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Comtech EF Data SMS-451 User Manual

Page 6

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SMS-451 Satellite Switch

Revision 0

Preface

MN/SMS451.IOM

iv


2.3.3 SMS-45T External Connections ...........................................................................................................2–15

2.3.3.1 ESC "A" Connector Pin Assignments (J16 and J26) ....................................................................2–16
2.3.3.2 ESC "B" Connector Pin Assignments (J17 and 27) ......................................................................2–17
2.3.3.3 ESC "COMMON" Connector Pin Assignemnt (J18 and J28).......................................................2–18
2.3.3.4 Remote Interface OUT (J5 and J25)..............................................................................................2–19
2.3.3.5 AC Power (J2 and J24)..................................................................................................................2–19
2.3.3.6 Ground (J3) ...................................................................................................................................2–19

CHAPTER 3. OPERATION........................................................................................ 3–1

3.1 Overview .......................................................................................................................................................3–1

3.2 SMS-451A/E Front Panel ............................................................................................................................3–2

3.2.1 SMS-451A/E Front Panel Indicators ......................................................................................................3–2
3.2.2 SMS-451A/E Front Panel Switches........................................................................................................3–2

3.3 SMS-451A/E Local Control.........................................................................................................................3–3

3.3.1 SMS-451A/E Modulator Operation........................................................................................................3–3
3.3.2 SMS-4512A/E Demodulator Operation..................................................................................................3–4

3.4 SMS-451A/E Remote Operation.................................................................................................................3–4

3.5 SMS-451T Front Panel ................................................................................................................................3–5

3.5.1 SMS-451T ESC "1" ................................................................................................................................3–5

APPENDIX A B-141-1 BREAKOUT PANEL .............................................................A–1

A.1 Overview .....................................................................................................................................................A–1

A.2 External Connections.................................................................................................................................A–3

A.2.1 ESC-1 Interface J1 ................................................................................................................................A–3
A.2.2 8 kbps RS-422 Interface (P2)................................................................................................................A–5
A.2.3 Alarm Outputs (TB1)............................................................................................................................A–5
A.2.4 Backward Alarm (TB2) .........................................................................................................................A-6
A.2.5 ADPCM Audio Connector (TB3).........................................................................................................A–6

INDEX .......................................................................................................................... I–1