Comtech EF Data CRS-400 User Manual

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CRS-400

1:8 Redundancy Switch

Installation and O

eration Manual

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MN/CRS400.IOM Revision 0

Comtech EF Data Documentation Update

Subject:

Date: Original Document Part Number/Rev: Errata Part Number:

Change Specifics:

ELATED DOCUMENTS

Comtech EF Data SDM-2020 Satellite Modulator Installation and Operation Manual

Comtech EF Data SDM-2020 Satellite Demodulator Installation and Operation Manual

Comtech EF Data CRS-280L 1:N Redundancy Switch Installation and Operation Manual

Errata A

Changes to Related Documents

October 13, 2003 MN/CRS400.IOM Rev 0

MN/CRS400.EA0

This information will be incorporated into the next revision.

s:\tpubs\manuals\released_word\switches\crs400_rev0\errataa.doc

Comtech EF Data is an ISO 9001

Registered Company.

CRS-400

1:8 Redundancy Switch

Installation and Operation Manual

Part Number MN/CRS400.IOM

REVISION 0

August 31, 2001

Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, (480) 333-2200, FAX: (480) 333-2161.

USTOMER SUPPORT

Contact the Comtech EF Data Customer Support Department for:

 Product support or training  Information on upgrading or returning a product  Reporting comments or suggestions concerning manuals

Contact Customer Support using any of the following methods:

Mail: Comtech EF Data

Email: service@comtechefdata.com Customer Support Department 2114 West 7th Street Tempe, Arizona 85281 USA

Phone: (480) 333-2200 (Main Comtech EF Data Number) (480) 333-4357 (Customer Support Desk) Fax: (480) 333-2161

Internet: www.comtechefdata.com

To return a Comtech EF Data product (in-warranty and out-of-warranty) for repair or replacement:

Request a Return Material Authorization (RMA) number from the Comtech

EF Data Customer Support Department.

Be prepared to supply the Customer Support representative with the model

number, serial number, and a description of the problem.

To ensure that the product is not damaged during shipping, pack the product

in its original shipping carton/packaging.

Ship the product back to Comtech EF Data. (Shipping charges should be

prepaid.)

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

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

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

Related Documents..................................................................................................................viii

Conventions and References.....................................................................................................viii

Cautions and Warnings............................................................................................................viii

Metric Conversion ...................................................................................................................viii

Recommended Standard Designations ......................................................................................ix

Trademarks ................................................................................................................................ix

Reporting Comments or Suggestions Concerning this Manual.................................................ix

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

EN55022 Compliance................................................................................................................. x

EN50082-1 Compliance..............................................................................................................x

Federal Communications Commission (FCC)........................................................................... x

Safety Compliance .......................................................................................................................xi

EN 60950...................................................................................................................................xi

Low Voltage Directive (LVD)...................................................................................................xi

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

Limitations of Warranty............................................................................................................xii

Exclusive Remedies..................................................................................................................xii

Disclaimer.................................................................................................................................xii

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

1.1 Description............................................................................................................................... 1

1.2 Front And Rear Panels........................................................................................................... 5

1.3 Major Assemblies And Options............................................................................................. 6

1.4 Specifications (Preliminary)................................................................................................... 7

1.4.1 Data Redundancy And Controller...................................................................................... 8

1.4.2 CRS-280 IF Redundancy Switch Specifications ............................................................... 9

1.4.3 Outline Drawing............................................................................................................... 10

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CHAPTER 2. INSTALLATION AND INITIAL SETUP................................................ 11

2.1 Unpacking and Inspection....................................................................................................13

2.2 Front Panel............................................................................................................................ 13

2.3 Rear Panel.............................................................................................................................. 13

2.3.1 Data Connectors............................................................................................................... 14

2.4 Mounting Instructions.......................................................................................................... 14

2.4.1 Provide Airflow ............................................................................................................... 14

2.4.2 About Rack Support......................................................................................................... 15

2.5 Installation Details................................................................................................................ 15

2.6 Cables and Connectors......................................................................................................... 15

2.6.1 HSSI Cable Physical Requirements................................................................................. 15

2.6.2 TMI Data Connector (HSSI)............................................................................................ 16

2.6.3 System Alarms Connector ............................................................................................... 18

2.6.4 IF Switch Control Connector........................................................................................... 19

2.6.5 Remote Control Connector.............................................................................................. 20

2.6.6 Auxiliary Serial Connector / Pass-Through..................................................................... 21

2.7 TMI Modules......................................................................................................................... 22

2.7.1 HSSI Module ................................................................................................................... 22

2.8 RMI Modules......................................................................................................................... 24

2.8.1 HSSI Module ................................................................................................................... 24

2.9 Connecting the Cables.......................................................................................................... 26

2.9.1 HSSI Connection .............................................................................................................26

2.10 Configuring the Mods/Demods – Firmware Versions..................................................... 27

2.11 Applying Power to the Switch............................................................................................ 28

2.11.1 Single Power Supply Operation (Test).......................................................................... 28

2.12 Configuring the Switch....................................................................................................... 29

2.12.1 Activate Desired Traffic Mods/Demods........................................................................ 29

2.12.2 Verify Remote Communications to Each Active Mod/Demod.....................................29

2.13 Configuring the IF Carriers............................................................................................... 30

2.13.1 Configuring and Cabling for a Single Transponder....................................................... 30

2.13.2 Configuring and Cabling for Multiple Transponders, Using the CRS-280 Transponder

Switch ....................................................................................................................................... 31

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2.14 Configuring Automatic Operation Mode ......................................................................... 32

2.14.1 Set Auto Mode On......................................................................................................... 32

2.14.2 Backup Holdoff Operation............................................................................................. 32

2.14.3 125.................................................................................................................................. 33

2.14.4 Restore Holdoff Operation............................................................................................. 33

2.14.5 Alarm Masking .............................................................................................................. 33

CHAPTER 3. OPERATION........................................................................................35

3.1 Front Panel Display.............................................................................................................. 35

3.2 Front Panel Keys................................................................................................................... 37

3.3 LED Indicators...................................................................................................................... 38

3.4 Menu Trees............................................................................................................................39

3.5 Flash Upgrading.................................................................................................................... 42

3.5.2 Flash Upgrade Procedure................................................................................................. 42

3.5.3 Flash Upgrade Help ......................................................................................................... 42

APPENDIX A. FRONT PANEL OPERATION DETAILS ............................................ 43

A.1 OPENING SCREEN............................................................................................................ 43

A.2 SELECT................................................................................................................................ 43

A.3 CONFIG................................................................................................................................ 44

A.3.1 (CONFIG) MANUAL..................................................................................................... 44

A.3.2 (CONFIG) AUTO[OFF or ON]...................................................................................... 45

A.3.3 (CONFIG) ACTIVE ....................................................................................................... 45

A.3.4 (CONFIG) REMOTE CONTROL.................................................................................. 45

A.3.5 (CONFIG) OPTIONS..................................................................................................... 47

A.4 INFO (Information).............................................................................................................51

A.4.1 (INFO) SWITCH-ID....................................................................................................... 51

A.4.2 (INFO) SETUP ............................................................................................................... 51

A.4.3 (INFO) IF-SWITCH ....................................................................................................... 51

A.4.4 (INFO) REMCONT (Remote Control Info)...................................................................52

A.4.5 (INFO) MASKS (Alarm Mask Info) .............................................................................. 52

A.5 MONITOR............................................................................................................................ 53

A.5.1 (MONITOR) STATUS................................................................................................... 53

A.5.2 (MONITOR) SWITCH ALARMS ................................................................................. 53

A.5.3 (MONITOR) STORED EVENTS .................................................................................. 54

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A.5.4 (MONITOR) COMM-STATE (Communications)......................................................... 54

A.6 STORE/LD (Store or Load Configuration)....................................................................... 55

A.6.1 (STORE/LD) STORE..................................................................................................... 55

A.6.2 (STORE/LD) LOAD....................................................................................................... 56

A.7 UTIL (Utility) ....................................................................................................................... 57

A.7.1 (UTILITY) CLOCK (Set Real-Time Clock) .................................................................. 57

A.7.2 (UTILITY) SWITCH-ID ................................................................................................ 57

A.7.3 (UTILITY) DISPLAY (Display Brightness)..................................................................58

A.7.4 (UTILITY) POLLING....................................................................................................58

APPENDIX B. REMOTE CONTROL.......................................................................... 59

B.1 Introduction..........................................................................................................................59

B.2 EIA-485 ................................................................................................................................. 59

B.3 EIA-232 ................................................................................................................................. 60

B.4 Basic Protocol ....................................................................................................................... 60

B.5 Packet Structure................................................................................................................... 61

B.5.1 Start Of Packet ................................................................................................................ 62

B.5.2 Address............................................................................................................................ 62

B.5.3 Instruction Code......................................................................................................... ..... 63

B.5.4 Instruction Code Qualifier............................................................................................... 63

B.5.5 Message Arguments........................................................................................................65

B.5.6 End Of Packet.................................................................................................................. 65

B.6 Remote Control Commands................................................................................................ 66

APPENDIX C. CABLE DRAWINGS...........................................................................73

INDEX...........................................................................................................................77

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Figures

Figure 1-1 CRS-400 Block Diagram with Modems and CRS-280 IF Switch............................ 2

Figure 1-2 CRS-400 Data Switch Block Diagram (TMI #1 is Bridged).................................... 3

Figure 1-3 CRS-280 IF Switch Block Diagram (with TMI and RMI Modules) ........................ 4

Figure 2-1 CRS-400 Front Panel .............................................................................................. 12

Figure 2-2 CRS-400 Rear Panel, with 8 HSSI TMI and 1 HSSI RMI ..................................... 12

Figure 2-3 SCSI-2 (ECL/HSSI) Connector, Pin Locations...................................................... 17

Figure 2-4 HSSI TMI Module .................................................................................................. 22

Figure 2-5 HSSI RMI Module..................................................................................................24

Figure 3-1 Principle Menus Tree for Independent Mode ......................................................... 40

Figure 3-2 Principle Menus Tree for Dependent Mode............................................................ 41

Figure C-1 PC 9-Pin Serial Port to CRS-400 EIA-232 Remote Control Port..........................73

Figure C-2 HSSI Data Cable..................................................................................................... 74

Tables

Table 2-1 HSSI Pinout (J5 / J6 / J7) 50-Pin Mini-D/SCSI-2 Male and Female.......................16

Table 2-2 Systems Alarm Connector Pinout, 25-Pin D Type Female...................................... 18

Table 2-3 IF Switch Control Connector, 25-Pin D Type Male................................................. 19

Table 2-4 Remote Control Connector, 9-Pin D Type Male...................................................... 20

Table 2-5 Auxiliary Serial Connector/Pass-Through, Cable # PL/9195-1...............................21

Table 2-6 HSSI TMI Jumper Selection (TA/CA)..................................................................... 23

Table 2-7 HSSI TMI Jumper Selection (RT/RD).....................................................................23

Table 2-8 HSSI RMI Jumper Selection.................................................................................... 25

Table 2-9 HSSI TMI Jumper Selection (RT/RD).....................................................................25

Table 2-10 CRS-400 to SDM-2020 Data Connection..............................................................26

Table 2-11 CRS-280 IF Switch Connections............................................................................ 31

Table 3-1 Switch LED Indicators ............................................................................................. 38

Table 3-2 Transmit and Receive Traffic Modem LED Indicators............................................ 38

Table C-1 CA/WR9189 Cable Assembly (Pinout, Male/Male, HSSI, Shielded)..................... 75

vii

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BOUT THIS MANUAL

This manual provides installation and operation information for the Comtech EF Data CRS-400 1:8 Redundancy Switch. This is a technical document intended for earth station engineers, technicians, and operators responsible for the operation and maintenance of the CRS-400 1:8 Redundancy Switch.

ELATED DOCUMENTS

Comtech EF Data SDM-2020 Satellite Modulator Installation and Operation Manual Comtech EF Data SDM-2020 Satellite Demodulator Installation and Operation Manual

ONVENTIONS AND REFERENCES

AUTION S AND WARNINGS

Indicates information critical for proper equipment function.

IMPORTANT

Indicates a hazardous situation that, if not avoided, may result in minor or moderate injury. CAUTION may also be used to indicate other unsafe practices or risks of

CAUTION

WARNING

ETRIC CONVERSION

property damage.

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

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.

viii

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ECOMMENDED 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.

RADEMARKS

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

EPORTING 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 EF Data Customer Support Department.

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EMC C

EN55022 C

EN50082-1 C

EDERAL COMMUNICATIONS COMMISSION

OMPLIANCE

This is a Class A product. In a domestic environment, it may cause radio interference that requires the user to take adequate protection measures.

OMPLIANCE

This equipment meets the radio disturbance characteristic specifications for information technology equipment as defined in EN55022.

OMPLIANCE

This equipment meets the electromagnetic compatibility/generic immunity standard as defined in EN50082-1.

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.

(FCC)

This equipment generates, uses, and can radiate radio frequency energy. If not installed and used in accordance with the instruction manual, it may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference; in which case, users are required to correct the interference at their own expense.

To ensure compliance, properly shielded cables for DATA I/O shall be used. More

Note:

specifically, these cables shall be shielded from end to end, ensuring a continuous shield.

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AFETY COMPLIANCE

EN 60950

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

This equipment meets the Safety of Information Technology Equipment specification as defined in EN60950.

OW VOLTAGE DIRECTIVE

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

(LVD)

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

CAUTION: Double-pole/Neutral Fusing.

ACHTUNG: Zweipolige bzw. Neutralleiter-Sicherung.

International Symbols:

Symbol Definition Symbol Definition

Alternating Current.

Fuse.

Protective Earth.

Chassis Ground.

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

Note:

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ARRANTY POLICY

This Comtech EF Data product is warranted against defects in material and workmanship for a period of two years from the date of shipment. During the warranty period, Comtech EF Data 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 EF Data and all related custom, taxes, tariffs, insurance, etc. Comtech EF Data is responsible for the freight charges only for return of the equipment from the factory to the customer. Comtech EF Data will return the equipment by the same method (i.e., Air, Express, Surface) as the equipment was sent to Comtech EF Data.

IMITATIONS 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 EF Data.

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

XCLUSIVE REMEDIES

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

ISCLAIMER

Comtech EF Data 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 EF Data 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 the equipment or the information in this manual, please contact the Comtech EF Data Customer Support Department.

xii

Chapter 1. Introduction

CRS-400

1:8 Redundancy

Switch

Optional CRS-280

IF Switch

1.1 D

ESCRIPTION

The Comtech EF Data CRS-400 1:8 Redundancy Switch is designed for use with the Comtech EF Data SDM-2020 modulator and demodulator to provide fully automatic protection of traffic circuits in case of equipment failure. It is intended for hub and other redundancy applications and currently supports the HSSI interface type.

Connection to the traffic modulators/demodulators and the redundant modulator/demodulator is simple – a Data cable, which carries all data signals and alarm information, a 485 cable for remote control interfaces, and, in some cases, a fault cable. This simplifies rack cabling, and reduces the number of potential failure points.

CAUTION

The Comtech EF Data CRS-400 switch is designed specifically as an accessory product for the Comtech EF Data SDM-2020 modulator and demodulator and is not designed to operate with any other manufacturer’s equipment.

CRS-400 1:8 Redundancy Switch Revision 0 Introduction MN/CRS400.IOM

The CRS-400 is fully modular in construction. All replaceable modules insert into slots in the rear. This includes the Controller, Power Supply Units (PSU), Traffic Modem Interface (TMI) and the Redundant Modem Interface (RMI). Power consumption is below 25 W for a fully populated switch, so no fan cooling is required.

The CRS-400 incorporates the following key reliability features:

 Twin, independent, AC power supplies  Maintains normal traffic paths, error free, when AC power is removed

: Redundant Modulator/Demodulator traffic returns to normal traffic path if power is lost

Note

Modulator

Demodulator

User

Equipment

1 2 3 4 5 6 7

8 1

2 3 4 5 6 7 8

Front Panel Keyp ad ,

LCD and LE D Display

CRS-400

To Up

Converters

From Down

Converters

CRS-240

Power Supply

CRS-240

Power Supply CRS-400.ppt

1 2

Traffic

Modem

Switches

(TMI)

5 6 7

Redundant

Modem

Switch

(RMI)

Redundant

1 2 3 4 5

6 7 8

Remote

Pass-Thru

Modem 1 Modem 2 Modem 3 Modem 4 Modem 5 Modem 6 Modem 7 Modem 8

Modem Re dund

Remote Contro l To All Modems

CRS-230

Controller

System Alarms

1 2 3 4 5 6 7 8

Redundant

IF Switch Control

CRS-280

Switch

(Optional)

Figure 1-1 CRS-400 Block Diagram with Modems and CRS-280 IF Switch

The function of the CRS-400 Redundancy Switch is depicted in Figure 1-1. User data enters and exits the switch at the left hand side of the diagram, while IF leaves and enters from the right. The data and clock signals to and from a traffic modulator/demodulator are routed through a TMI, via a set of relays. There are up to 8 TMIs in the switch, labeled 1 through 8 in the figure. The relays in the TMI are arranged so that the unpowered state connects the data signals directly through to the traffic modulator/demodulator. If the power supplies to the system are lost, or if a TMI carrying traffic is removed, traffic is not interrupted. In normal circumstances, when the redundant modulator/demodulator is not in service, no data is carried through the CRS-400 backplane – all data is routed through the TMI.

CRS-400 1:8 Redundancy Switch Revision 0 Introduction MN/CRS400.IOM

There are several other key operational features of the CRS-400 architecture:

 “Bridging” a traffic modulator/demodulator clock and data: A copy of the data and

clock signals feeding a particular modulator/demodulator is selectively routed to the redundant modulator/demodulator.

 “Bridging” a traffic modulator/demodulator IF: RMI Rx IF is tuned to receive any

selected carrier.

 Live traffic may be checked on the redundant demodulator when the traffic

demodulator is placed in “bridge” mode.

There are two ways to set up the CRS-400 for IF operation. The first method does not require an optional IF switch and is used when all modulators/demodulators within a group are connected to the same up/down converter.

The second method is used when operation with more than one up/down converter is required. In this case, adding the CRS-280 IF Switch permits connections to as many converters as traffic modulators/demodulators.

The data switch and IF switch are shown in Figure 1-2 and Figure 1-3, respectively. Data enters the TMI modules (CH1 - CH8) at the bottom of Figure 1-2. The Tx data entering each channel is routed through the TMI and sent out to the traffic modulators/demodulators. The Tx data and clock are also buffered by an amplifier to make them available for bridging and routing through the RMI.

Figure 1-2 CRS-400 Data Switch Block Diagram (TMI #1 is Bridged)

CRS-400 1:8 Redundancy Switch Revision 0

Introduction MN/CRS400.IOM

Figure 1-3 depicts the separate Tx and Rx sections of the optional IF switch. Either in the non-energized state of the relays, or when the switch is not powered, the IF traffic is routed straight through on the primary units. Traffic enters the Tx section of the switch from the bottom of the switch and leaves from the top. In the Rx section of the switch, traffic flows in the opposite direction. There is a loss of 3 dB in the demodulator path because of the receive splitter.

To Up Converters

UC1 UC2 UC3 UC4 UC5 UC6 UC 7 UC8 UC9 UC10

Tx2Tx1 Tx3 Tx4 Tx5 Tx6 Tx7 Tx8 Tx9 Tx10TxBU

From Redundant

Modulator

DC1 DC2 DC3 DC4 DC5 DC6 DC7 DC8 DC9 DC10

Splitter Splitter Splitter Splitter Splitter Splitter Splitter Splitter Splitter Splitter

Rx1 Rx2 Rx3 Rx4 Rx5 Rx6 Rx7 Rx8 Rx9 Rx10RxBU

CRS-400.ppt

To Demodulators 1 Through 5

From Modulators 1 Through 8

From Down Converters Not Used

Demodulator

Switch

Demodulator

Not Used

Test Point

Modulator Switch

Controller

Interface

Drivers

h 8To Redundant

Not UsedTo Demodulators 6 Throu

Figure 1-3 CRS-280 IF Switch Block Diagram (with TMI and RMI Modules)

All of the modulators/demodulators are connected to the CRS-400 via a single, 9-pin, EIA-485, multi-drop cable and the HSSI cable. The EIA-485 link permits the CRS-400 to determine and store a modulator/demodulator’s configuration, and to send a chosen configuration to the redundant modulator/demodulator.

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1.2 F

RONT AND REAR PANELS

The front panel contains the Vacuum Fluorescent Display (VFD), keypad, and several LED indicators. Enter data via the keypad, and messages are displayed on the VFD. Behind the front panel, there is an audio alarm that can be controlled to respond to various faults.

External cables are attached to connectors on the rear panel of the CRS-400’s plug-in modules.

The connectors are listed below for reference.

 Data connector to each Mod/Demod  User Data Interface connector for each traffic Mod/Demod to the outside world  System Alarms connector  Remote Control connector  Auxiliary EIA-485 connector, (Pass-Through)

Diagrams of the front and back panels are shown in Chapter 2.

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1.3 M

AJOR ASSEMBLIES AND OPTIONS

Part Number Description Model # Comments Install Option

Main Unit Chassis,

Motherboard and Display AS/9163 Traffic Modem Interface, HSSI CRS-410 Option User AS/9165 Redundant Modem Interface, HSSI CRS-412 Option User AS/0377 System Controller CRS-230 AS/0376 Power Supply: 100–250 VAC CRS-240 With Main Unit User FP/CV9167 Blank Panel Option User PL/WR9212-1 485 Multi-drop cable With Main Unit User AS/8976-2 I/F Switch: 50 Ohm

(Not Available) AS/8976-1 I/F Switch: 75 Ohm CRS-280-1 Option User PL/WR9195-6 HSSI – 6 foot cable Option With

PL/0946-1 IF BNC to BNC 50 Ohm,

4 foot cable

Main Unit Factory

CRS-280-2 Option User

User

Main Unit

Spare User

PL/0946-2 IF BNC to BNC 50 Ohm,

8 foot cable PL/0813-4 IF BNC to BNC 75 Ohm,

4 foot cable PL/0813-8 IF BNC to BNC 75 Ohm,

8 foot cable

Option With

Main Unit

Spare User

Option With

Main Unit

User

CRS-400 1:8 Redundancy Switch Revision 0 Introduction MN/CRS400.IOM

1.4 S

PECIFICATIONS (PRELIMINARY

Characteristic Requirement AC Prime Power Two independent inputs,

Size/Weight Data Switch/Control Unit

IF Switch Unit

Environmental Temperature

Humidity

)

90 to 264 VAC; 50/60 Hz; at 25 Watts

4U 19 in. by 20.1 in. deep, Rack Mount (4U 48.26 cm W by 51.054 cm D)

< 20 pounds (< 9.07 kg)

4U 19 in. by ~4.5 in. deep, Rack Mount (4U 48.26 cm W by 11.43 cm D)

< 10 pounds (<4.54 kg)

0 to +40°C Operating

-50 to +100°C Storage 95% at +40°C, Non-condensing

EMC And Safety EN 55022 Class B emissions

EN 50082-1 immunity EN 60950 Safety FCC Part 15 Class B

CRS-400 1:8 Redundancy Switch Revision 0 Introduction MN/CRS400.IOM

1.4.1 D

Characteristic Requirement Number of Prime

Mods/Demods Number of Backup

Mods/Demods Operating Mode - Data

Switch Operating Mode - IF Switch Dependent or Independent Mod/Demod

Priority/Programmable Switching Hold Off Time 2 to 99 Seconds Switching Manual or Auto Default on Power Loss Redundant Modulator/Demodulator traffic returns to the normal

Operating Modes Fully Automatic

ATA REDUNDANCY AND CONTROLLER

1 to 8

Dependent or Independent

1 Bridge Mode

traffic path.

Manual, force backup to replace selected traffic channel Manual, force backup to parallel traffic channel, Bridge

Remove selected traffic channel from control, Active or Not Active User interface/Connector (8 Data/TMI Channels) Configuration Control Remote:

Tx Offline Activity Bridged unit receives a copy of the clock and data from one of the

HSSI to 70 Mbit/s SCSI-2 female

75 Ohm, Supporting : BNC-Female

EIA-485/232-C, programmable

Both switch and mod/demod communications

Manual:

Menu driven from switch front panel

Both switch and mods/demods

traffic channels. User designates the traffic channel.

CRS-400 1:8 Redundancy Switch Revision 0 Introduction MN/CRS400.IOM

1.4.2 CRS-280 IF R

Characteristic Requirement Tx/Rx Operating Frequency 50 to 180 MHz Return Loss 18 dB return loss into 75Ω (50Ω optional) Tx to Tx Channel Isolation > 50 dB Rx to Rx Channel Isolation > 50 dB Tx to Rx Channel Isolation > 60 dB Number of Uplinks 1 to 8 traffic mods/demods Transmit IF Loss < 1.5 dB over operating frequency Receive IF Loss < 5 dB over operating frequency Tx / Rx Connectors BNC female L-Band IF Switch Number of Downlinks 1 to 8 traffic units Powering of IF Switch From the CRS-400 chassis for 70 / 140 MHz or L-Band

EDUNDANCY SWITCH SPECIFICATIONS

Switch

CRS-400 1:8 Redundancy Switch Revision 0 Introduction MN/CRS400.IOM

1.4.3 O

UTLINE DRAWING

Dimensions are shown in both inches and (centimeters).

Chapter 2. Installation and Initial Setup

Unpacking and Inspection Front Panel Rear Panel Mounting Instructions Installation Details Cables and Connectors TMI Modules RMI Modules Connecting the Cables Configuring the Mods/Demods – Firm ware Vers ions Applying Power to the Switch Configuring the Switch Configuring the IF Carriers Configuring Automatic Operation Mode

13 13 13 14 15 15 22 24 26 27 28 29 30 32

: The term “modulator/demodulator” will be abbreviated to “mod/demod” throughout the

Note

remainder of this chapter.

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Figure 2-1 CRS-400 Front Panel

Figure 2-2 CRS-400 Rear Panel, with 8 HSSI TMI and 1 HSSI RMI

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2.1 U

2.2 F

NPACKING AND INSPECTION

Inspect shipping containers for damage.

If shipping containers are damaged, keep them until the contents of the shipment have

been carefully inspected and checked for normal operation.

Remove the packing list from the outside of the shipping carton.

Open the carton and remove the contents.

Check the contents against the packing list to verify completeness of the shipment.

If damage is evident, contact the carrier and Comtech EF Data immediately and submit a damage report.

Be sure to keep all shipping materials for the carrier's inspection.

If the unit needs to be returned to Comtech EF Data, please use the original shipping container.

RONT PANEL

Figure 2-1 is an illustration of the front panel. The CRS-400 is constructed as a 4U high rack-mounting chassis that can be freestanding, if desired. It is provided with rackhandles at the front for easy removal from and placement into a rack.

2.3 R

EAR PANEL

The connectors on the rear panel (see Figure 2-2) of the CRS-400 include:

 Data connectors

 Data connector to each Mod/Demod  User Data Interface connector for each traffic Mod/Demod to the outside world  Redundant Modem Interface (RMI) connectors

 System Alarms connector  Remote Control connector  Auxiliary (Pass-Through) EIA-485 connector, 19200 baud with 7-E-2 (7 Data bits,

Even parity, and 2 Stop bits protocol only)

 IF Switch Control connector  Power Supply connectors

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2.3.1 D

The Data connectors on the TMI plug-ins lead to/from the mods/demods, and lead to/from the outside world (User Data).

The User Data female connector can be treated as an extension of the traffic mod/demod’s Data connector. The RMI has no User Data connector, since it will only replace one of the traffic mods/demods. The pinout for both connectors is provided in the next chapter.

Open Collector TTL (OC-TTL) signals for mod/demod faults are used to initiate switching in the CRS-400 switch. The conductors are either in the data cable or in a separate cable, depending upon the type of data interface.

Note

2.4 M

ATA CONNECTORS

: It is the user’s responsibility to provide the appropriate User Data cable to connect

between the outside user equipment and the TMI. Reliable Data cables are available from Comtech EF Data to connect between the TMI (or RMI) and the Mod (or Demod).

OUNTING INSTRUCTIONS

The CRS-400 is constructed as a 4U high rack-mounting chassis. Rack-handles at the front of the unit facilitate removal from and placement into a rack.

Mount the switch in the rack using the mounting holes on the front panel.

For the CRS-400 to operate correctly, identical types of Mod/Demod models must be used for all traffic Mods/Demods, and for the redundant Mod/Demod.

2.4.1 P

Typically, the CRS-400 is mounted in a rack along with all the Mods/Demods with which it is to operate, so it is important to ensure that there is adequate clearance for ventilation.

Since the switch itself is relatively passive, no additional clearance is needed between it and the nearest Mod/Demod.

In rack systems where there is high heat dissipation, provide forced-air cooling by installing top- or bottom-mounted fans or blowers.

DO NOT MIX MODELS OF MODS/DEMODS CONNECTED TO THE SWITCH

WARNING

ROVIDE AIRFLOW

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CAUTION

Do not allow the internal rack temperature to exceed 50

2.4.2 A

Mount the switch using front panel screws only. Do not install rack slides to the side of the CRS-400 chassis. Contact the factory if there are questions about rack supports.

2.5 I

Cable connections for the switch are wired on a channel by channel basis as indicated in Figure 1-1 of Chapter 1, a block diagram of the CRS-400. Further detail for the data switch and IF switch is provided in Chapter 1, Figure 1-2 and Figure 1-3. The subsequent tables provide the detail cable connections between the CRS-400 and the mods/demods and other interfaces.

In Paragraph 2.13 a separate connection table is presented for connections made to the optional IF switch.

2.6 C

Please use the following information to verify that you have the correct cables and connectors available prior to installing the unit.

BOUT RACK SUPPORT

NSTALLATION DETAILS

ABLE S AN D CONNECTORS

IMPORTANT

2.6.1 HSSI C

The HSSI cables required between each Mod/Demod and its plug-in card (TMI or RMI) should be of shielded, twisted-pair construction with the grounded shield bonded to the back shell. All 50 pins should be wired to the same pin number at either connector (pinto-pin), with a male connector at both ends. The Data and Clock must be on twisted-pair cable.

Appropriate HSSI cables lengths are available from Comtech EF Data, so please consult the factory for ordering information. Please note that these cables are an extra-cost item.

Comtech EF Data can supply IF cables or IF splitters/combiners with the CRS 280 Redundancy Switch as an option.

ABLE PHYSICAL REQUIREMENTS

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2.6.2 TMI D

ATA CONNECTOR

(HSSI)

Table 2-1 describes the pinout for the HSSI connector. User equipment connects to the CRS-400 at J5. Make the connections from the CRS-400 to the mod/demod using J6 and J7 for the modulator and demodulator, respectively. Two connectors, J6 and J7, are provided to eliminate the need for a Y-cable between the mod/demod and the switch when the modulator and demodulator are housed in separate chassis. Use only J6 when connecting a combined modulator and demodulator (modem) to the switch.

Table 2-1 HSSI Pinout (J5 / J6 / J7) 50-Pin Mini-D/SCSI-2 Male and Female

HSSI/EIA-613 Interface Connector Pinout -- J6 / J7 To modem J5 To User Signal Function HSSI

Signal Signal Ground SG 102 1, 26 Mod/Demod 1, 26 Receive Timing RT 115 2, 27 from DCE Demodulator 2, 27 DCE Available CA 107 3, 28 from DCE Mod/Demod 3, 28 Receive Data RD 104 4, 29 from DCE Demodulator 4, 29 Loopback Circuit C LC undefined 5, 30 from DCE Mod/Demod unused

EIA-613 Circuit

Pin # (+, -) Circuit

Direction

Comment Pin # (+, -)

Send Timing ST 114 6, 31 from DCE Modulator 6, 31 Signal Ground SG 102 7, 32 Mod/Demod 7, 32 DTE Available TA 108/2 8, 33 to DCE Mod/Demod 8, 33 Terminal Timing TT 113 9, 34 to DCE Modulator 9, 34 Loopback Circuit A LA 143 10, 35 to DCE Mod/Demod unused Send Data SD 103 11, 36 to DCE Modulator 11, 36 Loopback Circuit B LB 144 12, 37 to DCE Mod/Demod unused Signal Ground SG 102 13, 38 Mod/Demod 13, 38 TX PSYNC TX DVALID Reserved (to DCE) 16, 41 unused unused Reserved (to DCE) 17, 42 unused unused Reserved (to DCE) 18, 43 unused unused Signal Ground SG 102 19, 44 Mod/Demod 19, 44 Carrier Detect (lock)

(Notes 1 and 2)

(Note 1)

TPSYNC undefined 14, 39 to DCE Modulator unused

(Note 1)

TDVALID undefined 15, 40 to DCE Modulator unused

CD undefined 20 from DCE Demodulator 20

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HSSI/EIA-613 Interface Connector Pinout -- J6 / J7 To modem J5 To User Signal Function HSSI

Signal Demod Fault

(Notes 1 and 3)

Mod Fault

(Notes 1 and 3)

DF undefined 45 from DCE Demodulator unused

MF undefined 21 from DCE Modulator unused

EIA-613 Circuit

Pin # (+, -) Circuit

Direction

Comment Pin # (+, -)

Reserved (to DTE) 46 unused unused RX PSYNC RX DVALID

(Note 1)

RPSYNC undefined 22, 47 from DCE Demodulator unused

(Note 1)

RDVALID undefined 23, 48 from DCE Demodulator unused Test Mode TM 142 24, 49 from DCE Mod/Demod unused Signal Ground SG 102 25, 50 Mod/Demod 25, 50

Notes

1) Noted signal function names are non-HSSI defined signals. On Cisco routers there is no connection to those pins. Refer to the Comtech EF Data web site for an Application Note describing the use of the SDM-2020 with Cisco routers.

2) TTL - output.

3) TTL – open collector output.

The HSSI interface uses the type of SCSI-2 connector shown in Figure 2-3.

Figure 2-3 SCSI-2 (ECL/HSSI) Conn ec tor , Pin Loca ti ons

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2.6.3 S

Located on the System Controller card, the System Alarms connector provides access to Form-C relay contacts that indicate the fault status of the switch and the summary faults.

If any of the attached mods/demods has any fault active, the corresponding Tx or Rx summary relay will energize, forcing the normally open pin to connect to (and the normally closed pin to disconnect from) the common pin.

Another pin provides a ground connection when the audio alarm is sounded so that the user may add additional audible alarms.

There are also relay contacts to indicate which, if any, of the traffic mods/demods is currently being backed up. To determine which mod/demod is being backed up (see the connector pinout, Table 2-2), decode the BCD relay outputs.

YSTEM ALARMS CONNECTOR

Table 2-2 Systems Alarm Connector Pinout, 25-Pin D Type Female

Pin Description

13 Unused Rela y – NC Contac t 25 Unused Rela y – NO Contac t 12 Mod/demod Summary Rx Traffic Fault – NC Contact 24 Mod/demod Summary Rx Traffic Fault – NO Contact 11 Mod/demod Summary Tx Traffic Fault – NC Contact 23 Mod/demod Summary Tx Traffic Fault – NO Contact 10 Mod/demod Summary Unit Fault – NC Contact 22 Mod/demod Summary Unit Fault – NO Contact 9 Switch Unit Fault – NC Contact 21 Switch Unit Fault – NO Contact 8 Common contact for pins 9-12 and 21-24 20 Audio Indicator (Gnd = Audio on Float = Audio off) 7 Ground 19 Not Connected 6 BU Mod Replaces Traffic Mod “N”, Bit 1 of 3 – NO Contact 18 BU Mod Replaces Traffic Mod “N”, Bit 2 of 3 – NO Contact 5 BU Mod Replaces Traffic Mod “N”, Bit 3 of 3 – NO Contact 17 Unused Rela y – NO Contac t 4 BU Demod Replaces Traffic Demod “N”, Bit 1 of 3 – NO Contact

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Pin Description

16 BU Demod Replaces Traffic Demod “N”, Bit 2 of 3 – NO Contact 3 BU Demod Replaces Traffic Demod “N”, Bit 3 of 3 – NO Contact 15 Unused Rela y – NO Contac t 2 Unused Relay – NO Contact 14 Unused Rela y – NO Contac t 1 Common contact for pins 3-6 and 15-18

* Note

: Mod/demod Select 0-3 represent the binary address of the Mod/Demod.

2.6.4 IF S

The IF Switch Control connector should be cabled directly to the corresponding connector on the CRS-280 IF Switch, if used. This supplies power to the CRS-280, along with the logic interface to drive the currently selected traffic mod/demod, and to decide whether the system is in bridged or back-up mode. The CRS-280 must perform the same bridging and backing up functions to the transmit and receive IF signals to match what the CRS-400 does to the terrestrial data signals. Table 2-3 provides the pinout information.

WITCH CONTROL CONNECTOR

Table 2-3 IF Switch Control Connector, 25-Pin D Type Male

Pin # Condition

Enable

5 Clock

17 Serial Data

4 Mod_Backup 8 Demod_Backup 3 Rev_Bit0, (for PCA hardware revision control)

18 Rev_Bit1

6 Rev_Bit2

19 Rev_Bit3

7 Product_ID_Bit0, (for IF switch identification) 20 Product_ID_Bit1 21 IF Switch Present

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Pin # Condition

10, 22 +5V input 12, 24 +12V input 11, 13 Ground

1, 2, 9, 14, 15 No Connection

2.6.5 R

The Remote Control connector provides access to the remote control ports of the switch, both EIA-232 and EIA-485. Table 2-4 provides the pinout information.

EMOTE CONTROL CONNECTOR

Table 2-4 Remote Control Connector, 9-Pin D Type Male

Pin Description

1 Ground 9 EIA-485 Transmit Data B 8 EIA-485 Transmit Data A 5 EIA-485 Receive Data B 4 EIA-485 Receive Data A 2 EIA-232 Transmit Data 3 EIA-232 Receive Data 6 Not connected 7 Not connected

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2.6.6 A

This connector is used for switch remote control of each SDM-2020 modulator or demodulator. This remote communication is fixed at a rate 19200 Baud with 7-E-2 character format. Ensure that each mod/demod is set for EIA-485 4-wire communications and the matching protocol and baud rate.

The pinout for EIA-485 communication at the switch is the same as the remote control on the SDM-2020 modems. Table 2-5 provides the pinout information.

UXILIARY SERIAL CONNECTOR

Table 2-5 Auxiliary Serial Connector/Pass-Through, Cable # PL/9195-1

CRS-400

9-Pin D

Male Description VO

9 EIA-485 Receive Data B I 8 EIA-485 Receive Data A I 5 EIA-485 Transmit Data B O 4 EIA-485 Transmit Data A O

ASS-THROUGH

/ P

1 Ground 2 Not connected 3 Not connected 6 Not connected 7 Not connected

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2.7 TMI M

The following paragraphs describe settings for any of the individual TMI modules that require jumper or other installation settings on the module.

2.7.1 HSSI M

An outline drawing of the HSSI interface is shown in Figure 2-4. The jumper settings are explained in Table 2-6 and Table 2-7.

 Recommended Setting: CA looped to TA at J5.

J5 User DataInterface

J7 De mod

J6 Mod / Modem

Terrestrial Modem Interface (TMI)

ODULES

ODULE

J10 J9

On Line

Bridged

CRS-400.

HSSI TMI

Jumpers Shown In

Default Position

Figure 2-4 HSSI TMI Module

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Table 2-6 HSSI TMI Jumper Selection (TA/CA)

TA/CA Selection J1 Jumpers J2 Jumpers J3 Jumpers

Default: CA Looped to TA at J5 5 - 6

Modulator Only or Mod/Demod. J5-TA to Modulator, CA From Modulator to J5.

Demodulator Only. CA from Demod to J5 (TA ignored)

Table 2-7 HSSI TMI Jumper Selection (RT/RD)

RT/RD Selection J9 Jumpers J10 Jumpers

Default: RT/RD from Demod 5 - 6

RT/RD from Modem (Full Duplex at J6)

7 - 8 1 - 2

3 - 4

1 - 2 3 - 4

7 - 8 1 - 2

3 - 4

1 - 2 3 - 4

5 - 6 7 - 8

1-2 3-4

1 - 2 3 - 4

None 5 - 6

7 - 8

5 - 6 7 - 8

1 - 2 3 - 4

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2.8 RMI M

The following paragraphs describe settings for any of the individual RMI modules that require jumper or other installation settings on the module.

2.8.1 HSSI M

Figure 2-5 shows the RMI module, Table 2-8 and Table 2-9 describe the jumper settings on the module.

ODULES

ODULE

Figure 2-5 HSSI RMI Module

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Table 2-8 HSSI RMI Jumper Selection

TA/CA Selection J1 Jumpers

Default: Modulator Only or Mod/Demod. CA From Modulator to J6.

Demodulator Only. CA from Demod to J7 (TA ignored)

1 - 2 3 - 4 5 - 6 7 - 8

Table 2-9 HSSI TMI Jumper Selection (RT/RD)

RT/RD Selection J9 Jumpers J10 Jumpers

Default: RT/RD from Demod 5 - 6

7 - 8

RT/RD from Modem (Full Duplex at J6)

1 - 2 3 - 4

5 - 6 7 - 8

1 - 2 3 - 4

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2.9 C

ONNECTING THE CABLES

WARNING

All Mods/Demods must be the same model and contain the same software revision so that the Redundant Mod/Demod can properly mimic all traffic Mods/Demods.

2.9.1 HSSI C

Connect HSSI data cables between each traffic Mod/Demod and TMI card.

Connect a HSSI data cable between the redundant Mod/Demod and the RMI card.

Replace any unused cards with blank panels .

Connect the multidrop cable (PL/WR9212-1) from the Pass-Through connector to each SDM-2020 remote port.

Do not connect the IF ports at this time.

Apply power to the Mods/Dem ods only.

Table 2-10 lists connections made between the CRS-400 and SDM-2020 units.

Ensure that all power to the equipment is off.

ONNECTION

Table 2-10 CRS-400 to SDM-2020 Data Connection

From To

Switch Connectors

TMI J5 (User) J6 J7 RMI J6 J7 Controller Remote (User) Remote Pass-Through IF Sw Control System Alarms (User)

SDM-2020

Mod Only Demod Only Mod + Demod

J3, Mod

J3 Demod

J3, Mod

J3, Demod

Future

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2.10 C

IMPORTANT

Note:

ONFIGURING THE MODS/DEMODS

For correct operation of the CRS-400, the Mods/Demods must have the following Firmware versions installed:

Feature CRS-400 SDM-2020

HSSI M&C Firmware

75 Ohm Data Ver xxx

Backplane xxx

If the Mods/Demods do not meet this requirement, please contact the factory.

Configure these parameters for the SDM-2020 Mod/Demod remote control interfaces: EIA-485: 4-wire Rate: 19200 Baud Format: 7 Data Bits, Even Parity, 2 Stop Bits ( 7-E-2 )

These values are the default settings for the SDM-2020

Utility/System menu, REMOTE BAUD RATE/PARITY settings.

Minimum Revision

Mod

Ver 8.1.6 M&C Firmware

newer than April 2001

IRMWARE VERSIONS

– F

SDM-2020 Demod

M&C Firmware Ver 22.2.1

M&C Firmware newer than April 2001

Future Future

Mod Remote Address: Positions 1 through 8, set Addresses 1 through 8, with the Redundant Modulator at Address 9

Demod Remote Address: Positions 1 through 8, set Addresses 11 through 18, with the Redundant Demodulator at Address 19

The switch is now ready for the next procedure, Applying Power to the Switch.

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2.11 A

Note:

With the terrestrial cabling complete and the Mods/Demods powered on, but the IF ports still unconnected, applying power to the CRS-400 is the next procedure. The auto-sensing AC power supplies do not require any adjustments.

1 2

The switch should show a green Unit Status. The IEC line input connector for each Power Supply Module contains the ON/OFF

switch for that module. It is also fitted with two fuses, one each for line and neutral connections (or L1, L2, where appropriate). These are contained within the body of the connector, behind a small plastic flap.

 For 115/230 volt AC operation, use T1A fuses, (slow-blow) 20mm fuses.

WARNING

PPLYING POWER TO THE SWITCH

Each CRS-400 is shipped with two power supplies, and it is recommended that both be

used for maximum reliability.

Plug in the supplied line cords. Turn on the switches on the rear panel.

For continued operator safety, always replace the fuses with the correct type and rating.

2.11.1 S

If only one power supply module is used, mask the fault for the unused power supply as follows:

1 2

The switch is now ready for the next procedure, Configuring the Switch.

INGLE POWER SUPPLY OPERATION (TEST

Go to the CONFIG, OPTIONS, MASKS, SW-ALARMS menu. Select the unused power supply.

)

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2.12 C

The unit was shipped with the following default configuration:

 No units (mods/demods) are active.  The switch was set to Manual operating mode. (This Manual setting causes the Stored

The TMI modules have internal jumpers to be configured. Use the front panel keypad and display to configure the switch as described in the following paragraphs.

2.12.1 A

IMPORTANT

1 2

ONFIGURING THE SWITCH

Event LED to blink.)

CTIVATE DESIRED TRAFFIC MODS/DEMODS

Ensure that the redundant mod/demod installation is complete prior to activating any traffic mods/demods, because an active unit is going to be polled regularly by the switch.

Go to the CONFIG, ACTIVE menu. Activate all desired traffic Mods/Demods. After ENTER is pressed, the Switch Status LED briefly turns red. The switch then polls each

of the activated Mods/Demods, and programs the bridged Mod/Demod configuration into the redundant Mod/Demod.

2.12.2 V

The LEDs are arranged in columns corresponding to each modulator and demodulator, and should accurately reflect the status of each.

2 3

Once the programming is completed successfully, the red LED turns green.

: The Demod takes several seconds to configure. If the LED remains red, check the

Note

communication status using the (MONITOR: COMM-STATE) menu.

ERIFY REMOTE COMMUNICATIONS TO EACH ACTIVE MOD/DEMOD

Verify that the Status LED for each modulator and demodulator shows a green light, indicating no faults.

Verify that the Online LED is lit Verify that the Online LED is not lit

CRS-280 IF switch). Verify that the Bridge LED is lit for only one traffic Mod/Demod.

for all connected TMIs.

for the redundant Mod/Demod (for systems not using the

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Notes:

The switch is now ready for the next procedure, Configuring the IF Carriers.

2.13 C

Next, configure the IF carriers for all the Mods/Demods. There are two configuration methods: single transponder and multiple transponders.

For a single transponder, all the Mods/Demods are connected to the same up/down converter.

For multiple transponders, the Mods/Demods may be grouped and connected in various combinations to multiple up/down converters. The CRS-280 IF Switch is required for multiple transponder operation.

Proceed with the transponder configuration method applicable to your system.

Use the INFO and MONITOR menus to view the status of the mods/demods, in addition

to viewing the LEDs. Use MONITOR: COMM-STATE to verify the devices that are responding via remote

control.

ONFIGURING THE

IF C

ARRIERS

2.13.1 C

2.13.1.1 T

2 3

IMPORTANT

2.13.1.2 R

1 2

When a traffic Modulator is taken offline, its Transmit IF shuts down automatically and is replaced by the redundant Modulator IF.

ONFIGURING AND CABLING FOR A SINGLE TRANSPONDER

RANSMIT SIDE

Configure each Modulator’s transmit settings to the proper data rate, IF frequency and output power level.

Combine the carriers (with user-supplied BNC cables) into a single power combiner. Feed the output of the combiner to the up converter.

Ensure that the impedance for the Mods/Demods’ cables and combiner are the same to prevent problems resulting from a mismatch.

ECEIVE SIDE

Attach the output of the down converter (with user-supplied BNC cables) to a single splitter. Feed the output of the splitter into the Receive IF ports of the Demodulators.

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2.13.2 C U

The CRS-280 provides complete isolation of the IF signals. The redundant Mod/Demod IF signals are routed to the traffic Mod/Demod IF path when the RMI is online.

Once connected, the CRS-400 automatically senses the presence of the CRS-280. The CRS-400, upon switching, leaves the offline modulator with its RF on, and the CRS-280 switch relays isolate any undesired signals.

1 2 3

The same IF connections are used between the CRS-280 and all modems as shown in Table 2-11.

ONFIGURING AND CABLING FOR MULTIPLE TRANSPONDERS SING THE

Connect the CRS-280 to the CRS-400 with a 25-pin control cable. Refer to Table 2-11 for a complete listing of the CRS-280 IF connections. Connect the Transmit and Receive IF of each Mod/Demod to the CRS-280 with the correct IF

cables.

From CRS-280 To Other To Modulator

Tx BU - Tx IF, Ch Bu Rx1 Rx IF, Ch1

CRS-280 T

Table 2-11 CRS-280 IF Switch Connections

RANSPONDER SWITCH

From CRS-280 To Demodulator

Tx1 - Tx IF, Ch1 Rx2 Rx IF, Ch1 Tx2 - Tx IF, Ch2 Rx3 Rx IF, Ch2 Tx3 - Tx IF, Ch3 Rx4 Rx IF, Ch3 Tx4 - Tx IF, Ch4 Rx5 Rx IF, Ch4 Tx5 - Tx IF, Ch5 RxBu Rx IF, Ch Bu Tx6 - Tx IF, Ch6 Rx6 Rx IF, Ch5 Tx7 - Tx IF, Ch7 Rx7 Rx IF, Ch6 Tx8 - Tx IF, Ch8 Rx8 Rx IF, Ch7

Tx9 (Not Used) - - Rx9 (Not Used) -

Tx10 (Not Used) - - Rx10 (Not Used) -

Switch Control

CRS-230

IF Switch Control

- - -

Once the applicable transponder configuration and cabling has been completed, the switch is ready for the next procedure, Configuring Automatic Operation Mode.

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2.14 C

After the IF cabling is finished, the system should be completely operational; however, it is still operating in Manual mode. While in Manual mode, the switch does not automatically react to any traffic Mod/Demod failures it detects.

Comtech EF Data recommends that an unattended system be set to operate in Auto mode.

2.14.1 S

When Auto mode is enabled, the first active Mod/Demod that fails is first bridged by the redundant Mod/Demod, then backed up. To enable Auto mode:

1 2

Additional configuration settings are useful for fine-tuning the switch’s Auto mode. These settings, Backup Holdoff, Restore Holdoff, Alarm Mask, and Restore Time are described next.

2.14.2 B

ONFIGURING AUTOMATIC OPERATION MODE

ET AUTO MODE ON

Go to the CONFIG, AUTO menu and turn on Auto mode. Verify that the Stored Event LED stops blinking.

ACKUP HOLDOFF OPERATION

When in Auto mode, additional delays may be introduced to the backup procedure by setting the number of seconds for a “backup holdoff”. The default backup holdoff period is five seconds (a minimum of 2 seconds is allowed).

If a traffic modulator or demodulator fails, the switch waits for the backup holdoff time to determine two things: 1) does the traffic Mod/Demod remain faulted, and 2) is the redundant Mod/Demod not exhibiting the same fault? If the answer is yes to both questions for the entire backup holdoff time, then the switch places the traffic onto the redundant Mod/Demod.

The switch performs the actual backup as follows: First, the faulty unit is bridged. Second, the faulty unit is backed up. Holdoff times prevent unwarranted backups due to an intermittent fault, or due to a transmit fault detected by both demods, which cannot be resolved by switching.

2.14.2.1 S

1 2

ET THE BACKUP HOLDOFF PERIOD

Go to the CONFIG, OPTIONS, HOLDOFFS menu. Change the BACKUP HOLDOFF to any number in the range of 2 to 99 seconds.

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2.14.3 125

2.14.4 R

The “Restore Holdoff” setting, which is also programmable from 2 to 99 seconds, determines the switch’s ability to automatically put a backed up traffic Mod/Demod online again if its fault goes away. Normally, a failed Mod/Demod that was taken offline will remain offline indefinitely (unless the Auto-Restore feature is enabled). If the fault goes away, traffic will be returned to the unit (in Auto mode) if another traffic Mod/Demod fails. The switch places the originally failed Mod/Demod back online if its fault has been clear for the full programmed Restore Holdoff time. The redundant Mod/Demod can then be used to backup a newly failed Mod/Demod.

The switch has no prioritization scheme, so that multiple traffic Mod/Demod failures are treated on a “first come, first serve” basis only. If the redundant unit is set to bridge the highest priority circuit, switching time will be minimized in the event of a failure. If two faults occur simultaneously, and are both sustained for the holdoff time, the lower number circuit will be backed up.

2.14.4.1 S

1 2

ESTORE HOLDOFF OPERATION

ET THE RESTORE HOLDOFF PERIOD

Go to the CONFIG, OPTIONS, HOLDOFFS menu. Change the RESTORE HOLDOFF to any number in the range of 2 to 99 seconds.

2.14.5 A

Another way to adjust the switch’s reaction in Auto mode is to mask Mod/Demod faults. The user may disable modulator, demodulator, or both fault types so that the switch does not react to them. This masking prevents the switch from taking automatic action and prevents the logging of the faults in the stored events list.

Note

2.14.5.1 S

1 2

Note

Once the switch has been installed and setup has been completed, regular operation may begin. Please refer to Chapter 3, Operation, for more information.

LARM MASKING

: These masks are global to all the Mods/Demods attached to the switch.

ET THE ALARM MASKS

Go to CONFIG, OPTIONS, MASKS, MODEM-ALARMS. Set the mask parameters as desired.

: Please read the manual for the SDM-2020 also. Details of the modulator and

demodulator equipment operation are not covered in the CRS-400 manual.

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Chapter 3. Operation

Front Panel Display Front Panel Keys LED Indicators Menu Trees Flash Upgrading

3.1 F

RONT PANEL DISPLAY

Users can fully control and monitor the CRS-400 from the front panel using the display and keypad. The display has two lines each of 24 characters:

COMTECH CRS-400 SWITCH

SN 123456789 VER 1.01

35 37 38 39 42

On most menu screens, users see a flashing, solid-block cursor. This indicates the currently selected item, digit, or field:

CONFIG: MANUAL AUTO[OFF]

ACTIVE REMCONT OPTIONS

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Where this solid block cursor would obscure the item being edited (for example, a numeric field) the cursor will automatically change to an underline cursor.

ACTIVE MODEMS: (ENTER)

1 2 3 – 5 6 - 8

To prevent the display from becoming burnt by a constant image, the unit employs a screen saver feature. After one hour, the screen saver activates. The top line of the display shows the Switch ID (which can be entered by the user), and the bottom line shows the

current status of the switch followed by the message “Press any key....”.

------------------------

Press any key-----------

The message moves across the screen constantly. Press any key to restore the previous screen.

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3.2 F

RONT PANEL KEYS

The keypad contains six individual key switches mounted behind a sealed membrane overlay. The keys have a positive “click” action for tactile feedback. These six switches are identified as follows:

UP ARROW

DOWN ARROW

RIGHT ARROW

LEFT ARROW

ENTER

CLEAR

ENT

CLR

Edits the value at the current cursor position, if appropriate. Increments the value of a numeric field.

Edits the value at the current cursor position, if appropriate. Decrements the value of a numeric field.

Moves the cursor to the right, when it is displayed.

Moves the cursor to the left, when it is displayed.

Accepts an edited entry. Most menus prompt users to press this key by displaying the text (PRESS ENTER), (ENTER) or (ENT). Press ENT to accept the entry and display the previous menu.

Exits the current operation and dis p lays the previous menu without accepting any configuration changes.

IMPORTANT

The keypad has an auto-repeat feature. If a key is held down for more than 1 second, the key action will repeat, automatically, at the rate of 15 keystrokes per second. This is particularly useful when edit in g num er ic fields .

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3.3 LED I

NDICATORS

Table 3-1 describes the three LEDs at the top left of the front panel. These LEDs reflect the condition of the switch itself.

Table 3-1 Switch LED Indicators

LED Color Condition

Unit Status

Stored Event

Remote

Red A Switch Fault exists Example: PSU fault or COMMS failure Green No Switch Faults Off No Stored Events, Auto S witc hi ng On

Orange Orange

Flashing Off

Orange

Stored Events exist for the switch. Solid Orange or Off indicates switch is in Auto mode.

Switch is in Manual mode. Switch is in Local Mode, remote monitoring is possible, remote

configuration control is not allowed Switch is in Remote Mode, configuration changes are disabled via the

front panel keypad

The front panel contains 3 LEDs (Status, On Line, Bridge) for each traffic modulator and demodulator connected to the rear of the switch, and 2 LEDs (Fault, On Line) each for the redundant modulator and demodulator. All of these LEDs are described in Table 3-2.

Table 3-2 Transmit and Receive Traffic Mod/Demod LED Indicators

LED Color Condition

Red A Unit Fault exists

Status

On line

Bridge

Green No Unit Fault

Orange TMI is installed but Unit not active

Off TMI is not installed

Green The Unit is On Line, and ready to carry traffic

Off The Unit is Off Line (standby) - forced by the Switch

Orange

(or Yellow)

Off Unit is not being Bridged

Unit is currently being Bridged by Redundant Unit

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3.4 M

ENU TREES

Nested menus display all available options and prompt users to carry out required actions. Figure 3-1 and Figure 3-2 show the menu structure for both dependent and independent

switching modes of operation. See Appendix A for detailed descriptions of the individual menu commands and related

options.

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CRS-400 Menu Tree

SWITCH MODE: "INDEPENDENT"

SELECT:

CONFIGURE

INFORMATION

MONITOR

STORE/LOAD

UTILITY

CONFIGURE:

MANUAL ACTIVE AUTO REMOTE CONTROL OPTIONS

INFORMATION:

SWITCH ID SETUP IF SWITCH REMOTE CONTROL MASKS

MONITOR:

STATUS SWITCH ALARMS STORED EVENTS COMM STATE

MANUAL SELECT:

MODS DEMODS

ACTIVE MODEM SELECT:

MODS DEMODS

OPERATING MODE:

AUTO ON AUTO OFF

REM CONTROL:

LOC/REM SETTINGS:

OPTIONS:

SWITCH MODE HOLDOFFS MASKS RESTORE TIME

MANUAL MOD SELECT:

BRIDGE (MOD NUMBER) or BACKUP: (MOD NUMBER)

MANUAL DEMOD SELECT:

BRIDGE (DEMOD NUMBER) or BACKUP: (DEMOD NUMBER)

ACTIVE MODS:

(SELECT ACTIVE MODS)

ACTIVE DEMODS:

(SELECT ACTIVE DEMODS)

SETTINGS:

FORMAT BAUD INTERFACE TYPE ADDRESS

SWITCH MODE:

INDEPENDENT DEPENDENT

HOLDOFFS:

STORE/LOAD:

STORE LOAD

UTILITY:

REAL-TIME CLOCK EDIT SWITCH ID DISPLAY BRIGHTNESS POLLING ON/OFF

IF SWITCH:

ABSENT PRESENT

STORED EVENTS:

VIEW CLEAR ALL

BACKUP HOLDOFF TIME RESTORE HOLDOFF TIME

MASKS:

MODEM ALARMS SWITCH ALARMS AUDIO

RESTORE TIME:

OFF/ON TIME SETTING

Figure 3-1 Principle Menus Tree for Independent Mode

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CRS-400 Menu Tree

SWITCH MODE: "DEPENDENT"

SELECT:

CONFIGURE

INFORMATION

MONITOR

STORE/LOAD

UTILITY

CONFIGURE:

MANUAL ACTIVE AUTO REMOTE CONTROL OPTIONS

INFORMATION:

SWITCH ID SETUP IF SWITCH REMOTE CONTROL MASKS

MONITOR:

STATUS SWITCH ALARMS STORED EVENTS COMM STATE

MANUAL SELECT:

BRIDGE (MODEM NUMBER) or BACKUP (MODEM NUMBER)

ACTIVE MODEM SELECT:

(SELECT ACTIVE MODEMS)

OPERATING MODE:

AUTO ON AUTO OFF

REM CONTROL:

LOC/REM SETTINGS:

OPTIONS:

SWITCH MODE HOLDOFFS MASKS RESTORE TIME

SETTINGS:

FORMAT BAUD INTERFACE TYPE ADDRESS

SWITCH MODE:

INDEPENDENT DEPENDENT

HOLDOFFS:

STORE/LOAD:

STORE LOAD

UTILITY:

REAL-TIME CLOCK EDIT SWITCH ID DISPLAY BRIGHTNESS POLLING ON/OFF

IF SWITCH:

ABSENT PRESENT

STORED EVENTS:

VIEW CLEAR ALL

BACKUP HOLDOFF TIME RESTORE HOLDOFF TIME

MASKS:

MODEM ALARMS SWITCH ALARMS AUDIO

RESTORE TIME:

OFF/ON TIME SETTING

Figure 3-2 Principle Menus Tree for Dependent Mode

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3.5 F

The CRS-400 uses “flash memory” technology internally, so that new firmware can be uploaded to the unit from an external Personal Computer (PC). Flash upgrading makes software updates and new feature additions very simple, and allows updates to be delivered via the Internet, E-mail, or on diskette. It is not necessary to open the unit to perform the upgrade. Simply connect the switch to the serial port of a computer and execute a software utility.

The cable to connect the PC to the switch is the same as is used for normal EIA-232 remote control, and consists of 3 wires between 9-pin D type female connectors. See Chapter 2 for pinout details and an illustration of this cable.

Comtech EF Data distributes the free software utility named CCCFLASH.EXE. It is designed to run under Windows™ 3.1x, Windows 95/98 or Windows NT. This is the same program used to flash upgrade the CDM-550T modem. The latest switch firmware file (for example, 400V102.CCC) is distributed with the flash upgrade utility.

3.5.2 F

LASH UPGRADING

LASH UPGRADE PROCEDURE

Copy both the utility (CCCFLASH.EXE) and the new firmware file to the same subdirectory (folder) on the computer’s hard disk. Do not use the root directory.

2 3 4

Note

3.5.3 F

Full on-line help is provided with CCCFLASH.EXE. Please contact Comtech EF Data Customer Support if you have questions, or for additional assistance.

Connect the switch remote control port to an EIA-232 serial port on the PC. Execute the CCCFLASH.EXE utility. Follow the instructions presented on the screen, and the upload will take place automatically. After the successful upload process, the unit automatically re-starts, running the new version

of firmware.

: During this process, the non-volatile RAM that stores the configuration of the switch

is erased. Re-enter the desired configur atio n parameters.

LASH UPGRADE HELP

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Appendix A. FRONT PANEL OPERATION

DETAILS

OPENING SCREEN SELECT CONFIG INFO (Information) MONITOR STORE/LD (Store or Load Configuration) UTIL (Utility)

A.1 OPENING SCREEN

This screen is displayed whenever power is first applied to the unit:

COMTECH CRS-400 SWITCH SN 123456789 VER 1.01

Press any key to go to the top level selection screen:

SELECT: CONFIG INFO MONITOR STORE/LD UTIL

43 43 44 51 53 55 57

A.2 SELECT

The following choices are presented:

CONFIG (Configuration)

INFO (Information)

MONITOR (Monitor)

STORE/LD (Store/Load)

UTIL (Utility)

This menu branch permits the user to fully configure the switch.

This menu branch permits the user to view information on the switch, without having to go into configuration screens.

This menu branch permits the user to monitor the current status of the switch and view the log of stored events for both the switch and its attached modems.

This menu branch permits the user to store and to retrieve up to 10 different switch configurations.

This menu branch permits the user to perform miscellaneous functions, such as setting the Real-time clock, adjusting the display brightness, etc.

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A.3 CONFIG

CONFIG: MANUAL AUTO[OFF] ACTIVE REMCONT OPTIONS

The sub-branches available are:

MANUAL - allows manual control of the bridge/backup of each active mod/demod. ACTIVE - allows selection of the active mods/demods, or modems. AUTO[ON] - allows auto mode to be turned on or off (off = manual mode). The currently

selected state is always shown on this menu REMOTE - defines the remote control settings. OPTIONS - sets several operating parameters of the switch that pertain to enabling or

disabling the availability of traffic mods/demods, the reporting of faults and time

delays for responding to faults.

The switch may be monitored over the remote control bus at any time. When in Local mode, however, configuration parameters may only be changed through the front panel. Conversely, when in Remote mode, the

IMPORTANT

unit may be monitored from the front panel, and configuration parameters may only be changed via remote control.

A.3.1 (CONFIG) MANUAL

MANUAL SELECT: BRIDGE:02 BACKUP:02

Use the LEFT/RIGHT keys to select whether to bridge or backup, then use the UP/DOWN keys to scroll through the mod/demod numbers until the desired number is displayed. Press ENTER.

Manual Mode: Both these selections are available when the switch is in Manual mode (Auto is OFF). Numbers for active traffic units are displayed during scrolling, inactive units are skipped.

Auto Mode: In Auto mode, the switch controls the backup function, based on its fault relay activity. Therefore, the BACKUP selection is unavailable. This screen is not available if the switch is currently in Auto Mode AND is backing up a traffic mod/demod.

While the redundant is backing up a traffic unit, and the user, in Manual mode, commands the redundant to change from backup to bridging, an option is shown for using the configuration of the redundant unit to program the offline traffic unit, if desired.

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A.3.2 (CONFIG) AUTO[OFF

OPERATING MODE: AUTO-OFF AUTO-ON (ENTER)

Use this option to turn Auto mode OFF or ON. When Auto Mode is OFF, the switch is said to be in Manual mode, and the following conditions apply:

 The switch does not respond automatically to any mod/demod faults. It simply

performs whatever manual setting was selected on the previous menu.

 The STORED EVENT indicator blinks to alert the user that automatic switching will

not occur.

 If Dependent, the mods/demods are activated as a pair.  If Independent, the mods and demods are each activated separately, as required.

A.3.3 (CONFIG) ACTIVE

ACTIVE MODEMS: (ENTER) 1 2 3 - 5 6 - 8

A TMI must be present in order for a mod/demod to be activated. A “-“ (hyphen) indicates an inactive unit. Move the cursor left/right to the desired unit and press the UP key. The unit number will show in that position. Press ENTER. Similarly, press DOWN to deactivate a unit.

ON]

A.3.4 (CONFIG) REMOTE CONTROL

SELECT REMOTE CONTROL: LOC/REM SETTINGS (ENT)

Select LOC/REM or SETTINGS using the LEFT/RIGHT arrow keys, then press ENTER.

A.3.4.1 (CONFIG, REM CONTROL) LOC/REM

SELECT REMOTE CONTROL: LOCAL REMOTE (PRESS ENT)

If LOCAL is selected, remote control is disabled, but remote monitoring is still possible, so the remote control settings are displayed.

If REMOTE is selected, then remote control is enabled, and the remote control settings are available.

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A.3.4.2 (CONFIG, REM CONTROL) SETTINGS

REMOTE CONTROL: FORMAT BAUD TYPE ADDRESS (ENT)

Because remote monitoring is available at all times, the remote control settings may be set without the need to be in REMOTE mode.

Select FORMAT, BAUD, TYPE, or ADDRESS using the LEFT/RIGHT arrow keys, then press ENTER.

A.3.4.2.1 (CONFIG, REM, SETTINGS) FORMAT

SELECT DATA FORMAT: 8-N-1 7-E-2 7-O-2 (ENT)

Select the data format for the remote control using the RIGHT/LEFT arrow keys, and press ENTER. Possible format choices are listed below:

8-N-1 7-E-2 7-O-2

= 8 data bits No parity 1 stop bit = 7 data bits Even parity 2 stop bits = 7 data bits Odd parity 2 stop bits

A.3.4.2.2 (CONFIG, REM, SETTINGS) BAUD

EDIT SWITCH BAUDRATE: 19200 BAUD (PRESS ENTER)

Edit the baud rate of the remote control bus connected locally to the M&C computer. Change the value using the UP/DOWN arrow keys, and press ENTER.

Possible Baud Values:

300 1200 2400 4800 9600 19200

A.3.4.2.3 (CONFIG, REM, SETTINGS) TYPE

INTERFACE TYPE: RS232 RS485-2W RS485-4W (ENT)

Select RS232, RS485 (2-wire), or RS485 (4-wire). Use the LEFT/RIGHT arrow keys to select an interface type, then press ENTER.

: RS-485 2-wire is available, but not preferred.

Note

In RS232 mode the bus address is fixed at 0, and the following screen is displayed:

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A.3.4.2.3.1 (CONFIG, REM, SETTINGS, TYPE) RS232

IN RS232 MODE THE BUS ADDRESS IS FIXED AT 0000

However, if either RS485 mode is selected, you may edit the bus address:

A.3.4.2.3.2 (CONFIG, REM, SETTINGS, TYPE) RS485

EDIT SWITCH BUS ADDRESS: 3000 (PRESS ENTER)

To edit the RS485 bus address of this unit:

Change the value of the address using the UP/DOWN arrow keys.

Press ENTER.

The only permitted addresses are:

1000 2000 3000 4000 5000 6000 7000 8000 9000

A.3.5 (CONFIG) OPTIONS

OPTIONS: MASKS MODE[IND] HOLDOFFS RESTORE-TIME

Use OPTIONS to select mode and masks, affecting how the switch will react to various faults.

A.3.5.1 (CONFIG, OPTS) MASKS

ALARM MASK: MODEM-ALARMS SW-ALARMS AUDIO (ENTER)

The switch logs and reacts to its own faults and mod/demod faults. Use this sub-menu to mask any of these fault types, and to enable or disable an audible indicator (buzzer).

A.3.5.1.1 (CONFIG, OPTS, MASKS) MODEM ALARMS

MODEM ALARM MASK: NONE MOD DMD BOTH (ENTER)

Use this option to mask traffic faults for MOD (Tx), DMD (Rx), or BOTH, so that the switch will not react to them. Select one of the four options: NONE, MOD, DMD, or BOTH.

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Masking faults will prevent the switch from performing Auto mode functions when these mod/demod faults are sensed, and it keeps the faults from being logged by the switch. Unmasked mod/demod faults are logged in the switch events log for activated units.

A.3.5.1.2 (CONFIG, OPTS, MASKS) SWITCH ALARMS

SWITCH ALARM MASK: NONE Å PSU-A PSU-B Æ (ENTER)

To have the switch ignore an out-of-range voltage output condition for one of the power supplies, use this option. Only one of the units can be masked at a time.

Normally, this mask is useful for operating with only one power supply, or if a supply must be removed for service or replacement.

A.3.5.1.3 (CONFIG, OPTS, MASKS) AUDIO

AUDIO MASK: NONE SW-ALMS MODEM-ALMS BOTH (ENTER)

This options controls which, if any, alarm types should cause an audible alarm (buzzer) to sound when the switch detects the alarm condition. This option can be set for unmasked, or switch and/or mod/demod alarms.

The buzzer is located behind the front panel. In addition, a relay closure to ground activates on pin 20 of the System Alarms connector, so that other indicators can be attached to the audible alarm.

A.3.5.2 (CONFIG, OPTS) SWITCH MODE

SELECT SWITCH MODE: DEPENDENT INDEPENDENT

With the DEPENDENT mode setting, the switch will back up a faulted modulator or demodulator with both the redundant modulator and demodulator.

With the INDEPENDENT mode setting enabled, the switch will back up a faulted modulator only with the redundant modulator, or backup a faulted demodulator only with the redundant demodulator.

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A.3.5.3 (CONFIG, OPTS) HOLDOFFS

BACKUP HOLDOFF SEC: 05 RESTORE HOLDOFF SEC: 10

Use HOLDOFFS to set the holdoffs, or delay times, between the switch’s modem alarm detection and its reactions to the alarm. Both holdoffs can be set from 2 to 99 seconds.

Holdoffs are only applicable when the switch is in Auto mode.

Note:

Backup Holdoff

Restore Holdoff

When an active mod/demod exhibits an unmasked fault, the switch bridges it

with the redundant unit and checks that the latter is not also faulted. If no

fault is detected in the redundant unit, the Backup Holdoff determines how

long the switch will wait before performing the actual backup, or switchover

of traffic, to the redundant mod/demod.

The switch continues to back up a faulted traffic mod/demod even after the

fault clears, unless another active mod/demod becomes faulted. In this case,

the Restore Holdoff is the length of time that the originally faulted

mod/demod must stay unfaulted before the switch will automatically put it

back online so that the redundant mod/demod is available to bridge the newly

faulted mod/demod.

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A.3.5.4 (CONFIG, OPTS) RESTORE-TIME

RESTORE TIME: [OFF] OFF/ON SET-TIME (ENT)

RESTORE TIME: [24hr clk] 02:10 (PRESS ENTER)

: The RESTORE feature is only active in Auto mode.

Note

If the switch is set for Auto mode and a sustained fault occurs, it will switch to back-up and stay there until any further fault occurs, or the user intervenes (taking the switches to Manual and then selecting to switch from backing up to bridging a unit).

Enabling the RESTORE TIME setting allows the switch to automatically restore operation from backup to the main traffic unit at a selected time, if all the faults are cleared.

Select OFF to disable or ON to enable the RESTORE TIME feature and press ENTER. If RESTORE TIME is ON, set the time (using the 24-hour clock) when the automatic restoral should occur, and press ENTER.

: Set the RESTORE TIME for a time when traffic is low; for example, 2:00 a.m.

Note

If enabled, and in Auto mode, at the RESTORE TIME, the offline traffic unit is configured to match the configuration of the redundant unit. This is done in case the unit has come back from repair. It has been activated, but the user may not know the correct configuration. It is then checked to see that there are no faults. If there are no faults, the unit is brought online, freeing up the redundant unit.

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A.4 INFO (I

INFO: SWITCH-ID SETUP IF-SWITCH REMCONT MASK

NFORMATION

Select an INFO parameter to view, using the LEFT/RIGHT keys, then press ENTER. INFO screens display information on the current configuration of the switch without

risking inadvertent changes.

A.4.1 (INFO) SWITCH-ID

SWITCH ID: THIS IS A TEST MESSAGE

This displays the user-defined Switch ID string, which is entered via the UTILITY, SWITCH-ID screen. To return to the previous menu, press ENTER or CLEAR.

A.4.2 (INFO) SETUP

MOD:123---78 DE:12-------8

AUTO:OFF BH:05 RH:20 IND

)

The information on this screen reflects some of the settings configured in the CONFIG, OPTIONS menu. Active traffic mods/demods are listed on the top line, while Auto mode, times for Backup Holdoff and Restore Holdoff, and Independent or Dependent mode are listed on the bottom line.

A.4.3 (INFO) IF-SWITCH

IF-SWITCH IS ABSENT

IF-SWITCH IS PRESENT

This screen shows whether an IF Transponder Switch is connected to the CRS-400 1:8 Redundancy Switch. When an IF switch is present, the CRS-400 does not exert transmit IF control for an offline mod, the IF switch manages that. There are two models of IF switch: CRS-280 (70/140) and CRS-282 (L-band).

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A.4.4 (INFO) REMCONT (R

REM CNTL: REMOTE RS485-4W ADDRESS: 5000 19200 8N1

This screen shows whether the unit is in LOCAL or REMOTE mode, and gives details of the interface type selected, the switch address, the baud rate and character format. Press ENTER or CLEAR to return to the previous menu.

A.4.5 (INFO) MASKS (A

ALARMS MASKED: MOD DMD Å PSU-A PSU-B Æ

This screen shows which alarms are currently masked. If an alarm is not masked, a blank is displayed in the relevant screen position. Power Supplies A and B cannot be masked at the same time, but are shown together here to indicate their relative positions.

LARM MASK INFO

EMOTE CONTROL INFO

)

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A.5 MONITOR

MONITOR: STATUS SW-ALARM STORED-EVENTS COMM-STATE

Select a parameter to monitor using the LEFT/RIGHT arrow keys, then press ENTER.

A.5.1 (MONITOR) STATUS

RM BRIDGING MOD:1 BH:05s RD BRIDGING DMD:4 BH:05s

This screen shows the current status of the switch. When the redundant mod/demod is not backing up any of the traffic mods/demods, the

display shows which TM is currently being bridged by the RM. If Auto mode is on, it will also show the backup holdoff time should the bridged TM fail. If Auto mode is off, Backup Holdoff (BH) displays “OFF”.

When the switch has taken the bridged TM offline and replaced it with the RM (whether manually or automatically), the screen changes as shown below:

RM BACKG UP MOD:1 RH:05s RD BACKG UP DMD:4 RH:05s

Note that the Restore Holdoff (RH) times are shown.

A.5.2 (MONITOR) SWI T CH ALARMS

SWITCH ALARM: MOD I/O PROBLEM

SWITCH ALARM: DEMOD I/O PROBLEM

(or power supply fault) To decode an I/O fault, go to MONITOR: COMM-STATE.

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A.5.3 (MONITOR) STORED EVENTS

STORED EVENTS: VIEW CLEAR-ALL (PRESS ENTER)

Select VIEW or CLEAR ALL, using the LEFT/RIGHT arrow keys, then press ENTER. CLEAR ALL does not prompt for confirmation–the command acts immediately.

A.5.3.1 (MONITOR, STORED-EVENTS) VIEW

LOG23: 26/01/00 10:37:32 FT-06 DMD ALARM (UP/DN)

Use the UP/DOWN arrow keys to scroll backwards or forwards through the entries in the event log. To return to the previous menu, press ENTER or CLEAR.

The event log can store up to 98 events. When a fault condition occurs, it is time-stamped and put into the log. Next to the FT (for fault) indicator is either the TM number, RM (redundant mod/demod fault) or SW (switch fault). Similarly, when the fault condition clears, this is also recorded, as shown below:

LOG23: 26/01/00 10:37:35 OK-06 DMD ALARM (UP/DN)

To clear the Event Log, select CLEAR-ALL. The previous menu returns. However, if there are faults present on the unit at this time, they will be re-time-stamped,

and new log entries will be generated.

Note:

In accordance with international convention, the date is shown in DAY-MONTH-YEAR format.

A.5.4 (MONITOR) COMM-STATE (C

COMMS OK: MOD:1234-!--R DMD:--345678R

This screen indicates which mods/demods have good EIA-485 I/O communications with the switch.

An exclamation mark (!), if present, indicates the position of an I/O communications problem. This is a position that has been activated, but a unit is not responding:

 Check the bus address and communications settings

OMMUNICATIONS

)

 Check that the bus cable is properly attached.

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A.6 STORE/LD (S

STORE/LOAD CONFIG: STORE LOAD (PRESS ENTER)

TORE OR LOAD CONFIGURATION

Select STORE or LOAD using the LEFT/RIGHT arrow keys, then press ENTER. The switch can store up to 10 different switch configurations in non-volatile memory.

These are configurations for the switch itself, not the modems attached to it. Switch configurations contain the information for active units, bridge/backup units, backup holdoff, restore holdoff, etc. For more information, see the Switch Global Configuration remote command in Section B.6, Remote Control Commands.

A.6.1 (STORE/LD) STORE

STORE CONFIGURATION TO LOCATION: 10 (ENTER)

Select the location to store the current configuration to, using the UP/DOWN arrow keys, then press ENTER.

Available Locations:

)

1 2 3 4 5 6 7 8 9 10

If the selected location does not contain a previously stored configuration, the following screen is displayed:

YOUR CONFIGURATION HAS BEEN STORED! (ENTER)

To return to the previous menu, press ENTER or CLEAR. If, however, the selected location contains a previously stored configuration, the

following screen is displayed:

WARNING! LOC 10 CONTAINS DATA. OVERWRITE? NO YES

Select NO or YES using the LEFT/RIGHT arrow keys, then press ENTER. Selecting YES will overwrite the existing configuration at the selected location.

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A.6.2 (STORE/LD) LOAD

LOAD CONFIGURATION FROM LOCATION: 10 (ENTER)

Select the location to load a configuration from, using the UP/DOWN arrow keys, then press ENTER.

Available Locations:

1 2 3 4 5 6 7 8 9 10

If the selected location contains valid data, the following screen will be displayed:

THE NEW CONFIGURATION HAS BEEN LOADED (ENTER)

To return to the previous menu, press ENTER or CLEAR. If, however, the selected location does not contain valid data, the following screen will be

displayed:

WARNING! LOC 10 CONTAINS NO DATA! (ENTER)

To return to the previous menu, press ENTER or CLEAR.

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A.7 UTIL (U

UTILITY: CLOCK SWITCH-ID DISPLAY POLLING (ENTER)

TILITY

)

Select a parameter using the LEFT/RIGHT arrow keys, then press ENTER. Use this sub-menu to select from a number of different utility functions, which are

described in the following paragraphs.

A.7.1 (UTILITY) CLOCK (S

EDIT REAL TIME CLOCK: 12:00:00 24/04/00 (ENT)

To edit the time and date settings of the real-time clock:

Select the digit to be edited using the LEFT/RIGHT arrow keys.

Change the value of the digit using the UP/DOWN arrow keys.

Press ENTER.

: In accordance with international convention, the date is shown in DAY-MONTH-YEAR

Note

format.

ET REAL-TIME CLOCK

)

A.7.2 (UTILITY) SWITCH-ID

EDIT SWITCH ID: (ENTER)

---- THIS IS A TEST ----

To edit the Switch ID string:

Use the Left/Right arrow to select a character position on the bottom line.

Use the Up/Down arrows to edit the selected character.

Once the string edits are finished, press ENTER.

Only the bottom line is available (24 characters).

Note:

Available Characters:

( ) * + - , . / space

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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A.7.3 (UTILITY) DISPLAY (D

EDIT DISPLAY BRIGHTNESS: 100% (PRESS ENTER)

To edit the display brightness, use the UP/DOWN arrow keys. Press ENTER when the brightness is suitable.

A.7.4 (UTILITY) POLLING

POLLING: SUSPEND RESUME WILL RESUME IN 91 SEC

The switch is continually polling units via the EIA-485 bus. To temporarily suspend polling (example: for viewing a redundant unit configuration via the front panel), use the RIGHT/LEFT arrow keys to select SUSPEND, and press ENTER. The second line of the display shows the number of seconds remaining (counting down from 99) before polling will automatically resume.

To resume polling immediately, use the RIGHT/LEFT arrow keys to select RESUME, and press ENTER.

ISPLAY BRIGHTNESS

)

Appendix B. REMOTE CONTROL

Introduction EIA-485 EIA-232 Basic Protocol Packet Structure Remote Control Commands

B.1 I

NTRODUCTION

This section describes the protocol and message command set for remote monitor and control of the CRS-400 Redundancy Switch.

The electrical interface is either an EIA-485 multi-drop bus (for the control of many devices) or an EIA-232 connection (for the control of a single device), and data is transmitted in asynchronous serial form, using ASCII characters. Control and status information is transmitted in packets, of variable length, in accordance with the structure and protocol defined in later sections.

59 59 60 60 61 66

B.2 EIA-485

For applications where multiple devices are to be monitored and controlled, a full-duplex (or 4-wire plus ground) EIA-485 is required. Half-duplex (2-wire plus ground) EIA-485 is possible, but is not preferred.

In full-duplex EIA-485 communication there are two separate, isolated, independent, differential-mode twisted pairs, each handling serial data in different directions. It is assumed that there is a ‘controller’ device (a PC or dumb terminal), that transmits data, in a broadcast mode, via one of the pairs. Many ‘target’ devices are connected to this pair, that all simultaneously receive data from the controller. The controller is the only device with a line-driver connected to this pair - the target devices only have line-receivers connected.

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In the other direction, on the other pair, each target has a tri-stateable line driver connected, and the controller has a line-receiver connected. All the line drivers are held in high-impedance mode until one (and only one) target transmits back to the controller.

Each target has a unique address, and each time the controller transmits, in a framed ‘packet’ of data, the address of the intended recipient target is included. All of the targets receive the packet, but only one (the intended) will reply. The target enables its output line driver, and transmits its return data packet back to the controller, in the other direction, on the physically separate pair.

EIA- 485 (full duplex) summary:

 Two differential pairs - one pair for controller to target, one pair for target to

controller.

 Controller-to-target pair has one line driver (controller), and all targets have line-

receivers.

 Target-to-controller pair has one line receiver (controller), and all targets have tri-

state drivers.

B.3 EIA-232

This is a much simpler configuration in which the controller device is connected directly to the target via a two-wire-plus-ground connection. Controller-to-target data is carried, via EIA-232 electrical levels, on one conductor, and target-to-controller data is carried in the other direction on the other conductor.

B.4 B

ASIC PROTOCOL

Whether in EIA-232 or EIA-485 mode, all data is transmitted as asynchronous serial characters, suitable for transmission and reception by a UART. The asynchronous character format may be:

8-N-1 8 data bits, no parity, 1 stop bit 7-E-2 7 data bits, even parity, 2 stop bits 7-O-2 8 data bits, odd parity, 2 stop bits.

The selectable baud rates are 300, 1200, 2400, 4800, 9600 and 19,200 baud.

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All data is transmitted in framed packets. The controller is assumed to be a PC or ASCII dumb terminal, that is in charge of the process of monitor and control. The controller is the only device that is permitted to initiate, at will, the transmission of data. Targets are only permitted to transmit when they have been specifically instructed to do so by the controller.

All bytes within a packet are printable ASCII characters, less than ASCII code 127. In this context, the Carriage Return and Line Feed characters are considered printable.

All messages from controller to target require a response (with one exception). This will be either to return data that has been requested by the controller, or to acknowledge reception of an instruction to change the configuration of the target. The exception to this is when the controller uses Address 0 (universal address) in EIA-485 mode. In this case, the target does not respond.

B.5 P

Character

Number of

Characters

ACKET STRUCTURE

Controller-to-target:

Start

ASCII

Code

Packet

< / = or ?

60 47 61 or 63 13

1 4 1 3 1 n 1

Target

Address

Delimiter

Instruction

Example: <0000/RSH=30{CR}

Code

Qualifier

Optional

Arguments

End of

Packet

Carriage

Return

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Target-to-controller:

Start

Character

Packet

< /

Target

Address

Delimiter

Instruction

Code

Qualifier

=, ?, !

or *

Optional

Arguments

End of

Packet

Carriage

Return

Line

Feed

ASCII

Code

Number of

Characters

Example: >0000/OPM=1{CR}{LF}

B.5.1 S

Controller to Target: This is the character ‘<’ (ASCII code 61) Target to Controller: This is the character ‘>’ (ASCII code 62) Because this is used to provide a reliable indication of the start of packet, these two

characters may not appear anywhere else within the body of the message.

B.5.2 A

While up to 9,999 devices can be uniquely addressed via an EIA-485 bus, the 1:N Redundancy Switch imposes some addressing specifications. The Switch address is x000:

60 47

1 4 1 3 1 From 0 to n 2

TART OF PACKET

DDRESS

61, 63,

33 or 42

3, 10

In EIA-232 applications the switch address is fixed at 0000. In EIA-485 applications, the switch address may be set to 1000, 2000, 3000, 4000, 5000,

6000, 7000, 8000, or 9000. Up to nine switches may be connected on the same bus. The addresses of the modulators and/or demodulators that may be attached to the Switch

must each have its addresses set correctly, according to the Switch address and the unit’s position in the Switch set-up:

x001 for Traffic Mod #1 x011 for Traffic Demod #1 x002 for TM #2 and on up to x012 for TD #2 and on up to x008 for TM #8 and x018 for TD#8 and x009 for the Redundant Mod x019 for the Redundant Demod

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Remote monitor and control of units attached to the Switch is available, transparently via the Switch, to any devices with addresses x001 through x099, attached to the auxiliary EIA-485 link. The command protocol of the messages is dictated by the device being addressed.

Note that in either EIA-232 or EIA-485 mode, the auxiliary link from the switch to all the modems is fixed at EIA-485, 8-N-1, 19200 baud (multidrop).

The modem addresses (001-019) must be set on each mod/demod, via the front panel. Example: To send a message to TM# 1 (front panel address set to 001) attached to the

multidrop cable of switch (address 5000), the controller sends a message using address, 5001, and the responses from the modulator (via the switch) will indicate address 5001.

B.5.3 I

B.5.4 I

NSTRUCTION CODE

This is a three-character alphabetic sequence that identifies the subject of the message. Wherever possible, the instruction codes have been chosen to have some significance. For example, OPM is for OPerating Mode, BKH is for BacKup Holdoff, etc. This aids in the readability of the message if seen in its raw ASCII form. Only upper case alphabetic characters may be used (A-Z, ASCII codes 65 - 90).

NSTRUCTION CODE QUALIFIER

This is a single character that further qualifies the preceding instruction code. Code Qualifiers obey the following rules:

1) From Controller to Target, the only permitted values are:

= (ASCII code 61) ? (ASCII code 63) They have these meanings:

The ‘=’ code (controller to target) is used as the assignment operator, and is used to indicate that the parameter defined by the preceding byte should be set to the value of the argument(s) that follow it. For example, in a message from controller to target, OPM=1 would mean ‘set the OPerating Mode to Auto’

The ‘?’ code (controller to target) is used as the query operator, and is used to indicate that the target should return the current value of the parameter defined by the preceding byte. For example, in a message from controller to target, OPM? would mean ‘what is the current Operating Mode?’

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2) From Target to Controller, the only permitted values are:

= (ASCII code 61) ? (ASCII code 63) ! (ASCII code 33) * (ASCII code 42) # (ASCII code 35)

They have these meanings: The = code (target to controller) is used in two ways:

First, if the controller has sent a query code to a target (for example OPM?, meaning ‘what is the Operating Mode?’), the target would respond with OPM=x, where x is 0 representing Manual mode or 1 representing Auto mode.

Second, if the controller sends an instruction to set a parameter to a particular value, then, providing the value sent in the argument is valid, the target will acknowledge the message by replying with OPM= (with no message arguments).

The ? code (target to controller) is only used as follows:

If the controller sends a correctly formatted instruction to set a parameter, but using an invalid argument, then the target will acknowledge the message by replying (for example) with OPM? (with no message arguments).

The * code (target to controller) is only used as follows:

If the controller sends a correctly formatted instruction, but the unit cannot implement at this time, the target will acknowledge the message by replying (for example) with OPM* (with no message arguments).

The # code (target to controller) is only used as follows:

If the controller sends a correctly formatted instruction, but the unit is not in Remote Mode, the target will acknowledge the message by replying (for example) with OPM# (with no message arguments).

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The ! code (target to controller) is only used as follows:

If the controller sends an instruction code that the target does not recognize, the target will acknowledge the message by echoing the invalid instruction, followed by the ! character with. Example: XYZ!

B.5.5 M

Arguments are not required for all messages. Arguments are ASCII codes for the characters 0 to 9 (ASCII 48 to 57), A to Z (ASCII 65 to 90), period (ASCII 46) and comma (ASCII 44).

B.5.6 E

Controller to Target: This is the ‘Carriage Return’ character (ASCII code 13) Target to Controller: This is the two-character sequence ‘Carriage Return’, ‘Line Feed’.

(ASCII codes 13 and 10). Both indicate the valid termination of a packet.

ESSAGE ARGUMENTS

ND OF PACKET

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B.6 R

EMOTE CONTROL COMMANDS

Parameter Type

Local/ Remote Status

Equipment ID n.a. 4 bytes,

Switch ID string

Operating Mode

Switching Mode

Active Mods ACM= 8 bytes,

Command (controller to target)

LRS= 1 byte,

SID= 24 bytes,

OPM= 1 byte,

SWM= 1 byte,

Argument count

numerical, 0 or 1

ASCII

numerical, 0 or 1

numerical

Description of arg uments Note: All arguments are ASCII numeric codes between 48

and 57.

Command or Query Sets or queries the local/remote status of the Switch: 0 = Local 1 = Remote Query only. Switch returns information concerning the equipment identification, with only a base switch “S400” currently in use. Command or Query. Sets or queries the user-defined Switch ID string, which is a fixed length of 24 characters. Valid characters include: Space ( ) * + - , . / 0-9 and A-Z. Command or Query. Sets the operating mode: 0 = manual mode 1 = auto mode Command or Query. Sets the Switching mode: 0 = Dependent switching – Mods & Demods switched

together

1 = Independent switching – Mods & Demods switched

separately

Note

: can only be changed if the OPM is manual AND there are no units in back-up. ACM settings may be affected. Command or Query. Sets or queries the active state of all 8 Traffic Mods (or Mod & Demods, if Dependent): 0 = de-activate Traffic Mod 1 = activate Traffic Mod

Note

: only active units will be monitored by the switch.

Responses to Command (target to controller)

LRS= LRS? LRS#

n.a. EID? EID=xxxx

SID= SID? SID#

OPM= OPM? OPM* OPM# SWM SWM? SWM* SWM#

ACM= ACM? ACM* ACM#

Query (controller to target)

LRS? LRS=x

SID? SID=xxxxxxxxxxxxxxxxxxxxxxxx

OPM? OPM=x

SWM? SWM=x

ACM? ACM=xxxxxxxx

Response to Query (target to controller)

(see description of arguments)

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Parameter Type

Active Demods

Bridge/Backup Modulator

Bridge/Backup Demodulator

Active Mod Query

Active Demod Query

Command (controller to target)

ACD= 8 bytes,

Argument count

numerical

Description of arg uments Note: All arguments are ASCII numeric codes between 48

Command or Query. Sets or queries the active state of all 8 Traffic Demods: 0 = de-activate Traffic Demod 1 = activate Traffic Demod

Note

Use ACM if in Dependent mode.

BBM= 2 bytes,

numerical

Command or Query. Sets or queries the bridged/backup state for Mods: x = 0/1 indicating bridged/backup of Modulator y = 1-8, the number of Mod that the Redundant Mod is

Note

(see ACM).

BBD= 2 bytes,

numerical

Command or Query. Sets or queries the bridged/backup state for Demods: x = 0/1 indicating bridged/backup of Demodulator y = 1-8, the number of Demod that the Redundant Demod is tracking.

Note

active (see ACD). Use BBM if in Dependent mode.

n.a. 8 bytes,

numerical

Query only. Returns the state of all 8 Traffic Mods, which is usually as set by ACM, but possibly overruled by Switch conditions, where x is: 0 = TMI not present (cannot be activated) 1 = TMI present but Mod/Modem not activated 2 = TMI present, Mod activated and responding 3 = TMI present, Mod activated but NOT responding

n.a. 8 bytes,

numerical

Query only. Returns the state of all 8 Traffic Demods, which is usually as set by ACD, but possibly overruled by Switch conditions, where x is: 0 = TMI not present (cannot be activated) 1 = TMI present but Demod not activated 2 = TMI present, Demod activated and responding 3 = TMI present, Demod activated but NOT responding

Use AMQ if in Dependent mode.

and 57.

: only active units will be monitored by the switch.

tracking.

: requires TMIs to be present, & mods to be active

: requires TMIs to be present, & demods to be

Responses to Command (target to controller)

ACD= ACD?

Query (controller to target)

Response to Query (target to controller)

ACD? ACD=xxxxxxxx

(see description of arguments) ACD* ACD#

BBM= BBM?

BBM? BBM=xy

(see description of arguments) BBM* BBM#

BBD= BBD?

BBD? BBD=xy

(see description of arguments) BBD* BBD#

n.a. AMQ? AMQ=xxxxxxxxy

(see description of arguments)

y indicates the Redundant unit/RMI state, similarly, but activati on is

assumed.

n.a.. ADQ? ADQ=xxxxxxxxy

(see description of arguments)

y indicates the Redundant unit/RMI state, similarly, but activati on is

assumed.

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Parameter Type

Backup Holdoff Time

Restore Holdoff Time

Switch Global Configuration

Modem Alarm Mask

Switch Alarm Mask

Command (controller to target)

BKH= 2 bytes

Argument count

numerical,

Description of arg uments Note: All arguments are ASCII numeric codes between 48

Command or Query. Sets or queries the backup holdoff delay time, used when Auto Mode prepares to backup a faulted Mod/Demod: xx = 02-99, seconds of delay before online swap

RSH= 2 bytes,

numerical

Command or Query. Sets or queries the restore holdoff delay time. Used in Auto Mode. xx = 02-99 seconds. This is the time for which an offline Traffic Unit must be fault-free before it may be put back online if the Redundant Unit needs to bridge a different newlyfaulted Unit.

SGC= 42 bytes,

numerical

Command or Query. Global configuration of switch, in the form: OmmmmmmmmIMMDDbbrrMSAEttttssssssssdddddddd where:

MAM= 1 byte,

numerical

Command or Query. Sets or queries the mod/demod alarm mask: 0 = No faults masked 1 = Mod faults masked 2 = Demod faults masked 3 = Both Mod & Demod faults masked

SAM= 1 byte,

numerical

Command or Query. Sets or queries the modem alarm mask: 0 = No faults masked 1 = PSU A faults masked 2 = PSU B faults masked

and 57.

begins.

O = Operating Mode – same as OPM= (1 bytes) m = Active Mod/ems – same as ACM= (8 bytes) I = in/dependent Switching Mode – same as SWM (1 byte) MM= Bridge/Backup State – same as BBM (2 bytes) DD= Bridge/Backup State – same as BBD (2 bytes) bb = Backup Holdoff Time – same as BKH (2 bytes) rr = Restore Holdoff Time – same as RSH (2 bytes) M = Modem Alarm Mask – same as MAM (1 byte) S = Switch Alarm Mask – same as SAM (1 byte) A = Audio Alarm Mask – same as AAM (1 bytes) E = Restore Time Enable – same as RTE (1 byte) tttt – Restore Time - same as RTT ( 4 bytes) s = spare byte (8 bytes) d = Active Demods – same as ACD= (8 bytes)

Responses to Command (target to controller)

BKH= BKH? BKH* BKH#

RSH= RSH? RSH* RSH#

SGC= SGC? SGC* SGC#

MAM= MAM? MAM* MAM#

SAM= SAM? SAM* SAM#

Query (controller to target)

Response to Query

(target to controller)

BKH? BKH=xx

(see description of arguments)

RSH? RSH=xx

(see description of arguments)

SGC? SGC=OmmmmmmmmIMMDDbbrrMSAEttttssssssssdddddddd

(see description of arguments)

MAM? MAM=x

(see description of arguments)

SAM? SAM=x

(see description of arguments)

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Parameter Type

Audio Alarm Mask

Retrieve next 5 unread Stored Events

Command (controller to target)

AAM= 1 byte,

Argument count

numerical

Description of arg uments Note: All arguments are ASCII numeric codes between 48

and 57.

Command or Query. Sets or queries the audio alarm mask: 0 = No faults masked (audio enabled in response to

any fault) 1 = Switch faults masked 2 = Modem faults masked 3 = All faults masked (audio never enabled)

n.a. 79 bytes Query only.

Returns the oldest 5 Stored Events which have not yet been read over the remote control. Reply format: {CR}sub-body{CR}sub-body{CR}sub-body{CR}subbody{CR}sub-body, where sub-body = ABCddmmyyhhmmss

A is the fault indicator: F = Fault, C = Clear, I = Info

B is the faulting/clearing Unit: 1-8 = Mod (1-8) 9 = Redundant Mod A-H = Demod (1-8) I = Redundant Demod J = Switch K = Power on/off, or log cleared (Info events)

C is the fault code number , as defined: Switch: 1 through D, the same as FLT? string. Modem: 0 Info: 0= Power off, 1= Power on, 2= Log cleared.

ddmmyy hhmmss indicates the date & time of the event.

If there are no new events, the unit replies with RNE? If fewer than 5 events remain, the last positions are padded with zeros.

Responses to Command (target to controller)

AAM= AAM?

Query (controller to target)

Response to Query (target to controller)

AAM? AAM=x

(see description of arguments) AAM* AAM#

n.a. RNE? RNE=[cr]

ABCddmmyyhhmmss[cr]

ABCddmmyyhhmmss[cr]ABCddmmyyhhmmss[cr]ABCddmmyyhhmmss

(see description of arguments)

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Parameter Type

Retrieve Number of unread Stored Events

Command (controller to target)

n.a. 2 bytes,

Argument count

numerical

Description of arg uments Note: All arguments are ASCII numeric codes between 48

Query only. Switch returns the number of Stored Events which remain unread, in the form xx.

Note

: This means unread over the remote control – viewing the stored events from the front panel of the modem does not affect this value.

Example: NUE=98

Clear All Stored Events

CAE= None Command only (takes no arguments ).

Instructs the unit to clear the Stored Events Log.

Serial Number SNO= 9 bytes

numerical

Query only. (FACTORY USE command) Unit returns its 9 digit serial number. Example: SNO=000001765

Software Revision

n.a. 4 bytes,

numerical

Query only. Unit returns the value of internal software revision installed in the unit, in the form x.xx

Example: SWR=1.03 (Ver 1.03)

Restore Time Enable

RTE= 1 byte,

numerical, 0 or 1

Command or Query. Effective only in Auto Mode (see OPM) If there is a unit is back-up mode and Auto-Restore is enabled:

at the Restore Time, the offline unit will be correctly configured (if necessary) and if it stays unfaulted, it will be switched on-line.

Restore Time RTT= 4 bytes,

numerical

Command or Query. Format is hhmm, using a 24 hour clock. hh = hours, between 00 and 23, and mm = minutes, between 00 and 59.

See RTE above for details.

Date DAY= 6 bytes,

numerical

Command or Query. Format is ddmmyy, where: dd = day of the month, between 01 and 31, mm = month of the year, between 01 and 12 and yy = year, between 97 and 96 (1997 to 2000, then 2000 to 2096)

Example: DAY=240457 represents April 24, 2057

and 57.

Responses to Command (target to controller)

Query (controller to target)

Response to Query (target to controller)

n.a. NUE? NUE=xx

(see description of arguments)

CAE=

n.a n.a. CAE? CAE# SNO= SNO?

SNO? SNO=xxxxxxxxx

(see description of arguments) SNO* SNO# n.a. SWR? SWR=x.xx

(see description of arguments)

RTE= RTE?

RTE? RTE=x

(see description of arguments) RTE* RTE#

RTT= RTT?

RTT? RTT=hhmm

(see description of arguments) RTT* RTT#

DAY= DAY?

DAY? DAY=ddmmyy

(see description of arguments) DAY* DAY#

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Parameter Type

Time TIM= 6 bytes,

Command (controller to target)

Argument count

numerical

Description of arg uments Note: All arguments are ASCII numeric codes between 48

Command or Query. Format is hhmmss, using a 24 hour clock, where hh = hours, between 00 and 23, mm = minutes, between 00 and 59, and ss = seconds, between 00 and 59

Example: TIM=231259 represents the time 23:12:59.

Config Store CST= 1 byte,

numerical, 0-9

Command or Query. Forces the unit to store the current modem configuration in Configuration Memory location defined by the one byte argument (0 - 9). Example CST=4 (Store current config into location 4)

WARNING: Use with care! If the location already contains data, it will be automatically overwritte n. If in doubt, query the location using CST?x.

Config Load CLD= 1 byte,

numerical, 0-9

Command only. Forces the switch to retrieve the Configuration Memory location defined by the one byte argument (0 to 9). and to re-program the switch with that stored configuration.

WARNING: Use with care! Current configuration settings will be overwritten. If in doubt, query the contents of the location using CST?x.

Repeat Last Message

n.a. n.a. Query only.

Responds with a repeat of the last response message. Note: this is the one instruction where the response

code does not match the RLM that was sent. Faults and Status

n.a. 14 bytes,

numerical

Query only.

Unit returns the current fault and status codes for the

switch itself, where each location in the string is either 0

for no fault or 1 for faulted, and the positions are:

Leftmost 1 = Mod remote comm problem

2 = Demod remote comm problem

3/4 = +5V PSU-A under/over

5/6 = +5V PSU-B under/over

7/8 = +12V PSU-A under/over

9/10 = +12V PSU-B under/over

11/12 = -12V PSU-A under/over

Rightmost 13/14 = -12V PSU-B under/over

and 57.

(use AMQ for detail)

(use ADQ for detail)

Responses to Command (target to controller)

TIM= TIM?

Query (controller to target)

Response to Query (target to controller)

TIM? TIM=hhmmss

(see description of arguments) TIM* TIM#

CST= CST? CST#

CST?x where x is 0-9

CST=xxxxx…

where xxxx… is the same format as SGC, or

CST* if no config is stored

CLD=

n.a. n.a.. CLD? CLD* CLD#

n.a. RLM? See the section corresponding to the response instruction code

n.a. FLT? FLT=xxxxxxxxxxxxxx

(see description of arguments

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Appendix C. CABLE DRAWINGS

Figure C-1 PC 9-Pin Serial Port to CRS-400 EIA-232 Remote Control Port

Figure C-1 shows the cable required for a simple EIA-232 connection between a PC serial port and the CRS-400 remote control port. This cable is needed for flash upgrading.

CRS-400 1:8 Redundancy Switch Revision 0 Cable Drawings MN/CRS400.IOM

Figure C-2 shows the HSSI data cable drawing for connections between the modem and the switch, and between the user data and the switch.

Figure C-2 HSSI Data Cable

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Table C-1 CA/WR9189 Cable Assembly (Pinout, Male/Male, HSSI, Shielded)

From To Signal Color Pair From To Signal Color Pair

GND Drain GND Drain P1-01 P2-01 BLK P1-14 P2-14 GRN P1-26 P2-26

SIG GND

RED

P1-39 P2-39

OPEN

WHT P1-02 P2-02 BLK P1-15 P2-15 GRN P1-27 P2-27

WHT

P1-40 P2-40

OPEN

BLU P1-03 P2-03 BLK P1-16 P2-16 GRN P1-28 P2-28

GRN

P1-41 P2-41

OPEN

YEL P1-04 P2-04 BLK P1-17 P2-17 GRN P1-29 P2-29

BLU

P1-42 P2-42

OPEN

BRN P1-05 P2-05 BLK P1-18 P2-18 GRN P1-30 P2-30

OPEN

YEL

P1-43 P2-43

OPEN

ORG P1-06 P2-06 BLK P1-19 P2-19 WHT P1-31 P2-31

BRN

P1-44 P2-44

SIG GND

BLU P1-07 P2-07 BLK P1-20 P2-20 WHT P1-32 P2-32

ORG

P1-45 P2-45

OPEN

YEL P1-08 P2-08 RED P1-21 P2-21 WHT P1-33 P2-33

WHT

P1-46 P2-46

OPEN

BRN P1-09 P2-09 RED P1-22 P2-22 WHT P1-34 P2-34

GRN

P1-47 P2-47

OPEN

ORG

P1-10 P2-10 RED P1-23 P2-23 BLU P1-35 P2-35

BLU

P1-48 P2-48

OPEN

YEL

P1-11 P2-11 RED P1-24 P2-24 BLU P1-36 P2-36

YEL

P1-49 P2-49

OPEN

BRN

P1-12 P2-12 RED P1-25 P2-25 BLU P1-37 P2-37

BRN

P1-50 P2-50

SIG GND

ORG

P1-13 P2-13 RED P1-38 P2-38

ORG

CRS-400 1:8 Redundancy Switch Revision 0

Cable Drawings MN/CRS400.IOM

Index

Data Redundancy And Controller, 8

Disclaimer, xii

About Rack Support, 15 About this Manual, viii Activate Desired Traffic Mods/Demods, 29 Address, 27 Alarm Masking, 33 Applying Power to the Switch, 27, 28 Auxiliary Serial Connector/Pass Through,

Backup Holdoff Operation, 32

Cables and Connectors, 15 Cautions and Warnings, viii CONFIG, 28, 29, 32, 33, 35, 43, 44, 45, 46,

47, 48, 49, 50, 51, 55

Configuring and Cabling for a Single

Transponder, 30

Configuring Automatic Operation Mode, 31,

32 Configuring the IF Carriers, 30 Configuring the Mods/Demods – Firmware

Versions, 27 Configuring the Switch, 28, 29 Connecting the Cables, 26 Conventions and References, viii CRS-280 IF Redundancy Switch

Specifications, 9 Customer Support, ii, ix, xii, 42

EIA-232, ix, 20, 42, 73 EIA-485, ix, 4, 5, 8, 13, 20, 21, 27, 54, 58 EMC Compliance, x EN 60950, xi, 7 EN50082-1 Compliance, x EN55022 Compliance, x Exclusive Remedies, xii

Federal Communications Commission

(FCC), x Flash Upgrade Help, 42 Flash Upgrade Procedure, 42 Flash Upgrading, 42 Front And Rear Panels, 5 Front Panel Display, 35 Front Panel Keys, 37

HSSI Cable, 15 HSSI Connection, 26 HSSI Module, 22, 24

IF Switch Control Connector, 19 INFO (Information), 51 Installation Details, 15 Introduction, 1

Data Connectors, 14

LED Indicators, 38

CRS-400 1:8 Redundancy Switch Revision 0 Index MN/CRS400.IOM

Limitations of Warranty, xii Low Voltage Directive (LVD), xi

Major Assemblies And Options, 6 Menu Trees, 39 Metric Conversion, viii MONITOR, 29, 30, 43, 53, 54 Mounting Instructions, 14

OPENING SCREEN, 43 Outline Drawing, 10

Provide Airflow, 14

Recommended Standard Designations, ix Related Documents, viii Remote Control Commands, 66 Remote Control Connector, 20 Remote Control Connector, 9-Pin D Type

Male, 20

Reporting Comments or Suggestions

Concerning this Manual, ix

Restore Holdoff Operation, 33

RMI Modules, 24

Safety Compliance, xi Set Auto Mode On, 32 Single Power Supply Operation (Test), 28 Specifications (Preliminary), 7 STORE/LD (Store or Load Configuration),

55 System Alarms Connector, 18

TMI Data Connector (HSSI), 16 TMI Modules, 22 Trademarks, ix

Unpacking and Inspection, 13 UTIL (Utility), 57

Verify LED conditions., 29

Warranty Policy, ii, xii

METRIC CONVERSIONS

Units of Length

Unit

1 centimeter — 0.3937 0.03281 0.01094

1 inch 2.540 — 0.08333 0.2778

1 foot 30.480 12.0 — 0.3333

1 yard 91.44 36.0 3.0 —

Centimeter

Inch

Foot

Yard

Mile

6.214 x 10

1.578 x 10

1.893 x 10

5.679 x 10

Meter

-6

-5

-4

0.01 — —

0.254 — 25.4

0.3048 — —

0.9144 — —

Kilometer Millimeter

1 meter 100.0 39.37 3.281 1.094

1 mile

1 mm — 0.03937 — — — — — —

1 kilometer — — — — 0.621 — — —

1.609 x 10

6.336 x 104 5.280 x 103 1.760 x 103

6.214 x 10

-4

—

— — —

1.609 x 103

1.609 —

Temperature Conversions

Unit

32° Fahrenheit

212° Fahrenheit

-459.6° Fahrenheit

° Fahrenheit

—

° Centigrade

(water freezes)

100

(water boils)

273.1

(absolute 0)

Formulas

C = (F - 32) * 0.555

F = (C * 1.8) + 32

Units of Weight

Unit

1 gram — 0.03527 0.03215 0.002205 0.002679 0.001

Gram

Ounce

Avoirdupois

Ounce

Troy

Pound

Avoir.

Pound

Troy

Kilogram

1 oz. avoir. 28.35 — 0.9115 0.0625 0.07595 0.02835

1 oz. troy 31.10 1.097 — 0.06857 0.08333 0.03110

1 lb. avoir. 453.6 16.0 14.58 — 1.215 0.4536

1 lb. Troy 373.2 13.17 12.0 0.8229 — 0.3732

1 kilogram

1.0 x 10

35.27 32.15 2.205 2.679 —

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Comtech EF Data CRS-400 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Errata A

Table of Contents

Address

Index