Category Archives: Master Control Ideas

EAS – Emergency Alert Systems – Sage – TFT – Options.

Sage EAS Unit, Model – Sage Digital ENDEC.
Data Interface
• Six serial ports, DB-9, for relay panel interface, hand
held remote control, CG control, LED display,
automation, etc.
• Two USB connectors, for printer, additional storage
• Five GP inputs for automation interface, trigger of RWT
or forward of alerts on up to four stations
• Four dry contact closures for automation interface

SD composite video external Character Generators. (for crawl) Reported to work.
Chyron Codi (used)  VDS 830/840 (used) , XBOB-4 Video Information Overlay Generator (new), Video Messenger VM-3 Message Generator .(used)
Compix ChannelBrander (? needs confirmed)

Audio: (on unit)
Sage Digital ENDEC Specifications
Audio Inputs
• Six unbalanced analog EAS monitor inputs
• One AES/EBU digital audio program in /station passthrough
• One balanced stereo analog XLR program in /station
• One unbalanced low level microphone audio input
• One unbalanced analog local audio input
Audio Outputs
• One AES/EBU digital audio alert audio insert/station
• One balanced stereo analog XLR alert audio
insert/station pass-through
• One unbalanced line out – analog multi-station
interface or local audio

External switching of Audio/Video
This unit allows all subchannels to be switched to EAS channel or many channel during alert
R174A A/V Relay Panel
Part Number: R-165A

Monroe Electronics’ Model R-165A Audio/Video Relay Panel provides four, independent 2 x 1 (A/B) balanced stereo audio follow video relay switches. The switches are controlled by Monroe Electronics’ program timers, remote controls or CATV Cue Tone® receivers via contact closures or logic inputs.
Each video relay will also function as a high quality IF/RF 2 X 1 (A/B) switch, with frequency response to 950 MHz. Auxiliary relays 1 & 2 available for GPI or SAP switching. Features:

• Balanced Stereo A/V and IF/RF Switches to 950 MHz
• Contact Closure for Activation
• Front Panel Status Indicators
• All Interconnections Made at Rear Panel
• Detachable Screw Terminals for Stereo Audio
• F Connectors for Video (or IF/RF)
• Low Power Control Inputs
• Optional Redundant Power Supplies

Leightronix Ultra Nexus Video server with external Genlock and router

What is a Nexus read here or continue on.

The problem: The Nexus has an internal video switcher but it will not genlock to an external source. Hence a switching glitch in certain cases such as live satellite to internal mpeg video player. If you use a nexus output as genlock it will fix the switching glitch, see this post. But that introduced other problems such as during a reboot as stated in that older post.

The solution: A external router with each source genlocked synced and also each audio level can be adjusted independently so they all match both video and audio and no video glitch when switching.

The items needed for a minimum set up

Leightronix Nexus video server.

External Kramer A/V 8×8 router audio on rca connectors (get a 12 x 12 if you can but 8 x 8 works)

Black Video Genlock Generator to external DA 1 x8

TBC, Framesync or Procamp/frame sync for each active channel (check ebay)
Audio level control each channel 8 in 8 out mixer to audio in router(lots of options here like rack mount line mixers adapters)

Waveform Monitor *

Audio meter(s) *

Video Monitor and router to select inputs *

Audio Monitor *

*If you have some items in house use them you can share items in Master control

Be prepared for the following if you are already using the Nexus.
One: is when you go external the inputs and outputs changes, The Six inputs are now invalid, only input 1 is used, the outputs become program 1 mpeg player, program 2 out = preview, program 3 = what is being recorded on input 1. Remember it is not switching anymore internally the external Kramer is doing that under control of nexus..
Two: You will lose your program log and it will need reprogrammed, so print it out, or just redo from scratch. I also had some problems with the library but I was able to fix it without reloading shows.
This will take some time so have a backup on air to keep station running programs.

Nexus 113011 v2

Nexus Drawing 113011v2
Nexus Drawing 113011v2

Program I used to create drawing Diagram Designer (freeware). You do not need this to view drawings above. I include this so you can make your own drawings.
Diagram Designer 1.24 (1.32MB) – Vector graphics editor for creating flowchart and diagrams.
DiagramDesigner download install file
Raw DD Drawing File zipped of drawing shown

In conclusion,
It works. The glitch is gone on switches between synced items. The other non-synced items we do not switch direct to air.
I notice no switcher time lag. In the drawing the unused Kramer 8 x 8 video outputs can be used for in house distribution.
Also some video distribution amplifiers are not show. For example each satellite has it own video monitor.
Ingest or capture is still problematic as the Nexus only has one record channel and we use that for time shifting satellite programs a great deal of the time. The solution is a Non-Linear editor computer with capture, the main draw back being it also has to be rendered to MPEG 2 format. The Leightronix solution is the Pegvault we are looking at that very closely.

Keep looking up
Jim Wilson In His Service


MCR Ideas

Monitor Wall:
Video clock to display in monitor wall. (basic computer)
Monitor lables with clear transparency printing and lights.
Larger preview monitor.
Remote power switch to shut off all monitors. (x10 system?)
Add Quincy Cable
Add Dish Network
Add local silence alarm

Replace CRT monitors with LCD
Finish Ghz network

Add video DA’s (4x)
Add audio meter, video monitoring on outputs.

REPLACE TBC with better unit.