
Manual
7005STC-O3B Ser ies
P/N 034839 Rev. 1.0 © 2010 Norsat International Inc. Page 1 of 28

7005STC-O3B Series
Table of Contents
CHAPTER 1. INTRODUCTION ----------------------------------------------------------------------------- 4
1.1 OVERVIEW -------------------------------------------------------------------------------------- 4
1.2 GENERAL DESCRIPTION ------------------------------------------------------------------ 4
1.3 IMPORTANT PRECAUTIONS ------------------------------------------------------------- 5
CHAPTER 2.
2.1 J1 / IF IN --------------------------------------------------------------------------------------------- 7
2.2 J2 / RF OUT -------------------------------------------------------------------------------------- 8
2.3 J3 / DC, M&C ------------------------------------------------------------------------------------ 9
CHAPTER 3. TECHNICAL SPECIFICATIONS -------------------------------------------------------- 9
3.1 SPECIFICATIONS SHEET --------------------------------------------------------------- 10
3.2 OUTLINE DRAWING ----------------------------------------------------------------------- 11
CHAPTER 4. INSTALLATION ------------------------------------------------------------------------------11
4.1
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 ------------------------------------------------------------ 13
5.1 USER SOFTWARE INSTALLATION ---------------------------------------------------------13
5.2 EQUIPMENT OPERATION ------------------------------------------------------------------ 16
CHAPTER 6. MAINTENANCE AND TROUBLESHOOTING ---------------------------------------24
6.1 MAINTENANCE ------------------------------------------------------------------------------------24
6.2 TROUBLE SHOOTING ---------------------------------------------------------------------------24
CHAPTER 7. WARRATY AND SERVICE INFORMATION ---------------------------------------- 26
CHAPTER 8. CUSTOMER SERVICE --------------------------------------------------------------------27
APPENDIX ---------------------------------------------------------------------------------------------------- 28
A1. ACRONYMS ----------------------------------------------------------------------------------------28
INTERFACES -------------------------------------------------------------------------------------
UNPACKING
5.2.1 DESCRIPTION OF THE USER SOFTWARE WINDOW -------------------------16
-----------------------------------------------------------------------------------------
5.1.1 INSTALLATION REQUIREMENTS ----------------------------------- 13
5.1.2 INSTALLATION OF US ER SOFTWARE ---------------------------- 13
5.2.2 SERIAL COMMANDS LIST --------------------------------------------- 18
5.2.3 SERIAL MODE OPERATION -------------------------------------------- 18
5.2.4 ETHERNET MODE OPERATION -------------------------------------- 20
5.2.5 BUC TUNR-ON/OFF SEQUENCE ------------------------------------ 22
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1. INTRODUCTION
1.1 OVERVIEW
7005STC-O3B-A and 7005STC-O3B-B is a highly reliable and innovative Block Up-converter (BUC)
specially designed for O3B satellite communication uplink system. This equipment converts the IF
signal (7005STC-O3B-A:1052-1788 MHz, 7005STC-O3B-B: 972-1871 MHz) to RF signal (7005STCO3B-A: 27.652-28.388 GHz, 7005STC-O3B-B: 28.172-29.071 GHz) with maximum linear output
power of 35dBm and saturated output power of 37dBm.
This manual provides the instructions necessary for operation and maintenance of 7005STC-O3B-A
and 7005STC-O3B-B. 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 7005STC-O3B-A and 7005STCO3B-B.
1.2 GENERAL DESCRIPTION
7005STC-O3B-A and 7005STC-O3B-B are comprised of IF, LO, Up-Converter, SSPA, and DC M&C as
shown Fig. 1.
IF Unit Converter Unit SSPA Unit
Filter
Filter
DC/DC Converter M&C Processor
Figure 1. Functional Block Diagram of Ka-band 5W BUC
DC M&C Unit

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1.2.1 IF unit
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 (7005STC-O3B-A:1052-1788 MHz, 7005STC-O3B-B: 9721871 MHz) to RF signal (7005STC-O3B-A: 27.652-28.388 GHz, 7005STC-O3B-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 cost- effective 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.
1.2.5 DC M&C unit
This board includes a DC/DC converter, regulators, and a 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 IMPORTANT PRECAUTIONS
Read all the following instructions prior to using the BUC.
1.3.1 Reading 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 Washing
Do not use liquid washing products or aerosols. Only use a damp cloth for cleaning.

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1.3.4 Water and Humidity
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 describe d in this manual should not be installed in an unstable situation because it may
cause serious injuries to the staff 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 230V to +48V DC, and the internal
DC/DC converter within the BUC generates 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 attempting to switch on the BUC.
Do not connect the AC INPUT (prime power) port to a power source until all the oth er c onnections
have been made.
Precautions
1. Do not operate the BUC without a cable or a RF load connected to the RF OUTPUT waveguide
port.
2. Never look into the waveguide opening when the BUC is powered on.

N-type IF
Connector
(Input)
2. INTERFACES
2.1 J1 / IF IN
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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-band 5W BUC
Figure 3. WR28 RF output port for Ka-band 5W BUC

DC / M&C(Ethernet
or RS232)
Mute return (=RS-232 GND)
2.3 J3 / DC, M&C
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
J1
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J3
Panel-mount (MS3112e14-12P)
Figure 4. Physical interface of MS 12-pin connector