), where 0 is oldest. Time and date displayed if fault is recorded, otherwise displays “NO FAULT.” Scroll up or down to see number of faults stored, up to 10. Press [ENTER] to see fault.

BK-UP MU COMM FAILURE AND NO ADDRESS FOR BK-UP MU displayed only if multiplexer is enabled. x = Number of events (0 to 9), where 0 is oldest. Time and date displayed if fault is recorded, otherwise displays “NO FAULT.” Scroll up or down to see number of faults stored, up to 10. Press [ENTER] to see fault.

PRIME MU COMM FAILURE and NO ADDRESS FOR PRIME MU displayed only if multiplexer is enabled.

displayed if fault is recorded, otherwise displays “NO FAULT.” Scroll up or down to see number of faults stored, up to 10. Press [ENTER] to see fault. YES or NO. Press [ENTER] twice to clear stored faults.

Rev. 3 3–27

Operation SMS-7000 Modem Protection Switch

SMS-7000

VER: X.X.X

TIME: HH:MM:SS AM/PM DATE: MM/DD/YY

Status Window

MODEM CONTROL

BAUD RATE

9600 or 19200 (toggle)

Available in Manual Mode only.

DATA MODULE #n FW

FW/nnnnnn-ddr

MM/DD/YY

FUNCTION SELECT

UTILITY

REMOTE BAUD RATE

Baud Rate: 110 1200 19200 150 2400 300 4800 600 9600

Parity: Even, Odd, None

LAMP TEST??? DISPLAY CONTRAST

Press ENTER will test

all LEDs.

UTILITY

SYSTEM

REMOTE ADDRESS

1to 255

0 to 100

REMOTE TYPE

RS-232 RS-485 (2-Wire) RS-485 (4-Wire)

M&C MODULE FW

FW/nnnnnn-ddr

MM/DD/YY

nnnnnn = Firmware #

(0 to 999999)

dd = Firmware dash #

(0 - 99)

r = Firmware revision

(- or A to Z)

n = 1 to 8

nnnnnn = Firmware #

(0 to 999999)

dd = Firmware dash

(0 to 99)

r = Firmware revision

(- or A to Z)

Key:

ACCESS TO

SUBMENU

CONDITIONAL OR

OPTION-

DEPENDENT

Figure 3-12. Utility System Menu

Parameter Information

3–28 Rev. 3

SMS-7000 Modem Protection Switch Operation

3.4.10 Utility System Menu

Refer to Figure 3-12.

TIME: HH:MM:SS AM/PM DATE: MMDDYY REMOTE BAUD RATE nnnnn bit/s parity

REMOTE ADDRESS nnn

REMOTE TYPE type MODEM CONTROL BAUD RATE nnnnn bps LAMP TEST ?? Press [ENTER] to test. DISPLAY CONTRAST LEVEL: nnn

M&C MODULE FIRMWARE FW/nnnnnn-ddr MM/DD/YY DATA MODULE #n FIRMWARE FW/nnnnnn-ddr MM/DD/YY

Scroll left or right and press [↑] or [↓] to set, then press [ENTER].

This is the protocol set-up between the switch and an external terminal. The terminal may or may not be used to control the switch, or to make configuration changes to the modems. Scroll left or right and press [↑] or [↓] to set, then press [ENTER]. Rate Options: 19200, 9600, 4800, 2400, 1200, 600, 300, 150, 110. Parity: EVEN, ODD, or NONE. This is the address (nnn = 1 to 255) of the switch. Scroll left or right and press [↑] or [↓] to set, then press [ENTER].

Note:

Address 0 is reserved for global communications. Scroll left or right, then press [ENTER]. Options: EIA-485 (2- or 4-wire), or EIA-232. Scroll left or right, then press [ENTER]. Options: 9600 or 19.2 kbit/s. Controls the baud rate between the switch and the modems.

Scroll left or right and press [↑] or [↓] to set, then press [ENTER]. nnn = 1 to 100. Changes the darkness of the d i splay characters. Firmware # and date alternate on the display.

Firmware # and date alternate on the display.

Displays “NOT AVAILABLE” if not in system.

Rev. 3 3–29

Operation SMS-7000 Modem Protection Switch

3.5 Setup and Configuration

3.5.1 Utility Setup

Prior to configuration, it may be necessary to modify the following:

• Display Contrast — Adjust for optimum viewing in local ambient lighting

conditions.

• Remote options — If a remote is to be used, appropriate remote options must be

verified or defined from the Utility menus.

• Modem Control Baud Rate — Select the highest common baud rate for the

modems attached to the switch.

3.5.2 Configuration

Once installed, the switch is ready for configuration to the specific application requirements. The switch mode must be in ‘Manual’ to make most configuration changes.

3.5.2.1 Backup

To configure the backup parameters, set the following:

• Address — Enter a unique 3-digit decimal address for remote communications.

• Mod/Demod, ON or OFF — Must be ON for consideration by the switch

algorithm.

• Switching Mode — Select Dependent or Independent RX/TX switching.

• Prime Modems — Enter prime modems to be supported by this backup.

Note:

The system will not allow the same prime modem to be assigned to backups with different switching modes. When pressing [ENTER], the system will beep twice and remove the prime from the backup list. For valid entry, the prime must first be removed from the other backup--or the other backup mode must be changed to agree.

3–30 Rev. 3

Comtech EF Data SMS-7000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Errata A

Errata B

Errata C

Customer Support

Table of Contents

Overview of Changes to Previous Edition

About this Manual

Related Documents

Conventions and References

Reporting Comments or Suggestions Concerning this Manual

EMC Compliance

EN55022 Compliance

Federal Communications Commission (FCC)

Low Voltage Directive (LVD)

Warranty Policy

Limitations of Warranty

Exclusive Remedies

Disclaimer

Part Number Description

1.2.1 Switch Controller Unit (SCU)

1.2.2 Data Switch Unit (DSU)

1.2.3 IF Switch Unit (IFU)

2.2.2 Back Mount (Hinged) Hardware Kit

2.2.3 Top Mount Hardware Kit

Installation SMS-7000 Modem Protection Switch

2.4.1 Interconnecting the Switch Components

2.5.1 Configure Rack Setup

2.5.2 Trouble Shoot Configuration

2.6 DSU Data Connections (J1 through J10)

2.6.1 SCU Rear Panel

2.6.2 DSU Terrestrial Data Interfaces

2.6.3 IFU Uplink and Downlink IF (CP1 through CP16)

3.2.2 Front Panel Controls

3.4 Front Panel Menu

3.4.1 Configuration Backup 1 and 2 Menu

3.4.2 Configuration Independent Prime 1 through 8 Menu

3.4.3 Configuration Dependent Prime 1 through 8 Menu

3.4.4 Configuration Load/Verify Menu

3.4.5 Configuration Operation Mode Menu

3.4.6 System Status Switching Menu

3.4.7 System Status Configuration Menu

3.4.9 Stored Faults/Alarms Menu

3.4.10 Utility System Menu

3.5 Setup and Configuration