SWITCHING MONITORING & CONTROL

IN HEADENDS AND HUB SITES
 

Headend Channel Switching & Equipment Control ...MX Products
 

A complete system solution is offered with the MX products for channel scheduled & remote controlled switching in Headends and Hub sites. The system includes SMC (Windows/PC) software. It can be configured with the following applications:
 

• Matrix Switch & Channel Substitution
 

IF/RF Matrix Switch, expandable to switch 128 Headend channels
Large (128x128) Video/Audio or Digital Routing Matrix
(e.g. Grass Valley "Horizon" , Utah Scientific Router, Leitch…)
RF & Video/audio (single output) channel Substitution Switches
 

• Controlled AC outlet & Contact closure outputs
 

Sixteen (16) relay contacts incorporated with the MX-1600 Matrix
Dedicated chassis housing up to (144) relay contact outputs
Sixteen (16) AC outlet modular system
 

• 16x1 switching
 

5 to 200 MHz RF Return Path, stackable to 80X1… and beyond
Composite baseband with 4.5mhz audio
 

Automatic Redundancy Switching ..…. RSS Products
 

• Automatic Broadband Switch
 

Dual-Band split-fiber receive trunk (Monitors Low & High bands)
Broadband trunk (Monitors Main feed)
Broadband trunk (Monitors Main & Back-up feeds)
Broadband Return Path (Monitors Main & Back-up feeds)
Broadband L-Band (950-1450 MHz)
 

• Single channel redundancy
 

VHF, CATV, or UHF channel
Baseband video/audio
Sub-low channel
 

• Color Bar detection substitution switch
 

Site Monitoring and Control …… RMS Products
 

• Hub site monitoring

RF level & video modulation presence of all channels
Demodulated output of selected channel
 

• Headend monitoring & redundancy

RF level & video modulation presence of all channels
Automatic replacement of faulty channel
 

• Multiple remote Headend monitoring

RF level & video modulation presence of all channels
Second RF input selection to monitor off-air channels
Sixteen (16) contact closure output
Sixteen (16) analog/digital points site monitoring

The SMC components can be used individually to address specific applications, as well as being integrated for complete automation & management of the Headend. The modularity of the SMC system is intended to give the operator a greater flexibility in satisfying current requirements with the expansion capability to respond to future and unforeseen needs.

REMOTE SITE EQUIPMENT AC POWER RESET & CONTROL

Tekron AC Power and Contact Closure Control systems are designed for use in remote Headend & Hub sites to reset satellite Digital Receivers or Network Servers to re-initialize them when they lock-up, to control Network & Headend equipment at the site.

The system is scalable & modular to adapt to changing needs at the site, and to allow switch modules to be located close to the equipment it controls in a large site. The system has been designed with the CATV environment in mind. In addition to remote computer control, the site equipment can be controlled from any touch-tone telephone in emergency with access protection. Depending on the application, several versions can be offered:
 

• Remote AC outlet control in remote sites
Sixteen (16) AC outlet modular system
Expandable system for individual control of 128 AC outlets
 

• Contact closure monitor & control of Network equipment
Sixteen (16) Monitor points & contact outputs
Expandable system for a maximum (144) relay contact outputs

SIGNAL MONITORING OF BROADCAST TRANSMISSION SITES

Site Monitoring and Control …… RMS Products

The RMS products are designed to monitor a Broadcast Transmitter output channel as well as the video & audio feeds at the transmitter input. The RMS monitor station can interface with any existing status monitoring system at the transmission site. It can also be supplied for a complete system solution to small transmission site monitor & Control applications. In this version, the RMS monitor station has dial-out & alarm capability, as well monitor/control contact points for a complete transmission site monitoring & control. The RMS station are designed to monitor:

• TV Transmitters with selectable input in the VHF & UHF band
• FM (Mono & Stereo) Transmitters with selectable input in the FM band
• AM Stereo Transmitters with selectable input in the AM band

Automatic Redundancy Switching ..…. RSS Products

The RSS products are designed to monitor a feed automatically switch to a backup one on signal loss. They are used to provide Redundancy to Video & Audio feeds received from the studio at the transmission site, automatic switchover of TV/FM channels, or to provide alternate programming at an Up-link site. They are offered for:

• TV channel automatic switchover in VHF & UHF band
• Video/audio automatic switchover with a third Color Bar generator input
• Stereo Audio automatic switchover with a third tone generator input
• Color Bar detection & substitution switch