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Radyne RCS20 Installation And Operation Manual

M:n redundancy switch
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RCS20
M:N Redundancy Switch
Installation and Operation Manual
TM056
Rev. 2.3
- NOTICE -
©2003, Radyne ComStream, Inc. This manual
may not in whole or in part be copied,
reproduced,
translated
or
reduced
to
any
electronic or magnetic storage medium without
the written consent of a duly authorized officer of
Radyne ComStream, Inc.
Radyne ComStream, Inc. • 3138 E. Elwood St. • Phoenix, AZ 85034 • (602) 437-9620 • Fax: (602) 437-4811

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Summary of Contents for Radyne RCS20

  • Page 1 Radyne ComStream, Inc. Radyne ComStream, Inc. • 3138 E. Elwood St. • Phoenix, AZ 85034 • (602) 437-9620 • Fax: (602) 437-4811...

  • Page 3: Warranty Policy

    Warranty Replacement and Adjustment Radyne ComStream, Inc. will not make warranty adjustments for failures of products or parts, w hich occur after the specified maximum adjustment period. Unless otherwise agreed, failure shall be deemed to have occurred no more than seven (7) working days before the first date on which Radyne ComStream, Inc.
  • Page 4 Radyne ComStream, Inc.’s liability for damages shall not exceed the payment, if any, received by Radyne ComStream, Inc. for the unit or product or service furnished or to be furnished, as the case may be, which is the subject of claim or dispute.

  • Page 5: Cautions And Warnings

    Whenever the information within this manual instructs the operator to press a pushbutton switch or keypad key on the RCS20 Switch Front Panel, the pushbutton or key label will be shown enclosed in "less than" (<) and "greater than" (>) brackets. For example, the Reset Alarms Pushbutton will be shown as <RESET ALARMS>, while a command that calls for the entry of a ‘7’...
  • Page 6 Radyne ComStream, Inc. assumes no responsibility for use of any circuitry other than the circuitry employed in Radyne ComStream, Inc. systems and equipment.

  • Page 7: Table Of Contents

    RCS20 M:N Redundancy Switch Table of Contents Table of Contents Section 1 – Introduction 1.0 Description _______________________________________________________ 1-1 1.1 Digital Data Switch (DDS20) _________________________________________ 1-1 1.2 Intermediate Frequency Switch (IFS20) ________________________________ 1-1 1.3 General Information ________________________________________________ 1-1 1.4 Channel Definitions ________________________________________________ 1-2 Section 2 –...
  • Page 8 4.1.5 Guide to Front Panel Monitor and Control______________________________ 4-4 4.2 Remote Port Control _______________________________________________ 4-5 4.3 Terminal Port Control_______________________________________________ 4-5 4.3.1 Terminal Interface ________________________________________________ 4-5 4.4 Modem Checkout and Initial Power-up _________________________________ 4-5 4.5 RCS20 Front Panel Data Entry Screens ________________________________ 4-6 viii TM056 - Rev. 2.3...
  • Page 9 4.7.9 RCS20 Channel Definitions _______________________________________ 4-19 4.7.10 Detailed Command Descriptions __________________________________ 4-19 4.8 Ethernet Port User Interface ________________________________________ 4-19 4.9 RCS20 Management Information Base (MIB) ___________________________ 4-19 4.10 Terminal Port User Interface _______________________________________ 4-19 Section 5 – Electrical Interfaces 5.0 RCS20 Connections _______________________________________________ 5-1 5.1 DIP Switch Settings ________________________________________________ 5-7...
  • Page 10 6.0 Periodic Maintenance and Troubleshooting______________________________ 6-1 6.1 Troubleshooting ___________________________________________________ 6-1 6.1.1 Checking the Cabling and Connectors ________________________________ 6-1 6.1.2 Checking the Fuses ______________________________________________ 6-1 6.2 RCS20 Alarms ____________________________________________________ 6-2 6.2.1 Major Alarms ____________________________________________________ 6-2 6.2.2 Minor Alarms ____________________________________________________ 6-3 6.2.3 Alarm Masks ____________________________________________________ 6-4 6.2.4 Latched Alarms __________________________________________________ 6-4...

  • Page 11: Section 1 - Introduction

    Redundancy Control Unit (RCU20), the Digital Data Switch (DDS20) and the Intermediate Frequency Switch (IFS20). The RCS20 can be operated automatically, in which case an automatic backup of a failed online modem occurs after a preprogrammed delay. The switch may also be operated manually, allowing the operator to manually switch to a backup modem.

  • Page 12: Channel Definitions

    RCU20, IFS20 and the DDS20. Refer to Figure 1-1 for a pictorial representation of the RCU20 front panel, Figure 1-2 for a Functional Block Diagram of the RCS20 System and Figure 2-7 for an interconnection diagram of the complete system including the cabling requirements.

  • Page 13: Section 2 - Installation

    Section 2 – Installation 2.0 Installation Requirements This chapter instructs the user in the methods for setting up and installing an RCS20 M:N Redundancy Switch into a Satellite Modem system. The cabling configurations for up to nine channels and nine transponders are described.

  • Page 14: Site Considerations

    2.3 Rack Mounting The RCS20 is designed so that it can be mounted in a standard 19-inch rack. The RCS20 is 5¼”, 3 Rack Units (RU) high and must be mounted on the front of a rack with the front panel facing forward as shown in Figure 1-1.

  • Page 15: System Cable Configuration

    RCS20 M:N Redundancy Switch Installation 2.4 System Cable Configuration This section describes the cabling configurations for the various combinations of DMD15/2400 Modulators/Demodulators/Modems and Transponders. The following figures are provided to illustrate the proper placement of the cables: Figure 2-1. RCU20 Rear Panel Figure 2-2.
  • Page 16 Installation RCS20 M:N Redundancy Switch Figure 2-3. IFS20 Chassis Base Unit Rear Available Connectors Figure 2-4. DDS20 Digital Data Switch Front and Rear Panels TM056 - Rev. 2.3...

  • Page 17: System Dip Switch And Jumper Settings

    2.5 System DIP Switch and Jumper Settings The RCS20 requires several DIP Switches and jumpers to be configured for proper operation. The DIP Switches are located on the Digital Data Switches (DDS20) and the jumpers are located on the optional Reference Distribution Module on the RCU20 (See Figure 2-8).
  • Page 18 Installation RCS20 M:N Redundancy Switch The AS/3356 Modules were shipped with older models of the DDS20. Refer to Tables 2-1 through 2-5 for the various DIP Switch configurations on these assemblies. Figure 2-6a. AS/3356 Data Switch Module TM056 - Rev. 2.3...
  • Page 19 RCS20 M:N Redundancy Switch Installation Figure 2-6b. AS/3356 Data Switch Module TM056 - Rev. 2.3...
  • Page 20 Installation RCS20 M:N Redundancy Switch Figure 2-6c. AS/3356 Data Switch Module (for AS/3478 Rev. A2 Forward Only) TM056 - Rev. 2.3...

  • Page 21: Reference Distribution Module

    The Reference Distribution Module (RDM) is an optional RCU20 expansion card that is used to buffer and distribute earth station frequency reference(s) to the external reference input of modems that are connected to an RCS20. The RDM automatically switches between EXT A, EXT B or Internal References based upon onboard Clock Activity Detect circuits.
  • Page 22 Installation RCS20 M:N Redundancy Switch Figure 2-8. RCU Reference Distribution Module Jumper Settings External Input A (EXT A) Impedance: 50, 75, 510O (Jumper-Selectable) Frequency: 1.25, 2.5, 5.0 and 10.0 MHz Input Level Spec.: High Level 2 to 5 Volts 2-10...

  • Page 23: J1 - Sd - Send Data

    Same as External Input Output Impedance: Short Circuit Resistant Board Outline RCS20 Option Card Slot/DIN Connector 2.6 DDS20 Connector Pinouts The following connectors are located on the Universal Interface Module on the DDS20. Refer to the following Tables for the connector pinouts.

  • Page 24: J2 - Ddo - Drop Data Out

    Installation RCS20 M:N Redundancy Switch 2.6.2 J2 - DDO - Drop Data Out J2 is the Unbalanced Drop Data Out (DDO) BNC connector located on the Universal Interface Module. 2.6.3 J3 - IDI - Insert Data In J3 is the Unbalanced Insert Data In (IDI) BNC connector located on the Universal Interface Module.

  • Page 25: J6 - Es/Es

    RCS20 M:N Redundancy Switch Installation 2.6.6 J6 - ES/ES The connector pinouts for J6, the 9-Pin Earth-Station-to-Earth-Station asynchronous data connector are shown below. Table 2-7. J6 - ES/ES - 9-Pin ‘D’ Female Pin No. Signal Description Direction Ground None RXD-232...

  • Page 26: J8 - Esc 8K Data Interface

    Installation RCS20 M:N Redundancy Switch ESCBWO 1C Backward Alarm Out 1-C None ESCBWO 1-NC Backward Alarm Out 1-NC None ESCBWO 2-C Backward Alarm Out 2-C None ESCBWO 2-NC Backward Alarm Out 2-NC None ESCBWO 3-C Backward Alarm Out 3-C None...

  • Page 27: J9- G.703 (Balanced)

    RCS20 M:N Redundancy Switch Installation 2.6.9 J9- G.703 (Balanced) J9 is the G.703 (Balanced) 15-pin data connector. The pinouts are shown below. Table 2-10. J9 - G.703 (Balanced) 15-Pin Female ‘D’ Connector Pin No. Signal Name Signal Direction Send Data A (-)

  • Page 28: Digital Data Switch (Dds20) J1 Through J10 - Switch Connector

    Installation RCS20 M:N Redundancy Switch CS-A Clear to Send A (-) Output Mod Fault - Open Output Collector Demod Fault - Open Output Collector CS-B Clear to Send B (+) Output DM-A Data Mode A (-) Output DM-B Data Mode B (+)
  • Page 29 RCS20 M:N Redundancy Switch Installation ESCBWO 3C IDR ESC Backward Alarm Output - 3 Common IDO-A RD-A G.703 Insert Data Out A - Synchronous Output Data Receive Data A ESCBWO 3NO IDR ESC Backward Alarm Output - 3 Normally Open...
  • Page 30 Installation RCS20 M:N Redundancy Switch G703B IDI-B G.703 Insert Data Input - B SYNC ST-B Synchronous Data Send Timing Output B ESCBWO 2C IDR ESC Backward Alarm Out 2 Common SYNC TT-B Synchronous Data Terminal Timing - B ESCBWO 2NO...
  • Page 31 RCS20 M:N Redundancy Switch Installation SYNC RS-B Synchronous Data Request to Send - B Input SYNC RR-B Synchronous Data Receiver Ready B Output 2.6.12 RCU20 Connector Pinouts Table 2-13. J1 - Switch Interface Control Card - Alarms - 9-pin ‘D’ Male Pin No.
  • Page 32 Installation RCS20 M:N Redundancy Switch Table 2-15. J3 - Switch Interface Control Card - RS485 Remote Interface - 9-Pin ‘D’ Female Pin No. Signal Description Direction TxD-B Transmit Data B (+) Output No Connect None No Connect None No Connect...
  • Page 33 RCS20 M:N Redundancy Switch Installation Table 2-17. J3 - Bank Control Card - DDS20 Control and Power - 15-pin HD ‘D’ Female Pin No. Signal Description Direction DDS_LCLK Serial Control Clock Output VCC_RELAY Relay +6 Volts Output DDS_LDAT2 Serial Control Data 2...
  • Page 34 Installation RCS20 M:N Redundancy Switch IFS_LDAT1 Serial Control Data 1 Bi-directional No Connect None No Connect None No Connect None Table 2-19. J1 - Bank Control Card - RS485 Modem Control - 9-pin ‘D’ Female Pin No. Signal Description Direction...
  • Page 35 RCS20 M:N Redundancy Switch Installation Table 2-20. IFS20, J42 - IFS20 Control and Power - 15-pin HD ‘D’ Female Pin No. Signal Description Direction IFS_LCLK Serial Control Clock Input No Connect None No Connect None Ground None Ground None Logic +5 Volts...
  • Page 36 Installation RCS20 M:N Redundancy Switch 2-24 TM056 - Rev. 2.3...

  • Page 37: Section 3 - Operation

    PS1 and PS2 are located one on either side of the RCS20. 3.3 RCU20 Rear Panel As previously shown in Figure 2-1, the RCS20 contains the plug-in slots for the Interface Control Module, the Clock Distribution Modules, Bank Control Modules and Ethernet modules. Also contained in the back panel are the two AC fuses and power receptacles.

  • Page 38: Ifs20 Major Assemblies

    Operation RCS20 M:N Redundancy Switch 3.4 IFS20 Major Assemblies The IFS20 IF Switch interfaces the IF signals of the Modems with the earth station IF system and provides back-up switching. The unit provides all of the switching relays, signal combiners and...

  • Page 39: Section 4 - User Interfaces

    Front Panel Control Terminal Mode Control Command Interface Control Any of these methods may be used separately or together to monitor and control the RCS20. 4.1 Front Panel Control The front panel of the allows complete control and monitoring of all Modem and Switch RCS20 parameters and functions via a keypad, LCD display and Modem and Switch status LEDs.

  • Page 40: Front Panel Keypad

    Soft keys. This group of keys is used for various functions as described by the label shown above each key on the last line of the LCD. SWITCH Switch Control. This group of keys is used to control the RCS20. TM056 - Rev. 2.3...

  • Page 41: Modem-Mod Config

    RCS20. This feature is presently not implemented on the RCS20. 4.1.3.7 SWITCH-CONFIG SWITCH Pressing this key brings up a series of menus on the LCD that allow control of the RCS20 switch configuration parameters. 4.1.3.8 SWITCH-CONFIG SYSTEM Pressing this key brings up a series of menus on the LCD that allow control of the RCS20 system, monitor &...

  • Page 42: Switch-Monitor/Alarms

    Pressing this key brings up a series of menus on the LCD that allow monitoring of major and minor alarms and control of alarm masking for the RCS20. 4.1.3.10 SWITCH-TEST Pressing this key brings up a series of menus on the LCD that allow testing of the RCS20 configurations and connections. 4.1.4 Front Panel LCD Indicators There are sixteen (16) LEDs on the RCS20 front panel to indicate the selected LCD menu tree and current switch status.

  • Page 43: Remote Port Control

    4800, 2400, and 1200. 4.3 Terminal Port Control The RCS20 has a dedicated RS232 serial port (Terminal Port) for use with a separate terminal or computer running a terminal emulation program. The Terminal Port is a 9-pin female ‘D’ sub connector J2 located at the rear of the unit on the Switch Interface plug in module.

  • Page 44: Rcs20 Front Panel Data Entry Screens

    4.5 RCS20 Front Panel Data Entry Screens Control from the front panel of the RCS20 is implemented through a series of data entry screens (“screens”) that are displayed on the front panel LCD. The screens are organized into groups of related parameters and status values.

  • Page 45: Changing Parameters From The Front Panel

    RCS20 M:N Redundancy Switch User Interfaces 4.5.1.1 Changing parameters from the Front Panel Whenever there is a parameter that can be changed or edited from the front panel, the first character of the parameter value will highlight with a blinking box. This box is called the cursor, and the cursor defines what parameter is currently being edited.

  • Page 46: Summary Of Basic Front Panel Controls

    Used to edit numeric parameters. 4.6 Front Panel Menu Trees and Screens There are four menu trees used to control the RCS20: CONFIG SWITCH, CONFIG SYSTEM, MONITOR/ALARMS, and TEST. These menu trees are shown in flowchart form in Figures 3-2 to 3- 5.
  • Page 47 RCS20 M:N Redundancy Switch User Interfaces Figure 4-2. TM056 - Rev. 2.3...
  • Page 48 User Interfaces RCS20 M:N Redundancy Switch Figure 4-3. 4-10 TM056 - Rev. 2.3...
  • Page 49 RCS20 M:N Redundancy Switch User Interfaces Figure 4-4. TM056 - Rev. 2.3 4-11...

  • Page 50: Host Computer Remote Communications

    RCS20 M:N Redundancy Switch 4.7 Host Computer Remote Communications Control and status messages are conveyed between the RCS20 and the subsidiary modems and the host computer using packetized message blocks in accordance with a proprietary communications specification. This communication is handled by the Radyne Link Level Protocol (RLLP), which serves as a protocol ‘wrapper’...
  • Page 51 RCS20 M:N Redundancy Switch User Interfaces <DESTINATION ID> - The Destination Identifier specifies the multidrop address of the device(s) to which the message is sent. <FRAME SEQUENCE NUMBER> - The FSN is a tag with a value from 0 through 255 that is sent with each message.

  • Page 52: Frame Description And Bus Handshaking

    Global response Opcodes are common responses, issued to the M&C computer or to another device, that can originate from and are interpreted by all Radyne ComStream, Inc. equipment in the same manner. These are summarized as follows (all Opcode values are...

  • Page 53: Collision Avoidance

    RCS20 M:N Redundancy Switch User Interfaces RESPONSE OPCODE DESCRIPTION OPCODE Good Message Bad Parameter Bad Opcode 4.7.5 Collision Avoidance When properly implemented, the physical and logical devices and ID addressing scheme of the COMMSPEC normally precludes message packet contention on the control bus. The importance of designating unique IDs for each device during station configuration cannot be overemphasized.

  • Page 54: Software Compatibility

    Note that multi-drop override ID 01 can be used interchangeably to broadcast a message to a DMD-3000/4000 modem, a DMD-4500/5000, a DMD15 modem, or a DVB3030. Radyne ComStream, Inc. recommends that the multi-drop override IDs be issued only during system configuration as a bus test tool by experienced programmers, and that they not be included in run- time software.

  • Page 55: Rllp Summary

    M&C MUST make use of the non-volatile count value to index to the start of the Volatile Section. If the remote M&C is not aware of the newly added features to the Radyne ComStream, Inc. product, it should disregard the parameters at the end of the Non-Volatile Section and index to the start of the Volatile Section.

  • Page 56: Rcs20 Opcode Command Set

    User Interfaces RCS20 M:N Redundancy Switch 4.7.8 RCS20 Opcode Command Set The RCS20 Opcode Command Set is listed below: Command Opcode Query Identification 2403h Query Control Mode 2404h Query Switch Status 2001h Query Switch Configuration 2002h Query Switch Modem Remote Addresses...

  • Page 57: Rcs20 Channel Definitions

    User Interfaces 4.7.9 RCS20 Channel Definitions The RCS20 organized the modems connected to the switch according to satellite communications channels. These channels are labeled on the DDS20 and IFS20 panels, and are defined as follows: Channel 0 - Backup 1...
  • Page 58 User Interfaces RCS20 M:N Redundancy Switch 4-20 TM056 - Rev. 2.3...

  • Page 59: Section 5 - Electrical Interfaces

    Section 5 – Electrical Interfaces 5.0 RCS20 Connections All RCS20 connections are made to labeled connectors located on the rear of the unit. Any connection interfacing to the RCS20 must be the appropriate mating connector. Refer to Figures 5- 1 through 5-5 for connector locations and Figure 5-6 for the Interconnection Diagram.
  • Page 60 Electrical Interfaces RCS20 M:N Redundancy Switch Figure 5-2. IFS20 Rear Panel Connectors TM056 - Rev. 2.3...
  • Page 61 RCS20 M:N Redundancy Switch Electrical Interfaces Figure 5-3. IFS20 Chassis Base TM056 - Rev. 2.3...
  • Page 62 Electrical Interfaces RCS20 M:N Redundancy Switch Figure 5-4. DDS20 Front and Rear Panels TM056 - Rev. 2.3...
  • Page 63 RCS20 M:N Redundancy Switch Electrical Interfaces Figure 5-5. Rear Panel Interface – Data Switch Module – DDS20 TM056 - Rev. 2.3...
  • Page 64 Electrical Interfaces RCS20 M:N Redundancy Switch Figure 5-6. RCS20 Cabling and Interconnection Diagram TM056 - Rev. 2.3...

  • Page 65: Dip Switch Settings

    RCS20 M:N Redundancy Switch Electrical Interfaces 5.1 DIP Switch Settings The following Tables represent the DIP Switch settings for G.703 Balanced, G.703 Unbalanced and Synchronous (RS-422/V.35) interfaces located on the Digital Data Switch (DDS20). AS/3356 ALL SYNC AS/3356 G.703 Unbalanced AS/3356 G.703 Balanced DIP...
  • Page 66 Electrical Interfaces RCS20 M:N Redundancy Switch AS/3478 G.703 Balanced DIP AS/3478 G.703 Balanced DIP Switch Settings Switch Settings TM056 - Rev. 2.3...

  • Page 67: Dds20 Connector Pinouts

    RCS20 M:N Redundancy Switch Electrical Interfaces 5.2 DDS20 Connector Pinouts The following connectors are located on the Universal Interface Module on the DDS20. Refer to the following Tables for the connector pinouts. 5.2.1 J1 - SD - Send Data J1 is the G.703 Unbalanced Send Data (SD) BNC connector located on the Universal Interface Module.

  • Page 68: J6 - Es/Es

    Electrical Interfaces RCS20 M:N Redundancy Switch 5.2.6 J6 - ES/ES The connector pinouts for J6, the 9-Pin Earth Station-to-Earth Station asynchronous data connector are shown Table 5-2. Table 5-2. J6 - ES/ES - 9-Pin ‘D’ Female Pin No. Signal Description...
  • Page 69 RCS20 M:N Redundancy Switch Electrical Interfaces ESCBWO 2-C Backward Alarm Out 2-C None ESCBWO 2-NC Backward Alarm Out 2-NC None ESCBWO 3-C Backward Alarm Out 3-C None ESCBWO 3-NC Backward Alarm Out 3-NC None ESCBWO 4-C Backward Alarm Out 4-C...
  • Page 70 Electrical Interfaces RCS20 M:N Redundancy Switch J9- G.703 (Balanced) J9 is the G.703 (Balanced) 15-pin data connector. The pinouts are shown below. Table 5-10. J9 - G.703 (Balanced) 15-Pin Female ‘D’ Connector Pin No. Signal Name Signal Direction Send Data A (-)
  • Page 71 RCS20 M:N Redundancy Switch Electrical Interfaces Mod Fault - Open Output Collector Demod Fault - Open Output Collector CS-B Clear to Send B (+) Output DM-A Data Mode A (-) Output DM-B Data Mode B (+) Output RR-A Receiver Ready A (-)
  • Page 72 Electrical Interfaces RCS20 M:N Redundancy Switch ESCBWO 3C IDR ESC Backward Alarm Output - 3 Common IDO-A RD-A G.703 Insert Data Out A - Synchronous Output Data Receive Data A ESCBWO 3NO IDR ESC Backward Alarm Output - 3 Normally Open...
  • Page 73 RCS20 M:N Redundancy Switch Electrical Interfaces G703B IDI-B G.703 Insert Data Input - B SYNC ST-B Synchronous Data Send Timing Output B ESCBWO 2C IDR ESC Backward Alarm Out 2 Common SYNC TT-B Synchronous Data Terminal Timing - B ESCBWO 2NO...

  • Page 74: Rcu20 Connector Pinouts

    Electrical Interfaces RCS20 M:N Redundancy Switch SYNC RS-B Synchronous Data Request to Send - B Input SYNC RR-B Synchronous Data Receiver Ready B Output RCU20 Connector Pinouts Table 5-13. J1 - Switch Interface Control Card - Alarms - 9-pin ‘D’ Male Pin No.
  • Page 75 RCS20 M:N Redundancy Switch Electrical Interfaces Table 5-15. J3 - Switch Interface Control Card - RS485 Remote Interface - 9-Pin ‘D’ Female Pin No. Signal Description Direction TxD-B Transmit Data B (+) Output No Connect None No Connect None No Connect...
  • Page 76 Electrical Interfaces RCS20 M:N Redundancy Switch Table 5-17. J1 - Bank Control Card - DDS20 Control and Power - 15-pin HD ‘D’ Female Pin No. Signal Description Direction DDS_LCLK Serial Control Clock Output VCC_RELAY Relay +6 Volts Output DDS_LDAT2 Serial Control Data 2...
  • Page 77 RCS20 M:N Redundancy Switch Electrical Interfaces No Connect None No Connect None Ground None VCC_RELAY Relay +6 Volts Output IFS_LDAT1 Serial Control Data 1 Bi-directional No Connect None No Connect None No Connect None Table 5-19. J3 - Bank Control Card - RS485 Modem Control - 9-pin ‘D’...
  • Page 78 Electrical Interfaces RCS20 M:N Redundancy Switch Logic +5 Volts Input VCC_RELAY Relay +6 Volts Input No Connect None No Connect None Ground None VCC_RELAY Relay +6 Volts Output IFS_LDAT1 Serial Control Data 1 Bi-directional No Connect None No Connect None...

  • Page 79: Section 6 - Maintenance

    Section 6 – Maintenance 6.0 Periodic Maintenance and Troubleshooting The RCS20 requires no periodic field maintenance procedures. The unit has no adjustments, and all configuration information is digital and stored in nonvolatile EEPROM. Should a unit be suspected of a defect in field operations, the proper procedure is to first to follow the basic troubleshooting guide below.

  • Page 80: Rcs20 Alarms

    Alarm condition is indicated by illumination of the MAJOR ALARM LED on the front panel and by relay closure on the real panel Alarm connector. All conditions resulting in an RCS20 Major Alarm are described in Table 6-1 and a Major Alarm matrix is shown in Table 6-2. The alarm matrix shows all possible alarm conditions, and any actions taken by the RCS20 in response to the alarm.

  • Page 81: Minor Alarms

    MINOR ALARM LED on the front panel, and closing a relay on the rear panel ALARM connector. All conditions resulting in an RCS20 Minor Alarm are described in Table 6-3 and a Minor Alarm matrix is shown in Table 6-4. The alarm matrix shows all possible alarm conditions, and any actions taken by the RCS20 in response to the alarm.

  • Page 82: Alarm Masks

    Front Panel, the Terminal Port, or the Remote Port. 6.2.4 Latched Alarms Latched Alarms are used to identify intermittent failures in an RCS20 redundancy system. If an alarm occurs, the alarm condition will be stored even if the condition causing the alarm ceases.
  • Page 83 (the user pays only the freight charge to the factory). If the equipment is out of warranty, it will be promptly repaired. The customer will be charged for repairs and return shipping. Radyne ComStream, Inc. will notify the customer when the equipment is ready to be shipped back to their facility. TM056 - Rev. 2.3...
  • Page 84 Maintenance RCS20 M:N Redundancy Switch TM056 - Rev. 2.3...

  • Page 85: Section 7 - Technical Specifications

    RCS20 M:N Redundancy Switch Technical Specifiations Section 7 – Technical Specifications 7.0 Introduction This section defines the technical performance parameters and specifications for the RCS20 M:N Redundancy Switch. 7.1 General Specifications Configurable For: 1:9, 2:8, 1:4/1:4, 1:2/1:6, 1:3/1:5 Online Modulators:...

  • Page 86: Power And Environmental

    Technical Specifications RCS20 M:N Redundancy Switch 7.4 Power and Environmental Prime Power: 100/240 VAC, 50 - 60 Hz, 65 Watts Operating Temp: 0 to 50°C, 95% humidity, non-condensing Storage Temp: -20 to 70 degrees C, 99% humidity, non-condensing 7.5 Physical Size: RCU20 - 19”...

  • Page 87: Appendix A - Remote Rllp

    Appendix A Appendix A – Remote RLLP When new features are added to Radyne ComStream, Inc. equipment, the control parameters are appended to the end of the Non-Volatile Section of the Remote Communications Specification, and status of the features, if any, are added at the end of the Volatile Section.
  • Page 88 RCS20 M:N Redundancy Switch Channels <1> Number of Maximum number of prime and backup channels available to Status Bytes per the RCS20 switch. 3 decimal for RCS20. Channels <1> *Channel 0 Bit 0 = modulator failure flag Status Bit 1 = demodulator failure flag...
  • Page 89 Opcode: <2002h> Query RCS20 Switch Configuration Query Response <2> Nonvolatile Bytes Number of nonvolatile RCS20 configuration memory bytes (125 decimal for RCS20) Number of <1> Channels Maximum number of prime and backup channels available to the RCS20 switch. 10 decimal for RCS20.
  • Page 90 Appendix A RCS20 M:N Redundancy Switch Backup Delay <2> 0h - BB7h in tenths of a second; decimal point implied *Channel 0 Demod Backup <2> Delay 0h - BB7h in tenths of a second; decimal point implied *Channel 0 Mod Backup Config <1>...
  • Page 91 Channel number for manual backup (1 to 8) Demodulator Backup (ignored if in automatic mode or if channel Reserved 9 is configured as prime) <4> Reserved Reserved for RCS10 (= 0 for RCS20) <4> Reserved for RCS10 (= 0 for RCS20) Status Bytes <1> Control Mode...
  • Page 92 Appendix A RCS20 M:N Redundancy Switch <1> Number of 3 decimal for RCS20. Status Bytes per Channels <1> *Channel 0 Bit 0 = modulator failure flag Status Bit 1 = demodulator failure flag (0 = no failure, 1 = failure)
  • Page 93 <1> Number of Maximum number of prime and backup channels available to Channels the RCS20 switch. 10 decimal for RCS20. <1> *Modem Address Modem remote address for channel 0. * Note: This 1 byte repeats for channels 1 - 9 (uses 9 additional bytes).
  • Page 94 Expansion Slots Each slot returns one byte as follows: 255 decimal = no expansion card present 0 = RCS20 Interface Control Module 1 = RCS20 Bank Control Module 2 = RCS20 Ethernet Interface Module 3 = RCS20 Clock Distribution Module <1>...
  • Page 95 Contents of Response Packet Data Field: dependent upon message relayed to modem. Opcode: <2202h> Set RCS20 Configuration <2> Nonvolatile Bytes Number of nonvolatile RCS20 configuration memory bytes (117 decimal for RCS20) <1> Number of Maximum number of prime and backup channels available to Channels the RCS20 switch.
  • Page 96 Appendix A RCS20 M:N Redundancy Switch <2> *Channel 0 0h - BB7h in tenths of a second; decimal implied Demod Backup Delay <1> *Channel 0 Mod Bit 0 = Backup 1 assigned to this modulator Backup Bit 1 = Backup 2 assigned to this modulator...
  • Page 97 Demodulator Backup (ignored if in automatic mode or if channel Force Manual 9 is configured as prime) <4> Reserved Reserved for RCS10 (values will be ignored for RCS20) <4> Reserved Reserved for RCS10 (values will be ignored for RCS20) Opcode: <2204h>...
  • Page 98 Command will return an error if trying to force a backup for a backup channel not configured in manual backup mode. Opcode: <2010h> Query RCS20 Reference Distribution Module Configuration <1> RDM Slot Slot number on the RCU20 for the RDM to be configured Number <1>...
  • Page 99 RCS20 M:N Redundancy Switch Appendix A Opcode: <2210h> Set RCS20 Frequency Distribution Module Configuration <1> RDM Slot Slot number on the RCU20 for the FDM to be configured. Number <1> RDM Fallback 0 = External A Only Mode 1 = Internal Only 2 = Ext A à...
  • Page 100 Appendix A RCS20 M:N Redundancy Switch A-14 TM056 – Rev. 2.3...

  • Page 101: Appendix B - Snmp Mib

    Radyne user MIB Object Identifiers description. The private enterprise number 2591 is a unique identifier assigned to Radyne by the Internet Assigned Numbers Authority (IANA). This number is used to uniquely define vendor specific information such as private MIBs.
  • Page 102 Appendix B RCS20 M:N Redundancy Switch There is an implied decimal point. For example, a value of 39 represents a transmit power level of +3.9 dBm." ::= { radSNMP_Mod_NV_Status 2 } radIFFrequency OBJECT-TYPE SYNTAX INTEGER (50000000..180000000) ACCESS read-write STATUS current DESCRIPTION "Selects IF frequency in Hz."...
  • Page 103 RCS20 M:N Redundancy Switch Appendix B ACCESS read-write STATUS current DESCRIPTION "Selects Tx code rate and type. Note: Changing the convolutional encoder will affect symbol rate and data rate. See note at the end of this section. Unsupported choices include:...
  • Page 104 Appendix B RCS20 M:N Redundancy Switch "Selects internal or external reference clock" ::= { radSNMP_Mod_NV_Status 12 } radExternalReference OBJECT-TYPE SYNTAX INTEGER (1000000..10000000) ACCESS read-write STATUS current DESCRIPTION "Selects the external reference frequency in 8 KHz steps." ::= { radSNMP_Mod_NV_Status 13 }...
  • Page 105 RCS20 M:N Redundancy Switch Appendix B ::= { radSNMP_Mod_NV_Status 17 } radModulationType OBJECT-TYPE SYNTAX INTEGER { qpsk(0), bpsk(1), psk8(2), qam16(3) ACCESS read-write STATUS current DESCRIPTION "Selects the modulation type. Note: Changing modulation type will affect the symbol rate and data rate.
  • Page 106 Appendix B RCS20 M:N Redundancy Switch radDifferentialEncoder OBJECT-TYPE SYNTAX INTEGER { off(0) ACCESS read-write STATUS optional DESCRIPTION "Disables differential encoder unsupported " ::= { radSNMP_Mod_NV_Status 23 } radAlarmMaskEnable OBJECT-TYPE SYNTAX INTEGER { disable(0), enable(1) ACCESS read-write STATUS optional DESCRIPTION "unsupported"...
  • Page 107 RCS20 M:N Redundancy Switch Appendix B radOperatingMode OBJECT-TYPE SYNTAX INTEGER { normal(0), test_pattern_2_15(1) ACCESS read-write STATUS current DESCRIPTION "Test Pattern Operating Mode: None, (2^15)-1 " ::= { radSNMP_Mod_NV_Status 28 } radCarrierTest OBJECT-TYPE SYNTAX INTEGER { off(0), cw(1), dual(2), offset(3), posfir(4),...
  • Page 108 "Allows the modulator to behave with symbol rate or data rate precedence based on the selection. See rate control notes." ::= { radSNMP_Mod_NV_Status 35 } ----------------------------------------------------------------------------- -- Status information out of Radyne specific MIB radMajorAlarmStatus OBJECT-TYPE SYNTAX INTEGER (0..255) ACCESS read-only STATUS current DESCRIPTION "Major Alarm status:...
  • Page 109 RCS20 M:N Redundancy Switch Appendix B ::= { radSNMP_Mod_Status 1 } radMinorAlarmStatus OBJECT-TYPE SYNTAX INTEGER (0..255) ACCESS read-only STATUS current DESCRIPTION "Minor Alarm status: A bit field. 0 = PASS, 1 = FAIL Bit 1 = Terrestrial clock activity detect...
  • Page 110 Appendix B RCS20 M:N Redundancy Switch DESCRIPTION "Common Alarm latched status: A bit field. 0 = PASS, 1 = FAIL Bit 0 = -12V alarm. Bit 1 = +12V alarm. Bit 2 = +5V alarm. " ::= { radSNMP_Mod_Status 6 } radRevisionNumber OBJECT-TYPE SYNTAX INTEGER (0..255)
  • Page 111 RCS20 M:N Redundancy Switch Appendix B Bit 1 = Parallel Interface Bit 2 = ASI Norm Interface Bit 3 = ASI Null Interface Bit 4 = E3 Interface Present Bit 5 = T3 Interface Present Bit 6 = STS-1 Interface Present...
  • Page 112 Appendix B RCS20 M:N Redundancy Switch B-12 TM056 – Rev. 2.3...
  • Page 113 RCS20 M:N Redundancy Switch Glossary Glossary Ampere Alternating Current Analog to Digital Converter Automatic Gain Control Alarm Indication System. A signal comprised of all binary 1s. ANSI American National Standards Institute ASCII American Standard Code for Information Interchange ASIC Application Specific Integrated Circuit...
  • Page 114 Glossary RCS20 M:N Redundancy Switch Digital to Analog Converter Decibels Decibels Referred to Carrier Decibels Referred to 1.0 milliwatt Direct Current Data Communications Equipment Demod Demodulator or Demodulated DPLL Digital Phase Locked Loop Data Terminal Equipment Digital Video Broadcast D&I Drop and Insert Ratio of Energy per bit to Noise Power Density in a 1 Hz Bandwidth.
  • Page 115 RCS20 M:N Redundancy Switch Glossary HSSI High Speed Serial Interface Hardware Hertz (Unit of Frequency) Intelsat Business Services Intermediate Data Rate Input/Output IEEE International Electrical and Electronic Engineers IESS INTELSAT Earth Station Standards Intermediate Frequency INTELSAT International Telecommunication Satellite Organization...
  • Page 116 Glossary RCS20 M:N Redundancy Switch Milliampere Mbps Megabits per Second MFAS Multi-Frame Acquisition Sync. See FAS. Megahertz Management Information Base Modulator or Modulated Millisecond M&C Monitor and Control Normally Closed Normally Open Nanoseconds NVRAM Non-Volatile Random Access Memory No Connection or Not Connected...
  • Page 117 RCS20 M:N Redundancy Switch Glossary Random Access Memory Radio Frequency Read Only Memory Root Mean Square Rack Unit. 1 RU = 1.75” Receive (Receiver) Receive Data Reed-Solomon Coding. Reed-Solomon codes are block-based error correcting codes with a wide range of applications in digital communications and storage.
  • Page 118 Glossary RCS20 M:N Redundancy Switch W X Y Z Watt Misc. µs Microsecond Ohms 16QAM 16 Quadrature Amplitude Modulation 8PSK 8 Phase Shift Keying TM056 – Rev. 2.3...

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