You are here: Home > CCTV / Surveillance > Multiplexers, Quads & Switchers >

Switchers for CCTV Security Surveillance Systems

> FM Systems
We found 3 results matching your criteria.
FM Systems Switchers This system will maintain your video and stereo audio integrity and reduce trouble calls
Sort By:
Page of 1
FM System VLS771-2 Video Loss Switcher For High Video Noise Operation FM Systems ALS602 Audio Loss Switcher
The VLS771-2 VIDEO LOSS SWITCHER is an automatic 2X1 Stereo audio follow video switching system that reacts to the loss of Horizontal Sync pulses. This device monitors the Primary video source and switches both video and Left and Right Stereo balanced audio sources to the secondary when the primary video signal ceases. The unit switches back to the primary channel when the video returns.
 
The unit will work in high video noise environments like the output of satellite receivers. The unit can be used to engage a hot standby source or to put up a test pattern when main video fails. This system will maintain your video and stereo audio integrity and reduce trouble calls. It can also be used where unattended video switching must occur. The video A/B switch stays on A during power failure.
 
Features of the VLS771-2 include a front panel three position command switch which is used to manually force either primary, secondary, or automatic video and audio switching. Also included on the front panel are two LEDs which indicate the status of the video and audio A/B switches. A field selectable hold over time allows for three different delay times for operation of the A/B switches.
 
The Low, Medium, and High speed response selector lets you set the operating mode to suit your system requirements. Standard BNC connectors are used for the video inputs and output, and a plug-in style removable screw terminal connector is used for the balanced stereo audio inputs and outputs. This audio plug can be pre-wired reducing your installation time. This switcher is housed in a sturdy aluminum die cast box which is completely RF shielded. The box can be mounted in the front or rear of your rack with the standard mounting bracket (included).
The ALS602 Audio Loss Switcher is a device that monitors a stereo or monaural audio input and switches to a secondary audio input when the audio fails. The unit can be connected to work with dual mono or stereo audio. A loss of audio triggers the audio switch after a field programmable time delay. This allows for normal pauses in the audio programming material. A time delay can be set from 1 second to 64 minutes.
 
 The switch will transfer stereo or mono audio from a secondary source when the primary audio has failed and the count-down time delay has been reached. If the audio is restored before the count-down time delay has been reached, the system will reset the counter and wait for the audio to fail. The unit has a front panel switch that allows the operator to program AUTOMATIC return to primary when the primary audio is restored.
 
The front panel switch can also select HOLD that will switch when the primary audio fails and keep the switch in the secondary audio position until manually reset by the operator, or the switch can be moved to RESET that will keep the audio on the primary feed for testing purposes. A green L.E.D. on the front panel indicates that audio is active. A red Alarm L.E.D. on the front panel indicates the switch is in the secondary position. The audio inputs and outputs are balanced and can be used with balanced or un-balanced audio sources. All audio connections are made on the removable screw terminal at the rear of the unit.
 
An additional relay output is available on a rear panel RCA connector to control a video switch so video can be switched with the audio. This unit has two independent mono audio loss detectors and switches on-board. When stereo is required both sides are connected together with a program jumper located on the pc board to form a stereo detector. In the stereo mode both audio inputs move together. The ALS602 is a dual mono or stereo card that fits into a PMS610 mainframe with a built-in power supply. The PMS610 Mainframe and power supply occupy one 19" rack space. This mainframe will hold up to three ALS602 cards. This allows for six mono or 3 stereo switches to be put into one mainframe space.
FM Systems VLS771 Video Loss Switcher (1 Ch. video and Stereo audio)
The VLS771 VIDEO LOSS SWITCHER is an automatic 2X1 Stereo audio follow video switching system that reacts to the loss of Horizontal Sync pulses. This device monitors the Primary video source and switches both video and Left and Right Stereo balanced audio sources to the secondary when the primary video signal ceases. The unit switches back to the primary channel when the video returns. If a power failure occurs the unit will automatically switch to the secondary video and audio.
 
The unit can be used to engage a hot standby source or to put up a test pattern when main video fails. This system will maintain your video and stereo audio integrity and reduce trouble calls. It can also be used where unattended video switching must occur. Features of the VLS771 include a front panel three position command switch which is used to manually force either primary, secondary, or automatic video and audio switching.
 
Also included is a video front panel LED which indicates the status of the video on the primary channel. Standard BNC connectors are used for the video inputs and output, and a plug-in style removable screw terminal connector is used for the balanced stereo audio inputs and outputs. This audio plug can be pre-wired thus reducing your installation time. This switcher is housed in a sturdy aluminum die cast box which is completely RF shielded. The box can be mounted in the front or rear of your rack with the standard mounting bracket.
   
 
FM Systems Switchers
 
 

Enter your email for a chance to WIN $100 Amex Gift Card.

Please Enter Your Email Address

*One entry per household please