Norsat O3b 20W BUC User Manual
Ka-band BUC 20W
7020STC-O3b
Installation and Operation M anual
DOC# Rev. 1.0
IMPORTANT NOTE: The information contained in this document supersedes
all previously published information regarding this product. Product
specifications are subject to change without prior notice.
CONFIDENTIAL AND PROPRIETARY
© 2014 Norsat Intern ati o nal Inc or po rat ed (“N orsat”) All Rights Reserved.
This document is the property of Norsat International Inc. (Norsat). Use by or disclosure to
anyone other than its authorized employees or agents is strictly forbidden except to the
extent permission is elsewhere granted.
This page is intentionally blank.
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Table of Contents
CHAPTER 1. INTRODUCTION-----------------------------------------------------------------------------4
1.1 OVERVIEW ------------------------------------------------------------------------------------------ 4
1.2 FEATURES ------------------------------------------------------------------------------------------- 4
1.3 CAUTIONS AND WARNINGS ---------------------------------------------------------------- 5
CHAPTER 2. INTERFACES---------------------------------------------------------------------------------7
2.1 J1 / IF IN ----------------------------------------------------------------------------------------------- 7
2.2 J2 / RF OUT ------------------------------------------------------------------------------------------- 7
2.3 J3 / DC, M&C ---------------------------------------------------------------------------------------- 8
CHAPTER 3. TECHNICAL SPECIFICATIONS----------------------------------------------------------9
3.1 SPECIFICATIONS SHEET ---------------------------------------------------------------------- -9
3.2 OUTLINE DRAWING ---------------------------------------------------------------------------- 10
CHAPTER 4. INSTALLATION ----------------------------------------------------------------------------11
4.1 UNPACKING ---------------------------------------------------------------------------------------- 11
4.2 INSTALLATION ON ANTENNA ------------------------------------------------------------ 12
4.3 CABLE INSTALLATION ------------------------------------------------------------------------ 12
4.4 WATERTIGHT SEALING UP OF CABLES AND CONNECTORS -------------- 12
CHAPTER 5. EQUIPMENT OPERATION ---------------------------------------------------------------14
5.1 USER SOFTWARE INSTALLATION ----------------------------------------------------------- 14
5.1.1 INSTALLATION REQUIREMENTS ---------------------------------------------------14
5.1.2 INSTALLATION OF THE USER SOFTWARE --------------------------------------14
5.2 USING BUC GUI ------------------------------------------------------------------------------------- 14
5.2.1 DESCRIPTION OF BUC GUI WINDOW -----------------------------------------------14
5.2.2 SERIAL AND UDP COMMANDS LIST -----------------------------------------------16
5.2.3 SERIAL MODE OPERATION------------------------------------------------------------16
5.2.4 ETHERNET MODE OPERATION ------------------------------------------------------17
5.2.5 BUC TUNR-ON/OFF SEQUENCE ------------------------------------------------------19
CHAPTER 6. MAINTENANCE AND TROUBLESHOOTING--------------------------------------- 21
6.1 MAINTENANCE ------------------------------------------------------------------------------------- 21
6.2 TROUBLE SHOOTING ----------------------------------------------------------------------------- 21
CHAPTER 7. WARRATY AND SERVICE INFORMATION---------------------------------------- 23
CHAPTER 8. CUSTOMER SERVICE-------------------------------------------------------------------- 24
CHAPTER 9. APPENDIX----------------------------------------------------------------------------------- 25
9.1 ACRONYMS--------------------------------------------------------------------------------------- 25
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CHAPTER 1. INTRODUCTION
1.1 OVERVIEW
7020STC-O3b is a highly reliable and innovative Block Up-converter (BUC) specially designed for
O3B satellite communication uplink system. This equipment converts the IF signal (A: 1052-1788
MHz, B: 972-1871 MHz) to RF signal (A: 27.652-28.388 GHz, B: 28.172-29.071 GHz) with
maximum linear output power of 41dBm and saturated output power of 43dBm.
This manual provides the instructions necessary for operation and maintenance of 7020STC-O3b .
All user interfaces present in the BUC, as well as an exact description of the diverse signals in the
connectors of the BUC, will be described in this document. This manual also explains the RS-232
and Ethernet communication interfaces for 7020STC-O3b .
1.2 FEATURES
7020STC-O3b are comprised of IF, LO, Up-Converter, SSPA, and DC M&C as shown Fig. 1.
Figure 1. Functional Block Diagram of Ka-band 20W BUC
1.2.1 IF unit
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IF unit amplifies the transmission signal from a remote modem and delivers it to the Up-converter
unit.
1.2.2 LO unit
LO unit generates two local signals to drive two LO ports of the up-converter using double
conversion structure.
1.2.3 Up-converter unit
Up-Converter converts the IF signal (A:1052-1788 MHz, B: 972-1871 MHz) to RF signal (A: 27.6 52-
28.388 GHz, B: 28.172-29.071 GHz) and also filters out unwanted spurious and harmonics in front
of SSPA. The BUC uses a double-conversion technology to achieve better performance and costeffective design.
1.2.4 SSPA unit
The main function of SSPA is to boost up the transmit power of the input signal to an expected level.
The SSPA includes the following modules: Divider, Power Amplifiers, and Combiner.
1.2.5 DC M&C unit
This board includes a DC/DC converter, regulators, and an EMI/EMC filter to make all kinds of DC
voltages required in the BUC. It also contains a Monitor and Control (M&C) function to monitor and
control the BUC, and communicate with a remote modem unit. The key parts for the M&C function
are a microprocessor and communication ICs for RS-232 and Ethernet.
1.3 CAUTIONS AND WARNINGS
Read all the following instructions prior to using the BUC.
1.3.1 Introduction
There is a potential safety risk unless appropriate precautions are taken while working with the BUC.
All the precaution and danger notes must be carefully read before beginning to use the BUC.
1.3.2 ESD Protection
The BUC contains elements sensitive to electrostatic discharges (ESD). It is important that the staff
is ground-connected while they are working with them.
1.3.3 Cleaning
Do not use liquid washing products or aerosols. Only use a damp cloth for cleaning.
1.3.4 Water
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Do not expose the BUC to standing water. Failure to follow this precaution could result in electric
shock and injury to persons.
1.3.5 Installation of the BUC
The BUC described in this manual should not be installed in an unstable situation because it may
cause serious injuries to persons as well as a severe damage to the BUC.
1.3.6 Power Supply
An external power supply is necessary to convert the input AC to +48V DC, and for the internal
DC/DC converter within the BUC to generate appropriate DC voltages for IF, LO, Up-converter,
SSPA, and DC M&C units.
1.3.7 Equipment Working Conditions
Never perform maintenance or make adjustments to the BUC when the power supply is connected.
1.3.8 Important Safety Information
Read the chapters on Installation and System Operation before powering up the BUC.
Do not connect the AC INPUT (prime power) port to a power source until all the other connections
have been made.
1.3.9 Waveguide
Never operate the BUC without a cable or RF load connected to the RF OUTPUT waveguide.
Never stand in front of or look into the waveguide during BUC operations.
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2. INTERFACES
2.1 J1 / IF IN
N-type connector is used for the input port as shown in Fig. 2.
2.2 J2 / RF OUT
WR28 waveguide is used for the output port as shown in Fig. 3.
Figure 2. N-type IF and MS 12-pin connectors for Ka 20W BUC
Figure 3. WR28 RF output port for Ka 20W BUC
2.3 J3 / DC, M&C
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Connecto
r
IF input connector
N-female, panel-mounted
Impedance
50 ohm
10MHz reference
input
J2
RF output connector
WR28
DC / M&C(Ethernet or
RS232)
Panel-mount (MS3112e1412P)
J3-A
Ethernet Tx-
J3-B
Ethernet Tx+
J3-C
Ethernet Rx+
J3-D
Ethernet Rx-
J3-E
J3-F
RS-232 GND
J3-G
RS-232 TxD
J3-H
RS-232 RxD
J3-J
DC Power (+36 to +72V)
J3-K
DC Power return
J3-L
Mute @ High-Z or +5V
J3-M
Mute return (=RS-232 GND)
MS 12-pin connector is used for the DC and M&C port as shown in Fig. 2, and its pin map
and interface are indicated in Table 1 and Fig. 4, respectively.
Table 1 Pin description for IF, RF, M&C connectors
Parameter Description
J1
J3
Figure 4. Physical interface of MS 12-pin connector
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