Mocomtech SLM-5650 User Manual

SLM-5650

Satellite Modem

Installation and O

IMPORTANT NOTE: The information contained in this document supersedes all previously published information regarding this product. This manual is subject to chan

e without prior notice.

Part Number MN/SLM5650.IOM Revision 2

peration Manual

Errata A

Comtech EF Data Documentation Update

Subject:

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

Agile Document ID

Change Specifics:

This information will be incorporated into the next revision.

Front Cover – Removed “Prelimin

B.4 Basic Protocol

Changes to Front Cover and Section B.4, Basic Protocol

October 15, 2007 MN/SLM5650.IOM Rev 2

ER-SLM5650.EA2

ary".

Agile CO Number

CO1453

Whether in EIA-232 or EIA-485 mode, all data is transmitted as asynchronous serial characters, suitable for transmission and reception by a UART. In this case, the asynchronous character format is 8N1. The baud rate may vary between 2400 and 57,600 baud.

AGILE DOC ID ER-SLM5650.EA2 THIS DOCUMENT IS NOT SUBJECT TO REVISION/UPDATE! AGILE CO1453

This page is intentionally blank.

AGILE DOC ID ER-SLM5650.EA2 THIS DOCUMENT IS NOT SUBJECT TO REVISION/UPDATE! AGILE CO1453

Subject: Date:

Errata B

Comtech EF Data Documentation Update

Changes to Chapter 2. Installation October 9, 2008

Original Manual Part Number/Rev:

Agile Document ID

MN/SLM5650.IOM

ER-SLM5650.EB2

Agile CO Number

Rev 2

C05284

Change Specifics:

In Chapter 2. INSTALLATION, Sect. 2.3.8 Auxiliary Connector (J9), Page 2-9: Revise the pinout table for the 15-pin connector as follows:

From: To:

This information will be incorporated into the next manual revision.

AGILE DOC ID ER-SLM5650.EB2 THIS DOCUMENT IS NOT SUBJECT TO REVISION/UPDATE! AGILE C05284

This page is intentionally blank.

AGILE DOC ID ER-SLM5650.EB2 THIS DOCUMENT IS NOT SUBJECT TO REVISION/UPDATE! AGILE C05284

SLM-5650

Satellite Modem

Installation and Operation Manual

Comtech EF Data is an ISO 9001

gistered Company.

Part Number MN/SLM5650.IOM

Revision 2

August 19, 2006

Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333.2200, FAX: 480.333.2161.

Customer 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

A Customer Support representative may be reached at:

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

480.333.2200 (Main Comtech EF Data Number)

480.333.4357 (Customer Support Desk)

480.333.2161 FAX

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

service@comtechefdata.com

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

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

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

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

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

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

0Hwww.comtechefdata.com.

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

1.1 Introduction 1–1

1.1.1 Features....................................................................................................................................1–2

1.1.2 Options......................................................................................................................................1–3

1.2 Modem Design 1–3

1.3 Modem Description 1–3

1.4 Operating Modes 1–5

1.4.1 Closed Networks.......................................................................................................................1–5

1.4.2 Open Networks (INTELSAT) ....................................................................................................1–5

1.4.3 OM-73.......................................................................................................................................1–5

1.5 Data Interfaces 1–5

1.5.1 TIA/EIA-530..............................................................................................................................1–6

1.5.2 TIA/EIA-613 (HSSI)...................................................................................................................1–6

1.5.3 Gigabit Ethernet........................................................................................................................1–6

1.6 Independent Tx and Rx Function 1–6

1.7 Interoperability 1–7

1.7.1 Interoperability with Legacy Modems.......................................................................................1–7

1.7.2 Protection Switches..................................................................................................................1–7

1.8 Summary of Specifications 1–8

1.8.1 Performance...........................................................................................................................1–10

1.8.2 Acquisition and Timing Performance Requirements ..............................................................1–10

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SLM-5650 Satellite Modem Revision 2 Preface

1.8.3 Data Quality Performance......................................................................................................1–11

1.8.3.1 OM-73 Compatible Mode Performance..................................................................1–11

1.8.3.2 MIL-STD-188-165A Compatible Mode Performance..............................................1–11

1.8.3.3 IESS-308 Compatible Mode Performance..............................................................1–12

1.8.3.4 IESS-309 Compatible Mode Performance..............................................................1–12

1.8.3.5 IESS-310 Compatible Mode Performance..............................................................1–12

1.8.3.6 16-QAM Coding Mode Performance.......................................................................1–12

1.8.3.7 Turbo Coding Mode Performance...........................................................................1–12

1.8.3.8 BER.........................................................................................................................1–13

1.8.3.8.1 BPSK/QPSK/Offset QPSK BER Performance, Veterbi Decoding.............1–13

1.8.3.8.2 BPSK/QPSK/Offset QPSK BER Performance, Veterbi Decoding and Reed- ..

Solomon......................................................................................................1–13

1.8.3.8.3 8-PSK BER Performance, Trellis Decoder.................................................1–14

1.8.3.8.4 8-PSK BER Performance, Trellis Decoder and Reed-Solomon.................1–14

1.8.3.8.5 16-QAM BER Performance, Viterbi Decoder and Reed-Solomon.............1–14

1.8.3.8.6 BER Performance, Turbo Products Code Decoding..................................1–15

1.8.4 BER Performance with Symmetrical Adjacent Carriers..........................................................1–16

1.8.5 BER Performance with Asymmetrical Adjacent Carriers........................................................1–17

1.9 Dimensional Envelope 1–18

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

2.1 Unpacking 2–1

2.2 Installation 2–2

2.2.1 Optional Installation of Side-Railings........................................................................................ 2–2

2.2.2 Optional Installation Using a Typical Customer Rack...............................................................2–3

2.3 External Connections 2–4

2.3.1 External Reference, (J1)..........................................................................................................2–5

2.3.2 70 / 140 IF Interface Connectors.............................................................................................. 2–5

2.3.3 L-Band IF Interface Connectors................................................................................................2–5

2.3.4 Ethernet Remote Cont rol Connector, (J5)................................................................................2–5

2.3.5 EIA-530 Connector, (J6)...........................................................................................................2–6

2.3.6 HSSI Connector, (J7)................................................................................................................2–7

2.3.7 Alarms Connector, (J8)............................................................................................................. 2–8

2.3.8 Auxiliary Connector, (J9)..........................................................................................................2–8

2.3.9 Remote Connector, (J10).........................................................................................................2–9

2.3.10 Overhead Data, (P1)...............................................................................................................2–10

2.4 AC Power Connector 2–11

2.5 Ground Connector (GND) 2–11

2.6 Gigabit Ethernet 2–11

SLM-5650 Satellite Modem Revision 2 Preface

CHAPTER 3. CONFIGURATION..........................................................................................................3–1

3.1 Modes 3–1

3.2 Clocking Options 3–11

3.2.1 IDR/IBS G.703 Master/Master................................................................................................3–11

3.2.2 IDR/IBS G.703 Master/Slave..................................................................................................3–11

3.3 Buffering 3–14

3.4 Doppler 3–17

3.5 Plesiochronous 3–18

3.6 Frame/Multiframe Length 3–19

3.6.1 Multiples of the Frame Length................................................................................................ 3–19

3.6.2 Total Buffer Length.................................................................................................................3–19

3.6.3 Converting B etween Bits and Seco nds..................................................................................3–19

CHAPTER 4. FRONT PANEL OPERATION........................................................................................4–1

4.1 Front Panel 4–1

4.1.1 LED Indicators..........................................................................................................................4–2

4.1.2 Front Panel Keypad..................................................................................................................4–4

4.1.3 Menu Matrix..............................................................................................................................4–5

4.2 Opening Screen 4–6

4.3 Main Menu 4–6

4.3.1 Select: Config............................................................................................................................4–7

4.3.1.1 Select: CONFIG: Transmit ........................................................................................4–8

4.3.1.2 Select: CONFIG: Receive .......................................................................................4–11

4.3.1.3 Select: CONFIG: Mode ...........................................................................................4–16

4.3.1.4 Select: Configuration: AUPC: Local........................................................................4–17

4.3.1.5 Select: CONFIG: Ref...............................................................................................4–18

4.3.1.6 Select: CONFIG: Mask............................................................................................4–18

4.3.1.7 Select: CONFIG: Reset...........................................................................................4–19

4.3.1.8 Select: CONFIG: Remote........................................................................................4–19

4.3.2 Select: Monitor........................................................................................................................4–21

4.3.2.1 Select: Monitor: Alarms...........................................................................................4–22

4.3.2.2 Select: Monitor: Event-Log......................................................................................4–24

4.3.2.3 Select: Monitor: Rx-Params....................................................................................4–25

4.3.2.4 Select: Monitor: Statistics........................................................................................4–25

4.3.2.5 Select: Monitor: GigaBit I/F Statistics......................................................................4–26

4.3.3 Select: Test.............................................................................................................................4–26

4.3.3 Select: Save/Load...................................................................................................................4–28

4.3.4 Select: Utility...........................................................................................................................4–28

4.3.4.1 Select: Utility: Firmware...........................................................................................4–29

4.3.4.2 Select: Utility: FAST ................................................................................................4–31

4.3.4.3 Display Screen Saver Status...................................................................................4–32

SLM-5650 Satellite Modem Revision 2 Preface

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

5.1 System Checkout 5–1

5.1.1 Checkout...................................................................................................................................5–2

5.1.2 Interface Checkout....................................................................................................................5–2

5.1.3 Modulator Checkout..................................................................................................................5–3

5.2 Demodulator Checkout 5–6

5.3 Fault Isolation 5–9

5.4 System Faults/Alarms 5–10

APPENDIX A. OPTIONS......................................................................................................................A–1

APPENDIX B. REMOTE CONTROL....................................................................................................B–1

APPENDIX C. FLASH UPGRADING ...................................................................................................C–1

APPENDIX D. ETHERNET MANAGEMENT........................................................................................D–1

APPENDIX E. CDI-70 GIGABIT ETHERNET INTERFACE.................................................................E–1

SLM-5650 Satellite Modem Revision 2 Preface

Figures

Figure 1-1. SLM-5650..............................................................................................................................1–1

Figure 1-2. SLM-5650 Block Diagram......................................................................................................1–4

Figure 1-3. Dimensional Envelope.........................................................................................................1–18

Figure 2-1. Typical Installation of Side-Railings, FP/SL0006...................................................................2–2

Figure 2-2. Typical Customized Rack......................................................................................................2–3

Figure 2-3. Rear Panel.............................................................................................................................2–4

Figure 3-1. IDR/IBS G.703 Master/Master Clocking Diagram...............................................................3–12

Figure 3-2. IDR/IBS G.703 Master/Slave Clocking Diagram.................................................................3–13

Figure 3-3. Clock Slip.............................................................................................................................3–15

Figure 3-4. Doppler Shift........................................................................................................................3–16

Figure 4-1. Modem Front Panel...............................................................................................................4–1

Figure 4-2. Keypad...................................................................................................................................4–4

Figure E-1 10/100/1000 Base-T (GbE) Interface.....................................................................................E–1

Figure E-2. GbE Interface Optional Board................................................................................................E–4

Figure E-3. 1000 Base-T Ethernet (GbE) Card .......................................................................................E–5

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SLM-5650 Satellite Modem Revision 2 Preface

Tables

Table 1-1. Summary of Specification.......................................................................................................1–8

Table 1-2. Acquisition and Timing Performance Requirements ............................................................1–10

Table 1-3. Doppler Requirements..........................................................................................................1–11

Table 1-4. Viterbi Decoder BER.............................................................................................................1–13

Table 1-5. Viterbi Decoder with Reed-Solomon BER............................................................................1–13

Table 1-6. 8-PSK BER Performance, Trellis Decoder...........................................................................1–14

Table 1-7. 8-PSK BER Performance, Trellis Decoder with Reed-Solomon .........................................1–14

Table 1-8. 16-QAM BER Performance, Viterbi Decoder with Reed-Solomon......................................1–14

Table 1-9. BER Performance, TPC Decoding .......................................................................................1–15

Table 1-10. Acceptable ACI Degradation with Spacing Factor of 1.2 ...................................................1–16

Table 3-1. OM-73 Mode............................................................................................................................3–1

Table 3-2. MIL-STD-188-165A Mode.......................................................................................................3–2

Table 3-3. IESS-308 Mode – Standard Higher Rates..............................................................................3–3

Table 3-4. IESS-308 Mode - Extended....................................................................................................3–6

Table 3-5. IESS-309 Mode – Extended (Closed Network)......................................................................3–8

Table 3-6. IESS-310 Mode – Extended Rates.........................................................................................3–9

Table 3-7. Turbo Code Mode...................................................................................................................3–9

Table 3-8. 16-QAM Mode.......................................................................................................................3–10

Table A-1. Viterbi Decoding Summary.....................................................................................................A–2

Table A-2. Open Network Modes.............................................................................................................A–4

Table A-3. Concatenated RS Coding Summary......................................................................................A–5

Table A-4. 8-PSK/TCM Coding Summary ...............................................................................................A–6

Table A-5. Available TPC Modes.............................................................................................................A–6

Table E-1. Interface Specifications..........................................................................................................E–2

Table E-2. Connector Pinout....................................................................................................................E–4

viii

SLM-5650 Satellite Modem Revision 2 Preface

About this Manual

This manual describes the installation and operation for the Comtech EF Data SLM-5650 Satellite Modem. This is a technical document intended for earth station engineers, technicians, and operators responsible for the operation and maintenance of the SLM-5650.

Chapter 1. Introduction

Figure 1-1. SLM-5650

1–1

SLM-5650 Satellite Modem Revision 2 Introduction MN/SLM5650.IOM

1.1.1 Features

The modem incorporates the following:

• MIL-STD-188-165A compliant (Types A, B, D, E, F)

• Intel-Sat IESS-308, -309, -310, and -315

• 64 kbps to 52 Mbps (Modulation, code rate, and interface dependent)

• Selectable 70/140 MHz or 950 to 2000 MHz IF interfaces

• BPSK, QPSK, OQPSK, 8-PSK, and 16-QAM

• Adaptive Equalizer for high order modulation types

• FEC Rates: 5/16, 1/2, 2/3, 3/4, 5/6, 7/8, 17/18 and 1/1

• Viterbi and Reed-Solomon Codec

• Turbo Product Codec (Optional)

• EIA-530/422 Data Interface (built in, to 20 Mbps)

• EIA-613/HSSI Data Interface (built in, to 52 Mbps)

• Optional Plug in Data Interface supports Gigabit Ethernet and others

• Data Source Bit Synchronization (Clock recovery for input data without an

associated transmit clock)

• Asymmetrical Loop Timing

• Full featured, built-in BER test-set

• Electrical and Ethernet Rx constellation monitor

• EIA-485 and EIA-232 interface for remote control

• Ethernet interface for remote control using HTTP, Telnet, and SNMP

• Flash upgrade capability

The modem is compliant with the provisions of MIL-STD-188-165A, DoD Standard, Interoperability of SHF Satellite Communications PSK Modems (Frequency Division Multiple Access (FDMA) Operation).

The modem is fully interoperable with legacy OM-73 modems and other Government owned Commercial off-the-Shelf (COTS) and International Telecommunications Satellite Organization (INTELSAT) compatible PSK modems.

The modem can be controlled and monitored from a variety of platforms, including its own front panel controls and indicators, a co-located Personal Computer (PC) and remote control systems such as the Comtech Monitor and Control System (CMCS) and the Vipersat Network

anagement System (VNMS).

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SLM-5650 Satellite Modem Revision 2 Introduction MN/SLM5650.IOM

1.1.2 Options

How Enabled Option

FAST Variable data rates from 64 kbps to 5, 10, 20, or 52 Mbps FAST 8-PSK and 16-QAM FAST Turbo Data Rates to 5, 10, 20, and 52 Mbps FAST Automatic Uplink Power Control (AUPC) Hardware Turbo FEC (Card) Hardware Gigabit Ethernet Interface (Card)

1.2 Modem Design

The modem was designed to accommodate a wide range of currently required features and to be able to support both near term and far term advances in both software defined radio technology as well as advances in FEC technology.

The user has the ability to:

• Add or change modular data interfaces and FEC assemblies

• Utilize an extensive array of built in test capabilities

• Be able to easily upgrade the modems capability in the field

• Be able to easily upgrade the modems software in the field

• Have a wide range of flexible remote control options

The user can expect:

• A highly reliable modem

• Low weight and low power dissipation

• A rugged, one-rack unit enclosure that defines state of the art.

The modem is designed for installation in fixed or mobile Earth Terminal (ET) facilities (sites) using Defense Satellite Communications System III (DSCS III), DSCS III/Satellite Life Enhancement Program (SLEP), Wideband Gap filler System (WGS), and commercial satellites.

1.3 Modem Description

The modem accepts signals from a selected digital signal source and modulates either a 70/140 MHz or L-Band Intermediate Frequency (IF) carrier with these signals. The demodulator will receive (Rx) a signal from either a 70/140 MHz or L-Band IF input interface, then demodulate the IF carrier. Clock and data are recovered and output on a selected data interface. The transmit and receive functions are independent with respect to coding, interleaving, overhead, and scrambling. The modem will not allow simplex operation in the 70/140 and simplex operation in the L-Band IF interfaces at the same time. The modem will allow duplex operation in either one of the two IF interfaces.

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SLM-5650 Satellite Modem Revision 2 Introduction MN/SLM5650.IOM

64 kbps to 20 Mbps

64 kbps to 52 Mbps

Optional Interface Gigabit Interface

Remote Port

Ethernet

Alarms

Data Interface

EIA-530

Data Interface

HSSI

Data Interface

Optional Slot

Overhaul Data

Interface

EIA-232 EIA-485

10/100 BaseT

Alarms

Tx/Rx

Baseband

Processing

Bit Error Test Set

Reed-Solomon

Bypass

Reed-Solomon

Bypass Bypass

Power Supply

Tx FEC

Viterbi

Optional FEC Slot

Slot#1 Turbo Tx/Rx

Slot#2 LDPC (Future)

Rx FEC

Viterbi

Keypad

Display

Constellation

Demodulator

Nyquist Filtering

Modulator

Nyquist Filtering

Mapping

Acquisition

Rx Synth

Figure 1-2. SLM-5650 Block Diagram

70/140

Tx/Synth

L-Band

70/140

RX Synth

IF Sections

Power Control

L-Band

Tx Synth

Power

Control

AGC

Tx 70/140 MHz

Tx L-Band

Rx L-Band

RX 70/140 MHz

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SLM-5650 Satellite Modem Revision 2 Introduction MN/SLM5650.IOM

1.4 Operating Modes

The modem supports Closed Network, Open Network and OM-73 modes of operation described as follows.

1.4.1 Closed Networks

Closed networks refer to private networks with modem operational parameters that do not need to interoperate with modems developed for commercial open networks, as specified under the IESS308, IESS-309, and IESS-310.

The modem, however, is capable of operating in such closed networks over commercial satellites IAW INTELSAT requirements for closed network operation.

A Comtech EF Data overhead channel is provided for use during Closed Network operation.

1.4.2 Open Networks (INTELSAT)

Open networks refer to networks that must meet INTELSAT specified Effective Isotropic Radiated Power (EIRP), EIRP stability, spurious emissions, intermodulation products, adjacent

carrier interference, frequency tolerance, equalization, and modem parameters such as modulation, FEC, and scrambling.

The modem meets INTELSAT certification requirements and is capable of operating in such open networks over commercial satellites IAW IESS-308, IESS-309, and IESS-310 requirements for open network operation.

In order to be fully compatible with commercial modems complying with IESS-308, IESS-309, and IESS-310, the modem supports the overhead framing integral to those modems. It is important to note that no access to the overhead channel data or alarms is provided.

1.4.3 OM-73

OM-73 mode allows the SLM-5650 to be compatible with Linkabit’s original OM-73 modem. This modem and it’s operational capabilities have become a defacto standard when operating over DSCS satellites. All OM-73 modes listed in MIL-STD-188-165A are supported.

1.5 Data Interfaces

The SLM-5650 supports two native data interfaces as well as a option slot for an additional modular data interface. The two native interfaces are TIA/EIA-530/422 and TIA/EIA-613 (HSSI). The option interface available at this time is the Gigabit Ethernet. The modem will currently support only one interface at a time.

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SLM-5650 Satellite Modem Revision 2 Introduction MN/SLM5650.IOM

1.5.1 TIA/EIA-530

The TIA/EIA-530 interface supports the physical layer requirements for TIA/EIA-530. It also supports the TIA/EIA-422 electrical interface specification. This interface operates in duplex from 64 kbps to 20 Mbps.

1.5.2 TIA/EIA-613 (HSSI)

The TIA/EIA-613 interface supports the physical layer requirements for TIA/EIA-613. It also supports the TIA/EIA-612 electrical interface specification. This interface operates in duplex from 64 kbps to 51.84 Mbps.

1.5.3 Gigabit Ethernet

In the SLM-5650, the GBEI-5650 performs a simple bridge function and passes IP packets, unaltered, in each direction between the LAN (10/100/1000Base-T interface) and WAN (SLM5650 modulator/demodulator). IP packet traffic is framed via HDLC encapsulation by the GBE5650 logic, and the GBEI-5650 is both the origination and termination point for HDLC encapsulation. HDLC CRC-16 verification is performed on all received (from WAN) HDLC frames.

1.6 Independent Tx and Rx Function

The Tx (modulator) and Rx (demodulator) sides of the modem are functionally independent and separately controllable. The baseband Tx and Rx sides of a communications channel passing through the modem are independently configurable, including the ability to select different parameters (to include data rate, modulation, and coding) in support of asymmetrical operation.

Note: Data interfaces and IF interfaces are not independent.

Example: If the TIA/EIA-530 interface is selected DO NOT USE TIA/EIA-530 to transmit and a HSSI interface to receive. The same principle applies to the IF interfaces if 70/140 is selected DO NOT USE 70/140 to transmit and the L-Band interface to receive.

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SLM-5650 Satellite Modem Revision 2 Introduction MN/SLM5650.IOM

1.7 Interoperability

1.7.1 Interoperability with Legacy Modems

The modem is fully compatible and interoperable with all specified modes of operation of the following legacy modems:

a. OM-73 (V) b. MD-1352 (P)/U (BEM-7650) c. MD-1340 (OM-73 interoperable mode only; orderwire not required) d. MD-1030B

e. SLM-3650

f. SLM-8650

SLM-7650

Note: The remote control protocol will not be backwards compatible.

1.7.2 Protection Switches

Redundancy switching is accommodated with the following protection switches.

Compatible Non-Compatible

CRS-300, 1:10 redundancy switch SMS-300 CRS-311, 1:1 redundancy switch SMS-450

SMS-7000

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SLM-5650 Satellite Modem Revision 2 Introduction MN/SLM5650.IOM

1.8 Summary of Specifications

Table 1-1. Summary of Specification

Parameter Specification

Operating Frequency Range 52 to 88, 104 to 176, 950 to 2000 MHz,

in 100 Hz steps Modulation Types BPSK, QPSK, OQPSK, 8-PSK, 16-QAM Digital Data Rates 64 kbps to 5 Mbps, in 1 bps steps (EIA-530, EIA-613)

64 kbps to 10 Mbps, in 1 bps steps (EIA-530, EIA-613)

64 kbps to 20 Mbps, in 1 bps steps (EIA-530, EIA-613)

64 kbps to 51.840 Mbps, in 1 bps steps (EIA-613) Symbol Rate Range 32 KS/S TO 30 MS/S EXT REF Input TNC Connector, 1, 5, or 10 MHz selectable INT REF Stability 1 x 10-7 Scrambling V.35, OM-73, and Synchronous IDR/IBS Framing Compatibility Support for IBS and IDR framing. Allows basic IBS/IDR Open

Network capable operation. Built-in Test (BIT) Fault and status reporting, BER performance monitoring, IF

Loop-back, programmable test modes, built in Fireberd

emulation with all comprehensive BER measurements. Summary Faults Reported via Front Panel LEDs, 9-pin D sub Alarm connector,

relay contacts for Tx, Rx, Common equipment faults, and Tx

and RX alarms. Open collector faults on the 15-pin D sub Aux

connector. Both data interfaces have open collector faults

available. Monitor and Control EIA-485, EIA-232, 10/100 BASET Ethernet with HTTP, Telnet,

and SNMP.

Modulator Specification

Output Power +10 – 40 dBm, adjustable in 0.1 dB steps Output Return Loss -14 dB (70/140 MHz)

-9 dB (L-Band) Output Impedance Spurious

Harmonics From Carrier (CW) to the greater of the 12th harmonic or

Tx Clock Source Rx, INT, Tx Terrestrial, and Data Source Sync Output Connections TNC for 52 to 88, 104 to 176 MHz

Modulation Timing Jitter Modulation Phase Error Modulator Spectral Inversion Modem can invert the modulated spectrum Transmit Clock and Data

Inversion

50 Ω From Carrier

10 kHz bandwidth)

4000 MHz –60 dBc

Type N for 950 to 2000 MHz < 3 % of the modulation symbol period. < 2 °

Modem can invert the Tx clock and data independently of each other. (EIA-530, EIA-613)

± TX SR TO 500 MHZ –51 dBc (measured in a

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SLM-5650 Satellite Modem Revision 2 Introduction MN/SLM5650.IOM

Table 1-1. System Specification (Continued)

Demodulator Specification

Input Power:

Desired Carrier

Maximum Composite Input Impedance Input Connectors TNC for 52 to 88, 104 to 176

Carrier Acquisition Range Input Return Loss -14 dB (70/140 MHz)

Buffer Clock INT, Tx Terrestrial, Rx Satellite Doppler Buffer 32 to 4,194,304 bits, selectable in bits or mSec

Coding Options

Uncoded 1/1 Viterbi K=7, 1/2, 3/4, and 7/8 rates Viterbi + Reed-Solomon Closed Network, per IESS-308, and IESS-309 Trellis IESS-310 Trellis + Reed-Solomon IESS-310 Turbo Turbo Product Coding (TPC), per IESS-315

Open Network Options

IDR INTELSAT IESS-308 (Framing only)

IBS INTELSAT IESS-310 (Framing only)

+10 to –55 dBm +20 dBm or +40 dBc

50 Ω

Type N for 950 to 2000 MHz

30 kHz, selectable

-9 dB (L-Band)

INTELSAT IESS-310 (Framing only)

INTELSAT IESS-309 (Framing only)

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SLM-5650 Satellite Modem Revision 2 Introduction MN/SLM5650.IOM

1.8.1 Performance

1.8.2 Acquisition and Timing Performance Requirements

Note: The following reference Eb/No is defined as the required Eb/No corresponding to a BER of IE-3 with R-S FEC not enabled.

Table 1-2. Acquisition and Timing Performance Requirements

Parameter Specification

Initial Acquisition

Reacquisition Reacquisition is achieved, as follows, after a period of up to 15 minutes of the

BCI With Tx and Rx random data, the mean time to loss of BCI due to falsely adding or

System Retention Synchronization and BCI are mainta ined for all Eb/N0 above the reference Eb/N0

Receive Timing Jitter Doppler The modem meets the requirements with a Doppler shift, rate of change, and

The modem achieves initial acquisition within the times as specified within ± 30 kHz at the reference Eb/No

• For baseband data rates between 64 kbps and ≤ 128 kbps, the maximum initial acquisition time is 500 seconds.

• For Baseband data rates between 128kbps and ≤ 1544 kbps, the maximum initial acquisition time is 30 seconds.

• For baseband data rates > 1544 kbps, the maximum initial acquisition time is

1.5 seconds.

absence of signal when the carrier returns to within 500 Hz of its original frequency.

• For baseband data rates between 64 kbps and 128 kbps, the maximum reacquisition time shall be 45 seconds.

• For baseband data rates between 128 kbps and 1544 kbps, the maximum reacquisition time shall be 20 seconds.

• For baseband data rates greater than 1544 kbps, the maximum reacquisition time shall be 1 second.

deleting bits is at least 3 days at the reference E maintains BCI over 50 consecutive bits of all ones or zeros, which occur no more than once in 10,000 bits, without employing data scra mbl ing .

(BPSK/QPSK/OQPSK/8-PSK) for signal loss of up to 50 modulation symbol periods, with a probability of at least 90 percent.

The Rx output clock peak timing jitter cannot exceed ± 5 percent at the reference E

when the modulated signal meets the modulation timing jitter requirement.

b/N0

acceleration for satellite inclination up to ± 7° as presented in Table A-6, and an additional 0.5 dB added to the reference E

b/N0

. In addition, the modem

b/N0

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SLM-5650 Satellite Modem Revision 2 Introduction MN/SLM5650.IOM

Table 1-3. Doppler Requirements

Parameter C-Band X-Band Ku-Band Ka-Band

Doppler Shift in Hz ± 2475 ± 3535 ± 6045 ± 11,810

Doppler Rate of Change in Hz/sec ± 226 ± 270 ± 490 ± 1046 Doppler Acceleration in Hz/sec2 ± 243 ± 290 ± 526 ± 112 4

1.8.3 Data Quality Performance

1.8.3.1 OM-73 Compatible Mode Performance

Operating in the OM-73-compatible mode, SLM-5650 BER vs. Eb/N0 performance with differential encoding and data scrambling enabled does not exceed values shown in Table 1-4 though Table 1-9.

1.8.3.2 MIL-STD-188-165A Compatible Mode Performance

Operating with BPSK, QPSK, or OQPSK modulation in the MIL-STD-188-165A compatible mode, SLM-5650 BER vs. E data scrambling enabled will not exceed values shown in Table 1-4 (without ReedSolomon) or Table 1-5 (with Reed-Solomon) tested in an IF back-to-back configuration over the BER range 5 x 10

-03

to 1 x 10

Operating with 8-PSK modulation and rate 2/3 pragmatic trellis coding (without ReedSolomon outer coding), SLM-5650 BER vs. E the values shown in Table 1-6 when tested in an IF back-to-back configuration.

Operating with 8-PSK modulation, rate 2/3 pragmatic trellis coding, and Reed-Solomon (219,201) outer coding, SLM-5650 BER vs. E the values shown in Table 1-7 when tested in an IF back-to-back configuration.

performance with differential encoding and

b/N0

-07

performance is less than or equal to

b/N0

performance is better than or equal to

b/N0

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1.8.3.3 IESS-308 Compatible Mode Performance

When operating in the IESS-308 Compatible Mode, SLM-5650 BER vs. Eb/N0 performance is as specified in IESS-308.

1.8.3.4 IESS-309 Compatible Mode Performance

When operating in the IESS-309 Compatible Mode, SLM-5650 BER vs. Eb/N0 performance is as specified in IESS-309.

1.8.3.5 IESS-310 Compatible Mode Performance

When operating in the IESS-310 Compatible Mode, SLM-5650 BER vs. Eb/N0 performance is as specified in IESS-310.

1.8.3.6 16-QAM Coding Mode Performance

The SLM-5650 operating in the 16-QAM mode provides back-to-back BER vs. Eb/N0 performance better than or equal to the values shown in Table 1-8 when using the modulation formats indicated.

1.8.3.7 Turbo Coding Mode Performance

The SLM-5650 operating in the turbo code mode provides back-to-back BER vs. Eb/N0 performance better than or equal to the values shown in Table 1-9 when using the modulation formats indicated.

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1.8.3.8 BER

1.8.3.8.1 BPSK/QPSK/Offset QPSK BER Performance, Viterbi Decoding

Table 1-4 applies to BPSK, QPSK, and OQPSK rates.

Table 1-4. Viterbi Decoder BER

Eb/No (dB) Specification

Viterbi Decoder

BER 1/2 Rate 3/4 Rate 7/8 Rate Uncoded

10-3 3.8 5.0 6.3 10-4 4.7 5.9 7.1 10-5 5.3 6.6 7.8 10.8 10-6 5.9 7.2 8.4 11.6 10-7 6.5 7.8 9.0 12.4 10-8 7.1 8.3 9.5 13.0

1.8.3.8.2 BPSK/QPSK/Offset QPSK BER Performance, Viterbi Decoding and Reed-Solomon

Table 1-5 applies to BPSK, QPSK, and OQPSK rates.

Table 1-5. Viterbi Decoder with Reed-Solomon BER

Eb/No (dB) Specification

Viterbi Decoder with reed-Solomon

BER 1/2 Rate 3/4 Rate 7/8 Rate

10-6 4.1 5.6 6.7 10-7 4.4 6.0 7.1 10-8 5.0 6.3 7.5

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1.8.3.8.3 8-PSK BER Performance, Trellis Decoder

Table 1-6 applies to 8-PSK with trellis decoder rates.

Table 1-6. 8-PSK BER Performance, Trellis Decoder

Eb/No (dB) Specifications

Viterbi Decoder

BER 2/3 Rate 5/6 Rate

10-3 6.5 8.7 10-4 7.3 9.4 10-5 8.1 10.1 10-6 8.9 10.8 10-7 9.6 11.6

0-8

10.2 12.3

1.8.3.8.4 8-PSK BER Performance, Trellis Decoder and Reed-Solomon

Table 1-7 applies to 8-PSK with trellis decoder and reed-solomon rates.

Table 1-7. 8-PSK BER Performance,

Trellis Decoder with Reed-Solomon

Eb/No (dB) Specifications

Viterbi Decoder

BER 2/3 Rate 5/6 Rate

10-6 6.2 8.2 10-7 6.5 8.5 10-8 6.7 8.9 10-9 6.9 9.3

-10

7.2 9.7

1.8.3.8.5 16-QAM BER Performance, Viterbi Decoder and Reed-Solomon

Table 1-8 applies to 16-QAM with Viterbi decoder and reed-solomon rates.

Table 1-8. 16-QAM BER Performance,

Viterbi Decoder with Reed-Solomon

Eb/No (dB) Specifications

Viterbi Decoder

BER 3/4 Rate 7/8 Rate

10-6 8.2 9.5 10-7 8.4 9.8 10-8 8.6 10.1 10-9 8.8 10.3

-10

9.0 10.6

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1.8.3.8.6 BER Perf ormance, Turbo Products Code Decoding

Table 1-9 applies to Turbo Products Code (TPC) decoding rates.

Table 1-9. BER Performance, TPC Decoding

Eb/No (dB) Specification BPSK QPSK/OQPSK BER 21/44 5/16 21/44 3/4 7/8 17/18

10-6 3.3 2.5 3.3 3.9 4.3 6.8 10-7 3.4 2.8 3.4 4.1 4.4 7.1 10-8 3.5 3.1 3.5 4.3 4.5 7.4 10-9 3.6 3.4 3.6 4.8 4.6 7.7

-10

3.7 3.7 4.7

Eb/No Specification

8-PSK 16-QAM

BER 3/4 7/8 17/18 3/4 7/8

10-6 6.5 7.1 10.0 7.6 8.2 10-7 6.9 7.2 10.6 8.0 8.4 10-8 7.2 7.3 11.2 8.4 8.5 10-9 7.5 7.4 11.8 8.7 8.7

-10

7.8 7.5 9.0 8.8

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1.8.4 BER Performance with Symmetrical Adjacent Carriers

Operating in the presence of two adjacent symmetrical carriers (one lower in frequency and one higher in frequency with same modulation, data rate, and coding), the modem performance is not degraded more than as indicated in Table 1-10, Column three, and a and b. This performance is measured with the adjacent carriers center frequencies offset XR the carrier under test, where X is the spacing factor and R

is the modulation symbol rate in Hz of

the symmetrical carriers.

The BER of the test carrier is measured at the specified carrier Ratio of Energy per Symbol to Noise Power Density in a 1 Hz Bandwidth (E

) Carrier to Noise Ratio (C/N) without the

s/N0

adjacent carriers. The adjacent ca rriers are a pplied at the specified center fre que ncies and E the BER of the test carrier is measured. The change in BER is equal to the change in E on the characterization curve of the test carrier and the amount of Adjacent Channel Interference (ACI) degradation. For modulation symbol rates below 38.4 ksps, this paragraph does not apply.

Hz from the center frequency of

and

s/N0

based

b/N0

Table 1-10. Acceptable ACI Degradation with Spacing Factor of 1.2

Test Carrier Es/N0 (dB)

5.5 18.5 < 0.36 < 0.41

6.0 19.0 < 0.38 < 0.43

8.0 21.0 < 0.48 < 0.56

8.4 21.4 < 0.51 < 0.60

10.0 23.0 < 0.64 < 0.77

12.0 25.0 < 0.88 < 1.10

12.7 25.7 < 0.99 < 1.21

Adjacent Carriers Es/N0 (dB)

Eb/N0 Degradation (dB) Symmetric Case

Eb/N0 Degradation (dB) Asymmetric Case

a. For X (spacing factor) = 1.2, the symmetric degradation shall be IAW one of the values

in Table 1-17 Column three, and corresponding test carrier E test carrier E test configuration. The adjacent carriers E

that will yield timely results based on modulation and coding used in the

s/N0

shall be set to corresponding value in

s/N0

in Column one. Select a

s/N0

Column two.

b. For the case of X (spacing factor) = 1.4, the degradation is less than 0.2 dB.

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1.8.5 BER Performance with Asymmetrical Adjacent Carriers

Operating in the presence of two adjacent asymmetrical carriers, one lower in frequency and one higher in frequency, and each adjacent carrier symbol rate (R" performance is not degraded more than indicated in Table 1-10, Column four, and a and b. Performance is measured with the adjacent carriers center frequencies offset (X/2) times (R'

+ R"s) Hz from the test carrier center frequency, where X is the spacing factor and R's is the

modulation symbol rate in Hz of the test carrier, and R"

each adjacent carrier. For modulation symbol rates below 38.4 ksps, this paragraph does not apply.

) = 2.0 R's, the modem

is the modulation symbol rate in Hz of

a. For X (spacing factor) = 1.2, and R"

= 2.0 R's, the asymmetric degradation shall

be IAW one of the values in Table 1-10, Column four, and the corresponding test carrier E

in Column one. Select a test carrier Es/N0 that will yield timely

s/N0

results based on modulation and coding used in the test configuration. The adjacent carriers E

b. For the case of (1.4/2)(R'

are set to the corresponding value in Column two.

s/N0

+ R"s) Hz carrier spacing, the degradation is

< 0.2 dB.

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1.9 Dimensional Envelope

Figure 1-3. Dimensional Envelope

1–18

Chapter 2. INSTALLATION

This chapter provides unpacking and installation instructions, system options, and a description of external connections and backward alarm information.

The equipment contains parts and assemblies sensitive to damage by Electrostatic Discharge (ESD). Use ESD precautionary procedures when

CAUTION

2.1 Unpacking

The modem and manual are packaged in pre-formed, reusable, cardboard cartons containing foam spacing for maximum shipping protection.

CAUTION

To remove the modem:

touching, removing, or inserting PCBs.

Do not use any cutting tool that will extend more than 1” into the container and cause damage to the modem.

Step Procedures

1 Cut the tape at the top of the carton indicated by OPEN THIS END. 2 Remove the cardboard/foam space covering the modem. 3 Remove the modem, manual, and power cord from the carton. 4 Save the packing material for storage or reshipment purposes. 5 Inspect the equipment for any possible damage incurred during shipment. 6 Check the equipment against the packing list to ensure the shipment is

correct.

7 Refer to Section 2.2 for installation instructions.

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2.2 Installation

2.2.1 Optional Installation of Side-Railings

Install optional side-railings (FP/SL0006), as follows:

Quantity Part Number Description

2 FP/SL0006 Side-Railings

Use standard shop tooling. Install the side-railings with customer-furnished standard shop hardware.

Figure 2-1. Typical Installation of Side-Railings, FP/SL0006

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2.2.2 Optional Installation Using a Typical Customer Rack

Step Procedures

1 Mount the modem chassis in the assigned position of the equipment rack.

Support the modem by either a rack-mounted shelf, or the two rear rackmounted brackets supplied with the unit.

Note: For a custom rack installation, refer to the rack drawing in

Figure 2-1. Additional information can be obtained from Comtech EF Data

Customer Support: www.comtechefdata.com 2 Connect the cables to the proper locations on the rear panel. 3 Before turning the power switch on, become familiar with front panel

operation in Chapter 4. 4 Turn on the power switch. 5 Check for the proper transmitter (TX) ou tput signal level and spectrum. 6 Check for proper receiver (RX) input signal level and function. 7 If there is any problem with the installation, refer to Chapter 5 for

troubleshooting information.

Note: Cool air is drawn in on the left side and hot air is exhausted on the right side.

Figure 2-2. Typical Customized Rack

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2.3 External Connections

The connectors on the rear panel of the SLM-5650 are shown in Figure 2-4 and described in the following paragraphs.

Name

EXT REF J1 TNC Modem Reference Tx J11 TNC 70/140 MHz Rx J3 TNC 70/140 MHz Tx J2 Type N L-Band Rx J4 Type N L-Band Ethernet J5 RJ-45 10/100 Base-T, Remote Control EIA-530 J6 25-Pin Female Data Input /Output, to 20 Mbps HSSI J7 52-Pin Female Data Input /Output, to 52 Mbps Overhead Data P1 25-Pin Male Not Used Alarms J8 9-Pin Female Form-C Alarms Auxiliary J9 15-Pin Female Remote J10 9-Pin Female Remote Interface AC IEC Modem Power Ground 10-32 stud Chassis Grounding Interface Option Slot

Note: To maintain compliance with the European EMC Directive (EN55022, EN50082-1) properly shielded cables are required for all data I/O.

Ref Des Connector Type Function

Supports optional data

interfaces, including but not limited to the Gigabit Ethernet

Figure 2-3. Rear Panel

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SLM-5650 Satellite Modem Revision 2 Installation MN/SLM5650.IOM

2.3.1 External Reference, (J1)

The external reference uses a standard 50 Ω, TNC female connector.

TNC Connector Reference Description Direction

EXT REF J1 External Reference 1, 5, 10 MHZ Input

2.3.2 70 / 140 IF Interface Connectors

The 70 / 140 IF use standard 50 Ω, TNC female connectors.

TNC Connector Reference Description Direction

Rx J3 52-88, 104-176 MHz Receive Input Tx J11 52-88, 104-176 MHz Transmit Output

2.3.3 L-Band IF Interface Connectors

The L-Band IF uses standard 50 Ω, Type N female connectors.

Type N Connector Reference Description Direction

Rx J4 950-2000 MHz Receive Input Tx J2 950-2000 MHz Transmit Output

2.3.4 Ethernet Remote Control Connector, (J5)

The Ethernet connector is an 8-pin 'RJ-45' type 10/100 Base-T. Remote control of the modem is provided using SNMP, HTTP or Telnet with this port.

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2.3.5 EIA-530 Connector, (J6)

The Data connector is a 25-pin ‘D’ type female (DB25-F). This connector conforms to the EIA530 pin-out for EIA-422 operation only.

Pin # Name

1 Ground

14 SD_B

2 SD_A

15 ST_A

3 RD_A

16 RD_B

4 RS_A

17 RT_A

5 CS_A

18 MOD FLT OC

6 DM_A

19 RS_B

7 Ground

20 Not Used

8 RR_A

21 DMD FLT OC

9 RT_B 22 DM_B 10 RR_B 23 Not Used 11 TT_B 24 TT_A 12 ST_B 25 Not Used 13 CS_B

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2.3.6 HSSI Connector, (J7)

Notes:

1. 52-pin connector

2. These are non-HSSI defined signals. On Cisco routers there is no connection to those pins.

Fault => Open No Fault => Ground

Pin # Name

1 Ground

26 Ground

2 RT+

27 RT-

3 CA+

28 CA-

4 RD+

29 RD-

5 Not Used

30 Not Used

6 ST+

31 ST-

7 Ground

32 Ground

8 TA+

33 TA-

9 TT+ 34 TT10 Not Used 35 Not Used 11 SD+ 36 SD12 Not Used 37 Not Used 13 Ground 38 Ground 14 Not Used 39 Not Used 15 Not Used 40 Not Used 16 Not Used 41 Not Used 17 Not Used 42 Not Used 18 Not Used 43 Not Used 19 Ground 44 Ground 20 Not Used 45 Demod Fault see Note 2 21 Mod Fault see Note 2 46 Not Used 22 Not Used 47 Not Used 23 Not Used 48 Not Used 24 Not Used 49 Not Used 25 Ground 50 Ground 51 Ground 52 Ground

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2.3.7 Alarms Connector, (J8)

The alarm connector provides Form C contact closures for alarm reporting. The three Form C summary fault contacts are Modulator, Demodulator Common Equipment.

The alarm connection is a 9-pin female D connector (J8) located on the rear panel of the modem. Screw locks are provided for mechanical security on the mating connector.

Pin # Signal Function Name

8 Unit Alarm is faulted NO 3 Unit Alarm is not faulted NC 7 Unit Alarm common COM 5 Rx Alarm is faulted NO 9 Rx Alarm is not faulted NC 4 Rx Alarm common COM 2 Tx Alarm is faulted NO 6 Tx Alarm is not faulted NC 1 Tx Alarm common COM

2.3.8 Auxiliary Connector, (J9)

The auxiliary connector provides TTL open collector faults for the modulator and demodulator. A TTL input for external transmit carrier mute. An Analog demodulator Q and I constellation monitor. A programmable DC voltage monitor for the demodulators AGC.

(9-Pin Connector) The auxiliary connection is a 9-pin female D connector (J9) located on the rear panel of the modem. Screw locks are provided for mechanical security on the mating connector.

Pin # Signal Function Name

1 Chassis Ground GND 2 Spare 3 Demod Q channel Q 4 AGC Monitor test point AGC 5 Tx TTL fault TxFLT 6 Spare 7 Ext carrier off EXT 8 Demod I channel I 9 Rx TTL fault RxFLT

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(15-Pin Connector) The auxiliary connection is a 15-pin female D connector (J9) located on the rear panel of the modem. Screw locks are provided for mechanical security on the mating connector.

Pin # Signal Function Name

1 Chassis Ground GND 2 Spare 3 Demod Q channel Q 4 AGC Monitor test point AGC 5 Tx TTL fault TxFLT 6 Spare 7 Ext carrier off EXT 8 Demod I channel I

9 Rx TTL fault RxFLT 10 11 12 13 14 15

2.3.9 Remote Connector, (J10)

The remote connector is a 9-pin subminiature female D connector (J6) located on the rear panel

of the modem. Screw locks are provided for mechanical security of the mating connector.

The remote connector interfaces the M&C functions to a remote location. The remote location can

be an M&C computer located away from the modem, but attached via cable to the remote connector. This DCE interface is user selectable for either EIA-232 or EIA-484.

EIA-232 EIA-485

Pin #

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

*For EIA-485 2-Wire Operation:

• Only two wires are required.

• Tie pins 4 and 8 together (both +).

• Tie pins 5 and 9 together (both -).

Name

Pinout

Pin #

Name

(2-Wire)

Name

(4-Wire)

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2.3.10 Overhead Data, (P1)

The overhead interface connector is a 25-pin male D interface located on the rear panel of the modem. This connector pin-out allows for connection of EIA-422, EIA-485 and EIA-232 data interfaces for use with overhead framing. It also supports signaling for tactical applications

Pin #

1 EIA-422 Transmit Data “A”, Input Tx Data A

14 EIA-422 Transmit Data “B”, Input Tx Data B

2 EIA-422 Transmit Clock “A”, Output Tx Clk A

15 EIA-422 Transmit Clock “B”, Output Tx Clk B

3 EIA-422 Transmit Byte Sync “A”, Output Tx Sync A

16 EIA-422 Transmit Byte Sync “B”, Output Tx Sync B

4 EIA-422 Receive Data “A”, Output Rx Data A

17 EIA-422 Receive Data “B”, Output Rx Data B

5 EIA-422 Receive Clock “A”, Output Rx Clk A

18 EIA-422 Receive Clock “B”, Output Rx Clk B

6 EIA-422 Receive Byte Sync “A”, Output Rx Sync A

19 EIA-422 Receive Byte Sync “B”, Output Rx Sync B

7 Shield Ground

20 EIA-485 Transmit Data “-“ 485 Tx Data -

8 EIA-485 Transmit Data “+” 485 Tx Data +

21 EIA-422 Transmit Handover Sync “A”, Input THS A

9 EIA-485 Receive Data “-“ 485 Rx Data 22 EIA-485 Receive Data “+” 485 Rx Data + 10 EIA-422 Transmit Handover Sync “B”, Input THS B 23 EIA-232 Clear to Send 232 CTS 11 EIA-232 Receive Data 232 Rx Data 24 EIA-232 Request to Send 232 RTS 12 EIA-232 Transmit Data 232 Tx Data 25 EIA-422 Transmit Handover Control “A”, Input THC A 13 EIA-422 Transmit Handover Control “B”, Input THC B

Signal Function

*For EIA-485 2-Wire Operation:

• Only two wires are required.

• Tie pins 8 and 22 together (both +).

• Tie pins 9 and 20 together (both -).

Name

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2.4 AC Power Connector

A standard, detachable, non-locking, 3-prong power cord (IEC plug) supplies the Alternating Current (AC) power to the modem. Observe the following:

Input Power Input Voltage

Connector Type

Fuse Protection

65W maximum, 50W typical 90 to 132 or 175 to 264 VAC Unit switches ranges automatically I.E.C

1A slo-blo Line and neutral fusing 5 mm type fuses

2.5 Ground Connector (GND)

A #10-32 stud on the rear panel of the modem is used for connecting a common chassis ground among all equipment.

Note: The AC power connector provides the safety ground.

2.6 Gigabit Ethernet

The Gigabit Ethernet interface (AS/11985) supports 10/100/1000 BaseT operation. The LAN interface is comprised of one IEEE 802.3ab 1000Base-T copper interface via a single female RJ45 connector (J1).

Pin # Description Direction

1 BI_DA+ bidirectional 2 BI_DA- bidirectional 3 BI_DB+ bidirectional 4 BI_DC+ bidirectional 5 BI_DC- bidirectional 6 BI_DB- bidirectional 7 BI_DD+ bidirectional 8 BI_DD- bidirectional

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2–12

3.1 Modes

The following tables show the various data rate ranges available for various modes.

Chapter 3. Configuration

Table 3-1.

Data Rate

Modulation Type Min Max Min Max

BPSK 1/1 64 8472 64 10000 BPSK 1/2 64 15000 128 30000 BPSK 3/4 64 22500 85.333 29999.999 BPSK 7/8 64 26250 73.142 30000 QPSK 1/1 64 20000 32 10000 QPSK 1/2 64 30000 64 30000 QPSK 3/4 64 45000 42.666 30000 QPSK 7/8 64 51840 36.571 29622.857 OQPSK 1/ 1 64 20000 32 10000 OQPSK 1/ 2 64 30000 64 30000 OQPSK 3/ 4 64 45000 42.666 30000 OQPSK 7/ 8 64 51840 36.571 29622.857

OM-73 Mode

Symbol Rate (ksps)

(kbps)

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Table 3-2. MIL-STD-188-165A Mode

Modulation Type Min Max Min Max

BPSK 1/1 Off N/A 64 8472 64 10000 BPSK 1/2 Off N/A 64 15000 128 30000 BPSK 3/4 Off N/A 64 22500 85.333 29999.999 BPSK 7/8 Off N/A 64 26250 73.142 30000 QPSK 1/1 Off N/A 64 20000 32 10000 QPSK 1/2 Off N/A 64 30000 64 30000 QPSK 3/4 Off N/A 64 45000 42.666 30000 QPSK 7/8 Off N/A 64 51840 36.571 29622.857 OQPSK 1/ 1 Off N/A 64 20000 32 10000 OQPSK 1/ 2 Off N/A 64 30000 64 30000 OQPSK 3/ 4 Off N/A 64 45000 42.666 30000 OQPSK 7/ 8 Off N/A 64 51840 36.571 29622.857 8-PSK 2/ 3 Off N/A 256 51840 128 25920 8-PSK 5/ 6 Off N/A 256 51840 102.4 20736 BPSK 1/2 126,112 4, 8 64 13333.333 144 29999.999 BPSK 1/2 219,201 4, 8 64 13767.123 139.462 29999.999 BPSK 1/2 225,205 4, 8 64 13666.666 140.487 29999.998 BPSK 1/2 220,200 4, 8 64 13636.363 140.8 29999.999 BPSK 3/4 126,112 4, 8 64 20000 96 30000 BPSK 3/4 219,201 4, 8 64 20650.684 92.975 29999.998 BPSK 3/4 225,205 4, 8 64 20500 93.658 29999.999 BPSK 3/4 220,200 4, 8 64 20454.545 93.867 29999.999 BPSK 7/8 126,112 4, 8 64 23333.333 82.826 30000 BPSK 7/8 219,201 4, 8 64 24092.465 79.692 29999.999 BPSK 7/8 225,205 4, 8 64 23916.666 80.278 29999.999 BPSK 7/8 220,200 4, 8 64 23863.636 80.457 30000 QPSK 1/2 126,112 4, 8 64 26666.666 72 29999.999 QPSK 1/2 219,201 4, 8 64 27534.246 69.371 29999.999 QPSK 1/2 225,205 4, 8 64 27333.333 70.243 29999.999 QPSK 1/2 220,200 4, 8 64 27272.727 70.4 30000 QPSK 3/4 126,112 4, 8 64 40000 48 30000 QPSK 3/4 219,201 4, 8 64 41301.369 46.487 29999.999 QPSK 3/4 225,205 4, 8 64 41000 46.829 30000 QPSK 3/4 220,200 4, 8 64 40909.090 46.933 30000 QPSK 7/8 126,112 4, 8 64 46666.666 41.143 30000 QPSK 7/8 219,201 4, 8 64 48184.931 39.846 29999.999 QPSK 7/8 225,205 4, 8 64 47833.333 40.139 29999.999 QPSK 7/8 220,200 4, 8 64 47727.272 40.229 30000 OQPSK 1/ 2 126,112 4, 8 64 26666.666 72 29999.999 OQPSK 1/ 2 219,201 4, 8 64 27534.246 69.371 29999.999 OQPSK 1/ 2 225,205 4, 8 64 27333.333 70.243 29999.999 OQPSK 1/ 2 220,200 4, 8 64 27272.727 70.4 30000 OQPSK 3/ 4 126,112 4, 8 64 40000 48 30000 OQPSK 3/ 4 219,201 4, 8 64 41301.369 46.487 29999.999 OQPSK 3/ 4 225,205 4, 8 64 41000 46.829 30000 OQPSK 3/ 4 220,200 4, 8 64 40909.090 46.933 30000

R-S Code Word

R-S Depth Data Rate

(kbps)

Symbol Rate (ksps)

3–2

SLM-5650 Satellite Modem Revision 2 Configuration MN/SLM5650.IOM

Modulation Type Min Max Min Max

OQPSK 7/ 8 126,112 4, 8 64 46666.666 41.143 30000 OQPSK 7/ 8 219,201 4, 8 64 48184.931 39.846 29999.999 OQPSK 7/ 8 225,205 4, 8 64 47833.333 40.139 29999.999 OQPSK 7/ 8 220,200 4, 8 64 47727.272 40.229 30000 8-PSK 2/ 3 126,112 4, 8 256 51840 144 29160 8-PSK 2/ 3 219,201 4, 8 256 51840 139.462 28241.194 8-PSK 2/ 3 225,205 4, 8 256 51840 140.487 28448.78 8-PSK 2/ 3 220,200 4, 8 256 51840 140.8 28512 8-PSK 5/ 6 126,112 4, 8 256 51840 115.2 23328 8-PSK 5/ 6 219,201 4, 8 256 51840 111.57 22592.955 8-PSK 5/ 6 225,205 4, 8 256 51840 112.39 22759.024 8-PSK 5/ 6 220,200 4, 8 256 51840 112.64 22809.6

R-S Code Word

R-S Depth Data Rate

(kbps)

Symbol Rate (ksps)

Table 3-3.

Modulation Type

QPSK 1/2 IESS-308 Off N/A 1544 1640 QPSK 1/2 IESS-308 Off N/A 2048 2144 QPSK 1/2 IESS-308 Off N/A 6312 6408 QPSK 1/2 IESS-308 Off N/A 8448 8544 QPSK 1/2 IESS-308 194,178 4, 8, 16 1544 1778.787 QPSK 1/2 IESS-308 194,178 4, 8, 16 2048 2328.09 QPSK 1/2 IESS-308 194,178 4, 8, 16 6312 6975.371 QPSK 1/2 IESS-308 194,178 4, 8, 16 8448 9303.371 QPSK 1/2 IESS-308 219,201 4, 8, 16 1544 1778.269 QPSK 1/2 IESS-308 219,201 4, 8, 16 2048 2327.403 QPSK 1/2 IESS-308 219,201 4, 8, 16 6312 6973.254 QPSK 1/2 IESS-308 219,201 4, 8, 16 8448 9300.537 QPSK 1/2 IESS-308 225,205 4, 8, 16 1544 1790.634 QPSK 1/2 IESS-308 225,205 4, 8, 16 2048 2343.805 QPSK 1/2 IESS-308 225,205 4, 8, 16 6312 7023.805 QPSK 1/2 IESS-308 225,205 4, 8, 16 8448 9368.195 QPSK 1/2 IESS-308 126,112 4, 8, 16 1544 1833 QPSK 1/2 IESS-308 126,112 4, 8, 16 2048 2400 QPSK 1/2 IESS-308 126,112 4, 8, 16 6312 7197 QPSK 1/2 IESS-308 126,112 4, 8, 16 8448 9600 QPSK 1/2 IESS-308 208,192 4, 8, 16 1544 1776.708 QPSK 1/2 IESS-308 208,192 4, 8, 16 2048 2325.333 QPSK 1/2 IESS-308 208,192 4, 8, 16 6312 6966.875 QPSK 1/2 IESS-308 208,192 4, 8, 16 8448 9292 QPSK 3/4 IESS-308 Off N/A 1544 1029.333 QPSK 3/4 IESS-308 Off N/A 2048 1365.333 QPSK 3/4 IESS-308 Off N/A 6312 4208 QPSK 3/4 IESS-308 Off N/A 8448 5632 QPSK 3/4 IESS-308 Off N/A 32064 21376 QPSK 3/4 IESS-308 Off N/A 34368 22912 QPSK 3/4 IESS-308 Off N/A 44736 29824 QPSK 3/4 IESS-308 194,178 4, 8, 16 1544 1217.858

Overhead R-S Code

IESS-308 Mode – Standard Higher Rates

Word

R-S Depth Data Rate

(kbps)

Symbol Rate

(ksps)

3–3

SLM-5650 Satellite Modem Revision 2 Configuration MN/SLM5650.IOM

Modulation Type

QPSK 3/4 IESS-308 194,178 4, 8, 16 2048 1584.06 QPSK 3/4 IESS-308 194,178 4, 8, 16 6312 4682.247 QPSK 3/4 IESS-308 194,178 4, 8, 16 8448 6324.247 QPSK 3/4 IESS-308 194,178 4, 8, 16 32064 23393.438 QPSK 3/4 IESS-308 194,178 4, 8, 16 34368 25067.506 QPSK 3/4 IESS-308 219,201 4, 8, 16 1544 1217.512 QPSK 3/4 IESS-308 219,201 4, 8, 16 2048 1583.602 QPSK 3/4 IESS-308 219,201 4, 8, 16 6312 4680.836 QPSK 3/4 IESS-308 219,201 4, 8, 16 8448 6232.358 QPSK 3/4 IESS-308 219,201 4, 8, 16 32064 23386.269 QPSK 3/4 IESS-308 219,201 4, 8, 16 34368 25059.821 QPSK 3/4 IESS-308 225,205 4, 8, 16 1544 1225.756 QPSK 3/4 IESS-308 225,205 4, 8, 16 2048 1594.537 QPSK 3/4 IESS-308 225,205 4, 8, 16 6312 4714.537 QPSK 3/4 IESS-308 225,205 4, 8, 16 8448 6277.463 QPSK 3/4 IESS-308 225,205 4, 8, 16 32064 23557.463 QPSK 3/4 IESS-308 225,205 4, 8, 16 34368 25243.317 QPSK 3/4 IESS-308 126,112 4, 8, 16 1544 1254 QPSK 3/4 IESS-308 126,112 4, 8, 16 2048 1632 QPSK 3/4 IESS-308 126,112 4, 8, 16 6312 4830 QPSK 3/4 IESS-308 126,112 4, 8, 16 8448 6432 QPSK 3/4 IESS-308 126,112 4, 8, 16 32064 24144 QPSK 3/4 IESS-308 126,112 4, 8, 16 34368 25872 QPSK 3/4 IESS-308 208,192 4, 8, 16 1544 1216.472 QPSK 3/4 IESS-308 208,192 4, 8, 16 2048 1582.222 QPSK 3/4 IESS-308 208,192 4, 8, 16 6312 4676.583 QPSK 3/4 IESS-308 208,192 4, 8, 16 8448 626.667 QPSK 3/4 IESS-308 208,192 4, 8, 16 32064 23364.667 QPSK 3/4 IESS-308 208,192 4, 8, 16 34368 25036.667 QPSK 7/8 IESS-308 Off N/A 1544 882.286 QPSK 7/8 IESS-308 Off N/A 2048 1170.286 QPSK 7/8 IESS-308 Off N/A 6312 3606.857 QPSK 7/8 IESS-308 Off N/A 8448 4827.428 QPSK 7/8 IESS-308 Off N/A 32064 20040.571 QPSK 7/8 IESS-308 Off N/A 34368 21473.714 QPSK 7/8 IESS-308 Off N/A 44736 27922.857 QPSK 7/8 IESS-308 194,178 4, 8, 16 1544 1057.592 QPSK 7/8 IESS-308 194,178 4, 8, 16 2048 1371.48 QPSK 7/8 IESS-308 194,178 4, 8, 16 6312 4027.069 QPSK 7/8 IESS-308 194,178 4, 8, 16 8448 5357.355 QPSK 7/8 IESS-308 194,178 4, 8, 16 32064 20065.233 QPSK 7/8 IESS-308 194,178 4, 8, 16 34368 21500.148 QPSK 7/8 IESS-308 194,178 4, 8, 16 44736 27957.265 QPSK 7/8 IESS-308 219,201 4, 8, 16 1544 1057.296 QPSK 7/8 IESS-308 219,201 4, 8, 16 2048 1371.087 QPSK 7/8 IESS-308 219,201 4, 8, 16 6312 4025.859 QPSK 7/8 IESS-308 219,201 4, 8, 16 8448 5355.736 QPSK 7/8 IESS-308 219,201 4, 8, 16 32064 20059.087 QPSK 7/8 IESS-308 219,201 4, 8, 16 34368 21493.561 QPSK 7/8 IESS-308 219,201 4, 8, 16 44736 27948.691 QPSK 7/8 IESS-308 225,205 4, 8, 16 1544 1064.362 QPSK 7/8 IESS-308 225,205 4, 8, 16 2048 1380.46

Overhead R-S Code

Word

R-S Depth Data Rate

(kbps)

Symbol Rate

(ksps)

3–4

SLM-5650 Satellite Modem Revision 2 Configuration MN/SLM5650.IOM

Modulation Type

QPSK 7/8 IESS-308 225,205 4, 8, 16 6312 4054.743 QPSK 7/8 IESS-308 225,205 4, 8, 16 8448 5394.397 QPSK 7/8 IESS-308 225,205 4, 8, 16 32064 20205.826 QPSK 7/8 IESS-308 225,205 4, 8, 16 34368 26150.843 QPSK 7/8 IESS-308 225,205 4, 8, 16 44736 28153.422 QPSK 7/8 IESS-308 126,112 4, 8, 16 1544 1088.571 QPSK 7/8 IESS-308 126,112 4, 8, 16 2048 1412.571 QPSK 7/8 IESS-308 126,112 4, 8, 16 6312 4153.714 QPSK 7/8 IESS-308 126,112 4, 8, 16 8448 5526.857 QPSK 7/8 IESS-308 126,112 4, 8, 16 32064 20708.571 QPSK 7/8 IESS-308 126,112 4, 8, 16 34368 22189.714 QPSK 7/8 IESS-308 126,112 4, 8, 16 44736 28854.857 QPSK 7/8 IESS-308 208,192 4, 8, 16 1544 1056.405 QPSK 7/8 IESS-308 208,192 4, 8, 16 2048 1369.905 QPSK 7/8 IESS-308 208,192 4, 8, 16 6312 4022.214 QPSK 7/8 IESS-308 208,192 4, 8, 16 8448 5350.857 QPSK 7/8 IESS-308 208,192 4, 8, 16 32064 20040.571 QPSK 7/8 IESS-308 208,192 4, 8, 16 34368 21473.714 QPSK 7/8 IESS-308 208,192 4, 8, 16 44736 27922.857

Overhead R-S Code

Word

R-S Depth Data Rate

(kbps)

Symbol Rate

(ksps)

3–5

SLM-5650 Satellite Modem Revision 2 Configuration MN/SLM5650.IOM

Table 3-4.

Modulation Type Min Max Min Max

QPSK 1/2 None Off N/A 64 30000 64 30000 QPSK 1/2 None 126,112 4, 8, 16 64 26666.666 72 29999.999 QPSK 1/2 None 219,201 4, 8, 16 64 27534.246 69.371 29999.999 QPSK 1/2 None 194,178 4, 8, 16 64 27525.773 69.573 30000 QPSK 1/2 None 225,205 4, 8, 16 64 27333.333 70.243 29999.999 QPSK 1/2 None 208,192 4, 8, 16 64 27559.809 69.667 30000 QPSK 1/2 IESS-309 Off N/A 64 8448 68.267 9011.2 QPSK 1/2 IESS-309 126,112 4, 8, 16 64 8448 76.8 10137.6 QPSK 1/2 IESS-309 194,178 4, 8, 16 64 8448 74.403 9821.196 QPSK 1/2 IESS-309 225,205 4, 8, 16 64 8448 74.927 9890.341 QPSK 1/2 IESS-309 208,192 4, 8, 16 64 8448 74.311 9809.067 QPSK 3/4 None Off N/A 64 45000 42.666 30000 QPSK 3/4 None 126,112 4, 8, 16 64 40000 48 30000 QPSK 3/4 None 219,201 4, 8, 16 64 41301.369 46.487 29999.999 QPSK 3/4 None 194,178 4, 8, 16 64 41288.65 46.502 30000 QPSK 3/4 None 225,205 4, 8, 16 64 41000 46.829 30000 QPSK 3/4 None 208,192 4, 8, 16 64 41339.713 46.444 30000 QPSK 3/4 IESS-309 Off N/A 64 8448 45.511 6007.467 QPSK 3/4 IESS-309 126,112 4, 8, 16 64 8448 51.2 6758.4 QPSK 3/4 IESS-309 219,201 4, 8, 16 64 8448 49.587 6545.449 QPSK 3/4 IESS-309 194,178 4, 8, 16 64 8448 49.602 6547.464 QPSK 3/4 IESS-309 225,205 4, 8, 16 64 8448 49.951 6593.561 QPSK 3/4 IESS-309 208,192 4, 8, 16 64 8448 49.541 6539.378 QPSK 7/8 None Off N/A 64 51840 36.571 29622.857 QPSK 7/8 None 126,112 4, 8, 16 64 46666.666 41.143 30000 QPSK 7/8 None 219,201 4, 8, 16 64 48184.931 39.846 29999.999 QPSK 7/8 None 194,178 4, 8, 16 64 48170.103 38.859 30000 QPSK 7/8 None 225,205 4, 8, 16 64 47833.333 40.139 29999.999 QPSK 7/8 None 208,192 4, 8, 16 64 48229.665 39.81 29999.999 QPSK 7/8 IESS-309 Off N/A 64 8448 39.01 4827.428 QPSK 7/8 IESS-309 126,112 4, 8, 16 64 8448 43.886 5792.914 QPSK 7/8 IESS-309 219,201 4, 8, 16 64 8448 42.503 5610.385 QPSK 7/8 IESS-309 194,178 4, 8, 16 64 8448 42.516 5612.112 QPSK 7/8 IESS-309 225,205 4, 8, 16 64 8448 42.818 5561.624 QPSK 7/8 IESS-309 208,192 4, 8, 16 64 8448 42.463 5604.181 OQPSK 1/ 2 None Off N/A 64 30000 64 30000 OQPSK 1/2 None 126,112 4, 8, 16 64 26666.666 72 29999.999 OQPSK 1/2 None 219,201 4, 8, 16 64 27534.246 69.371 29999.999 OQPSK 1/2 None 194,178 4, 8, 16 64 27525.773 69.573 30000 OQPSK 1/2 None 225,205 4, 8, 16 64 27333.333 70.243 29999.999 OQPSK 1/2 None 208,192 4, 8, 16 64 27559.809 69.667 30000 OQPSK 1/ 2 IESS-309 Off N/A 64 8448 68.267 901.2 OQPSK 1/2 IESS-309 126,112 4, 8, 16 64 8448 76.8 10137.6 OQPSK 1/2 IESS-309 219,201 4, 8, 16 64 8448 74.38 9818.173 OQPSK 1/2 IESS-309 194,178 4, 8, 16 64 8448 74.403 9821.196 OQPSK 1/2 IESS-309 225,205 4, 8, 16 64 8448 74.927 9890.341

Overhead R-S Code

Word

IESS-308 Mode - Extended

R-S Depth Data Rate

(kbps)

Symbol Rate (ksps)

3–6

SLM-5650 Satellite Modem Revision 2 Configuration MN/SLM5650.IOM

Modulation Type Min Max Min Max

OQPSK 1/2 IESS-309 208,192 4, 8, 16 64 8448 74.311 9809.067 OQPSK 3/ 4 None Off N/A 64 20000 42.666 30000 OQPSK 3/4 None 126,112 4, 8, 16 64 40000 48 30000 OQPSK 3/4 None 219,201 4, 8, 16 64 41301.369 46.487 29999.999 OQPSK 3/4 None 194,178 4, 8, 16 64 41288.65 46.502 30000 OQPSK 3/4 None 225,205 4, 8, 16 64 41000 46.829 30000 OQPSK 3/4 None 208,192 4, 8, 16 64 41339.713 46.444 30000 OQPSK 3/ 4 IESS-309 Off N/A 64 8448 45.511 6007.467 OQPSK 3/4 IESS-309 126,112 4, 8, 16 64 8448 51.2 6758.4 OQPSK 3/4 IESS-309 219,201 4, 8, 16 64 8448 49.587 6545.449 OQPSK 3/4 IESS-309 194,178 4, 8, 16 64 8448 49.602 6547.464 OQPSK 3/4 IESS-309 225,205 4, 8, 16 64 8448 49.951 6593.561 OQPSK 3/4 IESS-309 208,192 4, 8, 16 64 8448 49.541 6539.378 OQPSK 7/ 8 None Off N/A 64 20000 36.571 29622.857 OQPSK 7/8 None 126,112 4, 8, 16 64 46666.666 41.143 30000 OQPSK 7/8 None 219,201 4, 8, 16 64 48184.931 39.846 29999.999 OQPSK 7/8 None 194,178 4, 8, 16 64 48170.103 38.859 30000 OQPSK 7/8 None 225,205 4, 8, 16 64 47833.333 40.139 29999.999 OQPSK 7/8 None 208,192 4, 8, 16 64 48229.665 39.81 29999.999 OQPSK 7/ 8 IESS-309 Off N/A 64 8448 39.01 4827.428 OQPSK 7/8 IESS-309 126,112 4, 8, 16 64 8448 43.886 5792.914 OQPSK 7/8 IESS-309 219,201 4, 8, 16 64 8448 42.503 5610.385 OQPSK 7/8 IESS-309 194,178 4, 8, 16 64 8448 42.516 5612.112 OQPSK 7/8 IESS-309 225,205 4, 8, 16 64 8448 42.818 5561.624 OQPSK 7/8 IESS-309 208,192 4, 8, 16 64 8448 42.463 5604.181

Overhead R-S Code

Word

R-S Depth Data Rate

(kbps)

Symbol Rate (ksps)

3–7

SLM-5650 Satellite Modem Revision 2 Configuration MN/SLM5650.IOM

Table 3-5.

Modulation Type Min Max Min Max

BPSK 1/2 None Off N/A 64 15000 128 30000 BPSK 1/2 None 219,201 4, 8, 16 64 13767.123 139.462 29999.999 BPSK 1/2 IESS-309 Off N/A 64 8448 136.533 18022.4 BPSK 1/2 IESS-309 219,201 4, 8, 16 64 8448 148.76 19636.346 BPSK 3/4 None Off N/A 64 22500 85.333 29999.999 BPSK 3/4 None 219,201 4, 8, 16 64 20650.684 92.975 29999.999 BPSK 3/4 IESS-309 Off N/A 64 8448 91.022 12014.933 BPSK 3/4 IESS-309 219,201 4, 8, 16 64 8448 99.173 13090.898 QPSK 1/2 None Off N/A 64 30000 64 30000 QPSK 1/2 None 219,201 4, 8, 16 64 27534.246 69.371 29999.999 QPSK 1/2 IESS-309 Off N/A 64 8448 68.267 9011.2 QPSK 1/2 IESS-309 219,201 4, 8, 16 64 8448 74.38 9818.173 QPSK 3/4 None Off N/A 64 20000 42.666 30000 QPSK 3/4 None 219,201 4, 8, 16 64 41301.369 46.487 29999.999 QPSK 3/4 IESS-309 Off N/A 64 8448 45.511 6007.467 QPSK 3/4 IESS-309 219,201 4,8, 16 64 8448 49.587 6545.449 OQPSK 1/ 2 None Off N/A 64 30000 64 30000 OQPSK 1/2 None 219,201 4, 8, 16 64 27534.246 69.371 29999.999 OQPSK 1/ 2 IESS-309 Off N/A 64 8448 68.267 9011.2 OQPSK 1/2 IESS-309 219,201 4, 8, 16 64 8448 74.38 9818.173 OQPSK 3/ 4 None Off N/A 64 20000 42.666 30000 OQPSK 3/4 None 219,201 4, 8, 16 64 41301.369 46.487 29999.999 OQPSK 3/ 4 IESS-309 Off N/A 64 8448 45.511 6007.467 OQPSK 3/4 IESS-309 219,201 4, 8, 16 64 8448 49.587 6545.449

Overhead R-S Code

IESS-309 Mode – Extended (Closed Network)

Word

R-S Depth Data Rate

(kbps)

Symbol Rate (ksps)

3–8

SLM-5650 Satellite Modem Revision 2 Configuration MN/SLM5650.IOM

Table 3-6.

Modulation Type Overhead R-S Code Word R-S Depth Data Rate

8-PSK 2/3 None 219,201 4, 8, 16 256 139.463 8-PSK 2/3 None 219,201 4, 8, 16 51840 28241.194 8-PSK 2/3 IESS-309 219,201 4, 8, 16 256 148.76 8-PSK 2/3 IESS-309 219,201 4, 8, 16 8448 4909.087 8-PSK 2/3 IESS-308 219,201 4, 8, 16 1544 937.134 8-PSK 2/3 IESS-308 219,201 4, 8, 16 2048 1211.701 8-PSK 2/3 IESS-308 219,201 4, 8, 16 6312 3534.627 8-PSK 2/3 IESS-308 219,201 4, 8, 16 8448 4698.269 8-PSK 2/3 IESS-308 219,201 4, 8, 16 32064 17563.701 8-PSK 2/3 IESS-308 219,201 4, 8, 16 34368 18818.866 8-PSK 2/3 IESS-308 219,201 4, 8, 16 44736 24467.104

IESS-310 Mode – Extended Rates

(kbps)

Symbol Rate

(ksps)

Table 3-7.

Modulation Type Data Rate (kbps) Symbol Rate (ksps) Min Max Min Max

BPSK 21/44 64 14318 134.095 29999.999 BPSK 5/16 64 9375 204.8 30000 QPSK 17/ 18 64 51840 33.882 27444.705 QPSK 21/ 44 64 28636.363 67.047 29999.999 QPSK 3/4 64 45000 42.666 30000 QPSK 7/8 64 51840 36.571 29622.857 OQPSK 17 /18 64 51840 33.882 27444.705 OQPSK 21 /44 64 28636.363 67.047 29999.999 OQPSK 3/ 4 64 45000 42.666 30000 OQPSK 7/ 8 64 51840 36.571 29622.857 8-PSK 17 /18 256 51840 93.353 18296.47 8-PSK 3/ 4 256 51840 113.777 23040 8-PSK 7/ 8 256 51840 97.523 19748.571 16-QAM 3/ 4 256 51840 85.333 17280 16-QAM 7/ 8 256 51840 73.143 14811.428

Turbo Code Mode

3–9

SLM-5650 Satellite Modem Revision 2 Configuration MN/SLM5650.IOM

Table 3-8.

Modulation Type

16-QAM 3/ 4 None None 256 51840 85.333 17280 16-QAM 3/4 219,201 4, 8, 16 256 51840 92.975 18827.462 16-QAM 3/4 208,192 4, 8, 16 256 51840 92.889 18810 16-QAM 7/ 8 None None 256 51840 73.143 14811.428 16-QAM 7/8 219,201 4, 8, 16 256 51840 79.692 16137.825 16-QAM 7/8 208,192 4, 8, 16 256 51840 79.619 16122.857

R-S Code Word

R-S Depth Data Rate ( kbps) Symbol Rate ( ksps)

16-QAM Mode

Note: 16-QAM 3/4 requires Reed-Solomon to be on in order to automatically resolve data ambiguities.

3–10

SLM-5650 Satellite Modem Revision 2 Configuration MN/SLM5650.IOM

3.2 Clocking Options

Clocking of the data from the terrestrial equipment to the satellite (and vice versa) will depend on the application. This section describes the most common options and recommended configurations.

SCT (INTERNAL) clock no longer applies when the modem has loop timing on. The TX clock source is now recovered from the RX satellite data. This recovered clock is put out on the ST line and is used to clock the terrestrial equipment. The transmit terrestrial clock is now essentially the same as the RX satellite clock, except that it has been buffered by the terrestrial equipment.

Select TX TERRESTRIAL for the TX clock source when in loop timing, if the user equipment is being slaved off the modem.

3.2.1 IDR/IBS G.703 Master/Master

Use this application when both earth stations have high stability clocks and the received data is to be clocked to the local network. Refer to Figure 3-1for:

• Clocking block diagram

• Transmit clock options

• Buffer clock options

The disadvantage of the master/master application is that the receive data will slip, as the clocks will not be synchronized. If the buffer is properly set up, the slips will be an exact frame length, causing minimum loss of data. By using very high stability clocks, the expected time between slips can be several days.

Loss of the buffer clock will mean the buffer will not be emptied and data will not be available. The buffer clock will normally revert to the low stability internal reference automatically.

3.2.2 IDR/IBS G.703 Master/Slave

Use this application when the far end earth station does not have local access to a high stability reference clock, or when it is not required to synchronize with a local clock. Refer to Figure 3-2 for:

• Clocking block diagram

• Transmit clock options

• Buffer clock options for using external loop timing

Modem loop timing does not apply for G.703 operation. The terrestrial equipment must select loop timing to recover the clock off the receive data and use that recovered clock for the transmit data.

The disadvantage of the master/slave application is that the signal received at the slave station is subject to Doppler shift. The length of the buffer at the master end will need to be twice the length that is normally required, compensating for the Doppler shift on the outward and return paths.

3–11

SLM-5650 Satellite Modem Revision 2 Configuration MN/SLM5650.IOM

DTS

TXCLOCK + TX TERRESTRIAL

RECOVERY

OSCILLATOR

TRANSMIT

RECEIVE

BUFFER CLOCK = TX TERRESTRIAL MASTER

BUFFERCLOCK = TX TERRESTRIAL

CLOCK

HIGH

STABILITY

TERRESTRIAL

DATA

CLOCK

DATA

CLOCK

BUFFER

DATA

CLOCK

INTERNAL

OSCILLATOR

SATELLITE

CLOCK

RECOVERY

CLOCK

RECOVERY

SATELLITE

RECEIVE TRANSMIT

INTERNAL

OSCILLATOR

TX CLOCK = TX TERRESTRIAL MASTER

BUFFER

TX TERRESTRIAL

HIGH

STABILITY

OSCILLATOR

CLOCK

RECOVERY

DTS

Figure 3-1. IDR/IBS G.703 Master/Master Clocking Diagram

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SLM-5650 Satellite Modem Revision 2 Configuration MN/SLM5650.IOM

DTS

BUFFER CLOCK = RX (SATELLITE CLOCK)

CLOCK

RECOVERY

SATELLITE

TXCLOCK + TX TERRESTRIAL

RECOVERY

STABILITY

OSCILLATOR

TRANSMIT

RECEIVE

BUFFER CLOCK = TX TERRESTRIAL

MASTER

BUFFER

CLOCK

HIGH

DATA

CLOCK

DATA

CLOCK

TERRESTRIAL

TX TERRESTRIAL

BUFFER

DATA

CLOCK

INTERNAL

OSCILLATOR

SATELLITE

CLOCK

RECOVERY

TX TERRESTRIAL

RECEIVE

TRANSMIT

INTERNAL

OSCILLATOR

TX CLOCK = TX TERRESTRIAL

SLAVE

HIGH

STABILITY

OSCILLATOR

CLOCK

RECOVERY

DTS

NOTE: TERRESTRIAL EQUIPMENT MUST RECOVER THE CLOCK FROM RECEIVED DATA.

Figure 3-2. IDR/IBS G.703 Master/Slave Clocking Diagram

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SLM-5650 Satellite Modem Revision 2 Configuration MN/SLM5650.IOM

3.3 Buffering

The purpose of a receive buffer is two reasons:

• Plesiochronous buffering of two dissimilar clock frequencies (normally the far end transmit clock verses the local network clock). The clocks may be very close in frequency to each other and will normally slip at a constant rate. Figure 3-3 shows plesiochronous operation for dissimilar clocks. If incoming traffic is too fast, an occasional bit will be lost. If incoming traffic is too slow, an occasional bit will be repeated.

• Doppler buffer of the signal of the satellite. The Doppler shift results from the “figure 8” (Figure 3-4) station keeping movement performed by the satellite in space over a period of one day. Doppler shift should not result in a clock slip, as the buffer will constantly fill and empty.

If the two earth stations are configured as master/slave, then the buffer need only be configured for Doppler operation. The buffer will then have sufficient capacity for the Doppler shift on the outward and return paths.

A buffer set up for Doppler operation only, will typically require less depth than one intended for both Doppler and plesiochronous operation.

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SLM-5650 Satellite Modem Revision 2

PLESIOCHRONOUSOPERATION

Configuration MN/SLM5650.IOM

IS NOT EXACTLY EQ UAL TO f

1) INCO MIN G TRAFFI C TOO F AST

BIT 1 BIT 2 BIT 3 BIT 4 BIT 5 BIT 6 BIT 7

BIT 1

ERROR

BIT 2

BIT 3

BIT 5

BIT 6 BIT 7

2) INCOMING TRAFFIC TOO SLOW

BIT 1

BIT 2

BIT 3

BIT 4

BIT 5

BIT 6

BIT 1 BIT 2 BIT 3 BIT 3 BIT 4 BIT 5 BIT 6

ERROR

INTERF

Figure 3-3. Clock Slip

INTERF

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SLM-5650 Satellite Modem Revision 2

SATELLITEMOTIONANDORBITALINCLINATIO

Configuration MN/SLM5650.IOM

GEO-SYNCHRONOUS INCLINED ORBIT

GEO-SYNCHRONOUS EQUATORIALORBIT

SATELLITE

N/S

MOTION

SATELLITE NOMINAL POSITION

A SATELLITE IS MAINTAINEDAT AN ASSIGNED GEOST ATIONARY LOCATION THROUGH THE USE OF GROUND COMMAND ADJUSTMENTS TO ITS N/S AND E/W LOCATION. THIS PROCESS, KNOWN AS SATE LLITE STATION-KEEPING,IS USED TO KEEP THE SATELLITE DRIFT WITHIN CERTAIN BOUNDARIES.

AS STATION-KEEPING FUEL BECOMES EXHAUSTED, THE N/S STATION-KEEPING IS LIMITED TO PRODUCE A MORE INCLINED ORBIT, THUS PROLONGING THE LIFE OF THE SATELLITE.

THE N/S MOTION CHANGESTHE PA THFROM THE SATELLITE TO THE EARTH, RESUL T INGIN FREQUENCY CHANGES KNOWN AS THE DOPPLER EFFECT.

Figure 3-4. Doppler Shift

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3.3.1 Buffer Size

The depth of the receive buffer will depend on four parameters:

• Doppler shift caused by satellite

• Stability of each clock (plesiochronous/Doppler operation)

• Frame/Multiframe length of multiplexed data format

• Allowable time between clock slips

3.4 Doppler

A geostationary satellite should be positioned directly over the equator and orbit with duration of 24 hours. In practice, the exact inclination of the satellite (relative to the equator) is influenced by the earth, moon, and sun’s gravity, as well as solar wind. Station keeping motors are required to maintain the orbital position.

When viewed from the earth, the satellite appears to prescribe and ellipse in space, degrading to a “figure 8” as the angle of inclination increases.

The orbit of the satellite can result in a peak-to-peak altitude variation of ± 2% (85 km), while the station keeping of a newly launched satellite will typically be ± 0.1° (150 km). The total effect will be 172 km relative to the nominal 42,164 km radius.

Depending upon the location of the earth station relative to the satellite, the variation in propagation delay will typically be 1.15 ms (up to satellite and back down), therefore a buffer depth of 2 ms is sufficient to cope with most commercial satellites.

Since station keeping involves using fuel in the motors, the “lifetime” of the satellite can be extended by allowing the satellite to drift into a wider “figure 8” and using the motor less often.

The older satellites will be found in a more inclined orbit with the station keeping varying in latitude by as much as ± 4°. The total effect of the inclined orbit may result in a typical variation in path delay of 35 ms.

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SLM-5650 Satellite Modem Revision 2 Configuration MN/SLM5650.IOM

3.5 Plesiochronous

The stability of station reference clocks is normally 1 x 10

-12

(derived from a cesium standard). While the stability is exceptionally high, the two clocks are not in synchronization with each other and will eventually pass by each other.

The clock used for the transmit signal is passed over the satellite, but will not be used at the receive earth station where a national network derives its time locally. A buffer will fill up with data using the clock from the satellite and will empty using the local clock. The object of the buffer is to ensure that the buffer overflows or underflows at regular, determinable intervals (typically every 40 days).

The buffer depth required (from center to end) would be:

• Minimum slip period (seconds) * [stability of far end (transmit) clock + stability of local clock]

For example:

Far end (transmit) clock stability Local (buffer) clock Minimum clock slip 40 days

Buffer Depth = (40 x 24 x 60 x 60) x (1 x 10-9 + 1 x 10

1 x 10-9

-11

1 x 10

-11

) = 3.49 ms

Because the buffer will either fill or empty (depending on the frequency relationship of the two clocks), the total buffer depth will be 2 x 3.49 ms = 6.98 ms.

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SLM-5650 Satellite Modem Revision 2 Configuration MN/SLM5650.IOM

3.6 Frame/Multiframe Length

The depth of the receive buffer required is applicable to all unframed data.

When the data is framed (such as 2048 kbps G732 or 1544 kbps G733), it is desirable to provide slips in predefined locations. The advantage of organized slip locations (in relation to the frame) is that multiplexing equipment does not lose sync and outages on any channel are kept to a minimum.

A 2048 kbps frame structure commonly used is G732. This has a frame length of 256 bits with 16 frames per multiframe (4096 bits total, or 2 ms).

3.6.1 Multiples of the Frame Length

If this setting is set to NONE, the user can choose any buffer depth.

3.6.2 T otal Buffer Length

T1 and E1 framing structure under G.704 are available. When this is selected, the buffer length is restricted to the size of the buffer. Using the examples from the three previous sections, the total buffer depth (end to end) will be:

Doppler + Plesiochronous (rounded up to the nearest multiframe)

1.15 ms + 6.98 ms = 8.13 ms

If the frame length is 2 ms, then the nearest multiframe will be 10 ms, or 20,480 bits.

3.6.3 Converting Between Bits and Seconds

Bits to Seconds

Seconds to Bits

1/Data Rate x Bits = Seconds.

Data Rate x Seconds = Bit.

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Notes:

3–20

This chapter describes the front panel operation of the modem, including the menus and their explanations, and clocking information. For information about remote control operation, refer to Appendix B.

4.1 Front Panel

The modem front panel (Figure 4-1) enables the user to control modem configuration parameters and display the modem status.

Chapter 4. FRONT PANEL

OPERATION

Figure 4-1. Modem Front Panel

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SLM-5650 Satellite Modem Revision 2 Front Panel Operation MN/SLM5650.IOM

The front panel features include:

• 40-character, 2-line LCD display

• 6-button keypad for local control

• 12-button array for manual data entry

• 8 LEDs to provide overall status at a glance

• On/Off Power switch

• USB Port

All functions are accessible at the front panel by entering one of six predefined Function Select categories or levels:

• Configuration

• Monitor

• Test

• Save/Load

• Utility

4.1.1 LED Indicators

The eight LEDs on the front panel indicate:

• General modem summary fault information

• Status

• Alarms

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SLM-5650 Satellite Modem Revision 2 Front Panel Operation MN/SLM5650.IOM

The indicators are defined as follows:

LED Color Condition

Status

Green No Unit Faults or Stored Faults

Unit Status

Tx Status

Rx Status

Tx On

IF Lock

Data Lock

Remote

Test Mode

Red A Unit Fault exists Blinking There are Stored Faults. Green No Tx Traffic Faults or Alarms exists Orange A Tx Traffic Alarm exists

Red A Traffic Fault exists Green No Rx Traffic Faults or Alarms exists

Orange A Rx Traffic Alarm exists Red A Rx Fault exists

Green Off Transmitter is currently OFF.

Green Demod has constellation lock. Off No constellation lock.

Green Decoder is locked. Off Decoder is not locked. Green The Unit is in Remote Communication Mode.

Off Orange A Test Mode is selected (Example: IF Loopback)

Off No test mode is selected.

Transmitter is currently on. This indicator reflects the actual condition of the transmitter, as opposed to the programmed condition.

Alarms

The Unit is in Local Mode – remote monitoring is possible, but no remote control

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SLM-5650 Satellite Modem Revision 2 Front Panel Operation MN/SLM5650.IOM

4.1.2 Front Panel Keypad

The front panel keypad controls the local operation of the modem. The keypad consists of 18 keys. Each key provides one or more logical functions.

[ENTER] [CLEAR]

g and h i and j

Numbers

+/-

This key is used to select a displayed function, or to execute a modem configuration change. This key is used to back out of a selection, or to cancel a configuration change, which has not been executed using [ENTER]. Pressing [CLEAR] generally returns the display to the previous selection. These keys are used to move to the next selection, or to move the cursor for certain functions. These keys are used primarily to change configuration data (numbers), but are also used at times to move from one section to another. These buttons are used to enter a numerical value manually. The +/- buttons allows the user to change signs.

The keypad has an auto-repeat feature. If a key is held down for more than 3 second, the key action will repeat, automatically, at the rate of 7

IMPORTANT

keystrokes per second.

Figure 4-2. Keypad

The modem responds by beeping whenever a key is pressed:

• A single-beep indicates a valid entry and the appropriate action was taken.

• A double-beep indicates an invalid entry or a parameter is not available for

operation.

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SLM-5650 Satellite Modem Revision 2 Front Panel Operation MN/SLM5650.IOM

4.1.3 Menu Matrix

Select:

Configuration 4.3.1)

Monitor (4.3.2)

Test (4.3.3)

Save/Load (4.3.4)

Utility 4.3.4)

Transmit (4.3.1.1) Mod, DataRate, Overhead, Frequency

Receive (4.3.1.2 Demod, DataRate, Overhead, Mod (4.3.1.3) Mode, FreqBand, Interface

AUPC (4.3.1.4) Local, Enable, Power Settings

Ref (4.3.1.5) Internal, Ext-1 MHz, Ext-5 MHz,

Mask (4.3.1.6) TxData, RxData, Eb/No, Threshold Reset (4.3.1.7) Remote (4.3.1.8) Local, Remote

Alarms (4.3.2.1) Event-Log (4.3.2.2) View, Clear-All Rx-Params (4.3.2.3) Statistics (4.3.2.4) View, Clear-All, Configuration Gigabit IF Statistics

(4.3.2.5)

Save Load

RT-CLK RefAdjust ID Display Cal Agc AudibleAlarm Firmware (4.3.4.1) Information, Select FAST (4.3.4.2)

Note: Paragraph numbers are in parenthesizes.

Power, Clocking,Misc Frequency, Acquisition, Buffer,Misc

Target Settings, Carrier Loss Action

Ext-10 Mhz

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SLM-5650 Satellite Modem Revision 2 Front Panel Operation MN/SLM5650.IOM

4.2 Opening Screen

This screen is displayed when power switch is in the On position:

Comtech SLM-5650 Modem Status: GO Firmware Version x.x.x Mode: TURBO

The bottom line displays the internal software version and the selected mode of operation. Press [ENT] to go to the Main Menu screen.

IMPORTANT

4.3 Main Menu

SELECT: Configure Monitor Test Save/Load Util

The following selections are available:

Configure

Go to CONFIG: MODE and set the MODEM type, the FREQBAND, and the INTERFACE type prior to preceding with the rest of the modem configuration.

Permits the user to fully configure the modem.

Monitor

Test

Save/Load

Util

Permits the user to monitor the alarm status of the unit, to view the log of stored events, and to display the Receive Parameters screen and clear all stored faults.

Permits the user to configure the modem into one of several Test modes.

Permits the user to save and retrieve up to 10 different modem configurations.

Permits the user to perform miscellaneous functions, such as setting the Real-Time Clock, adjusting the display brightness, etc.

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SLM-5650 Satellite Modem Revision 2 Front Panel Operation MN/SLM5650.IOM

4.3.1 Select: Config

CONFIG: Transmit Receive Mode AUPC Ref Mask Reset Remote (efE)

The following choices are presented:

Transmit

Receive

Mode

AUPC

Ref

Mask

Reset

Remote

Permits the user to configure the Tx parameters.

Permits the user to configure the Rx parameters.

Permits the user to configure the modem operating modes.

Permits the user to configure the AUPC parameters. This menu only appears if the modem type has been set to AUPC.

Permits the user to configure the modem reference.

Permits the user to mask selected alarms.

Permits the user to reset the modem to a default status.

Permits the user to define whether the unit is being controlled locally or remotely as well as the communication parameters. (See Note.)

IMPORTANT

The modem may be monitored over the remote control interface at any time. When in Local mode, however, configuration parameters may only be changed through the front panel.

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SLM-5650 Satellite Modem Revision 2 Front Panel Operation MN/SLM5650.IOM

4.3.1.1 Select: CONFIG: Transmit

Tx: Mod DataRate Overhead Frequency Power Clocking Misc (efE)

Mod DataRate

Overhead

Frequency Power Clocking Misc

Permits the user to select: FEC, Type, Rate, RS, Diff, and Scrambler. Permits the user to enter a selected data rate and view the symbol rate.

(See Chapter 3.) Permits the user to select the overhead type, view the overhead rate, select the

Reed Solomon Code Word, and depth. Permits the user to select the desired frequency and spectral inversion. Permits the user to select desired output power level and state of the output. Permits the user to select the transmit clock source and SCT reference. Permits the user to select CLK/DataPhase and BPSK Bit Ordering.

Select: CONFIG: Transmit: Mod

Mod: FEC:VIT Type:QPSK Rate:1/2 RS:Off Diff:On Scram:OM-73 (efE)

Select the Mod type using the ef arrow keys to scroll through all the choices, as follows. The user should then press [E].

FEC (Viterbi or None are standard), (TURBO optional) Viterbi is a K=7

convolutional encoder. None means Uncoded. Turbo means Turbo Product Code, which is a block code. Trellis operation is supported in IESS-310 mode and MIL-STD-188-165A mode, which for the encoder is just a specific mapping of the constellation. Trellis is not a displayed choice.

Type (Modulation)

Rate

RS Diff Scram:

V.35 M-V.35 IBS Turbo OM73 Synch

(BPSK, QPSK, OQPSK standard), (8PSK, or 16QAM optional) BPSK stands

for Bi Phase Shift Keying. QPSK stands for Quadrature Phase Shift Keying. OQPSK stands for Offset Quadrature Phase Shift Keying. 8PSK stands for 8 Phase Shift Keying. 16QAM stands for 16 Quadrature Amplitude Modulation.

Viterbi: 1/2, 2/3, 3/4, 5/6, or 7/8 Uncoded: 1/1 Turbo: 5/16, 21/44, 3/4, 7/8, or 17/18 On or Off (Reed Solomon Encoder) On or Off (Differential Encoder) V.35, M-V.35, IBS, TURBO, OM73, Synch, or Off

(Scrambling is for energy dispersal) ITU standard

EF Data Closed Network with Reed Solomon compatible (modified V.35) Used for IESS-309 and AUPC operation Synchronous scrambler synchronized to the Turbo block Linkabit OM-73 modem compatibility mode Synchronous scrambler synchronized to the Reed-Solomon.

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SLM-5650 Satellite Modem Revision 2 Front Panel Operation MN/SLM5650.IOM

When changing Modulation type the data rate must be set to a rate supported by the modulation type or the change to the modulation type

IMPORTANT

will not be allowed. Some choices will only be visible if the modem is set to a compatible mode or if an option is installed or enabled.

Select: CONFIG: Transmit: DataRate

Tx Data Rate: 020000.000 kbps Sym Rate: 0266666.666 ksps (efbcE)

The user can enter the desired data rate in kilobits using step 1 or step 2 as follows:

1. Use the number keypad and enter the desired data rate (See Chapter 3).

2. Use the rate. When scrolling data rate, the symbol rate will automatically be recalculated and displayed.

IMPORTANT

efbc arrow keys to scroll up and down to select the desired data

When entering the data rate, the following interactions need to be taken into account. If the modulation type selected is 8-PSK or 16-QAM the minimum data rate allowed is 256 kbps. When changing certain parameters like modem type, the data rate will default to 64 kbps or 256 kbps. The calculated symbol rate is displayed for the user. This is helpful for determining the occupied bandwidth required for the selected modulation type, code rate and overhead.

Select: CONFIG: Transmit: Overhead

Tx: Overhead:None Rate: N/A RS-CW:N/A Depth:N/A (efE)

Select the desired Overhead, Rate, RS-CW, and Depth and then press [E].

Overhead Rate RS-CW

Depth

IMPORTANT

(IESS-308, IESS-309 are standard), (AUPC is optional) 96 kbps (IESS-308), 1/15 (IESS-309 or AUPC), N/A (None) 126/112, 194/178, 208/192, 219/201, 220/200, 225/205,

(Reed Solomon Code Word, N/K) 4, 8 or 16 (Interleaving depth)

Some selections will only be visible if the modem is set to a compatible mode or if an option is installed or enabled.

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SLM-5650 Satellite Modem Revision 2 Front Panel Operation MN/SLM5650.IOM

Select: CONFIG: Transmit: Frequency

Tx Frequency: 1955.0000 MHz Spectrum: Normal (efbcE)

Edit the Tx Frequency, using either step 1 or 2:

1. Key in the desired frequency using the numbered keypad.

2. Select the digit to be edited, using the

then changed using the arrow keys. The user should then press [E]

7/140 MHz L-Band Spectrum Normal or Invert, (used to counteract frequency converters that invert the

52-88, 104-176 MHz (in 100 Hz steps) 950-2000 MHz (in 100 Hz steps)

spectrum)

When entering an IF frequency, the M&C will check the occupied bandwidth calculated from the data rate, modulation type, code rate and overhead and will not allow an IF frequency to be entered if the

IMPORTANT

occupied bandwidth falls outside of the minimum or maximum IF frequencies.

arrow keys. The value of the digit is

Select: CONFIG: Transmit: Power

Tx Power: State:On Level:-20.0 Control: Normal (efbcE)

State Level

Control Permits the user to select Normal or RTS. RTS is an interface signaling

Permits the user to select On or Off. Permits the user to edit the Power Level from –40 dBm to +10 dBm in 0.1 dB

steps by either:

1. Key in the desired number using the keypad.

2. Select the digit to be edited using the the digit is then changed using the

3. The user should then press [E].

control. It stands for Request to Send. If enabled RTS can be used to control the output state of the modulator. Only available when using either the EIA-530 or HSSI interface.

ef arrow keys. The value of

bcarrow keys.

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SLM-5650 Satellite Modem Revision 2 Front Panel Operation MN/SLM5650.IOM

Select: CONFIG: Transmit: Clocking

Tx Clocking: CLK Source: SCT (efE) SCT Ref: Reference

Select Clk Source or SCT Ref, then press [E].

Clk Source SCT or Tx-Terr SCT stands for Send Clock Timing or also is referred to as

internal and is provided as an output to provide a clock reference for the user. Tx-Terr stands for the transmit clock input on the selected data interface.

SCT Ref Reference, DataSrcSync, or Looptiming If reference is selected SCT will be

generated from the modem’s 10 MHz reference (this could be derived from and external reference if selected. DataSRCSync stands for Data Source Synchronization. This is an operational mode where no clock is provided on the interface and a clock is generated such that it is phase locked to the incoming data stream. Looptiming is when the clock generated from the received carrier is used as a reference for generating SCT.

Select: CONFIG: Transmit: Misc

Tx Misc: Clk/DataPhase BitOrdering (efE)

Select Clk/DataPhase or BitOrdering, then press [E].

ClkPhase DataPhase

BitOrdering Tx Bit Ordering (for BPSK compatibility), Standard or Non-Standard

Tx Clock Phase, Normal or Inverted Tx Data Phase, Normal or Inverted

4.3.1.2 Select: CONFIG: Receive

Rx: Demod DataRate Overhead Frequency Acquisition Buffer Misc (efE)

Demod DataRate Overhead

Frequency Acquisition Buffer

Misc

Permits the user to select FEC, Type, Rate, RS, Diff, and Descrambler. Permits the user to enter a selected data rate. (See Chapter 3.) Permits the user to select the overhead type, view the overhead rate, select the

Reed Solomon Code Word, and depth. Permits the user to select desired frequency and spectral inversion. Permits the user to select acquisition range and reacquisition time period. Permits the user to select buffer reference clock source, recenter, the buffer

size, Bit mode or millisecond mode and external Framing for Plesiochronous operation.

Permits the user to select Clk and Data Phase, BPSK Bit Ordering, and Eb/No Threshold.

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SLM-5650 Satellite Modem Revision 2 Front Panel Operation MN/SLM5650.IOM

Note: Framing is applicable only when using externally framed data, with the following formats:

 T1 or E1 G.704  T2 G.743, G.704, G.707  E2 G.742, G.704, G.745

Select: CONFIG: Receive: Demod

Demod: FEC:VIT Type:BPSK Rate:3/4

Select the Demod, Type, RS, Diff, and Descram. Use the ef arrow keys to scroll through all the choices. The user should then press [E].

RS:N/A Diff:On Descram:OM-73 (efE)

FEC (Viterbi or None are standard), (TURBO optional) Viterbi is a K=7

convolutional decoder. None means Uncoded. Turbo means Turbo Product Code, which is a block code. Trellis operation is supported in IESS-310 or MILSTD-188-165A mode which a different front end is applied the Viterbi decoder. Trellis is not a displayed choice.

Type (Modulation)

Rate

RS Diff Descram:

V.35 M-V.35 IBS Turbo OM73 Synch

IMPORTANT

(BPSK, QPSK, OQPSK standard), (8PSK, or 16QAM optional) BPSK stands

for Bi Phase Shift Keying. QPSK stands for Quadrature Phase Shift Keying. OQPSK stands for Offset Quadrature Phase Shift Keying. 8-PSK stands for 8 Phase Shift Keying. 16-QAM stands for 16 Quadrature Amplitude Modulation.

Viterbi: 1/2, 2/3, 3/4, 5/6, or 7/8 Uncoded: 1/1 Turbo: 5/16, 21/44, 3/4, 7/8, or 17/18 On or Off (Reed Solomon Decoder) On or Off (Differential Decoder) V.35, M-V.35, IBS, TURBO, OM73, Synch, or Off (Descrambling) ITU standard EF Data Closed Network with Reed Solomon compatible (modified V.35) Used for IESS-309 operation Synchronous descrambler synchronized to the Turbo block OM-73 Linkabit modem compatibility mode Synchronous descrambler synchronized to the Reed-Solomon frame.

When changing Modulation type the data rate must be set to a rate supported by the modulation type or the change to the modulation type will not be allowed. Some choices will only be visible if the modem is set to a compatible mode or if an option is installed or enabled.

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SLM-5650 Satellite Modem Revision 2 Front Panel Operation MN/SLM5650.IOM

Select: CONFIG: Receive: DataRate

Rx Data Rate: 020000.000 kbps Sym Rate: 0266666.666 ksps (efbcE)

The user can enter the desired data rate using step 1 or step 2 as follows:

1. Use the number keypad and enter the desired data rate (see Chapter 3).

2. Use the rate or symbol rate. When scrolling data rate the symbol rate will be automatically recalculated and displayed.

IMPORTANT

kbps. The calculated symbol rate is displayed for the user. This is helpful for determining the occupied bandwidth required for the selected modulation type, code rate and overhead.

efbc arrow keys to scroll up and down to select the desired data

Select: CONFIG: Receive: Overhead

Rx: Overhead:None Rate: N/A RS-CW:N/A Depth:N/A (efE)

Select the desired Overhead, Rate, RS-CW, and Depth and then press [E].

Overhead Rate RS-CW

Depth

IMPORTANT

(IESS-308, IESS-309 are standard), (AUPC is optional) 96 kbps (IESS-308), 1/15 (IESS-309 or AUPC), N/A (none) 126/112, 194/178, 208/192, 219/201, 220/200, 225/205

(Reed Solomon Code Rate, N/K) 4, 8 or 16 (Deinterleaving depth)

Some selections will only be visible if the modem is set to a compatible mode or if an option is installed or enabled.

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SLM-5650 Satellite Modem Revision 2 Front Panel Operation MN/SLM5650.IOM

Select: CONFIG: Receive: Frequency

Rx Frequency: 1955.0000 MHz Spectrum: Normal (efE)

Edit the Rx Frequency, using either step 1 or 2:

1. Key in the desired frequency using the numbered keypad.

2. Select the digit to be edited, using the

arrow keys. The value of the digit is

then changed using the arrow keys. The user should then press [E]

7/140 MHz L-Band Spectrum Normal or Invert, (used to counteract frequency converters that invert the

52-88, 104-176 MHz (in 100 Hz steps) 950-2000 MHz (in 100 Hz steps)

spectrum)

When entering an IF frequency, the M&C will check the occupied bandwidth calculated from the data rate, modulation type, code rate and overhead, and will not allow an IF frequency to be entered if the

IMPORTANT

occupied bandwidth falls outside of the minimum or maximum IF frequencies.

Select: CONFIG: Receive: Acquisition

Acquisition: Range: 0001.000 KHz Reacq: 000 Seconds (efbcE)

Edit the value as described in step 1 or 2 as follows:

1. Key in the desired frequency range using the numbered keypad.

2. Select the digit to be edited, using the then changed using the

 arrow keys. The user should then press [ENTER].

Range Reacq

0 to 60 kHz in 1 Hz steps, Demodulator Acquisition range 0 to 999 seconds, Hold off time before the demodulator reverts to normal

acquisition. During the holdoff the demodulator will stay centered on the last known frequency position of the carrier for faster reacquisition.

 arrow keys. The value of the digit is

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Select: CONFIG: Receive: Buffer

Buffer: Src:RX-Sat Center: Y/N Size:00001024 Mode:Bits Framing (efE)

Src

Center

Size

Mode Framing:

Rx-Sat, Int, or Tx-Terr. Rx-Sat is the recovered clock from the received carrier. Int is a clock synthesized from the modems reference (internal or external). Tx-Terr is the transmit clock supplied by the user.

Yes or No, the buffer is automatically centered when the demodulator locks. By selecting center, the buffer can be manually centered.

If in Bits, the minimum size is 128 to a maximum of 4,194,304 in 16 bit steps.

If in milliseconds (mSec), the minimum size is 2 to a maximum of 60 in 1 mSec steps.

Bits or mSec, buffer size format. If selected this allows the buffer to operate in a plesiochronous mode

when running externally framed data.

If buffer mode is set to mSec and Rx data rate is 1544 kbps (T1), 2048 (E1), 6312 kbps (T2), or 8448 kbps (E2) then the selected framing card will be used to calculate the required buffer size so that the buffer will slip properly.

G704 or None

G704, G743, G747, or None

G704, G742, G745, or None

While the framing selections show up in the menus regardless of which interface is plugged in, they will only have effect if a

IMPORTANT

G.703 interface is plugged into the modem.

Select: CONFIG: Receive: Misc

Rx Misc: Clk/DataPhase BitOrdering Eb/No Threshold (efE)

Select Clk/DataPhase, BitOrdering or Eb/No Threshold, then press [E].

ClkPhase DataPhase

BitOrdering Eb/No Threshold

Rx Clock Phase, Normal or Inverted Rx Data Phase, Normal or Inverted Rx Bit Ordering (for BPSK compatibility), Standard or Non-Standard

0.1 to 20 dB in 0.1 dB steps, this sets an Eb/No threshold such that when the received carrier Eb/No is less than the set value, the Rx threshold alarm is set.

4.3.1.3 Select: CONFIG: Mode

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Mode: Modem:TURBO FreqBand:L-Band Interface:EIA-530 (efE)

Select Modem Type, FreqBand or Interface, then press [E].

Modem:

OM-73 MIL-165A IESS-308

IESS-309

IESS-310

TURBO

16-QAM AUPC

Frequency Band

Interface

When selecting an IF frequency band both transmit and receive operate in the selected band. Operation of transmit in one IF frequency band and the receive in the other IF frequency band is not permitted. When selecting a data interface type, a native interface can be selected even if an optional interface is installed, but an optional interface can only be

IMPORTANT

selected if it is installed. Both transmit and receive must use the selected interface type. Transmitting using one interface type and receiving using another interface type is not permitted.

This selects Linkabit OM-73 modem compatibility mode. This selects functionality defined by MIL-STD-188-165A. This selects functionality defined by IESS-308, the Intelsat Intermediate

Data Rate standard. This selects functionality defined by IESS-309, the Intelsat Business

Services standard. This selects functionality defined by IESS-310, the Intelsat 8-PSK

Intermediate Data Rate standard. This selects functionality defined by IESS-315 plus Comtech EF Data

Turbo mode interoperability. This mode allows 16-QAM to be selected as a modulation type. This mode allows Automatic Uplink Power Control to be used.

Permits the user to select: 70/140 MHz, (52 – 88 MHz, 104 – 176 MHz) L-Band, (950 – 2000 MHz)

Permits the user to select: EIA-530, (native interface, standard equipment) HSSI, (native interface, standard equipment) GigaBit Ethernet, (optional data interface)

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4.3.1.4 Select: Configuration: AUPC: Local

Local AUPC: Enable: Off Power Settings Target Setting Carrier Loss Action (efE)

Select either Enable, Power Settings, Target Settings, or Power Loss Action, then press (E).

Enable Power Settings

Target Settings

Carrier Loss Action

On or Off: Allows the user to enable AUPC on the local modem. Nominal Output Power: (-40 to +10 dB) Min Output Power: (-40 to +10 dB) Max Output Power: (-40 to +10 dB) Eb/No: allows the user to set the Target Eb/No for AUPC (Range: 3.2 to 16.0 dB) Rate of Change: allows the user to set the maximum tracking rate

(Range: 0.5 to 6.0 dB per minute in 0.5 dB increments) Local allows the user to set the action of the local modem when the

remote modem loses carrier detect (Hold, Nominal, Maximum).

Select: Configuration: AUPC: Remote

Remote AUPC: Enable: Off BasebandL: Off Tx Pattern: Off BER: Loss (efE)

Select either Enable, BasebandL, or Tx Pattern, then press (E).

Enable

BasebandL

Tx Pattern

BER

Allows the user to view or modify the status of the remote modem’s AUPC Enable (On, Off).

Allows the user to view or modify the status of the remote modem’s I/O Loopback #1 setting (On, Off).

Allows the user to view or modify the status of the remote modem’s Tx pattern substitution (On, Off). In order to maintain compatibility with older Comtech EF Data modems, only 2047 pattern substitution is supported.

Allows the user to monitor BER of the remote modem. The remote modem shall have Tx Pattern set to On and the local modem shall be transmitting a 2047 pattern.

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4.3.1.5 Select: CONFIG: Ref

Reference: Internal Ext-1Mhz Ext-5Mhz Ext-10Mhz (efE)

Select Internal, Ext-1Mhz, Ext-5Mhz or Ext-1Mhz, then press [E].

Internal

Ext-1MHz

Ext-5MHz

Ext-10MHz

Permits the user to select :

Internal high stability ovenized 10 MHz oscillator

Permits the user to select: An external 1 MHz reference, (accepts sine wave or square wave and

locks the internal reference to the 1 MHz)

Permits the user to select: An external 5 MHz reference, (accepts sine wave or squarewave and

locks the internal reference to the 5 MHz)

Permits the user to select:

An external 10 MHz reference, (accepts sinewave or squarewave and

locks the internal reference to the 10 MHz)

4.3.1.6 Select: CONFIG: Mask

Mask: TxData RxData Eb/No Threshold (efE)

TxData

RxData

Eb/No Threshold

When selecting masked for a given alarm, if the condition occurs the alarm will not be set. Activity or active means the alarm is enabled. AIS stands for alarm indication signaling. This will put out all ones

IMPORTANT

allowing the connected equipment to recognize that there is an alarm condition.

Permits the user to select : Masked, Activity, or AIS,

(this alarm monitors data activity on the transmit data

interface).

Permits the user to select : Masked, Activity, or AIS,

(this alarm monitors the received data activity).

Permits the user to select : Masked or Active, (this alarm

monitors the receive Eb/No of the demodulator and

compares it to the Eb/No threshold value).

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4.3.1.7 Select: CONFIG: Reset

Are you sure that you want to default the

odem configuration? No Yes (efE)

When selecting RESET all parameters in the modem get reset to the default settings. This includes the real time clock and the stored

IMPORTANT

configurations.

4.3.1.8 Select: CONFIG: Remote

Remote Control: Local Remote (efE)

Local Permits the user to select Local, which will limit the remote control to only be

able to monitor the status of the modem.

Remote Permits the user to select Remote, which will enable remote control. Further

selections under remote include, Serial or Ethernet.

Select: CONFIG: Remote: Remote

Remote Control: Serial Ethernet (efE)

Select Serial or Ethernet by using efarrow keys, then press [E].

Serial Permits the user to select the interface type either RS-232, RS-485 2 wire or

RS-485 4 wire and the baud rate.

Ethernet Permits the user to select Ethernet.

Select: CONFIG: Remote: Remote: Serial

If Serial was selected:

Remote Control: Interface Baudrate (efE)

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Select: CONFIG: Remote: Remote: Serial: Interface

If Interface was selected:

M&C Bus Interface: RS232 RS485-2W RS485-4W TTL (Switching) (efE)

Select RS232, RS485-2W (2-wire), or RS485-4W (4-wire), or TTL (Switching) using the arrow keys, then press [E]. The TTL (Switch) selection enables interoperation with the CRS-311 (1:1) or CRS-300 (1:N) switch.

Local M&C Bus Address: 0000

When selecting RS-232 the local M&C bus address displays, 0000. Addressing is not supported by RS-232 or TTL (Switch)because they are not a multi drop communication standards. If RS-485 is selected,

IMPORTANT

the display will show address 0001. This address can be changed using the front panel. The most significant digit is for Comtech EF Data redundancy switches.

Select: CONFIG: Remote: Remote: Serial: Interface: Baudrate

If Baudrate was selected:

Local M&C Bus Baud Rate: 38400 Baud (bcE)

The only asynchronous character format supported is 8 bits data, No

IMPORTANT

parity and 1 stop bit.

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Select: CONFIG: Remote: Remote: Ethernet

If Ethernet was selected:

Ethernet Config: IP Address/Range MAC Gateway SNMP GigaBit I/F Addr

IP Address/Range MAC

Gateway

SNMP Permits the user to select and control Communities or Traps. GigaBit Interface Address/Range

Permits the user to select the IP address . Displays the modem’s MAC address, this is programmed at the

factory and is not user changeable. If installed, the Gigabit Ethernet interface’s MAC address will also be displayed.

The IP Gateway address is the default address that the modem will send all IP responses when the message originated from a source outside the modems local attached network.

Permits the user to set the Gigabit Ethernet interface’s management IP address and subnet mask (range).

For the address fields the value of the digit is changed using the



IMPORTANT

arrow keys. The user should then press [E]

4.3.2 Select: Monitor

Monitor: Alarms Event-Log Rx-Params Statistics GigaBit I/F Stats

Alarms Permits the user to select and view Tx, Rx, or Unit alarms. Event-Log Permits the user to select View, or clear-all stored events. Rx-Params Permits the user to view FC, RSL, BERT, Buffer, Eb/No, or BER. Statistics Permits the user to select View, Clear-All or Config statistics. GigaBit I/F

Gigabit Interface link statistics. Permits the user to select View or Clear-All.

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4.3.2.1 Select: Monitor: Alarms

Mod #1 Mod #2 Mod #3 Mod #4 Tx Intf #1 Tx Intf #2 Tx Intf #3 Tx Intf #4

Demod #1 Demod #2 Demod #3 Demod #4 Rx Intf #1 Rx Intf #2 Rx Intf #3 Rx Intf #4 Rx Intf #5 Rx Intf #6 Rx Intf #7 Rx Intf #8 Rx Intf #9

Unit

Unit #1 Unit #2 Unit #3 Unit #4 Unit #5 Unit #6 Unit #7 Unit #8 Unit #9 Unit #10 Unit #11 Unit #12 Unit #13 Unit #14 Unit #15 Unit #16 Unit #17 Unit #18 Unit #19 Unit #20 Unit #21

Permits the user to view transmit alarms. Modulator symbol clock Phase Lock Loop status. Modulator RF Synthesizer Phase Lock Loop status. Modulator IQ activity status. Modulator Nyquist filter Over range. Transmit data interface clock Phase Lock Loop status. Transmit data interface terrestrial clock activity status. Transmit data interface SCT (send clock timing) Phase Lock Loop status. Transmit data interface AIS (alarm indication signal) status. Permits the user to view receive alarms. Demodulator carrier Phase Lock Loop status. Demodulator FEC (forward error correction) lock status. Demodulator RF Synthesizer Phase Lock Loop status. Demodulator IQ activity status. Demultiplexer lock status. Doppler buffer status. Doppler buffer fill status. Doppler buffer overflow status. Doppler buffer underflow status. Doppler buffer Phase Lock Loop status. Doppler buffer reference clock activity status. Receive data interface AIS (alarm indication signal) status. Receive Eb/No lower than Eb/No threshold status. Permits the user to view unit alarms. + 5 volt power supply is out of tolerance. + 3.3 volt power supply is out of tolerance. + 2.5 volt power supply is out of tolerance. + 1.5 volt power supply is out of tolerance. + 12 volt power supply is out of tolerance.

- 12 volt power supply is out of tolerance. + 18 volt power supply is out of tolerance. Cooling fan fault. External reference activity status. 192 MHz clock Phase Lock Loop status. 10 MHz reference Phase Lock Loop status. M&C FPGA configuration fault. Modulator FPGA configuration fault. Demodulator FPGA configuration fault. Decoder FPGA configuration fault. Transmit interface FPGA configuration fault. Receive interface FPGA configuration fault. FEC #1 FPGA configuration fault. FEC #2 FPGA configuration fault. Optional data interface card FPGA configuration fault. FPGA DCM Phase Lock Loop fault.

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Select: Monitor: Alarms: Transmit: Mod 1st Position

If Mod 1st character was selected.

Mod: +--- Mod symbol clk Intf: ---- not locked.

Select: Monitor: Alarms: Transmit: Intf 1st Position

If Intf 1st character was selected.

Mod: ---- TXIntf data Intf: +--- not locked.

Select: Monitor: Alarms: Receive: Demod 1st Position

If Demod 1st character is selected.

Demod: +--- Demod IF not Intf: --------- locked

Select: Monitor: Alarms: Receive: Intf 1st Position

If Intf 1st character is selected.

Demod: ---- Demux not Intf: +-------- locked

Select: Monitor: Alarms: Unit 1

If Unit 1st character is selected.

Unit: +--------------- +5.0V Power is

----- out of range.

Position

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4.3.2.2 Select: Monitor: Event-Log

Stored Events: View Clear-All (efE)

View

Clear-All

IMPORTANT

Permits the user to view the stored faults. The modem will store up to 255 fault events.

Permits the user to clear all stored faults.

To view the details of a stored fault select an event number by pressing enter. Then scroll through the listed faults for a description of the fault. If the faulted listed is power on or power off, nothing will be displayed if that event is selected.

Select: Monitor: Event-Log: View

Event 001:003 1:43:02 27/09/05 Mod: ---- ++ -- (bcE)

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4.3.2.3 Select: Monitor: Rx-Params

Fc=+05917 RSL<-60.0 dBm BERT=N/A Buf=000% Eb/No=Loss BER <1.0E-12 (efE)

RSL

BERT

Buf Eb/No

BER

Permits the user to view the received carrier frequency offset in Hz. The range is the same as the acquisition range of the modem, 60 kHz.

Permits the user to view the signal level of the received carrier in dBm. The range supported is +15 to –60 dBm.

Permits the user to view the measured BER. This requires that the modem be set to Test mode for Rx. If a Fireberd is supplying a data pattern, only the Test mode for the Rx needs to be turned on. The Fireberd data pattern and the modems data pattern must match to work properly.

Permits the user to view the buffer fill status in a percentage format. Permits the user to view the estimated Eb/No of the received carrier. The range

is threshold to 20 dB Eb/No. Permits the user to view the estimated BER based on the demodulator’s

measurement of the carrier to noise.

The difference between BER and BERT is: BER is estimated in the demodulator, BERT is measured when the test mode is turned on.

IMPORTANT

4.3.2.4 Select: Monitor: Statistics

Link Statistics: View Clear-All Config (efE)

View

Clear-All Config

Permits the user to view the stored statistics. The statistics are limited to minimum, average and maximum Eb/No.

Permits the user to clear all stored statistics. Permits the user to set the interval that the statistics are stored. This ranges

from 10 minutes to 90 minutes in 10 minute steps. The function can also be disabled.

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4.3.2.5 Select: Monitor: GigaBit I/F St atistics

GigaBit Ethernet Card Statistics: View Clear-All

View Clear-All

Permits the user to view the link statiscal counters. Permits the user to clear or reset the FPGA link error counter.

This menu will not appear unless a GigaBit Ethernet Interface is plugged into the modem.

IMPORTANT

4.3.3 Select: Test

TEST: Carrier Loopback BERT

(efE)

Carrier Permits the user to select carrier test modes, which include, Normal, Tx-CW or

Loopback Permits the user to select Normal, IF, I/01, I/02 modes. Normal means,

BERT Permits the user to select Tx, Pattern, Errins, Reset, Rx. Errs or BER. Tx

Tx-1,0. Normal means, standard modem operation, not a test mode. Tx-CW

means a pure carrier, which can be used for frequency and power measurements. Tx-1,0 means that the modulator will produce an offset test carrier (single upper side band suppressed carrier), This test mode allows the user to check for quadrature error in the modulator.

standard modem operation, not a test mode. IF mode means, that the output of the modulator is looped back to the demodulator (inside the modem) to verify transmit and receive configurations match as well as the data inputs and outputs. I/O1 means, baseband loopback which will loop the transmit data (after the interface) back to the receive data path interface. This mode is useful for checking interface cabling and clocking. I/O2 is currently the same as I/O1.

on/off allows the user to either ignore the Tx data interface or use an internally generated PN pattern, or to function normally. Pattern allows the user to select test data patterns. Error insert allows the user to insert errors in the data stream to verify that the circuit is indeed connected and operational. Reset allows the user to clear the BER and Error displays while restarting the test. Rx on/off allows the user to turn the bit error tester on. This will count any errors in the receive data stream and compare it to a time base. Errors are the absolute count of errors, which is very useful when the error insert mode is on. BER is the measured bit error rate.

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4.3.3.1 Select: Test: BERT

BERT: Tx:Off Pattern:2047 ErrIns (efE) Reset Rx:Off Errs:=0000000 BER:NoSync

Tx Permits the user to turn the transmit test pattern generator On or Off. Pattern

Mark Space 1:1 1:3 2E15-1 2E20-1 2E23-1

MIL188

2047

ErrIns Reset Rx Errs BER

IMPORTANT

Permits the user to select a number of test data patterns. Means, all one’s. Means, all zero’s. Means, a one followed by a zero and then repeats. Means, a one followed by two zero’s and then repeats. A pseudo-random data pattern of 2^15 –1, compatible with standard BERT’s. A pseudo-random data pattern of 2^20 –1, compatible with standard BERT’s. A pseudo-random data pattern of 2^23 –1, compatible with standard BERT’s. A modified pseudo-random data pattern of 2^11 –1, compatible with the MIL-

188-165 test data pattern requirement of a continuous stream of 50 zero’s every 10,000 bits. This pattern has 5 normal 2047 patterns, with the fifth patterns longest string of zero’s (11) stretched an additional 39 bits to create a lack of transitions for 50 bits approximately every 10,000 bits.

A pseudo-random data pattern of 2^11 –1, compatible with standard BERT’s. Permits the user to insert a single error in the data stream, by pressing enter.

Permits the user to restart the BER test and clear the error and BER displays. Permits the user to turn on the receive bit error test set. Permits the user to view the absolute number of errors counted. Permits the user to view the bit error rate as measured by the modem.

The BER function can work with a firebird supplying the transmit data test pattern, while only turning on the Rx bit error rate tester. The transmit test pattern generator can be turned on at the far end of the link and as long as the test patterns match the Rx BERT can measure the BER of the link. An external bit error test set can be used even when the internal bit error test set is enabled. If AIS is enabled the data will be over written with all one’s.

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4.3.3 Select: Save/Load

Save/Load: Loc:0 Action: View Empty (efE)

Loc

Action

IMPORTANT

Permits the user to select the location to either save or load a configuration. There are 10 locations available, 0 – 9.

Permits the user to select either Save or load the selected location. View is the default setting that allows the user to select the location before loading or saving. To save a configuration go through the modems menu’s and configure all the necessary parameters. Then select a location, then select save and press enter. To load a saved configuration, select the desired configuration, then select load and press enter.

Resetting the modem will cause all configurations to be cleared!

4.3.4 Select: Utility

UTILITY: RT-Clk RefAdjust ID Display Cal Agc AudibleAlarm Firmware FAST

RTClk

RefAdjust

Display

Cal

Agc

AudibleAlarm Firmware

FAST

Permits the user to select and set the Real-Time Clock. Hours are in 24 hour time format. Date format is day, months and years.

Permits the user to select and adjust the internal high stability 10 MHz oscillator to counteract aging. The control value is in hex, not decimal and has a range of 000 to FFF. The typical cal point for a modem is nominally around 400.

Permits the user to give the communications link a name. This name can be a combination of alpha and numeric characters up to 24 characters in length. Additional characters supported are: (, ), *, +, /, period, comma and space.

Permits the user to adjust the front panel display brightness. Settings are 25%, 50%, 75% or 100%.

Permits the user to calibrate the L-Band IF board. This calibration is required when increasing the data rate beyond 52 Mbps and is Not operational at this time.

Permits the user to select Minimum and Maximum voltage levels for the external AGC monitor voltage that is available on the AUX connector.

Permits the user to disable or enable the alarm. Permits the user to select which image will be loaded and view information on

the Boot ROM, Image#1 or Image#2. Permits the user to load FAST codes and view the modem serial number plus

the enabled FAST options.

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Select: Utility: RT-Clk

Edit Real-Time Clock: 15:34:25 27/09/05 (bcefE)

Select: Utility: RefAdjust

Internal 10 MHz Ref Freq Fine Adjust: 3F3 (bcefE)

Select: Utility: AGC

AgcMan: Min Value: 00.0 Volts Max Value: 10.0 Volts (efE)

Min Value

Max Value

Permits the user to specify the voltage to output on the External AGC voltage signal when the demodulator RSL is at it’s minimum level.

Permits the user to specify the voltage to output when the demodulator RSL is at it’s maximum level.

4.3.4.1 Select: Utility: Firmware

Firmware Images: Information Select (efE)

Information

Bootrom

Image#1/ Image#2 Select

Permits the user to select and view information on the firmware and software used by the modem.

Displays: the release date, The Firmware number and the revision number.

Displays: the Bulk, App, M&C, Mod, Demod, Decoder, Filters, TxIntfc, RxIntfc, and Turbo information.

Permits the user to select and which image will be loaded into the modem.

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Select: Utility: Firmware: Information: Bootrom

Bootrom: 05/13/05 FW11186-1- 1.1.1

Select: Utility: Firmware: Information: Image#1

Image#1: Bulk App M&C Mod Demod Decoder Filters TxIntfc RxIntfc Turbo (efE)

Image#

Bulk App M&C Mod Demod Decoder Filters

TxIntfc RxIntfc Turbo

The following information is displayed: the firmware number including the revision, the release date and the version number. Both images have similar information with only the revision and the release date being different

FW/11188D, 01/11/05,1.1.5c (The bulk is the sum of all the individual pieces). FW/11187D, 01/11/05,1.1.5c FW/11185-, 10/13/05,1.1.1 FW/11179-, 10/13/05,1.1.1 FW/11181A, 11/07/05,1.1.2 FW/11182C, 12/15/05,1.1.4 FW/11179-, 10/13/05,1.1.1 FW/11181A, 11/07/05,1.1.2 FW/11180C, 01/05/06,1.1.4a FW/11183B, 11/16/05,1.1.3 FW/11184C, 12/12/05,1.1.4

Select: Utility: Firmware: Select

Current Active Image#2 Next Reboot Image#1 #2 (efE)

To reboot the modem, cycle the power.

IMPORTANT

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Mocomtech SLM-5650 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Errata A

Errata B

Customer Support

Table of Contents

Figures

Tables

Chapter 1. Introduction

Chapter 2. INSTALLATION

Chapter 3. Configuration