Advantech SBD75e Series Especificaciones descargar pdf (Pagina 8)

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.

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