Codan 6700 Series, 6586-C/W-M2-TO, 6560, 6900 Series, 6570 User Manual

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Block Up Converter Systems

6700/6900 series

SATELLITE COMMUNICATIONS

USER GUIDE

No part of this guide may be reproduced, transcribed or translated into any language or transmitted in any form whatsoever without the prior written consent of Codan Limited.

Codan part number 15-44027-EN Issue 1, October 2006

Introduction

1Overview

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

BUC system configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

BUC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Transmit frequency bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Frequency conversion plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Power supply options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

LNB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Redundancy systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

The redundancy controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

How the redundancy controller works . . . . . . . . . . . . . . . . . . . . . . . . . 20

RF waveguide switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

The Remote Controller 6570 and Hand-held Controller 6560 . . . . . . . . . . 26

2 Installation

CODAN

Unpacking the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Installing the BUC equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Cable recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Cable lengths. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

IF levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Serial interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

RS232 interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

RS422/485 interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

FSK interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Connecting the serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Permanent interface connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Temporary interface connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Monitor and control interface of the BUC . . . . . . . . . . . . . . . . . . . . . . . . . 40

Installing the redundancy system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Block Up Converter Systems 6700/6900 series User Guide i

Table of contents

Mounting the redundancy controller . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Installing separate transmit and receive RF waveguide switches . . . . . 42

Installing the combined RF waveguide/coaxial switch (C-Band

transmit/receive systems only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Connecting the power cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Connecting the control cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

Connecting the IF from the redundancy controller to the BUCs . . . . . . 48

Connecting the IF cables between an L-Band IF modem (or other

equipment) and the redundancy controller. . . . . . . . . . . . . . . . . . . . . . . 48

Connecting the IF from the LNBs to the redundancy controller . . . . . . 49

Grounding the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Serial interfaces of the BUCs from the redundancy controller . . . . . . . . . . 50

Accessing the Auxiliary I/O interface on the redundancy controller . . . . .51

Setting up the redundancy switching equipment . . . . . . . . . . . . . . . . . . . . . 53

3 Setting up and operating the BUC system

Switching on the BUC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

LED indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

Serial interface monitor and control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Serial interface commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Switching the redundancy system on and off . . . . . . . . . . . . . . . . . . . . . . . 76

Checking the operation of the LED indicators and controls . . . . . . . . . . . . 76

Switching between streams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

Controlling the redundancy system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

4 Maintenance and fault finding

Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

Connections to power supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Servicing requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

RF waveguide switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Fuses and overcurrent protection in the Redundancy Controller

6586 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

If technical assistance is required... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Finding faults in the BUC system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

ii Block Up Converter Systems 6700/6900 series User Guide

Table of contents

Using the BUC fault diagnosis charts . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Test procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Finding faults in the redundancy switching equipment . . . . . . . . . . . . . . 100

Replacing fuses in the redundancy controller . . . . . . . . . . . . . . . . . . . 102

Resolving inconsistent stream selections . . . . . . . . . . . . . . . . . . . . . . 103

Finding faults in an RF waveguide switch . . . . . . . . . . . . . . . . . . . . . 103

Finding faults in the redundancy controller . . . . . . . . . . . . . . . . . . . . 107

Disconnecting a faulty BUC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Reverting to a single-BUC earth station . . . . . . . . . . . . . . . . . . . . . . . 108

Finding faults in the remote controller . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Appendix A—BUC model and redundancy system numbers

Appendix B—Example outputs for the View commands

Appendix C—Compliance

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

European R&TTE Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Electromagnetic compatibility and safety notices . . . . . . . . . . . . . . . . . . 123

Appendix D—Definitions

Standards and icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Acronyms and abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Unit multipliers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

About this issue. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Index

Block Up Converter Systems 6700/6900 series User Guide iii

Table of contents

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iv Block Up Converter Systems 6700/6900 series User Guide

List of figures

Figure 1: BUC with L-Band modem and LNB . . . . . . . . . . . . . . . . 5

Figure 2: BUC with L-Band modem, external in-line PSU,

and LNB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 3: C-Band frequency conversion plan at an LO

frequency of 7300 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 4: C-Band frequency conversion plan at an LO

frequency of 7375 MHz . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 5: C-Band frequency conversion plan at an LO

frequency of 7600 MHz . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 6: C-Band frequency conversion plan at an LO

frequency of 7675 MHz . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 7: Ku-Band frequency conversion plan for BUCs

that cover the Standard frequency band . . . . . . . . . . . . . 12

Figure 8: Ku-Band frequency conversion plan for BUCs

that cover the Extended frequency band . . . . . . . . . . . . 13

Figure 9: Control panel on the redundancy controller . . . . . . . . . . 18

Figure 10: Connector panel on the redundancy controller. . . . . . . . 19

Figure 11: IF levels required for short cables . . . . . . . . . . . . . . . . . 35

Figure 12: IF levels required for long cables . . . . . . . . . . . . . . . . . . 36

Figure 13: Monitor and control interface of the BUC . . . . . . . . . . . 41

Figure 14: Auxiliary I/O interface of the redundancy controller . . . 52

Figure 15: Main BUC fault diagnosis chart . . . . . . . . . . . . . . . . . . . 86

Figure 16: BUC fault diagnosis chart 1 . . . . . . . . . . . . . . . . . . . . . . 87

Figure 17: BUC fault diagnosis chart 2 . . . . . . . . . . . . . . . . . . . . . . 88

Figure 18: BUC fault diagnosis chart 3 . . . . . . . . . . . . . . . . . . . . . . 89

Figure 19: BUC fault diagnosis chart 4 . . . . . . . . . . . . . . . . . . . . . . 90

Figure 20: BUC fault diagnosis chart 5 . . . . . . . . . . . . . . . . . . . . . . 91

Figure 21: BUC fault diagnosis chart 6 . . . . . . . . . . . . . . . . . . . . . . 92

Figure 22: BUC fault diagnosis chart 7 . . . . . . . . . . . . . . . . . . . . . . 93

Figure 23: BUC fan fault diagnosis chart 1 . . . . . . . . . . . . . . . . . . . 94

Figure 24: BUC fan fault diagnosis chart 2 . . . . . . . . . . . . . . . . . . . 95

Figure 25: LNB fault diagnosis chart. . . . . . . . . . . . . . . . . . . . . . . . 96

CODAN

Block Up Converter Systems 6700/6900 series User Guide v

List of figures

Figure 26: RF waveguide switch fault diagnosis chart . . . . . . . . . .104

Figure 27: Remote controller supply fault diagnosis chart . . . . . . .110

Figure 28: Segments of the BUC model number . . . . . . . . . . . . . .111

Figure 29: Segments of the redundancy system number. . . . . . . . .113

vi Block Up Converter Systems 6700/6900 series User Guide

List of tables

Table 1: Transmit frequency bands for C-Band and

Ku-Band BUCs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 2: Frequency ranges for C-Band BUCs (Standard) . . . . . . . 8

Table 3: Frequency ranges for C-Band BUCs (Extended) . . . . . . . 9

Table 4: Frequency ranges for Ku-Band BUCs (Standard) . . . . . 11

Table 5: Frequency ranges for Ku-Band BUCs (Extended). . . . . 12

Table 6: Power supply options for BUCs. . . . . . . . . . . . . . . . . . . 13

Table 7: Frequency band options for the Ku-Band LNB . . . . . . . 15

Table 8: Pinouts of the AC INPUT connector

(Amphenol T 3110 000) . . . . . . . . . . . . . . . . . . . . . . . . . 31

Table 9: Recommendations for IF coaxial cables. . . . . . . . . . . . . 32

Table 10: Cable lengths resulting in a 20 dB loss . . . . . . . . . . . . . 33

Table 11: LED indicators on the BUC and their states . . . . . . . . . 59

Table 12: LED indicators on the control panel of the

redundancy controller. . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Table 13: Help commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Table 14: Set commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Table 15: Output commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Table 16: View commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Table 17: Reset commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Table 18: Fuses in the redundancy controller. . . . . . . . . . . . . . . . . 83

Table 19: Test A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Table 20: Test B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Table 21: Test C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Table 22: Test D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Table 23: Test E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Table 24: Test F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Table 25: Resistance of coils when the RF waveguide

switch is in positions 1 and 2 . . . . . . . . . . . . . . . . . . . . 105

Table 26: Tell-back contacts for switch positions 1 and 2 . . . . . . 108

Table 27: Definition of the BUC model number . . . . . . . . . . . . . 111

Table 28: Definition of the redundancy system number . . . . . . . 113

CODAN

Block Up Converter Systems 6700/6900 series User Guide vii

List of tables

Table 29: Electrical safety symbols . . . . . . . . . . . . . . . . . . . . . . . .125

Table 30: Earth symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126

Table 31: Warning labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126

viii Block Up Converter Systems 6700/6900 series User Guide

Introduction

This user guide is for installation technicians and operators of the Block Up Converter 6700/6900 series.

This guide contains the following sections:

Section 1 Overview—general description of the BUC

Section 2 Installation—installation instructions specific to

Section 3 Setting up and operating the BUC system—

Section 4 Maintenance and fault finding—description of

Appendix A BUC model and redundancy system numbers—

Appendix B Example outputs for the View commands—

CODAN

the BUC and redundancy systems

setup and operating procedures, and serial interface commands

how to maintain and fault find a BUC and a redundancy system

explains how to interpret the model number of your BUC and redundancy system

summary of the commands described on

page 57, Setting up and operating the BUC

system

Appendix C Compliance—compliance information and

safety notices

Appendix D Definitions—explains the terms and

abbreviations used in this guide

An index can be found at the end of the guide.

Block Up Converter Systems 6700/6900 series User Guide 1

Introduction

This page has been left blank intentionally.

2 Block Up Converter Systems 6700/6900 series User Guide

1 Overview

This section contains the following topics:

Introduction (4)

BUC system configuration (5)

BUC (7)

LNB (15)

Redundancy systems (16)

The Remote Controller 6570 and Hand-held Controller 6560 (26)

CODAN

Block Up Converter Systems 6700/6900 series User Guide 3

Overview

Introduction

The Codan Block Up Converter 6700/6900 series is a highperformance BUC for use in a satellite earth station.

The Block Up Converter 6700/6900 series comprises:

•a BUC

• an LNB

•a TRF

• accessories

The BUC is designed to be mounted on a wide range of earth station antennas. The LNB and TRF are designed to be directmounted (that is, mounted on the antenna feed support structure). While some BUCs may be direct-mounted to the feed, others may be boom-mounted or pedestal-mounted.

The BUC converts transmit L-Band IF signals from the modem to the required RF band. The LNB converts received RF signals to IF signals in the L-Band frequency range to drive the modem receive IF input.

The modem generally supplies the BUC and the LNB with 10 MHz reference signals, and the LNB with the required DC power. Certain BUCs require external sources of either AC or DC supply. Certain BUCS and LNBs have internal reference sources and do not require an external 10 MHz reference signal.

If your modem cannot supply 10 MHz reference signals to the LNB and BUC, and DC power to

NOTE

The TRF is a waveguide filter that ensures transmit signals do not enter and overload the LNB.

C-Band BUCs are supplied with a waveguide or N-type output. Ku-Band BUCs are supplied with a waveguide output only.

4 Block Up Converter Systems 6700/6900 series User Guide

the LNB (and BUC if this is needed), contact your Codan representative for information on accessories and options that may be available.

BUC system configuration

The BUC may be used in the following configurations:

Configuration... See...

BUC with L-Band modem and LNB Figure 1 on page 5

Overview

Monitor &

Control

Data

BUC with L-Band modem, external

Figure 2 on page 6

in-line PSU, and LNB

Figure 1: BUC with L-Band modem and LNB

External AC power

connector or

L-Band Tx IF,

+24/48 V DC power

(DC-powered BUC only),

10 MHz Ref*,

FSK M&C

(optional)

RS232/422/485

Monitor & Control

(optional)

L-Band Modem

+48 V DC power

BUC

Tx to

antenna

AC mains

Rx from antenna

L-Band Rx IF,

LNB

+15 V DC power (nominal),

10 MHz Ref*

* Certain BUC and LNB versions have internal references

and do not require an external 10 MHz reference

Block Up Converter Systems 6700/6900 series User Guide 5

TRF

Overview

Figure 2: BUC with L-Band modem, external in-line PSU, and LNB

L-Band Tx IF,

48 V DC,

10 MHz Ref*,

FSK M&C

(optional)

BUC

Tx to

antenna

Monitor &

Control

Data

AC mains

L-Band Modem

* Certain BUC and LNB versions have internal references

and do not require an external 10 MHz reference

External

in-line

BUC PSU

L-Band Tx IF,

10 MHz Ref,

FSK M&C

(optional)

L-Band Rx IF,

+15 V DC power (nominal),

10 MHz Ref*

RS232/422/485

Monitor & Control

LNB

(optional)

Rx from antenna

TRF

6 Block Up Converter Systems 6700/6900 series User Guide

BUC

Transmit frequency bands

Table 1: Transmit frequency bands for C-Band and Ku-Band BUCs

BUC Frequency band Transmit frequency

C-Band Standard 5 850 to 6 425

Ku-Band Standard 14000 to 14 500

Overview

band

(MHz)

Extended 5 850 to 6 725

Extended 13 750 to 14500

Frequency conversion plans

All 6700/6900 series BUCs are frequency inverting, that is, the higher the RF frequency required, the lower the modem IF frequency must be.

To calculate the modem IF frequency (f RF frequency, subtract the RF frequency (f frequency (f

= fLO – f

Block Up Converter Systems 6700/6900 series User Guide 7

) for a given

) from the LO

Overview

Example 1:

The LO frequency of your C-Band BUC is set to 7300 MHz (see Table 3 on page 9). If you need an RF frequency of 5975 MHz, then you must set the modem IF frequency to:

= 7300 – 5 975

= 1325 MHz

Example 2:

The LO frequency of your Ku-Band BUC is 15450 MHz (see

Table 4 on page 11). If you need an RF frequency of

14500 MHz, then you must set the modem IF frequency to:

= 15450 – 14500

= 950 MHz

C-Band

Figure 3 to Figure 6 show the frequency conversion plan for

each LO frequency of the C-Band BUCs.

Table 2: Frequency ranges for C-Band BUCs (Standard)

LO frequency

(MHz)

Tuning range of

L-Band

(MHz)

Output

frequency

(MHz)

See...

7300 950–1450 5850–6350 Figure 3 on page 9

7375 950–1525 5850–6425 Figure 4 on page 10

8 Block Up Converter Systems 6700/6900 series User Guide

Table 3: Frequency ranges for C-Band BUCs (Extended)

Overview

LO frequency

(MHz)

Tuning range of

L-Band

(MHz)

Output

frequency

(MHz)

See...

7300 950–1450 5850–6 350 Figure 3 on page 9

7375 950–1525 5850–6 425 Figure 4 on page 10

7600 950–1750 5850–6 650 Figure 5 on page 10

7675 950–1750 5925–6 725 Figure 6 on page 11

Figure 3: C-Band frequency conversion plan at an LO frequency of 7300 MHz

450 MHz1 350 MHz6

950 MHz

IF input RF output

Block Up Converter Systems 6700/6900 series User Guide 9

850 MHz5

Overview

Figure 4: C-Band frequency conversion plan at an LO frequency of 7375 MHz

525 MHz1 425 MHz6

950 MHz

IF input RF output

850 MHz5

Figure 5: C-Band frequency conversion plan at an LO frequency of 7600 MHz

750 MHz1 650 MHz6

950 MHz

IF input RF output

850 MHz5

10 Block Up Converter Systems 6700/6900 series User Guide

Overview

Figure 6: C-Band frequency conversion plan at an LO frequency of 7675 MHz

750 MHz1 725 MHz6

950 MHz

IF input RF output

925 MHz5

Ku-Band

Figure 7 and Figure 8 show the frequency conversion plans

for each LO frequency of the Ku-Band BUCs.

Table 4: Frequency ranges for Ku-Band BUCs (Standard)

LO frequency

(MHz)

Tuning range of

L-Band

(MHz)

Output

frequency

(MHz)

See...

15450 950–1450 14000–14500 Figure 7 on page 12

Block Up Converter Systems 6700/6900 series User Guide 11

Overview

Table 5: Frequency ranges for Ku-Band BUCs (Extended)

LO frequency

(MHz)

Tuning range of

L-Band

(MHz)

Output

frequency

(MHz)

See...

15450 950–1450 14000–14 500 Figure 7 on page 12

15450 950–1700 13750–14 500 Figure 8 on page 13

Figure 7: Ku-Band frequency conversion plan for BUCs that cover the Standard frequency band

450 MHz1 500 MHz14

950 MHz

IF input RF output

12 Block Up Converter Systems 6700/6900 series User Guide

000 MHz14

Overview

Figure 8: Ku-Band frequency conversion plan for BUCs that cover the Extended frequency band

700 MHz1

450 MHz

950 MHz

Power supply options

The power supply option for your BUC is indicated in the model number on the serial number label. For information on how to interpret the model number see page 111, BUC model

and redundancy system numbers.

Some BUCs are powered by 48 V DC or 24 V DC. Other BUCs are powered via an AC mains input.

IF input RF output

500 MHz14

000 MHz

750 MHz

Table 6: Power supply options for BUCs

Input Power supply option Feed to BUC

DC 24 V/48 V via IF cable or separate

cable and connector

AC 94–275 V AC via separate cable and

connector

Block Up Converter Systems 6700/6900 series User Guide 13

Overview

NOTE

BUCs that are AC-powered, also draw current from the DC power input on the IF input cable for remote alarm indication purposes only.

Certain BUCs with external DC power connectors may also have auto-sensing circuits, and can be powered from either the external connector or via the IF INPUT connector. If both connectors are powered, the external connector is automatically selected.

14 Block Up Converter Systems 6700/6900 series User Guide

LNB

Overview

The frequency band that is down converted by the LNB is indicated on the model label of the LNB.

C-Band

The C-Band LNB is supplied for operation on the frequency band 3400 to 4200 MHz. It has an LO frequency of 5150 MHz.

NOTE The C-Band LNB is frequency inverting.

Ku-Band

The Ku-Band LNB may be supplied for operation in one of three frequency band options listed in Table 7.

Table 7: Frequency band options for the Ku-Band LNB

Band option Receive frequency

(MHz)

1 10950–11700 10000 950–1700

2 11700–12 200 10 750 950–1450

3 12250–12750 11300 950–1450

Block Up Converter Systems 6700/6900 series User Guide 15

LO frequency

(MHz)

L-Band output

frequency

(MHz)

Overview

Redundancy systems

The Codan Redundancy Controller 6586 is used to control two BUCs and two LNBs (when used) in a redundancy system.

When a detectable fault occurs in the on-line BUC, and the off-line BUC is serviceable, the redundancy controller switches over the two BUCs. The interruption to traffic is typically less than one second. Transmit/receive systems also include two LNBs, which are switched in parallel with the BUCS. In such systems, simultaneous switching of both BUC and LNB occurs when a fault is detected in either the on-line BUC or the on-line LNB. This is known as stream-switching.

A typical BUC-LNB system comprises:

•a BUC

• an LNB (in transmit/receive systems only)

• a TRF (optional)

• appropriate connecting cables

A typical redundancy system comprises:

•two BUCs

• two LNBs (in transmit/receive systems only)

• an Redundancy Controller 6586

• one or two RF waveguide switches or a combined RF waveguide/coaxial switch

• a Remote Controller 6570 (optional)

For information on the remote controller see the Hand-held and Remote Controller 6560/6570 User Guide.

16 Block Up Converter Systems 6700/6900 series User Guide

Redundancy system control

You can control and monitor the redundancy switching equipment:

• locally, using a Hand-held Controller 6560 connected to

the BUC 1 Serial/BUC 2 Serial connectors on the redundancy controller

• remotely, using the optional Remote Controller 6570

connected to the Auxiliary I/O connector on the redundancy controller

The redundancy controller

The redundancy controller is the main component of the redundancy system. It controls the switching between the on-line and off-line BUC and LNB. The redundancy controller is normally installed on the antenna pedestal near the two BUC systems. The redundancy controller is powered from the AC mains supply.

Overview

The redundancy controller performs the following functions:

• monitors the Stream 1 and Stream 2 equipment for faults

• monitors the RF waveguide switches for switch faults

• controls the RF waveguide switch positions

• directs the IF paths via high frequency relays and splitter networks

• supplies power to the BUCs, LNBs (when used), and optional Remote Controller 6570

The redundancy controller communicates with the BUCs via relay contacts. The serial interfaces of the BUCs are kept available for separate use. DC supply connections and isolated contact closures are available on the Auxiliary I/O connector of the redundancy controller.

The control panel inside the redundancy controller is shown in

Figure 9.

Block Up Converter Systems 6700/6900 series User Guide 17

Overview

Figure 9: Control panel on the redundancy controller

BUC 1

Redundancy

Controller

Tx IF

Status

Rx IF

Voltage

Selection

Remote

Controller BUC 1 BUC 2 LNB 1* LNB 2*

* Not used in transmit-only systems

LNB 1*

BUC 2

LNB 2*

Fuse status LEDs

BUC

Switch

LNB

Switch*

LED indicators

The control panel of the redundancy controller has groups of LEDs that indicate the status of the redundancy system and its fuses. The colours and functions of these LEDs are described in Table 12 on page 60.

18 Block Up Converter Systems 6700/6900 series User Guide

Overview

Switches

The control panel of the redundancy controller has one switch. The function of this switch is to select the AC input voltage (115 or 230 VAC).

Connectors

The connector panel is located at the bottom of the redundancy controller.

Figure 10: Connector panel on the redundancy controller

BUC Switch Control

LNB Switch Control

BUC 1 Serial BUC 1 Control

BUC 2 Serial

BUC 2 Control

AC Power Input

Auxiliary I/O

Rx IF Input 2Rx IF OutputRx IF Input 1Tx IF Output 2Tx IF InputTx IF Output 1

Block Up Converter Systems 6700/6900 series User Guide 19

Overview

How the redundancy controller works

When you power up the system, the redundancy controller uses the current status of the BUC Switch and LNB Switch (when used) to select the on-line stream.

If the redundancy controller detects that the

NOTE

When the redundancy controller is operating, it monitors the two BUC and LNB (when used) streams for faults. When a detectable fault occurs in the on-line BUC and LNB, and the off-line BUC and LNB is serviceable, the redundancy controller switches over the two streams. The interruption to traffic is typically less than one second.

The redundancy controller switches:

• the receive IF signals between the LNBs (when used) and the modem equipment

• the transmit RF signals between the BUCs and the transmit antenna port

switches are inconsistent, or cannot be detected, it selects Stream 1.

• the receive RF signal between the receive antenna port and the LNBs (when used)

The transmit IF signal is not switched. Rather, a splitter allows the transmit IF signal to feed both BUCs simultaneously. In transmit-only systems, a transmit-only connector assembly is supplied and fitted to the LNB Switch Control connector.

20 Block Up Converter Systems 6700/6900 series User Guide

Overview

BUC faults

The redundancy controller uses a PLD to monitor the alarm signals from both BUCs. The BUCs send alarm signals via cables connected to the 14-way BUC 1 Control and BUC 2 Control connectors on the redundancy controller.

Red BUC 1/BUC 2 LEDs on the control panel of the redundancy controller indicate that there is a fault with the corresponding BUC or LNB. In transmit-only systems, receive stream faults are not indicated. You should observe the LED indicators on the BUC for details of the alarm condition. For information on the LED indications on the BUC see

Table 11 on page 59. You can connect a Hand-held

Controller 6560 or a PC running terminal-emulating software to the BUC 1 Serial and BUC 2 Serial connectors on the redundancy controller, then diagnose the BUC faults as required. For more information on using the hand-held controller see the Hand-held and Remote Controller 6560/6570 User Guide. For more information on using serial commands on a terminal see page 63, Serial interface

commands.

If you are using remote monitoring and control via a Remote Controller 6570, the Fault LED for a BUC will illuminate if a fault is detected. You can use the Faults menu in the remote controller to diagnose the fault, and the Reset menu to clear latched faults. For more information on using the remote controller see the Hand-held and Remote Controller 6560/6570 User Guide.

Power supply

The redundancy controller is powered from the AC mains supply.

Block Up Converter Systems 6700/6900 series User Guide 21

Overview

Auxiliary I/O interface of the redundancy controller

The Auxiliary I/O interface of the redundancy controller enables you to perform the following functions remotely:

• monitor operation of the redundancy switching system using the isolated relay contacts

• switch streams using external signals

Most of the remote control functions are achieved by grounding the appropriate control signal to 0 V.

The redundancy controller does not have a serial remote control facility. However, serial

NOTE

remote stream switching and monitoring of the redundancy system alarms are available using the BUC command set via either of the BUC 1 Serial/BUC 2 Serial connectors.

For details about the Auxiliary I/O interface of the redundancy controller see page 51, Accessing the Auxiliary I/O interface

on the redundancy controller.

22 Block Up Converter Systems 6700/6900 series User Guide

RF waveguide switches

RF waveguide switches control both the receive and transmit RF paths. The switches direct signals for both on-line and offline BUCs and LNBs (when used). Transmit/receive C-Band systems may use either two RF waveguide switches or one combined RF waveguide/coaxial switch. Transmit/receive Ku-Band systems use two RF waveguide switches only. Transmit-only C-Band or Ku-Band systems use only a single RF waveguide switch.

Systems using two RF waveguide switches

In the receive path, a receive RF waveguide switch directs the received RF from the receive port of the antenna feed to one of the LNBs. The LNB waveguide inputs are coupled to ports 1 and 3 of the LNB switch. The switch is coupled via port 2 to the WR229 (C-Band) or WR75 (Ku-Band) receive port of the antenna. A blanking plate normally protects port 4 from the weather.

In the transmit path, a transmit RF waveguide switch directs the transmitted RF from the on-line BUC to the transmit port of the antenna feed. The RF from the off-line BUC is directed to either a coaxial or a waveguide load.

Overview

For transmit RF, the waveguide outputs of the BUCs are connected to the WR137 (C-Band) or WR75 (Ku-Band) BUC switch via short waveguide sections to ports 1 and 3. Port 2 of the switch connects to the antenna via flexible waveguide. A load or power attenuator terminates port 4 on the switch.

The redundancy controller verifies RF waveguide switching by monitoring the tell-back contacts of both switches. If the tell-back contacts indicate an abnormal condition, the BUC Switch or LNB Switch LEDs on the control panel of the redundancy controller illuminate red.

Block Up Converter Systems 6700/6900 series User Guide 23

Overview

Systems using a combined RF waveguide/coaxial switch (C-Band only)

In the receive path, a receive RF waveguide switch directs the received RF from the receive port of the antenna feed to one of the LNBs.

In the transmit path, an RF coaxial switch directs the transmitted RF from the on-line BUC to the transmit port of the antenna feed. The RF from the off-line BUC is directed to an appropriately-rated termination. The combined RF waveguide/coaxial switch is controlled by a single cable, which is connected to the LNB Switch Control connector on the redundancy controller. The BUC Switch Control connector is not used. The redundancy controller automatically detects the presence of a combined switch and configures its monitoring accordingly.

The combined RF waveguide/coaxial switch combines waveguide and coaxial switching in a single assembly. The switch is an electrically operated, 4-port WR229 waveguide transfer switch, which is mechanically integrated with a 4-port coaxial transfer switch for transmit RF.

The LNBs are directly coupled to ports 1 and 3 of the combined RF waveguide/coaxial switch. The switch is coupled via port 2 to the WR229 receive port of the antenna. A blanking plate normally protects port 4 from the weather.

Coaxial cable connects the BUCs to ports 1 and 3 of the N-type switch. The transmit antenna feed connects to port 2 of the switch. A load or power attenuator connects to port 4.

The redundancy controller verifies RF waveguide switching by monitoring the tell-back contacts to the combined RF waveguide/coaxial switch. If the tell-back contacts indicate an abnormal condition, the LNB Switch LEDs on the control panel of the redundancy controller illuminate red.

In the combined RF waveguide/coaxial switch

NOTE

installation, the BUC Switch LEDs on the control panel of the redundancy controller will not illuminate.

24 Block Up Converter Systems 6700/6900 series User Guide

Overview

Systems using a single transmit RF waveguide switch (transmit-only)

In the transmit path, a single transmit RF waveguide switch directs the transmitted RF from the on-line BUC to the transmit port of the antenna feed. The RF from the off-line BUC is directed into an appropriately-rated termination. The switch is controlled by a cable connected to the LNB Switch Control connector.

The switch is an electrically operated, 4-port WR137 (for C-Band) or WR75 (for Ku-Band) waveguide transfer switch. The BUCs are connected to ports 1 and 3 of the switch. The switch is coupled via port 2 to the transmit port of the antenna. A load or power attenuator connects to port 4.

The redundancy controller verifies RF waveguide switching by monitoring the tell-back contacts to the RF waveguide switch. If the tell-back contacts indicate an abnormal condition, the BUC Switch LEDs on the control panel of the redundancy controller illuminate red.

Block Up Converter Systems 6700/6900 series User Guide 25

Overview

The Remote Controller 6570 and Hand-held Controller 6560

The Remote Controller 6570 provides remote control and monitoring facilities of the BUCs at a convenient indoor location. The remote controller is connected via its BUC Interface connector to the Auxiliary I/O connector on the redundancy controller using the cable supplied.

The Hand-held Controller 6560 provides local control and monitoring facilities of the BUCs at the outdoor-mounted redundancy controller. A hand-held controller may be connected to the BUC 1 Serial or BUC 2 Serial connector. Alternatively, a BUC may be directly controlled by the handheld controller by disconnecting the M/C cable from the M/C connector on the BUC, and connecting the hand-held controller in its place.

26 Block Up Converter Systems 6700/6900 series User Guide

2Installation

This section contains the following topics:

Unpacking the equipment (28)

Installing the BUC equipment (28)

Cable recommendations (32)

Serial interfaces (37)

Connecting the serial interface (39)

Monitor and control interface of the BUC (40)

Installing the redundancy system (42)

Serial interfaces of the BUCs from the redundancy controller (50)

Accessing the Auxiliary I/O interface on the redundancy controller (51)

Setting up the redundancy switching equipment (53)

CODAN

Block Up Converter Systems 6700/6900 series User Guide 27

Installation

Unpacking the equipment

Ensure that the packing boxes are upright as indicated by the printing on the boxes. Open each box and check for signs of damage to the equipment. If you notice any damage, contact Codan immediately to obtain an RMA. Failure to contact Codan before returning the unit may result in any warranty being void.

Installing the BUC equipment

All equipment that is mounted outdoors must be adequately weatherproofed.

Ensure all waveguide joints are properly sealed

WARNING

with the appropriate gasket.

Use self-amalgamating tape to seal connectors and cable entry points from the connector to the cable sheath.

Water is the most common cause of poor

CAUTION

WARNING

28 Block Up Converter Systems 6700/6900 series User Guide

performance in VSAT installations. Ensure that all cables and waveguide junctions are properly sealed.

A radiation hazard exists if the BUC is operated with its RF output unterminated (see page 123,

Radiation safety).

Installation

TRF and LNB

The TRF and LNB are normally mounted directly on the antenna feed structure.

The LNB obtains the required +15 to +24 V DC power and, in certain cases, the 10 MHz reference signal from a compatible L-Band modem. The modem is connected to the receive output connector of the LNB.

BUC

BUCs are supplied with either N-type or waveguide outputs. A mounting kit is supplied with the BUC. Some mounting kits allow the BUC to be mounted on the boom or pedestal of the antenna. Other kits may also be available for different mounting options. Contact your antenna manufacturer if you have specific installation requirements.

Cables

Use an IF coaxial cable to connect the modem to the BUC (see

page 32, Cable recommendations). It is recommended that you

use the same type of cable to connect the modem to the LNB.

If you are using the RS232/422 serial interface, use an M/C cable to connect the BUC to a PC (see page 40, Monitor and

control interface of the BUC).

DC power connection

There are two types of BUCs that are DC-powered: those powered via the IF INPUT connector, and those powered via an external connector.

BUCs that are powered via the IF INPUT connector receive DC power from a source via the IF cable. See BUC specifications or compare your BUC model number against

Table 27 on page 111 for the exact voltage range of your BUC.

Block Up Converter Systems 6700/6900 series User Guide 29

Installation

BUCs that are externally powered from a DC source require appropriate DC power from an external source. See BUC specifications or compare your BUC model number against

Table 27 on page 111 for the exact voltage range of your BUC.

Certain BUCs with external DC power connectors may also have auto-sensing circuits,

NOTE

AC mains connection

AC-powered BUCs operate with any AC input voltage in the range 115–230 VAC. Check BUC specifications for the exact voltage range of your BUC.

and can be powered from either the external connector or via the IF INPUT connector. If both connectors are powered, the external connector is automatically selected.

WARNING

To connect the BUC to the AC mains:

Voltages outside of these limits may cause damage to the BUC.

1 Connect the AC power lead to the AC mains supply.

Before applying power to the BUC, ensure that the installation complies with the

WARNING

safety precautions listed on page 123,

Electromagnetic compatibility and safety notices.

1 Ensure the isolating switch for the AC supply is switched

off.

1 Connect the AC power lead to the AC INPUT connector

on the BUC.

If you need to make your own AC mains cable, or reterminate the cable supplied, Table 8 lists the pin connections and describes the input functions available on the AC INPUT connector on the BUC.

30 Block Up Converter Systems 6700/6900 series User Guide

Installation

Table 8: Pinouts of the AC INPUT connector (Amphenol T 3110 000)

Pin Description

1 Neutral

2 Not connected

3 Active

Protective earth

It is recommended that BUCs are installed as close as possible to the antenna feed to minimise losses.

Heavier BUCs may need to be mounted further

CAUTION

down the boom to minimise the mechanical leverage load on the antenna.

If the waveguide output of each BUC is attached directly to the RF waveguide switch with a rigid connection, ensure that there are no undue stresses on the waveguide section when the flange hardware is tightened. Tighten the BUC mounting screws last. The long mounting rails have oversized holes to enable the BUC to be secured in the exact position required, which avoids stressing the rigid waveguide component.

Block Up Converter Systems 6700/6900 series User Guide 31

Installation

Cable recommendations

Table 9 lists the recommended specifications for IF coaxial

cables used in your system. These specifications place restrictions on the maximum length of the transmit IF cable. The limiting factor is most likely the 20 dB maximum cable loss. Cables that have 20 dB cable loss at L-Band frequencies usually have DC loop resistances much less than those shown below.

Table 9: Recommendations for IF coaxial cables

Characteristic Recommendation

Cable loss at operating frequency

DC loop resistance 2 Ω maximum (+48 V BUC)

Screening 100 dB minimum

Nominal impedance 50 Ω

Connectors BUC end: N-type male

Cable loss specification

The recommended maximum cable loss is derived from the maximum output power normally provided by modems and the maximum gain of the BUC.

20 dB maximum

1 Ω maximum (+24 V BUC)

connector

Indoor end: connector to suit the modem used

32 Block Up Converter Systems 6700/6900 series User Guide

Installation

DC loop resistance specification

The maximum DC loop resistance is determined by the DC power drawn by a BUC and its minimum operating input voltage. Some BUCs are not powered via the cable, so the DC loop resistance of the IF cable is not a consideration for such BUC installations.

Cable lengths

Frequency

(MHz)

CAUTION

To ensure correct operation, the DC loop resistance figure must not be exceeded.

Cable screening specification

Cable screening is derived from regulatory requirements related to the radiation of spurious signals from the antenna. Screening is more critical if the BUC is co-located with other radio transmitting equipment, for example, mobile-phone towers.

Table 10 shows the maximum lengths of different types of

cables to ensure the 20 dB loss recommendation is not exceeded. The cable lengths are shown in metres and feet.

Table 10: Cable lengths resulting in a 20 dB loss

RG223 (m (ft))

Belden 9914

(m (ft))

Belden 9913F

(m (ft))

Times

Microwave

LMR-400

(m (ft))

950 43 (141) 104 (341) 125 (410) 150 (492)

1450 34 (111) 81 (266) 99 (325) 120 (394)

1700 31 (102) 74 (243) 91 (299) 111 (364)

1750 31 (102) 73 (240) 89 (292) 109 (358)

Block Up Converter Systems 6700/6900 series User Guide 33

Installation

IF levels

The figures and tables in this section show the single carrier IF levels required to achieve rated P1dB output power from the BUC using various types and lengths of IF cables. Your actual IF levels may be different from those shown if you are operating with multiple carriers and you require output back off to control intermodulation product levels.

Examples are provided for short cables (with a 3 dB loss) and long cables (with a 20 dB loss).

The figures in this section are provided as examples only. You should determine the loss of your selected cable from its length and your operating frequency (see Table 10 on

page 33). You can then set the modem IF output level and the

BUC attenuator to achieve the required output power.

As a general principle, you should set the BUC attenuator at the highest possible attenuation setting given the available modem IF output power and the cable loss. This reduces the susceptibility of the system to external interference.

34 Block Up Converter Systems 6700/6900 series User Guide

Installation

Using short IF cables

Figure 11 shows the IF levels required when using short IF

cables such as the following:

• 5 m RG223

• 12 m 9914

• 15 m 9913F

•18m LMR-400

Figure 11: IF levels required for short cables

BUCIF cableModem

Gain

Input/output

level

Refer to the relevant specifications sheets for the detailed specifications for your BUC

Block Up Converter Systems 6700/6900 series User Guide 35

16 dBm 19 dBm

3 dB

BUC gain 

attenuator

setting

19 dBm +

(BUC gain 

attenuator setting)

Installation

Using long IF cables

Figure 12 shows the IF levels required when using long IF

cables such as the following:

• 34 m RG223

• 80 m 9914

• 100 m 9913F

• 120 m LMR-400

Figure 12: IF levels required for long cables

BUCIF cableModem

Gain

Input/output

level

Refer to the relevant specifications sheets for the detailed specifications for your BUC

36 Block Up Converter Systems 6700/6900 series User Guide

7 dBm 27 dBm

20 dB

BUC gain 

attenuator

setting

27 dBm +

(BUC gain 

attenuator setting)

Serial interfaces

The following serial interfaces are provided:

• RS232 and RS422/485 available on the M/C connector

on the BUC

• FSK available on the IF INPUT connector on the BUC

RS232 interface

The RS232 serial interface supports both the ASCII and the Codan packet protocols simultaneously. Responses to commands are returned in the same protocol format as they are sent. The RS232 serial interface operates with the following parameters:

data rate 9600 bps

word length 8 bits

parity none

Installation

stop bit 1

The fixed data rate and protocol simplifies the connection during installation and commissioning, and enables a PC running a terminal-emulation program to be used to configure the BUC. For information on protocols, contact your Codan representative.

The BUC is able to detect the connection of an RS232 interface. When an RS232 interface is used, the BUC inhibits the use of the Set and Reset commands on the RS422/485 and FSK interfaces. View and Output commands can still be used on these interfaces. This functionality is provided for safety reasons.

If you disabled transmission, don’t forget to

NOTE

Block Up Converter Systems 6700/6900 series User Guide 37

re-enable it before you remove the RS232 connection.

Installation

For example, a technician working on a BUC at the antenna can make an RS232 connection and disable transmissions. Transmissions cannot be re-enabled at another source, but the other interfaces can still monitor the BUC parameters. When the RS232 connection is removed and transmission is restored using the RS232 interface, normal monitor and control operation is restored.

RS422/485 interface

The RS422/485 interface can be operated in either 2-wire or 4-wire mode. The RS422/485 interface enables monitor and control of the BUC over long distances using other protocols that are not available for use with the RS232 interface.

FSK interface

The FSK interface enables monitor and control of the BUC over long distances using other protocols that are not available for use with the RS232 interface. The FSK interface does not require an extra monitor and control serial cable, but does require a modem with FSK monitor and control capability. If an appropriate modem is not available, contact your Codan representative to find out what accessories are available to access the FSK interface.

38 Block Up Converter Systems 6700/6900 series User Guide

Connecting the serial interface

To set the operating parameters of the BUC, the BUC must be connected to a terminal (for example, a Hand-held Controller 6560, a Remote Controller 6570, a PC, or an organiser emulating a terminal).

The connection may be permanent as part of the installation or temporary for the purpose of setting the operating parameters of the BUC.

Permanent interface connection

A permanent interface connection can be provided via the monitor and control interface of the BUC (see Figure 13 on

page 41). The RS232 serial interface may only be used for

distances less than 15 m. The RS422/485 serial interface may be used for distances up to approximately 1 km.

The Remote Controller 6570 is designed as a permanent interface connection and is supplied with a standard 50 m cable.

Installation

Temporary interface connection

A serial interface cable is available to connect the BUC to the RS232 serial port of a PC or an organiser emulating a terminal, or you may connect a Hand-held Controller 6560.

If using a PC, connect the cable between the M/C connector of the BUC and the serial port of the PC. This cable provides a 14-way female MS-style connector to 9-way D-type female connector for connection to the PC. If connection to a 25-way D-type serial port is required, use a standard 25-way female to 9-way male adaptor.

Block Up Converter Systems 6700/6900 series User Guide 39

Installation

Monitor and control interface of the BUC

The monitor and control interface of the BUC provides a relay contact to indicate the fault status of the BUC. See Figure 13 for the pin assignments of the M/C connector. A MIL-C-26482 12-14P connector (for example, MS3116F12-14P) is required to mate with the M/C connector.

40 Block Up Converter Systems 6700/6900 series User Guide

Installation

Figure 13: Monitor and control interface of the BUC

+2.5 V

+10 V

+5 V

+12 V

1 k

10 k

+5 V

1 k

+5 V

120

+10 V DC (nominal) output (150 mA max.)

0 V

RS422/485 Rx+

RS422/485 Rx

RS422/485 Tx+/Rx+ (RS422/485 TxB/RxB)

RS422/485 Tx/Rx (RS422/485 TxA/RxA)

Not connected

RS232 RxD

RS232 TxD

Summary Alarm (open on alarm 30 V @ 1 A max.)



Block Up Converter Systems 6700/6900 series User Guide 41

1k5

+5 V

LNB Fault

Redundancy Controller Fault

On-line Input/Output

*Bus termination resistors

Installation

Installing the redundancy system

Mounting the redundancy controller

The redundancy controller has two mounting flanges. Each flange has 10 mounting holes. If you are going to use the mounting kit supplied, fitting instructions are provided in the kit.

Mount the redundancy controller upright on or near the antenna structure. A protected position is preferable however, the redundancy controller can withstand exposure to outdoor conditions.

Installing separate transmit and receive RF waveguide switches

WARNING

Transmit RF waveguide switch

To install the transmit RF waveguide switch (BUC switch):

Handle the switches with care. They are easily damaged.

1 Connect ports 1 and 3 of the transmit RF waveguide

switch to the BUC outputs using the waveguide sections and flange kits as shown in the mounting drawings.

NOTE

42 Block Up Converter Systems 6700/6900 series User Guide

In C-Band installations, use the appropriate flange kit.

In Ku-Band installations, ensure the appropriate o-ring is used, otherwise sealing will be compromised or correct mating of the waveguide flanges will not be possible.

Installation

1 Connect port 2 of the transmit RF waveguide switch to

the transmit flange of the antenna feed using gasket kits and rigid or flexible waveguide as appropriate.

If connecting the Ku-Band transmit RF waveguide switch to a waveguide section

NOTE

that has clearance holes for 6-32 UNC hardware, a waveguide adaptor kit is available.

1 Connect the off-line BUC load to port 4 of the transmit

RF waveguide switch as shown in the mounting drawings.

CAUTION

NOTE

Ensure all joints are completely weatherproof.

Spare flange kits are provided with the redundancy package. The universal Ku-Band flange kit contains a selection of flat gaskets and circular cross-section gaskets (both large and small cross-sectional diameter).

1 In transmit-only systems, fit the transmit-only connector

assembly to the LNB Switch Control connector.

1 Connect the transmit RF waveguide switch to the BUC

Switch Control connector using the cable supplied.

Block Up Converter Systems 6700/6900 series User Guide 43

Installation

Receive RF waveguide switch (transmit/receive systems only)

To install the receive RF waveguide switch (LNB switch):

1 Fit the TRF (if used) to the receive port of the antenna

feed using the appropriate flange kit for C-Band and Ku-Band, selecting the correct gasket.

1 Hold waveguide port 2 of the receive RF waveguide

switch against the receive port of the antenna feed or TRF (if fitted). Decide which way the switch is to face.

1 For Ku-Band installations, attach the 2" rigid WR75

waveguide sections to ports 1 and 3 of the receive RF waveguide switch using the appropriate flange kit.

1 Attach the LNBs to:

• ports 1 and 3 of the receive RF waveguide switch using

the appropriate flange kit for C-Band

• the 2" rigid waveguide sections using the appropriate

flange kit for Ku-Band

For Ku-Band installations, ensure the appropriate o-ring is used, otherwise

NOTE

sealing will be compromised or correct mating of the waveguide flanges will not be possible.

1 Clamp the gaskets tightly to ensure perfect seals. 1 If the blanking plate was not factory fitted, attach it to

port 4 of the receive RF waveguide switch using the appropriate flange kit.

1 If you want to allow for dry air pressurisation, fit the

supplied air nozzle to the blanking plate. If this is not required, fit the M5 screw with seal into the blanking plate.

1 Attach the receive RF waveguide switch to the receive

port of the antenna feed using the appropriate flange kit.

44 Block Up Converter Systems 6700/6900 series User Guide

Installation

If connecting the Ku-Band receive RF waveguide switch to a receive port of the antenna feed that has clearance holes for 6-32 UNC hardware, a waveguide adaptor kit is available.

NOTE

1 Connect the receive RF waveguide switch to the LNB

Switch Control connector using the cable supplied.

Installing the combined RF waveguide/coaxial switch (C-Band transmit/receive systems only)

WARNING

To install the combined RF waveguide/coaxial switch:

Handle the switch with care. It is easily damaged.

1 Fit the TRF (if used) to the receive port of the antenna

feed using the appropriate flange kit.

1 Hold waveguide port 2 of the combined RF

waveguide/coaxial switch against the antenna receive feed. Decide which way the switch is to face.

1 Attach the LNBs to ports 1 and 3 of the RF waveguide

section of the switch using the appropriate flange kit.

1 Clamp the gaskets tightly to ensure perfect seals. 1 If the blanking plate was not factory fitted, attach it to

port 4 of the waveguide section of the switch using the appropriate flange kit (see the mounting and interconnection drawings).

Block Up Converter Systems 6700/6900 series User Guide 45

Installation

1 If you want to allow for dry air pressurisation, fit the

supplied air nozzle to the blanking plate. If this is not required, fit the M5 screw with seal into the blanking plate.

1 Connect the off-line BUC termination to port 4 of the

coaxial section of the switch as shown in the mounting and interconnection drawings.

NOTE

In some configurations, the termination consists of multiple parts.

1 Connect the outputs of the BUCs to the corresponding

N-type connectors of the coaxial section of the switch using the coaxial cables supplied.

1 Connect port 2 of the coaxial section of the switch to the

transmit port of the antenna feed using the coaxial cable supplied.

1 Seal all N-type connections with self-amalgamating tape.

CAUTION

NOTE

Ensure all joints are completely weatherproof.

Spare flange kits are supplied with the redundancy package to provide for various installation requirements.

1 Connect the combined RF waveguide/coaxial switch to

the LNB Switch Control connector using the cable supplied.

NOTE

The BUC Switch Control connector is not used in this configuration.

46 Block Up Converter Systems 6700/6900 series User Guide

Connecting the power cables

The redundancy controller is AC mains powered.

To connect the power cable to the redundancy controller:

1 Connect the supplied cable to the AC Power Input

connector on the redundancy controller.

Installation

Block Up Converter Systems 6700/6900 series User Guide 47

Installation

Connecting the control cables

To connect the control cables:

1 Connect the BUC 1 Control connector and the BUC 2

Control connector on the redundancy controller to the

corresponding M/C connector on each BUC using the control cables supplied.

For high-power BUC systems, connect the BUC 1 Control connector and the BUC 2 Control connector on the redundancy controller to the corresponding

M/C connector on each BUC and the corresponding CONTROL connector on each high-power SSPA using

the specific control cables supplied.

Connecting the IF from the redundancy controller to the BUCs

To connect the IF cables:

1 Connect the Tx IF Output 1 connector and the Tx IF

Output 2 connector on the redundancy controller to the

corresponding IF INPUT connector on each BUC using the coaxial cables supplied.

Connecting the IF cables between an L-Band IF modem (or other equipment) and the redundancy controller

To connect the IF cables:

1 Connect the transmit IF output connector on the L-Band

IF modem (or other equipment) to the Tx IF Input connector on the redundancy controller using a suitable coaxial cable.

1 In systems other than transmit-only, connect the receive

IF input connector on the L-Band IF modem (or other equipment) to the Rx IF Output connector on the redundancy controller using a suitable coaxial cable.

48 Block Up Converter Systems 6700/6900 series User Guide

Connecting the IF from the LNBs to the redundancy controller

To connect the IF cables:

1 Connect the corresponding N-type IF output connector

on each LNB to the Rx IF Input 1 connector and the Rx IF Input 2 connector on the redundancy controller using

the coaxial cable supplied.

Grounding the installation

To ground the installation:

1 Connect a separate earth strap from the protective earth

terminal on each unit directly to the common earth stake.

Installation

Block Up Converter Systems 6700/6900 series User Guide 49

Installation

Serial interfaces of the BUCs from the redundancy controller

The M/C connector on each BUC includes the serial interface of the BUC. Although the redundancy controller plugs into this connector, the redundancy controller uses relay contacts to communicate with the BUC.

You can access the serial interface of each BUC via the 14-way BUC 1 Serial or BUC 2 Serial connector on the redundancy controller. These connectors are suitable for temporary connection of a PC or Hand-held Controller 6560 as they have the same RS232 serial pin connections as the M/C connector on the BUC.

The RS485 serial interfaces for both BUCs are included in the 19-way Auxiliary I/O connector interface of the redundancy controller for remote monitor and control applications via the Remote Controller 6570.

50 Block Up Converter Systems 6700/6900 series User Guide

Installation

Accessing the Auxiliary I/O interface on the redundancy controller

Remote control and monitoring of the redundancy switching system is accessible via the 19-way Auxiliary I/O connector on the redundancy controller.

To use this 19-way connector, you need a 19-way Mil-C-26482 series plug, part number MS3116J14-19P.

Figure 14 on page 52 shows the monitor and control interface

at the Auxiliary I/O connector of the redundancy controller. Contacts are shown in their de-energised state.

Relay contacts indicate the following faults and operational status of the redundancy system (the four relay contacts share a common contact connection):

• Stream 1 Fault

• Stream 2 Fault

• Stream Selected

• Redundancy Controller Fault

Inputs are provided to allow remote control via contact closures:

• control source

• Auto or Manual Mode

• stream selection

The RS485 connections parallel the two BUC RS485 interfaces to enable remote control of both BUCs using a Remote Controller 6570, or using serial commands with a PC running terminal-emulating software.

Block Up Converter Systems 6700/6900 series User Guide 51

Installation

Figure 14: Auxiliary I/O interface of the redundancy controller

BUC 1

BUC 2

Alarm contacts

open on fault

+12 V

250 mA

+12 V

3k3

+12 V

3k3

+12 V

3k3

+12 V

GND

Rx Data A (RS422/485)

Rx Data B (RS422/485)

Tx Data A (RS422/485)

Tx Data B (RS422/485)

Stream 1 Fault

Stream 2 Fault

Redundancy Controller

Relay Common

(open = Stream 1)

Remote

Control

Mode

Stream

Fault

Stream Selected

Disable

Enable

Auto

Manual

Stream 1

Select

Stream 2

52 Block Up Converter Systems 6700/6900 series User Guide

Setting up the redundancy switching equipment

To set up the redundancy switching equipment:

1 Set the AC voltage selector on the control panel of the

redundancy controller to the appropriate voltage for your operating environment.

1 Switch on the modem(s), then switch off the carrier(s). 1 Apply power to the redundancy controller and the BUCs. 1 Connect a Hand-held Controller 6560 to the BUC 1

Serial connector, then to the BUC 2 Serial connector on the redundancy controller, and set the following parameters:

Parameter Menu Setting

Tx state Control Tx off (initially)

Installation

Redundancy mode

IF comp freq/RF comp freq

Tx attenuation Main

LO Auxiliary

Tx default Auxiliary

Block Up Converter Systems 6700/6900 series User Guide 53

Auxiliary Hot standby

(preferred) Warm standby

Main Both BUCs must

have the same settings

Installation

Parameter Menu Setting

Serial parity Auxiliary For information on

Serial stop bits Auxiliary

RS485 termination

Serial protocol Auxiliary

Serial address Auxiliary

Serial echo Auxiliary

Auxiliary

the required serial parameters for a Remote Controller 6570 see the Hand-held and

Remote Controller 6560/6570 User Guide

1 Set the Online state of the required BUC to Online. 1 Set the Tx state of both BUCs to Tx on.

If the Redundancy mode is Warm

NOTE

standby, the output from the power amplifier in the off-line BUC is not enabled.

High-power SSPAs in a high-power BUC system must be configured for stand-alone

NOTE

The control panel of the redundancy controller shows the stream selection states. All fuse LEDs and BUC/LNB LEDs should be green.

NOTE

54 Block Up Converter Systems 6700/6900 series User Guide

use in BUC stream redundancy. For more information on high-power systems see the relevant SSPA documentation.

In transmit-only systems, the LNB fuse LEDs remain green and the LNB 1 and LNB 2 LEDs are always off.

In C-Band systems that use a combined RF waveguide/coaxial switch, the BUC 1 and

BUC 2 LEDs are always off.

Connecting the remote controller

The optional Remote Controller 6570 is connected to the Auxiliary I/O connector on the redundancy controller using a 19-way cable.

Before connecting a Remote Controller 6570, you should ensure that the serial address and packet protocol in each BUC has been set up

NOTE

To connect the remote controller:

correctly using a Hand-held Controller 6560, or other serial device such as a PC. For more information see the Hand-held and Remote Controller 6560/6570 User Guide.

1 Plug the 25-way D-type socket on the 19-way cable into

the BUC Interface connector on the rear of the remote controller.

1 Plug the 19-way MS plug on the 19-way cable into the

Auxiliary I/O connector on the redundancy controller.

Installation

Block Up Converter Systems 6700/6900 series User Guide 55

Installation

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56 Block Up Converter Systems 6700/6900 series User Guide

3 Setting up and operating the

BUC system

This section contains the following topics:

Switching on the BUC (58)

LED indicators (59)

Serial interface monitor and control (62)

Serial interface commands (63)

Switching the redundancy system on and off (76)

Checking the operation of the LED indicators and controls (76)

Switching between streams (76)

Controlling the redundancy system (78)

CODAN

Block Up Converter Systems 6700/6900 series User Guide 57

Setting up and operating the BUC system

Switching on the BUC

Ensure that the modem provides the correct DC

CAUTION

To switch on the BUC:

voltages to power the particular BUC and LNB models being used.

1 Switch on the modem, and if you have installed an

externally-powered BUC, switch on the power to the BUC.

1 If you need to set up the BUC, switch off the carrier at

the modem.

Connect the BUC to a PC (see page 39, Connecting the

serial interface), then set up the BUC using the Set

commands in Table 14 on page 65.

Switch on the carrier at the modem.

58 Block Up Converter Systems 6700/6900 series User Guide

Setting up and operating the BUC system

LED indicators

There are three LED indicators on the BUC. These LEDs indicate the state of the BUC (see Table 11).

Table 11: LED indicators on the BUC and their states

LED State Indicates...

PWR Green Power is supplied to the BUC

Tx Yellow The BUC PA is on

FLT Off No faults or latched faults are present

Constant red One or more of the following hardware faults have

been detected in the BUC:

• overtemperature fault (> 90°C)

• PA fault

• LO fault

• fan fault

• output power threshold

• hardware/firmware incompatibility

For information on fault finding see page 81,

Maintenance and fault finding

Flashing red (2 flashes every second)

Flashing red (1 flash every 2 seconds)

NOTE Use the VFS command to view the fault status.

Block Up Converter Systems 6700/6900 series User Guide 59

One or more of the following faults have been detected in the system:

• an external fault in the LNB (when in redundancy configuration only)

• an external fault in the redundancy controller (when in redundancy configuration only)

• a non-volatile memory fault in the BUC

The fault information from a latched fault has been stored, however the fault is no longer present (firmware V1.10 or earlier)

Setting up and operating the BUC system

The control panel of the redundancy controller has groups of LEDs that indicate the status of the redundancy system and its fuses.

Table 12: LED indicators on the control panel of the redundancy controller

LED Colour Indicates...

BUC 1 green BUC 1 is OK

In a high-power BUC system, the BUC and high-power SSPA in Stream 1 are OK

red BUC 1 or LNB 1 is faulty

In a high-power BUC system, the BUC, highpower SSPA or LNB in Stream 1 is faulty

BUC 2 green BUC 2 is OK

In a high-power BUC system, the BUC and high-power SSPA in Stream 2 are OK

red BUC 2 or LNB 2 is faulty

In a high-power BUC system, the BUC, highpower SSPA or LNB in Stream 2 is faulty

LNB 1 green LNB 1 is OK

red LNB 1 is faulty

LNB 2 green LNB 2 is OK

red LNB 2 is faulty

BUC Switch green BUC transmit waveguide switch is OK (LED

pairs indicate switch position)

red Switch is faulty (all four LEDs are red)

LNB Switch green LNB receive waveguide or combined

transmit/receive switch is OK (LED pairs indicate switch position)

red Switch is faulty (all four LEDs are red)

60 Block Up Converter Systems 6700/6900 series User Guide

Table 12: LED indicators on the control panel of the redundancy controller (cont.)

LED Colour Indicates...

Setting up and operating the BUC system

Redundancy Controller Status

green Redundancy system and switches are OK

red Redundancy system is faulty or switches are

inconsistent

Remote Controller fuse

BUC 1/BUC 2

green Remote controller fuse OK

red Remote controller fuse has blown

green BUC 1 or BUC 2 fuse is OK

fuse

red BUC 1 or BUC 2 fuse has blown

LNB 1/LNB 2 fuse green LNB 1 or LNB 2 fuse is OK

red LNB 1 or LNB 2 fuse has blown

The LNB 1, LNB 2 and LNB Switch LEDs

NOTE

are fitted, but not operational in transmit-only systems.

Block Up Converter Systems 6700/6900 series User Guide 61

Setting up and operating the BUC system

Serial interface monitor and control

To view or change the operating parameters of the BUC, the BUC must be connected to a terminal (for example, a Handheld Controller 6560, a Remote Controller 6570, a PC, or an organiser emulating a terminal).

To establish communications between the PC and the BUC see

page 39, Connecting the serial interface.

For more advanced remote control applications, contact your Codan representative.

The BUC is monitored and controlled using 3-letter operating commands followed, in some cases, by data. These commands are described in Table 13 to Table 17.

The commands listed in Table 13 to Tab le 17 are used with common installations. If you have

NOTE

other requirements for your installation, contact your Codan representative for the facilities and commands available.

62 Block Up Converter Systems 6700/6900 series User Guide

Setting up and operating the BUC system

Serial interface commands

This section describes the serial interface commands you can use to set parameters and display information about the BUC. The descriptions given are based on using ASCII protocol.

The commands consist of a 3-letter mnemonic and, in some cases, command data.

Generally, the first letter of the command determines the type of command (that is, H = Help, S = Set, O = Output, V = View, R = Reset) and the last two letters uniquely define the command.

The BUC is insensitive to the case of the command text.

For example output of a command set see

NOTE

For the... See...

page 115, Example outputs for the View commands.

Help commands Table 13 on page 64

Set commands Table 14 on page 65

Output commands Table 15 on page 72

View commands Table 16 on page 73

Reset commands Table 17 on page 74

Block Up Converter Systems 6700/6900 series User Guide 63

Setting up and operating the BUC system

Table 13: Help commands

Command Function Enter... Data required

Help Lists the Help commands. HLP None

Help for Set commands

Help for Output commands

Help for Vie w commands

Help for Reset commands

Lists the Set commands and

HSC None

the possible settings.

Some settings are

NOTE

dependent on the model of the BUC, or another setting.

Lists the Output commands. HOC None

Lists the View commands. HVC None

Lists the Reset commands. HRC None

64 Block Up Converter Systems 6700/6900 series User Guide

Setting up and operating the BUC system

Table 14: Set commands

Command Function Enter... Data required

Set transmit onSwitches transmit on or off

by controlling the PA of the BUC.

To switch on the PA, all three serial interfaces (RS232, RS422/485 and FSK) must be set to STO1. STO1 is the default setting for all of the serial interfaces.

A built-in safety feature only allows transmit to be switched on via the interface that was used to switch it off originally.

STO1 cannot be used to switch on transmit if an internal fault has occurred in the BUC.

For CE-certified operation you must set the transmit default state to Off (STD0). When

NOTE

STD0 is used (see

page 69, Set

transmit default),

you must use STO1 after powerup to switch transmit on.

STOn n = 0, switches transmit off

n = 1, switches transmit on

Block Up Converter Systems 6700/6900 series User Guide 65

Setting up and operating the BUC system

Table 14: Set commands (cont.)

Command Function Enter... Data required

Set compensation frequency

Sets either the IF or RF compensation frequency of the carrier in MHz.

The BUC determines from the value entered whether you have set the IF or RF compensation frequency, and calculates the corresponding RF or IF compensation frequency.

The IF or RF compensation frequency range is dependent on the model of the BUC and the LO setting.

The BUC uses the specified RF frequency for the internal temperature compensation and other calibration functions. It does not affect the carrier frequency.

If the carrier frequency is unknown, set the IF or RF compensation frequency to zero.

If multiple carriers are being transmitted and the frequency is limited to a narrow band (for example, over one transponder), set the IF or RF compensation frequency to the nominal centre frequency of the operating band.

SCFn For C-Band Standard and

Extended frequency band BUCs:

LO = 7300 MHz IF: 950 RF: 5850

LO = 7375 MHz IF: 950 RF: 5850

LO = 7600 MHz IF: 950 RF: 5850

LO = 7675 MHz IF: 950 RF: 5925

For Ku-Band Standard and Extended frequency band BUCs:

LO = 15450 MHz IF: 950 RF: 13750

LO = 15450 MHz IF: 950 RF: 14000

Use n = 0 for broadband operation (this forces broadband calibration data to be used)

≤ n ≤ 1450

≤ n ≤ 6350

≤ n ≤ 1525

≤ n ≤ 6425

≤ n ≤ 1750

≤ n ≤ 6650

≤ n ≤ 1750

≤ n ≤ 6725

≤ n ≤ 1700

≤ n ≤ 14500

≤ n ≤ 1450

≤ n ≤ 14500

66 Block Up Converter Systems 6700/6900 series User Guide

Setting up and operating the BUC system

Table 14: Set commands (cont.)

Command Function Enter... Data required

Set transmit attenuator

Set transmit power alarm threshold

Sets the transmit attenuator of the BUC in dB.

To minimise the possible effects of interference it is preferable to have a high transmit attenuation and a high IF level from the modem. Therefore, the BUC attenuator should be set as high as possible, consistent with the required BUC output power, transmit IF cable loss and maximum IF output level capability of the modem.

Sets the transmit power alarm threshold in dBm.

The allowable threshold range depends upon the model of the BUC. Use VLD to display the upper and lower limits of the allowable range for your BUC (see

page 73, View limit data).

STAn n = 0 to 12 dB

Certain firmware versions allow 4 dB steps, while other firmware versions allow 1 dB steps.

SATn n = value within the

allowable threshold range for your BUC

n = 0, disables the transmit power alarm

If the transmit power falls below the set threshold, a transmit power alarm is generated.

Block Up Converter Systems 6700/6900 series User Guide 67

Setting up and operating the BUC system

Table 14: Set commands (cont.)

Command Function Enter... Data required

Set burst mode power threshold

Sets the burst mode power threshold in dBm.

When you set a new burst mode power threshold, the current, minimum and

NOTE

maximum burst power readings are reset to zero (see page 72,

Output burst powers).

You can set the threshold level above which transmitted TDMA bursts or similar signals are recorded.

The allowable threshold range depends upon the model of the BUC. Use VLD to display the upper and lower limits of the allowable range for your BUC (see

page 73, View limit data).

SBTn n = value within the

allowable threshold range for your BUC

n = 0, disables burst detection

68 Block Up Converter Systems 6700/6900 series User Guide

Setting up and operating the BUC system

Table 14: Set commands (cont.)

Command Function Enter... Data required

Set local oscillator

Set transmit default

Sets the LO frequency in MHz.

Before you change the LO setting you

NOTE

should switch off transmission using STO0.

It is not necessary to use SLOn with

NOTE

Ku-Band BUCs as they only have one LO frequency.

Sets the default transmit state at powerup.

For CE-certified operation you must set the transmit default state to Off

NOTE

(STD0). When STD0 is used you

must use STO1 after powerup to switch transmit on (see page 65, Set

transmit on).

SLOn For C-Band Standard

frequency range BUCs:

n = 7300 or 7375 MHz

For C-Band Extended frequency band BUCs:

n = 7300, 7375, 7 600 or 7675 MHz

STDn n = 0, keeps transmit off

(that is, PA off) at powerup

n = 1, returns to transmit state prior to last powerdown

Set redundant mode

Sets the BUC to operate in a redundancy system.

For a system without

NOTE

redundancy you must always set

SRMn n = 0, system without

redundancy

n = 1, warm standby system

n = 2, hot standby system

the redundant mode to zero.

Block Up Converter Systems 6700/6900 series User Guide 69

Setting up and operating the BUC system

Table 14: Set commands (cont.)

Command Function Enter... Data required

Set on line Sets the on-line or off-line

state of the BUC in a warm standby or hot standby redundant system, that is, SRM1 or SRM2 has been set.

If a BUC is forced off line when the alternative BUC in the redundancy system is faulty,

NOTE

the redundancy system automatically switches the nonfaulty BUC back on line.

Set serial interface

Sets the data format of the RS422/485 and FSK serial interfaces.

The data format for these interfaces cannot be set independently.

This command can only be used on the RS232 port.

SOLn n = 0, forces the selected

BUC off line

n = 1, forces the selected BUC on line

SSIr,w, p,s,t

r = baud rate (1200, 2400, 4800, 9600, 19 200)

w = word length in bits (7 or 8)

p = parity N/n (none), E/e (even), O/o (odd)

s = number of stop bits (1 or 2)

t = RS422/485 bus terminated or unterminated (T/t, U/u)

70 Block Up Converter Systems 6700/6900 series User Guide

Setting up and operating the BUC system

Table 14: Set commands (cont.)

Command Function Enter... Data required

Set packet protocol

Set packet address

Set echo Switches the echoing of

Sets the packet protocol used on the RS422/485 and FSK serial interfaces.

The packet protocols for these interfaces cannot be set independently.

This command can only be used on the RS232 port.

Sets the packet address.

The packet address range depends on the packet protocol selected (see

page 71, Set packet

protocol).

For information on protocols, contact your Codan representative.

characters on or off in ASCII protocol mode on the RS232 interface only.

SPPn n = 0, ASCII protocol

n = 1, Codan protocol

n = 2, SAbus protocol

n = 3, Comstream protocol

n = 4, NDSatcom protocol

SADn 1

SECn n = 0, disables echoing

≤ n ≤ 126, Codan

protocol

≤ n ≤ 111, SAbus

protocol

≤ n ≤ 31, Comstream

protocol

≤ n ≤ 15, NDSatcom

protocol

n = 1, enables echoing

Echo is always off on the FSK and RS422/485 interfaces.

Block Up Converter Systems 6700/6900 series User Guide 71

Setting up and operating the BUC system

Table 15: Output commands

Command Function Enter... Data required

Output power output

Output burst powers

Displays the RF power output of the BUC in dBm.

If the output power is less than the lower limit, 0.0 dBm is displayed.

If the output power is greater than the upper limit,

99.9 dBm is displayed.

Displays the current, minimum and maximum burst output powers of the BUC in dBm.

If the burst power is less than the lower limit, 0.0 dBm is displayed.

If the burst power is greater than the upper limit,

99.9 dBm is displayed.

OPO None

OBP None

72 Block Up Converter Systems 6700/6900 series User Guide

Setting up and operating the BUC system

Table 16: View commands

Command Function Enter... Data required

View system status

Vie w operational data

Vie w f ault status

View identity and configuration data

View limit data

Displays the status and parameter settings of the BUC.

Displays the operational data of the BUC.

Displays the fault status of the BUC. In a transmit/receive redundancy system it also displays the fault status of the LNB and the redundancy controller. It displays both current faults and latched faults (that is, faults that have previously occurred but may have cleared).

Displays the identification and configuration data of the BUC.

Displays the frequency and power ranges for the BUC.

VSS None

VOD None

VFS None

VID None

VLD None

Vie w protocol data

Vie w b uild standard data

Block Up Converter Systems 6700/6900 series User Guide 73

Displays the serial interface protocol information.

Displays the build standard information of the BUC.

VPD None

VBS None

Setting up and operating the BUC system

Table 17: Reset commands

Command Function Enter... Data required

Reset Resets the BUC settings to the settings

at powerup (that is, it has the same effect as switching the power off then on again). The maximum and minimum readings for the burst mode power are cleared, the LO synthesiser is reloaded and, if the transmit default state is set to off, the PA of the BUC is switched off.

Reset latched faults

Reset to default values

Clears all latched faults except those that are still current.

Resets the parameters that are changed via the Set commands to their factory default settings.

If you have a C-Band BUC, you should switch off the carrier at the modem before using this command. This

NOTE

prevents transmission on an undesired frequency. When you have reset the LO frequency, switch transmission on.

RST None

RLF None

RDV None

The default settings are:

transmit on (for RS232,

RS422/485 and FSK)

RF compensation

0MHz

frequency

IF compensation

0MHz

frequency

transmit attenuator 12 dB

74 Block Up Converter Systems 6700/6900 series User Guide

Setting up and operating the BUC system

Table 17: Reset commands (cont.)

Command Function Enter... Data required

Reset to default values (cont.)

output power

0dBm (off)

threshold

burst mode power

0dBm (off)

threshold

LO frequency C-Band:

7375 MHz Ku-Band: 15450 MHz

transmit default PA returns to

transmit state prior to powerdown

redundant mode non-redundant

mode

serial interface 9 600 baud

8 bits no parity 1 stop bit unterminated RS422/485 bus

packet protocol NDSatcom

protocol

packet address 1 for Codan

49 for SAbus 1 for Comstream 1 for NDSatcom

echo on

Block Up Converter Systems 6700/6900 series User Guide 75

Setting up and operating the BUC system

Switching the redundancy system on and off

When you power up the redundancy controller, the redundancy switching system resumes operation using the current state of the switches.

You can switch off the redundancy switching system at any time by simply switching off the redundancy controller at the AC mains supply. In some BUC systems, the BUCs are also powered down.

Checking the operation of the LED indicators and controls

The redundancy controller has 18 indicators on the internal control panel (see Figure 9 on page 18 and Table 12 on

page 60).

Switching between streams

The redundancy controller enables automatic and manual switching of streams.

The redundancy controller automatically switches streams when it receives an alarm from the on-line stream. The redundancy controller always switches transmit and receive paths together.

You can manually force the system to switch between Stream 1 and Stream 2.

76 Block Up Converter Systems 6700/6900 series User Guide

Setting up and operating the BUC system

Operating the redundancy system

If you are not using the contact closure inputs on the Auxiliary I/O connector, the redundancy controller runs automatically. You can manually switch streams by setting the Online state of a BUC using a Hand-held Controller 6560 or a PC connected to the BUC 1 Serial or BUC 2 Serial connectors, or a Remote Controller 6570 connected to the Auxiliary I/O connector.

If you want to exert external control via the contact closures on the Auxiliary I/O connector (see Figure 14 on page 52) you must:

1 Ground pin J.

This enables remote control.

1 Select Manual Mode by grounding pin N, or select Auto

Mode by not grounding pin N.

1 If Manual Mode was selected in the previous step, then

you may select Stream 2 by grounding pin G, or select Stream 1 by not grounding pin G.

NOTE

Block Up Converter Systems 6700/6900 series User Guide 77

External stream selection in Manual Mode is independent of any faults.

Setting up and operating the BUC system

Controlling the redundancy system

For correct operation of the redundancy system, both BUCs must be switched on.

To switch on the BUCs:

1 Switch on the modem, and if you have installed an

externally-powered BUC system, switch on the power to the BUC.

The standby state of the off-line BUC is dependent on how the Redundancy mode is set. The off-line BUC can be set to two states:

• power amplifier on (hot standby system)

• power amplifier off (warm standby system)

NOTE

Hot standby

In hot standby, the power amplifier of each BUC is activated ready for immediate use. A hot standby system has greater power consumption than any other redundancy system configuration.

To set the BUCs to operate in hot standby:

In a high-power BUC system, the high-power SSPA is always activated.

1 Set the Redundancy mode to Hot standby using a

Hand-held Controller 6560, a Remote Controller 6570, or serial commands on a PC running terminal-emulating software.

78 Block Up Converter Systems 6700/6900 series User Guide

Setting up and operating the BUC system

Codan recommends that you set the

Redundancy mode of both BUCs to Hot standby. This keeps the off-line

stream in hot standby ready for immediate

NOTE

Warm standby

In warm standby, only the power amplifier of the on-line BUC is activated. This provides a lower power consumption than the hot standby system. The power amplifier of the off-line BUC is automatically activated when the stream switches to on line.

To set the BUCs to operate in warm standby:

operation. It also enables detection of faults in the power amplifier of the off-line BUC through the normal fault detection system, or via the transmit power alarm threshold facility.

1 Set the Redundancy mode to Warm standby using

a Hand-held Controller 6560, a Remote Controller 6570, or serial commands on a PC running terminal-emulating software.

Block Up Converter Systems 6700/6900 series User Guide 79

Setting up and operating the BUC system

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80 Block Up Converter Systems 6700/6900 series User Guide

4 Maintenance and fault

finding

This section contains the following topics:

Precautions (82)

If technical assistance is required... (84)

Finding faults in the BUC system (85)

Finding faults in the redundancy switching equipment (100)

Finding faults in the remote controller (109)

CODAN

Block Up Converter Systems 6700/6900 series User Guide 81

Maintenance and fault finding

Precautions

Connections to power supplies

In general, exposed connector pins do not carry DC supply voltages.

WARNING

Servicing requirements

If you find that any module is faulty, contact your Codan representative or Codan customer service staff. Before returning goods to Codan you must obtain an RMA to authorise the return of your goods.

WARNING

RF waveguide switches

WARNING

Care should be taken at all times to avoid short circuiting connector pins.

Do not attempt to repair the module as you may cause further faults and void the manufacturer’s warranty.

Handle all RF waveguide switches with care. They are easily damaged.

It is critical to weatherproof waveguide and control joints for long-term switch reliability.

The RF waveguide switch is a precision microwave electromechanical assembly. Do not attempt to repair it yourself. Return all faulty RF waveguide switches to Codan for repair.

82 Block Up Converter Systems 6700/6900 series User Guide

Maintenance and fault finding

Fuses and overcurrent protection in the Redundancy Controller 6586

Table 18 lists the types of fuses on the control panel of the

redundancy controller and the device protected. For information on changing fuses see page 102, Replacing fuses

in the redundancy controller.

Table 18: Fuses in the redundancy controller

Label Type Protects...

BUC 1/BUC 2 Delay 20 × 5 mm, 5 A BUC 1/BUC 2

LNB 1/LNB 2 Delay 20 × 5 mm, 1 A LNB 1/LNB 2

Remote Controller Delay 20 × 5 mm, 250 mA Remote Controller 6570

NOTE

Block Up Converter Systems 6700/6900 series User Guide 83

LNB fuses are fitted, but are not used in transmit-only systems.

Maintenance and fault finding

If technical assistance is required...

If the fault diagnosis guidelines do not locate the faulty module or cable, or if further technical assistance is required for any other reason, please refer to the contact details supplied with the equipment. These details are also available on the internet at www.codan.com.au. In the Satellite Communications section, click on Product Support.

Outside of normal office hours, Codan has Customer Service Engineers on call to provide emergency technical assistance. They will either answer your call immediately or return your call as soon as possible.

If you are connected to a voice mail system when you call, please follow the instructions carefully, that is, leave your name and contact phone number (including the country code), then a brief, clear description of your problem.

84 Block Up Converter Systems 6700/6900 series User Guide

Maintenance and fault finding

Finding faults in the BUC system

The fault finding information provided in this section is designed to locate faulty modules and cables, and to determine if correct operating procedures have been followed. Faults are indicated by the LEDs on the BUC (see Table 11 on page 59).

If a fault is indicated on the BUC it is recommended that you check the cables and the cable connections.

Using the BUC fault diagnosis charts

The tests indicated in the diagnosis charts are at the end of this section. When an ‘*’ appears in a diagnosis chart, it indicates that you are to refer to the relevant test.

You should be able to locate simple faults with minimal test equipment. A terminal or a computer emulating a terminal is required for checking the BUC. The most effective technique when dealing with complex faults, or if a terminal is not available, is to substitute modules.

During fault finding or performance testing, disconnect the transmit IF signal and/or

CAUTION

You can commence fault finding using the:

• Main BUC fault diagnosis chart (Figure 15 on page 86)

• LNB fault diagnosis chart (Figure 25 on page 96)

NOTE

Block Up Converter Systems 6700/6900 series User Guide 85

terminate the BUC output into a suitably-rated dummy load. This ensures that unwanted signals are not transmitted.

The following flow charts assume the BUC is in non-redundant mode. If the BUC is set to either of the two redundancy modes and is not installed in a redundancy system, LNB and redundancy controller faults are permanently indicated and cannot be cleared.

Maintenance and fault finding

Figure 15: Main BUC fault diagnosis chart

Main BUC fault diagnosis chart

Is the

PWR LED on the

BUC green?

Yes

Is the

FLT LED on the

BUC constant

red?*

Is the

Tx LED on the

BUC yellow?

See BUC fault

diagnosis chart 7.

Yes

See BUC fault

diagnosis chart 1.

See BUC fault

diagnosis chart 2.

See BUC fault

diagnosis chart 6.

* The FLT LED on earlier-

version BUCs may flash red

to indicate the presence of

latched faults. Latched faults

are reset using the RLF

command.

86 Block Up Converter Systems 6700/6900 series User Guide

BUC fault

diagnosis chart 1

BUC externally-

powered, or

powered via IF

cable?

Maintenance and fault finding

Figure 16: BUC fault diagnosis chart 1

Externally

powered

Check voltage on

power connector

(Test B)*.

* Refer to test

procedures

IF cable

IF power supply

being used?

Yes

Check for DC power at

the output of the IF power supply and the BUC end of the Tx IF

cable (Test A)*.

OK?

AC mains and circuit

breakers.

Check cable,

Yes

BUC faulty.

Refer to Codan.

Check for DC power at

both ends of the Tx IF

cable (Test A)*.

OK?

Yes

Modem or cable

faulty. Replace

as required.

Yes

Block Up Converter Systems 6700/6900 series User Guide 87

Maintenance and fault finding

Figure 17: BUC fault diagnosis chart 2

BUC fault

diagnosis chart 2

Check faults using

VFS command.

Tx Power

Alarm

OK?

Yes

Does

BUC have

a fan?

Yes Yes

See BUC fault

diagnosis chart 3.

Check the IF level

(Test D)* and the

output power alarm

threshold and adjust

as required.

BUC Temp

OK?

See BUC fault

diagnosis chart 4.

Reset latched

faults using RLF

command.

Wait for BUC to cool

down. Ensure air flow

around BUC is not

restricted.

* Refer to test

procedures

88 Block Up Converter Systems 6700/6900 series User Guide

Maintenance and fault finding

BUC fault

diagnosis chart 3

there a

fan fault?

BUC Temp

OK?

See BUC fan fault diagnosis chart 1.

See BUC fault

diagnosis chart 4.

Yes

Figure 18: BUC fault diagnosis chart 3

Block Up Converter Systems 6700/6900 series User Guide 89

Maintenance and fault finding

Figure 19: BUC fault diagnosis chart 4

BUC fault

diagnosis chart 4

Is PA

OK?

Switch off BUC PA

using STO0

command.

Reset BUC using RST

command. Reset

latched faults using

RLF command.

Switch on BUC PA

using STO1

command.

FLT LED

red and PA

showing a

fault?

Yes

diagnosis chart 5.

Yes

See BUC fault

BUC faulty.

Refer to Codan.

BUC OK.

Monitor for recurrence

of fault.

90 Block Up Converter Systems 6700/6900 series User Guide

Codan 6700 Series, 6586-C/W-M2-TO, 6560, 6900 Series, 6570 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of contents

1Overview

2 Installation

3 Setting up and operating the BUC system

4 Maintenance and fault finding

Index

List of figures

List of tables

Introduction

1 Overview

Introduction

BUC system configuration

Figure 1: BUC with L-Band modem and LNB

Figure 2: BUC with L-Band modem, external in-line PSU, and LNB

Transmit frequency bands

Table 1: Transmit frequency bands for C-Band and Ku-Band BUCs

Frequency conversion plans

C-Band

Table 2: Frequency ranges for C-Band BUCs (Standard)

Table 3: Frequency ranges for C-Band BUCs (Extended)

Figure 3: C-Band frequency conversion plan at an LO frequency of 7300 MHz

Figure 4: C-Band frequency conversion plan at an LO frequency of 7375 MHz

Figure 5: C-Band frequency conversion plan at an LO frequency of 7600 MHz

Figure 6: C-Band frequency conversion plan at an LO frequency of 7675 MHz

Ku-Band

Table 4: Frequency ranges for Ku-Band BUCs (Standard)

Table 5: Frequency ranges for Ku-Band BUCs (Extended)

Figure 7: Ku-Band frequency conversion plan for BUCs that cover the Standard frequency band

Figure 8: Ku-Band frequency conversion plan for BUCs that cover the Extended frequency band

Power supply options

Table 6: Power supply options for BUCs

C-Band

Ku-Band

Table 7: Frequency band options for the Ku-Band LNB

Redundancy systems

Redundancy system control

The redundancy controller

Figure 9: Control panel on the redundancy controller

LED indicators

Switches

Connectors

Figure 10: Connector panel on the redundancy controller

How the redundancy controller works

BUC faults

Power supply

Auxiliary I/O interface of the redundancy controller

RF waveguide switches

Systems using two RF waveguide switches

Systems using a combined RF waveguide/coaxial switch (C-Band only)

Systems using a single transmit RF waveguide switch (transmit-only)

The Remote Controller 6570 and Hand-held Controller 6560

2Installation

Unpacking the equipment

Installing the BUC equipment

TRF and LNB

Cables

DC power connection

AC mains connection

Table 8: Pinouts of the AC INPUT connector (Amphenol T 3110 000)

Cable recommendations

Table 9: Recommendations for IF coaxial cables

Cable loss specification

DC loop resistance specification

Cable lengths

Cable screening specification

Table 10: Cable lengths resulting in a 20 dB loss

IF levels

Using short IF cables

Figure 11: IF levels required for short cables

Using long IF cables

Figure 12: IF levels required for long cables

Serial interfaces

RS232 interface

RS422/485 interface

FSK interface

Connecting the serial interface