ADC SignalOn Series manual RF Signal Management Actives RF Switch Modules, 2 7 2 1 a E SignalOn

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® Series

SignalOn® Series

RF Signal Management

Actives: RF Switch Modules

The ADC SignalOn® RF Switch Module (RFSM) is designed for use with the SignalOn 8-position, or 20-position powered chassis. All RF connections to the switch are made through standard 75 Ω BNC, or F connectors on the rear of the module. All operating controls and indicators are located on the front panel with configuration controls located on the rear of the module.

The primary function of the module is to monitor the RF signal gain of the operating primary “A“ input, and switch to the backup “B“ input if the gain of the primary path rises, or falls below the pre-set customer selected threshold. Should the “A“ input side go above, or fall below the threshold of the unit, the RFSM will rapidly switch the input from the failed input to the secondary input. This switch usually

is less that 10 milliseconds. Switch status, failure LEDS, and RF level bar graphs are mounted on the front panel of the switch module. Switching threshold: +/- 3 dB or +/- 6 dB, and alarm contact closures are located on the rear of module.

Features

Dual RF Switch

Module

1 0 2 7 2 1 A E SignalOn

Continuous monitoring of primary and secondary

Detects both high and low power failures

User-selectable switching threshold: +/- 3 dB or +/- 6 dB

Fail-over switching time < 10 ms

Automatic switchback after "A" path is restored

Front-panel LED status and dual power

level displays

Alarm contact for remote failure monitoring

Available in BNC and F-connector configurations

Single or dual modules

Easily configured for redundancy or A-B switch applications

Front panel bar graph display provides indication of RF power and switching threshold

Indication of switch status provided by front panel LED and rear terminal block contacts

Easily configured switching threshold levels via rear DIP switch

One-step calibration

Auto switch-back feature to primary input

Built-in delay to prevent from false switching

Automatic or manual modes of operation

NEBS Level 3 compliant

5 / 0 8 •

O r d e r i n g I n f o r m a t i o n

Description

 

Catalog Number

 

 

 

Redundant RF Switch Modules

 

 

 

 

 

BNC connector

Single circuit

N-MRFSM1-B

 

 

 

 

Dual circuit

N-MRFSM2-B

 

 

 

F connector

Single circuit

N-MRFSM1-F

 

 

 

 

Dual circuit

N-MRFSM2-F

 

 

 

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Contents Spec Sheet RF Signal Management8 1 0 2 7 2 1 a E SeriesPower Kit RF Signal Management ChassisPosition, 1 RU Chassis Description Catalog Number Passive Chassis1 a E SignalOn RF Signal Management Passives IntroductionPassives RF Splitter/Combiner Modules 5 MHz to 1 GHz Description Plain Splitter/Combiner Modules Catalog Number 8 1 0 2 7 2 1 a E SignalOn SeriesMCF12M0 Circuit Quantity 8 1 0 2 7 2 1 a E SignalOnApplication Type DC ValueNebs Level 3 compliant Conditioning and monitor module schematicDescription Catalog Number Band Satellite Splitter Catalog Number Connector TypeDescription Catalog Number Band Satellite Splitter Modules Way SplitterPosition, 5 RU Powered Chassis RF Signal Management Actives IntroductionPosition, 2 RU Powered Chassis AmplifierActives Forward Path Amplifier Actives Amplifier Modules Specifications RF Signal Management Actives Power Supply Modules2 7 2 1 a E SignalOn RF Signal Management Actives RF Switch ModulesDual RF Switch Module Description Catalog Number Redundant RF Switch ModulesDB Fixed Gain RF Signal Management Actives Reverse Path Amplifier ModulesChassis Extender Brackets for RF Signal Management AccessoriesInsertion/Withdrawal Tools Terminating PlugsPower Supply Accessories DC Power Upgrade Kits forModule Conversion Kits to install Description Catalog Number Equalizer Pads