2 7 2 1 a E SignalOn, Dual RF Switch Module

® 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

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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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