Comtech EF Data OM20 - Manual (Page 5)

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Table of Contents
TABLE OF CONTENTS ............................................................................................................................................. III
CHAPTER 1. INTRODUCTION ........................................................................................................................ 1–1
1.0 O VERVIEW ................................................................................................................................................... 1–1
1.1 OM20 C ONFIGURATIONS ............................................................................................................................... 1–2
1.1.1 Features/Options Installed at Time of Order ....................................................................................... 1–3
1.1.2 Software Feature Upgrades ................................................................................................................. 1–3
1.1.3 Future Hardware Options .................................................................................................................... 1–3
CHAPTER 2. INSTALLATION .......................................................................................................................... 2–1
2.1 I NSTALLATION R EQUIREMENTS ......................................................................................................................... 2–1
2.2 U NPACKING ................................................................................................................................................. 2–2
2.2.1 Outdoor Modem (OM20) ..................................................................................................................... 2–2
2.3 R EMOVAL AND A SSEMBLY ............................................................................................................................... 2–3
2.4 M OUNTING AND W IRING C ONSIDERATIONS ....................................................................................................... 2–4
2.4.1 OM20 Mounting Bracket Instructions.................................................................................................. 2–5
2.4.2 OM20 General Antenna Post Mount Diagram..................................................................................... 2–6
2.4.3 OM20 General Antenna Post Mount Diagram..................................................................................... 2–7
2.4.4 OM20 Antenna Feed Arm Mount Diagram .......................................................................................... 2–8
2.4.5 OM20 with External TWTA Amplifier ................................................................................................... 2–9
2.4.6 OM20 Additional Interface Diagrams ................................................................................................ 2–10
CHAPTER 3. OM20 INITIAL CONFIGURATION ............................................................................................... 3–1
3.1 OM20 I NITIAL C ONFIGURATION C HECK ............................................................................................................ 3–1
3.2 I NITIAL C ONFIGURATION AND S ETUP P ROCESS .................................................................................................... 3–3
3.2.1 Initial Power-Up and Configuration Verification .................................................................................. 3–3
3.2.2 M&C Setup (IP Configuration & RS232 Interface) ................................................................................ 3–3
3.3 OM20 V ERIFICATION T ESTING ........................................................................................................................ 3–4
3.3.1 TX Output Verification Test .................................................................................................................. 3–4
3.3.2 RX Input Verification Test..................................................................................................................... 3–5
3.4 S TORAGE AND R ESHIPMENT ............................................................................................................................ 3–5
CHAPTER 4. OM20 THEORY OF OPERATION ................................................................................................. 4–1
4.1 OM20 H ARDWARE ....................................................................................................................................... 4–1
4.1.1 OM20 L-Band Printed Circuit Card ....................................................................................................... 4–2
4.1.2 OM20 Baseband Processing Printed Circuit Card ................................................................................ 4–3
4.2 OM20 F UNCTIONAL B LOCK D IAGRAM .............................................................................................................. 4–4
4.2.1 Baseband Processing ........................................................................................................................... 4–4
4.2.2 Tx Baseband Processing ....................................................................................................................... 4–5
4.2.3 Rx Baseband Processing ....................................................................................................................... 4–5
4.3 M ONITOR & C ONTROL (M&C) S UBSYSTEM ....................................................................................................... 4–6
4.3.1 Terminal Port ....................................................................................................................................... 4–7
4.3.2 Modem Remote Communications (RLLP) ............................................................................................. 4–7
4.3.3 Ethernet M&C Port ............................................................................................................................... 4–7
4.3.4 Modem Monitor Status ........................................................................................................................ 4–8
4.4 A SYNC P ORT / ES-ES C OMMUNICATIONS .......................................................................................................... 4–8