![background image](http://html1.mh-extra.com/html/advantech/sbd75e-series/sbd75e-series_installation-and-operation-manual_2858271008.webp)
Getting Started
1.1
Scope of this Manual
1.1.1
Who Should Use This Manual
This manual is intended for operators/users of the SBD75e series of Network L-Band Satellite
Demodulators to assist in the installation, operation, fault-finding and maintenance of the
equipment. Throughout this manual, this product is referred to as the ‘SBD75e Demodulator ’.
WARNING
DO NOT REMOVE THE COVERS OF THIS EQUIPMENT. HAZARDOUS VOLTAGES ARE PRESENT WITHIN
THIS EQUIPMENT AND MAY BE EXPOSED IF THE COVERS ARE REMOVED. ONLY ADVANTECH AMT
TRAINED PERSONNEL AND APPROVED SERVICE ENGINEERS ARE PERMITED TO SERVICE THIS
EQUIPMENT.
Caution
Unauthorised maintenance or the use of non-approved replacements may affect the equipment
specification and invalidate any warranties.
This Installation and Operation Manual does not include any procedures which require the
removal of any equipment covers.
1.1.2
Version Information
This manual has been written to cover
Software Version 2.5.3
and later.
1.1.3
Equipment Covered by this Manual
This manual covers the SBD75e L-Band Satellite Demodulator.
1.1.4
RF Interface Options
The SBD75e Demodulator has two RF L-Band Inputs (950-2150 MHz).
1.1.4.1
L Band Input (950-2150 MHz)
The Demodulator is capable of being used in conjunction with most C-Band or Ku-Band LNBs or
BDCs, with L-Band RF frequencies in the range of 950-2150 MHz. For L-Band operation, the
Demodulator has two separate L-Band inputs and a separate L-Band N-Type output, accessed
at the rear of the unit.
There are two inputs to the Demodulator, useful for receiving from two different polarizations or
two different satellites. One is on Channel 1 (Type F female, 75
Ω
), and the other is on Channel 2
(Type F female, 75
Ω
). Either can be connected directly to the Receive IF connector of the
appropriate LNB/BDC. The cable loss should be considered when selecting the cable. The
Demodulator can additionally provide dc power (+13/+18 V, 0.4 A), a 22 kHz tone or a 10 MHz
reference on the same cable as the L-Band receive carrier. The ON/OFF state of the LNB power is
indicated by an LED on the Front Panel.
1-2
SBD75e Series Demodulator Installation and Operation Manual