Comtech EF Data SMS-301 User Manual

SMS-301
p
Redundancy Switch
Installation and O
Part Number MN/SMS301.IOM Revision 3
eration Manual
Comtech EFData is an ISO 9001
Registered Company.
SMS-301
Redundancy Switch
Installation and Operation Manual
Part Number MN/SMS301.IOM
Revision 3
November 19, 1999
Comtech EFData, 2114 West 7th Street, Tempe, Arizona 85281 USA, (480) 333-2200, FAX: (480) 333-2161.

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
Contact us via the web at www.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. xi.
ii Rev. 3

Table of Contents

CHAPTER 1. INTRODUCTION..................................................................................1–1
1.1 Description............................................................................................................................................... 1–2
1.1.1 Description (Standard Configuration)............................................................................................... 1–2
1.1.2 Description (With RS-301 Option)................................................................................................... 1–3
1.1.3 Board List.......................................................................................................................................... 1–4
1.2 Front Panel.............................................................................................................................................. 1–5
1.3 Specifications........................................................................................................................................... 1–6
CHAPTER 2. INSTALLATION...................................................................................2–1
2.1 Unpacking................................................................................................................................................ 2–1
2.2 System Installation .................................................................................................................................. 2–2
2.3 External Connections.............................................................................................................................. 2–3
2.3.1 Remote Switch Control (J1) (RS-301 Option).................................................................................. 2–5
2.3.2 Data I/O Connections........................................................................................................................ 2–6
2.3.2.1 Data I/O Connector (J1, J2, J3), 50-Pin (PL/5951)....................................................................... 2–6
2.3.2.2 Data I/O Conne ctor (J1 , J2, J3), 37-Pin (PL/5952) ........................................................................ 2–7
2.3.2.3 Data I/O Connector (J1, J2, J3), 25-Pin (PL/6026)....................................................................... 2–8
2.3.2.4 Data I/O (J1, J2, J3) 37-Pin (PL/6201-1) ...................................................................................... 2–9
2.3.2.5 Data I/O Connector (J1, J2, J3) 37-Pin (PL/6201-2)................................................................... 2–10
2.3.2.6 100 Pin interface (RS-301 Option) (PL/6542/PL/6627).............................................................. 2–11
2.3.3 Transmit IF Connectors (J4, J5, J6) ................................................................................................ 2–13
2.3.4 RX IF Connectors (J7, J8, J9)......................................................................................................... 2–13
2.3.5 Remote Control Interface Connector (J10)..................................................................................... 2–14
2.3.6 Prime Power.................................................................................................................................... 2–15
2.3.6.1 AC Power (J11 and J12).............................................................................................................. 2–15
2.3.6.2 DC Power (J11 and J12) (Optional)............................................................................................ 2–15
2.3.7 Switch/Modem Communications Interface Connector (J13).......................................................... 2–16
2.3.8 Status/Fault (J14) ........................................................................................................ .................... 2–17
2.3.9 IF Connections: Transmit and Receive........................................................................................... 2–17
2.3.10 Ground ............................................................................................................................................ 2–17
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Preface SMS-301 Redundancy Switch
CHAPTER 3. OPERATION.........................................................................................3-1
3.1 Configuration ...........................................................................................................................................3-1
3.2 Setup and Configuration ......................................................................................................................... 3-2
3.2.1 Utility System.....................................................................................................................................3-3
3.2.2 Configuration..................................................................................................................................... 3-3
3.2.2.1 Prime..............................................................................................................................................3-3
3.2.2.2 Backup ...........................................................................................................................................3-4
3.2.2.3 Operation Mode ............................................................................................................................. 3-5
3.3 Faults.........................................................................................................................................................3-5
3.4 Front Panel Keypad................................................................................................................................. 3-6
3.5 Menu System ............................................................................................................................................3-7
3.5.1 Front Panel Menus............................................................................................................................. 3-9
3.5.1.1 Configuration Switch Control Menu ....................................................................................... ..... 3-11
3.5.1.2 Configuration System Menu ........................................................................................................ 3-13
3.5.1.3 Configuration Save Menu ............................................................................................................ 3-15
3.5.1.4 Configuration Recall Menu..........................................................................................................3-16
3.5.1.5 Monitor Menu .............................................................................................................................. 3-17
3.5.1.6 Faults/Alarms........................................................................................................... .................... 3-19
3.5.1.7 Stored Faults/Alarms.................................................................................................................... 3-21
3.5.1.8 Utility System...............................................................................................................................3-23
3.5.1.9 Utility Modem Control.................................................................................................................3-27
CHAPTER 4. THEORY OF OPERATION...................................................................4-1
4.1 Monitor and Control (M&C)..................................................................................................................4-1
4.1.1 Theory of Operation ........................................................................................................................... 4-2
4.2 SMS-301 Data Interface .......................................................................................................................... 4-3
4.2.1 IBS, IDR, ASYNC, or D&I (J1, J2, J3), 50-Pin (PL/5951) ............................................................... 4-3
4.2.2 EIA-422/-449, G.703, or V.35 (J1, J2, J3), 37-Pin (PL/5952)...........................................................4-3
4.2.3 LVDS-DVB TX, (J1, J2, J3), 37-Pin, (PL/6201-1)............................................................................ 4-3
4.2.4 EIA-422/DVB TX (J1, J2, J3), 25-Pin (PL/6026)..............................................................................4-4
4.3 Remote Switch (RS-301) Option.............................................................................................................4-5
CHAPTER 5. MAINTENANCE....................................................................................5-1
5.1 Software Revisions...................................................................................................................................5-1
5.2 Test Points and LEDs...............................................................................................................................5-3
5.3 Fault Isolation...........................................................................................................................................5-4
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SMS-301 Redundancy Switch Preface
APPENDIX A. REMOTE CONTROL OPERATION ................................................... A-1
A.1 General.....................................................................................................................................................A-1
A.2 Message Structure...................................................................................................................................A-2
A.2.1 Start Character................................................................................................................................... A-2
A.2.2 Device Address................................................................................................................................. A-3
A.2.3 Command/Response.......................................................................................................................... A-3
A.2.4 End Character.................................................................................................................................... A-4
A.3 Configuration Commands/Responses....................................................................................................A-5
A.4 Modem Communications Configuration Commands/Responses........................................................ A-6
A.5 System Commands/Responses ................................................................................................... ............ A-7
A.6 Status Commands/Responses................................................................................................................. A-8
A.7 Fault Summary Status Commands/Responses..................................................................................... A-9
A.8 Stored Faults.......................................................................................................................................... A-10
APPENDIX B. SDM-300/-300A SYSTEM INSTALLATIONS.................................... B–1
B.1 System Installation..................................................................................................................................B–1
B.1.1 System Installation (Standard Configuration)...................................................................................B–2
B.1.2 System Installation (RS-301 Switch Installed)..................................................................................B–5
B.1.3 Connect System Installation with RS-301 Switch.............................................................................B–6
APPENDIX C SDM-2020 SYSTEM INSTALLATIONS.............................................. C–1
C.1 Installation Options.................................................................................................................................C–1
C.1.1 Connect Low Voltage Differential Signal Interface (Optional) ........................................................C–1
C.1.1.1 Description....................................................................................................................................C–1
C.1.1.2 Connect to SDM-2020 Modulator with LVDS Interface..............................................................C–3
C.1.2 Connect to SDM-2020 Satellite Modulator with EIA-422 Interface.................................................C–4
C.1.2.1 Description....................................................................................................................................C–4
C.1.2.2 Connect to SDM-2020 Modulator with EIA-422 Interface...........................................................C–5
C.1.3 Connect to SDM-2020 Satellite Modulator with EIA-422 DVB TX Interface................................C–6
C.1.3.1 Description....................................................................................................................................C–6
C.1.3.2 Connect to SDM-2020 Modulator with EIA-422 DVB TX Interface ...........................................C–7
C.1.4 Connect to SDM-2020 Satellite Modulator with EIA-422 (DVB) TX Interface (100 Mbit/s) .........C–9
C.1.4.1 Description....................................................................................................................................C–9
C.1.4.2 Connect to SDM-2020 Modulator with EIA-422 DVB TX Interface.........................................C–10
C.1.5 Connect to SDM-2020 Satellite Modulator I/O Connector, 25-Pin Interface.................................C–12
C.1.5.1 Description..................................................................................................................................C–12
C.1.5.2 Connect to SDM-2020 Modulator with I/O Connector, 25-Pin Interface...................................C–12
GLOSSARY ................................................................................................................g–1
INDEX ..........................................................................................................................i–1
Rev. 3 v
Preface SMS-301 Redundancy Switch
Figures
Figure 1-1. SMS-301........................................................................................................................................... 1–1
Figure 1-2. System Block Diagram (Standard Configuration) ............................................................................ 1–2
Figure 1-3. System Block Diagram (With RS-301 Option)................................................................................. 1–3
Figure 2-1. SMS-301 Rear Panel Configurations................................................................................................ 2–3
Figure 3-1. SMS-301 Front Panel View...............................................................................................................3-1
Figure 3-2. Keypad............................................................................................................................................... 3-6
Figure 3-3. Main Menu.........................................................................................................................................3-9
Figure 3-4. Configuration Switch Control Menu................................................................................................3-10
Figure 3-5. Configuration System Menu............................................................................................................ 3-12
Figure 3-6. Configuration Save Menu................................................................................................................ 3-15
Figure 3-7. Configuration Recall Menu..............................................................................................................3-16
Figure 3-8. Monitor Menu.................................................................................................................................. 3-17
Figure 3-9. Faults/Alarms Menu.........................................................................................................................3-18
Figure 3-10. Stored Faults/Alarms Menu...........................................................................................................3-20
Figure 3-11. Utility System Menu...................................................................................................................... 3-22
Figure 3-12. Utility Modem Control Menu........................................................................................................3-26
Figure B-1. System Installation (Standard Configuration)..................................................................................B–3
Figure B-2. System Installation (RS-301 Installed).............................................................................................B–6
Figure C-1. Connect to SDM-2020 Modulator with LVDS Interface.................................................................C–3
Figure C-2. Connect to SDM-2020 Modulator with EIA-422 Interface..............................................................C–5
Figure C-3. Connect to SDM-2020 Modulator with EIA-422 (DVB) TX Interface (18 Mbit/s Serial Data).....C–8
Figure C-4. Connect to SDM-2020 Modulator with EIA-422 (DVB) TX Interface (100 Mbit/s Parallel Data)C–11
Figure C-5. Connect to SDM-2020 Modulator with I/O Connector, 25-Pin Interface......................................C–13
vi Rev. 3
SMS-301 Redundancy Switch Preface
Tables
Table 1-1. Board List 1–4 Table 1-2. LED Status Indictors 1–5 Table 1-3. 1:1 Switch Specifications 1–6 Table 2-1. Rear Panel Connectors (Standard Configuration) 2–4 Table 2-2. Rear Panel Connectors (With RS-301 Option) 2–4 Table 2-3. Switch Control Interface Signals 2–5 Table 2-4. Data I/O Connector, 50-Pin 2–6 Table 2-5. Data I/O Connectors, 37-Pin 2–7 Table 2-6. Connector Assignments , 25-Pi n 2–8 Table 2-7. Connector Assignments , 37-Pi n 2–9 Table 2-8. Connector Assignments , 37-Pi n 2–10 Table 2-9. Data I/O Connector, 100-Pin 2–11 Table 2-10. Remote Control Interface Connector Pinout Data (J10) 2–14 Table 2-11. AC Power (J11 and J12) 2–15 Table 2-12. DC Prime Power (J11 and J12) 2–15 Table 2-13. Switch/Modem Communications Interface Connector (J13) 2–16 Table 2-14. Status/Faults (J14) Pinout Assignments 2–17 Table 3-1. Default Configuration Param eters 3-2 Table 3-2. Keypad Functions 3-6 Table 4-1. Remote Switch (RS-301) Connectors 4-5 Table 4-2. Tributary 1 Data (J1) 4-6 Table 4-3. Tributary 2 Data (J2) 4-6 Table 4-4. Tributary 3 Data (J3) 4-6 Table 4-5. Tributary 4 Data (J4) 4-7 Table 4-6. Tributary 5 Data (J5) 4-7 Table 4-7. Tributary 6 Data (J6) 4-7 Table 4-8. Tributary 7 Data (J7) 4-8 Table 4-9. Tributary 8 Data (J8) 4-8 Table 4-10. AUX Data (J9) 4-8 Table 4-11. Modem A Data (J14) 4-9 Table 4-12. Modem B Data (J15) 4-10 Table 4-13. Switch Control Interface (J16) 4-11 Table 5-1. LED Functions 5-3 Table 5-2. Fault Isolation, 1:1 Switch 5-4 Table B-1. Standard Configuration Cabling B–2 Table B-2. RS-301 Configuration Cabling B–5 Table C-1. LVDS/DVB Specifications C–2 Table C-2. EIA-422/EIA-530 Specifications C–4 Table C-3. EIA-422/EIA-530 Specifications C–6 Table C-4. Cable Pin Assignments (CA/6217) C–7 Table C-5. Cable Pin Assignments (CA/6217) C–10 Table C-6. Pin Assignments, 25-Pin C–12
Rev. 3 vii
Preface SMS-301 Redundancy Switch

Overview of Changes to Previous Edition

This revision supersedes part number MN/SMS301.IOM Rev. 2, dated February 6, 1998
A summary of the changes made for Rev. 3 includes:
Various non-technical cosmetic changes (formatting, etc.).
Add new EMC directive.
Revised Table 1-1 Board List.
Revised Table 1-3 to include Control Box Extender Card Connector.
Revised paragraph 2.2 to relocatecabling instructions to appendices.
Paragraph 2.3, Rearranged section.
Added Standard Configuration to Figure 2-1.
Added Table 2-1 to reflect standard configuration and renumbered Table 2-2 as RS-301 Connectors.
Reidentified paragrapgh 2.3.1 as RS-301 option.
Relocated different installtion options from Section 2 to appendices.
Updated menus to reflect version 1.1.6.
Deleted Sections 4.6 and 4.7. Data relocated to Chapter 2.
Revised Chapter 4, to rearrange data interfaces.
Revised Appendix A to reflect FW/6055-1E.
Added Appendix B to reflect SDM-300/-300A cabling.
Added Appendix C to reflect SDM-2020M cabling.

About this Manual

This manual provides installation and oper at ion info rmation for the Comtech EFData SMS-301 redundancy switch. This is a technical document intended for earth station engineers, technicians, and operators responsible for the operation and maintenance of the SMS-301.

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
WARNING
unsafe practices or risks of property damage.
WARNING indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury.
viii Rev. 3
SMS-301 Redundancy Switch Preface
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.
Trademarks
Other product names mentioned in this manual may be trademarks or registered trademarks of their respective companies and are hereby acknowledged.

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 EN5022.
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.
Rev. 3 ix
Preface SMS-301 Redundancy Switch

Federal Communications Commission (FCC)

This equipment has been tested and found to comply with the limits for a Class A digital device, following 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 communication. 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.
Note:
To ensure compliance, properly shielded cables for DATA I/O shall be used. More specifically, these cables shall be doubled-shielded from end-to-end, ensuring a continuous shield.

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:
Note:
ACHTUNG: Zweipolige bzw. Neutralleiter-Sicherung.
Alternating Current.
Fuse. Safety Ground.
Chassis Ground.
1. Applicable testing is routinely performed as a condition of manufacturing on all units to ensure compliance with requirements of EN60950 for Safety.
x Rev. 3
SMS-301 Redundancy Switch Preface

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 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.
only
for return of the equipment from the factory to

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 repack ag ing 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.
Rev. 3 xi
Preface SMS-301 Redundancy Switch
This page is intentionally blank.
xii Rev. 3
Chapter 1.
INTRODUCTION
1
This manual describes the SMS-301 redundancy switch, referred to in this manual as the “1:1 switch” (Figure 1-1).
Figure 1-1. SMS-301
Rev. 3 1–1
Introduction SMS-301 Redundancy Switch
1.1 Description

1.1.1 Description (Standard Configuration)

The 1:1 switch is a fully automated protection switch for Comtech EFData satellite modems, providing redundancy for one prime modem using one identical backup modem. Common interfaces are provided for user data terminal equipment and uplink/downlink RF equipment, as well as the primary and redundant (backup) modems. The integrated uplink 1:1 switch and downlink splitter operate at IF frequencies in the range of 50 to 180 MHz.
Full Monitor and Control (M&C) functions are supported by an integrated microprocessor system. The M&C system is designated to maintain the 1:1 switch configuration settings in non-volatile memory for at least one year without prime power.
Note:
While 1:1 switch prime power is not applied, the default connections are to
Modem A.
Remote control is provided by an EIA-485 or EIA-232 interface located on the rear panel of the chassis. The rear panel also is the location for all external interconnections. The 1:1 switch is enclosed in a single unit, 19-inch (48.3 cm) rack-mounted chassis. Figure 1-2 illustrates the system block diagram.
TR ANS M IT IF
RECEIVE IF
BASEBAND DATA
TX/RX
SWITCH M&C LOGIC
REMOTE
CONTROL
TR ANS M IT IF
RECEIVE IF
BASEBAND DATA
TX/RX
J9J5J2
SPLITTER
J7J6J3
J1
J8
J4
J10
EIA-232 OR EIA-485
BASEBAND DATA TO/FROM CUSTOMER
RECEIVE IF 50 TO 180 MHz F R O M DOWN CONVERTER
TR ANS M IT IF 50 TO 180 MHz TO U P C O N VE R T E R
HOT TERMINAL OR COMPUTER
J14
MODEM A
1 FOR 1 SWITCH
MODEM REMOTEJ13
EIA-485
STATUS/FAULTS
MODEM A
Figure 1-2. System Block Diagram (Standard Configuration)
1–2 Rev. 3
SMS-301 Redundancy Switch Introduction

1.1.2 Description (With RS-301 Option)

The 1:1 switch, when used with the RS-301 Remote Switch, is a fully-automated protection switch designed for use with the Comtech EFData SDM-300/-300A Satellite Modem that are equipped with the 8-Channel MUX option. It provides redundancy for the one prime modem using identical backup satellite modem. The 1:1 switch provides common interfaces for the RF uplink and downlink equipment. The integrated uplink 1:1 switch and downlink splitter operate at IF frequencies in the range of 50 to 180 MHz.
The RS-301 Remote Switch is a separate 19-inch (48.3 cm) rack-mounted chassis. It is controlled by the 1:1 switch, and provides redundancy for the data interface between the primary modem, backup modem, and customer equipment. The front panel provides convenient access to eight tributary data channels (EIA-232 and EIA-422 clock and data) and one auxiliary data channel. Figure 1-3 illustrates the system block diagram.
Note:
The default connections are to Modem A.
SDM -300 / 300A MODEM A
1 FOR 1 S W ITCH
J13
MODEM REMOTE EIA-485
STATUS FAULTS
J14
SDM -300 / 300A MODEM B
TRANSMIT IF
RE C EIV E IF
BASEBAND DATA
TX/RX
SWITCH
M&C
LOGIC
REMO TE
CONTRO L
J10 J6
TRANSMIT IF
RE C EIV E IF
BASEBAND DATA
TX/RX
J5
J9
SPLITTER
CONTRO L
BUS
EXTENDER
CARD
J7
EIA-232 OR EIA-485
M O DEM A D ATA ( 8 T R IB & A UX )
NOTE: J7, J8, AND J9 AR E N O T US E D.
J8
J1
J4
HO ST T ER MIN AL
OR COMPUTER
M O DEM B D ATA ( 8 T R IB & 1 A U X)
SWITCH
CONTRO L
TRANSMIT IF
50 TO 180 M Hz TO
UP CON VERTER
J16
J14
J1 TR IB 1 DATA
J2 TR IB 2 DATA
J3 TR IB 3 DATA
J4 TR IB 4 DATA
J5 TR IB 5 DATA
J6 TR IB 6 DATA
J7 TR IB 7 DATA
J8 TR IB 8 DATA
J9 AUX DATA
RS-301
REMOTE
SWITCH
J15
Figure 1-3. System Block Diagram (With RS-301 Option)
Rev. 3 1–3
Introduction SMS-301 Redundancy Switch
1.1.3 Board List
The following boards, listed in Table 1-1, can be installed in the SMS-301, depending on the configuration.
Table 1-1. Board List
Board Type Drawing #
M&C, 75 M&C, 50 IBS, IDR, ASYNC, D&I,
50-pin Data, I/O (J1, J2, J3) EIA-422/-449, G.703, V.35, 37-pin Data I/O (J1, J2, J3) LVDS-DVB TX, 37-pin Inter face PL/6201-1 EIA-422/DVB TX, 37-pin Interf a c e PL/6201-2 EIA-232/-422/-530, V.35, G.703 25-pin Data, I/O (J1, J2, J3) 100-Pin Interface (RS-301 only) PL/6592
Ω Ω
PL/5950-1 PL/5950-2 PL/5951
PL/5952
PL/6026
PL/6627
1–4 Rev. 3
SMS-301 Redundancy Switch Introduction
1.2 Front Panel
The front panel of the chassis is a local user interface used for control and status monitoring of the switching system. This local user interface consists of the following:
Keypad
Backlit LED display
LED status indicators (Table 1-2)
Table 1-2. LED Status Indictors
Function Color
Demodulator A O n-Line Green Demodulator B On-Line Gree n Modulator A On-Line Green Modulator B On-Line Green Transmit Fault Red Receive Fault Red System Fault Red Stored Fault Yellow Power Supply 1 Green Power Supply 2 Green Auto Mode Green Manual Mode Yellow
Rev. 3 1–5
Introduction SMS-301 Redundancy Switch
1.3 Specifications
Refer to Table 1-3 for the 1:1 switch specifications.
Table 1-3. 1:1 Switch Specifications
Data Interface Switch:
Modem A, I/O Modem B, I/O
Common, I/O Control Bus Extender Card Connector T ype: 37-pin D-sub (Remote Switch) IF Uplink Switch: Connector type: BNC
IF Downlink Splitter: Connector type: BNC
Local User Interface Front Panel:
Front Panel Status LEDs Oper a tiona l mode:
Connector type: 25-pin D-sub,
37-pin D-sub 50-pin D-sub 100-pin D-sub
Impedance: 75Ω (50Ω optional) Return loss: ≥ 18 dB Switched input to output loss: < 1.5 dB Frequency re spons e : 50 to 180 MHz IF input to input isolation: > 60 dB
Impedance: 75Ω (50Ω optional) Return loss: ≥ 18 dB Splitter loss, input to outputs: < 4.0 dB Output balance: ± 0.5 dB Frequency re spons e : 50 to 180 MHz
Keypad: 6 button (enter, c le a r, le ft, right, up, down arrows)
Display: backlit LC D, 2 lines by 16 characters
Manual (Yellow)
Automatic (Gree n)
Switch faults:
TX (Red)
RX (Red)
System (Red)
Stored (Yellow)
On-line Status:
Modulator A (Gre e n)
Modulator B (Green)
Demodulator A ( Green)
Demodulator B (Green)
On-line/Fault Status Modulator On-line Demodulator On-line Switch Fault Controller Fault Spare Remote Control Interface type: EIA-485/EI A-232 (local selec ta ble)
1–6 Rev. 3
Rear panel, 15-pin D-sub female Form C relay Form C relay Form C relay Form C relay Form C relay
Connector: 9-pin D-sub Protocol: Addressable (s ee r e mote control protocol)
SMS-301 Redundancy Switch Introduction
Table 1-3. 1:1 Switch Specifications (Continued)
Parameters Controlled/Monitored
Configuration Retention Will maintain conf ig uration for at least one y ea r w ithout prime power Switch to Modem Communications
Prime Power 85 to 264 VAC, 47 to 63 Hz, 30W (re dunda nt inputs )
Size 19 W x 15.2 D x 1.75 H inches ( 1 RU )
Weight < 9 lbs (4 kg) Operating Temperature Humidity < 95%, non-condensing EMI CE Mark Certification
Operation mode: Automatic or manual Switching mode : Independent or dependent mod/demod Modulator on-line delay Demodulator on-line de la y Modem on-line: A or B (dependent m ode ) Modulator on-line: A or B (independent mode) Demodulator on-line : A or B (independent mode) Remote config ur a tion (loc a l only): EIA-232 or EIA -485, a ddr e ss , ba ud,
parity, bits per word Remote mode (Sw itc h) Clear stored faults Current faults Stored faults Switch status Firmware Time/date Equipment type Store/recall multiple switc h c onfigurations Remote access to modulator/demodulator s ta t us Modem configur a tion c opy to opposite modem
Interface type: EIA -485 ( 2-wire) Connector: 9-pin D-sub Protocol: Addressable (s e e r e mote control protocol, Appe ndix A)
(Optional)
(48.3 x 39 x 4.4 cm)
0° to 50° C (32° to 122° F)
42 to 56 VDC, 40W (redundant inputs)
Rev. 3 1–7
Introduction SMS-301 Redundancy Switch
This page is intentionally left blank.
1–8 Rev. 3
This chapter provides installation information for the 1:1 switch, including unpacking, inspecting the parts, and external connections.
2.1 Unpacking
The 1:1 switch and manual are packaged in pre-formed, reusable cardboard cartons containing foam spacing for maximum shipping protection. To remove the 1:1 switch, proceed as follows:
Do not use any cutting tool that will extend greater than 1-inch into the container and cause damage to the 1:1 switch.
CAUTION
1. Cut the tape at the top of the carton where it is indicated OPEN THIS END.
Chapter 2.
INSTALLATION
2
2. Lift out the cardboard/foam spacer covering the 1:1 switch.
3. Remove the 1:1 switch, manual, and power cords from the carton.
4. Save the packing material for reshipment either back to the factory or to another location.
5. Inspect the equipment for any possible damage incurred during shipment.
6. Check the equipment against the packing list to ensure that the shipment is complete.
7. Refer to Section 2.2 for further system installation instructions.
Rev. 3 2–1
Installation SMS-301 Redundancy Switch
2.2 System Installation
System installation instructions are dependent on whether or not the 1:1 switch is used with the RS-301 Remote Switch option.
For all switch configurations where the Data I/O is switched internally to the 1:1 switch, refer to Appendix B for standard configuration installation. This configuration is used with the SDM-300/-300A Satellite Modems with 25-pin, 34-pin, 37-pin, and 50-pin Data I/O interfaces.
When the RS-301 Remote Switch option is used and the Data I/O is s witched in a separate unit, refer to Appendix B for installation with RS –301 switch installed. This configuration is used with the SDM-300/-300A Satellite Modem with a 100-pin Data I/O (8-channel Mux).
Note:
Refer to Appendix C for SDM-2020 cabling instructions to the switch.
2–2 Rev. 3
SMS-301 Redundancy Switch Installation
2.3 External Connections
Connections between the 1:1 switch and other equipment are performed through the rear panel connectors. These connectors vary depending on whether the Remote Switch (RS-
301) is used.
Refer to Table 2-1 for the connector list when the Data I/O is switched internal to the 1:1 switch.
When the 1:1 switch is used with the Remote Switch (RS-301) option, refer to Table 2-2.
J1 REMO TE SW IT C H CO N TROL
!
100 TO 240 V
1.5 A 50 TO 60 Hz
AC1
J11
AC2 J12
T2A, 250V
STATUS/FAULTS
J14
J10 J13
REMOTE
CONTROL
MODEM
COM
J9 A
DEMOD
J8
RX IFJ7B
TX IF
MOD
J4
J5
J6
A
B
Rear Panel (Standard Configuration)
TRIB 1 DATA TRIB 2 DATA TRIB 3 DATA TRIB 4 D ATA TRIB 5 DATA TRIB 6 DATA TRIB 7 DATA TRIB 8 DATA AUX
RS-301
J7J4J1 J2 J3 J5 J6
J8
J9
Rear Panel (With RS-301 Option)
Figure 2-1. SMS-301 Rear Panel Configurations
Rev. 3 2–3
Installation SMS-301 Redundancy Switch
Table 2-1. Rear Panel Connectors (Standard Configuration)
Name Ref Des Connector Type Function
DATA CO M J1 50/37/25-pin D Com mon Data Interfa c e DATA A J2 50/37/25-pin D Mode m A Data Inte rface DATA B J3 50/37/25-pin D Modem B Data Inte rface TX IF COM J4 BNC Common TX IF Output TX IF A J5 BNC Modem A TX IF Input TX IF B J6 BNC Modem B TX IF Input RX IF B J7 BNC Modem B RX IF Output RX IF COM J8 BNC Comm on R X IF Input RX IF A J9 BNC Modem A RX IF Output REMOTE CONTR OL J10 9-pin D Remote Comma nd I nte rface AC POWER J11/J12 IEC AC Power I nput SW/MODEM COMM J13 9-pin D Modem A/B Remote STATUS/FA U L TS J14 15-pin D Switch Status (Form C relay) GND GND #10-32 stud Ground
Table 2-2. Rear Panel Connectors (With RS-301 Option)
Name Ref Des Connector Type Function
REMOTE SWITCH CONTROL TX IF COM J4 BNC Common TX IF Output TX IF A J5 BNC Modem A TX IF Input TX IF B J6 BNC Modem B TX IF Input RX IF B J7 BNC Modem B RX IF Output RX IF COM J8 BNC Comm on R X IF Input RX IF A J9 BNC Modem A RX IF Output REMOTE CONTR OL J10 9-pin D Remote Comma nd I nte rface AC POWER J11/J12 IEC AC Power I nput DC POWER SW/MODEM COMM J13 9-pin D Modem A/B Remote STATUS/FA U L TS J14 15-pin D Switch Status (form C relay ) GND GND #10-32 stud Ground
Note:
(Optional)
The use of each connector is described in the following paragraphs.
J1 37-pin D RS-301 Control Signa ls , Pow e r,
and Ground
J11/J12 Terminal B loc k DC Power Input
2–4 Rev. 3
SMS-301 Redundancy Switch Installation

2.3.1 Remote Switch Control (J1) (RS-301 Option)

For applications using the Remote Switch (RS-301) option, the connector type is a 37-pin D subminiature. Refer to Table 2-3 for the 37-pin connector pin assignments.
Table 2-3. Switch Control Interface Signals
Pin No. Name Function
1 SCL Serial Clock
20 SDA Serial Data
2 Spare 11 No Connection
21 Spare 10 No Connection
3 Spare 9 No Connection
22 Spare 8 No Connection
4 Spare 7 No Connection
23 Spare 6 No Connection
5 Spare 5 No Connection
24 Spare 4 No Connection
6 Spare 3 No Connection
25 Spare 2 No Connection
7 Spare 1 No Connection
26 DMDONL Demod Online
8 MODONL Mod Online
27 /B_DF Modem B D e mod Fault
9 /A_DF Modem A Demod Fault 28 /B_MF Modem B Mod Fault 10 /A_MF Modem A Mod Fault 29 ID_5 Interface Board ID 11 ID_4 Interface Board ID 30 ID_3 Interface Board ID 12 ID_2 Interface Board ID 31 ID_1 Interface Board ID 13 GND Ground 32 GND Ground 14 GND Ground 33 GND Ground 15 GND Ground 34 -12V -12VDC 16 -12V -12VDC 35 +12V +12VDC 17 +12V +12VDC 36 +5V + 5VD C 18 +5V + 5VD C 37 +5V + 5VD C 19 +5V + 5VD C
Rev. 3 2–5
Installation SMS-301 Redundancy Switch

2.3.2 Data I/O Connections

The 1:1 switch data interface is dependent upon the installed switchboard. These are described in the following sections.
2.3.2.1 Data I/O Connector (J1, J2, J3), 50-Pin (PL/5951)
Note:
For ASYNC, IBS, IDR, and D&I applications.
In order to maintain comp atibility with various Comtech EFData break out panels, the 50­pin D subminiature connector has the assignments shown in Table 2-4, depending upon the current operating mode.
Table 2-4. Data I/O Connector, 50-Pin
50-Pin D Connector
Pin # IDR IBS Async D&I
34 G.703 SDA In G.703 SDA In G.703 SDA In G.703 SDA In 18 G.703 SDB I n G.703 SDB I n G.703 SDB In G.703 SDB In 36 G.703 RDA Out G.703 RDA Out G.703 RDA Out G.703 RDA Out 20 G.703 RDB Out G .703 RD B O ut G.703 RDB Out G.703 RDB Out 35 EIA- 422 Ex tClkA In V.35/EIA-422 EXCA In V.35/EIA- 422 E X CA In EIA-422 EXCA In 19 EIA-422 E x tClkB In V.35/EIA-422 EXCB In V.35/EIA-422 EX CB In EIA- 422 EX CB In 37 EIA- 422 8k TXDA In V.35/EIA - 422 S D - A In V.35/EIA-422 S D - A In G.703 DDO-A Out 38 EIA- 422 8k TXDB In V.35/EIA-422 SD-B In V.35/EIA-422 SD-B In G.703 DDO-B Out 21 EIA- 422 8k TClkA Out V.35/EIA - 422 S T-A Out V.35/EIA-422 ST- A Out 22 EIA- 422 8k T C l kB O ut V.35/EIA-422 S T-B Out V.35/EI A-422 ST-B O ut
4 EI A-422 TXOctA In ESC TXDB In (EIA-485 only)
5 EI A-422 TXOctB In ESC TXDA I n ( E IA-232 onl y) ESC TXD A In (EIA-485 & 232) ESC TX D In (EI A-232 only ) 39 EIA- 422 8k RX D A Out V.35/EI A-422 RD-A O ut V.35/EIA-422 RD-A O ut G.703 I D I-A In 40 EIA-422 8k RXDB Out V.35/EIA-422 RD-B Out V.35/EI A-422 RD-B Out G.703 IDI-B In 23 EIA-422 8k RClkA Out V.35/EIA-422 RT - A Out V.35/EI A-422 RT-A O ut G.703 IDI-B I n 24 EIA-422 8k RClkB Out V.35/EIA - 422 RT-B Out V.35/EIA - 422 RT-B Out
6 EI A-422 RXOctA O ut ESC RXDB Out (EIA-485 onl y)
7 EI A-422 RXOctB Out ESC RXDA Out (EIA-232 only ) ESC RXDA Out (EI A-485 & 232) ESC RXD Out (EIA - 232) 45 Aud1-A In (or 64SDA) V.35/EIA - 422 RTS-A V.35/EIA - 422 RTS-A 29 Aud1-B In ( o r 64S D B) V.35/EIA - 422 RTS-B V.35/EIA-422 RTS- B 44 BWO4_NO SECONDARY_NO SECONDARY_NO 12 BWAI 1 V.35/EIA - 422 S CTE/TT A V.35/EIA-422 SCTE/T T A 13 BWAI 2 V.35/EIA - 422 S CTE/TT B V.35/EIA-422 SCTE/T T B 14 BWAI 3 EIA-422 TX Oct A 15 BWAI 4 EIA-422 TX Oct B 17 Def Maint Alr m 16 Demod Fault C 50 Demod Fault NO
3 AGC Out AGC Out AGC Out AGC Out 49 MF (Open Col lector) MF (Ope n Collector ) MF ( O pen Collecto r ) MF (Open Collector) 33 DF (Open Co l lector) DF (Open Collecto r ) DF (Open Co l lector) DF (Open Collector)
1, 2 Ground
2–6 Rev. 3
SMS-301 Redundancy Switch Installation
2.3.2.2 Data I/O Connector (J1, J2, J3), 37-Pin (PL/5952)
Note:
For EIA-422/-449, V.35, and G.703 applications.
The 37-pin D subminiature connector pin assignments are shown in Table 2-5.
Table 2-5. Data I/O Connectors, 37-Pin
Pin # EIA-422/-449 V.35 G.703 Signal Function
1 SG SG SG Signal Ground 3 MF MF MF MOD Fault 4
22
5
23
6
24
7
25
8
26
9 27 11 29 13 31 17 35 16 34 19 SG SG SG Signal Ground 20 SG SG SG Signal Ground 21 DF DF DF DEMOD Fault 37 SG SG SG Signal Ground
SD-A SD-B ST-A
ST-B RD-A RD-B RS-A RS-B RT-A RT-B CS-A CS-B
DM-A DM-B
RR-A RR-B TT-A TT-B
MC-A MC-B
SD-A SD-B
ST-A
ST-B RD-A RD-B
RS-A RS-B RT-A RT-B CS-A
CS-B DM-A DM-B RR-A
RR-B
TT-A
TT-B MC-A MC-B
SD-A SD-B
RD-A RD-B
MC-A MC-B
Send Data
Send Timing
Receive Data
Request to Send
Receiver Timing
Clear to Send
Data Mode
Receiver Ready
Terminal Ti ming
Master Clock
(Input)
The following shows the jumper configurations for EIA-422/449, V.35, and G.703.
EIA-422/449/V.35 G.703
JP2 JP1 JP3 JP6 JP4 JP7 JP5 JP6
JP9
Rev. 3 2–7
Installation SMS-301 Redundancy Switch
2.3.2.3 Data I/O Connector (J1, J2, J3), 25-Pin (PL/6026)
ote:
N
For EIA-422/-530, EIA-232, V.35, or G.703 applications,
The 25-pin D subminiature connector has the pin assignments shown in Table 2-6.
Table 2-6. Connector Assignments, 25-Pin
Pin # EIA-422/-530 EIA-232 V.35 G.703 Signal Function
3 RD-A RXD RD-A RD-A Receiv e D ata
16 RD+B RD+B RD +B
2 SD-A TXD SD-A SD-A Send Data 14 SD+B SD+B SD+B 24 TT-A TXC SCTE--A Terminal Timing 11 TT+B SCTE+B 15 ST-A ST SCT-A Send Timing 12 ST+B SCT+B 17 RT- A RXC SCR-A Receiver Timing
9 RT-B SCR-B
4 RS-A RTS RTS Request to Send 19 RS+B
5 CS-A CTS CTS Clear to Send 13 CS+B
8 RR-A DCD RLSD Receiver Ready 10 RR+B
6 DM-A DSR DSR Data Mode 22 DM+B 20 MC-A MC MC-A MC-A Master Clock (input) 23 MC+B MC+B MC+B 18 LL LL LL 21 DF DF DF DF Demod Fault 25 MF MF MF MF Mod Faul t
7 SIGGND SIGGND SIGGND SIGGND Signal Ground
1 SHLD SHLD SHLD SHLD
The following shows the jumper configurations for EIA-422/530.
EIA-422/-530 V.35 EIA-232 G.703
J6 J6 J19 J5 J7 J7 J23 J10 J8 J8 J24 J11
J9 J9 J25 J12 J14 J14 J27 J13 J15 J15 J28 J14 J17 J16 J29 J18 J18 J18 J30 J20 J20 J20 J17 J21 J21 J21 J22 J22 J22 J26 J26 J26
2–8 Rev. 3
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