DTMF 4 RELAY CONTROL OVER UTP WIRES
By: Don McClatchie When you have an installation that requires remote control of a gate, light, or other equipment and you only have one relay to operate you can use Direct Current (DC) or Alternating Current
Technical Publications
HOW TO ADD CONTROL RELAYS TO HD VIDEO
By: Don McClatchie How to add control relays to HD Video is a question that I get from time to time. The new analog HD-Video cameras referred to as AHD, TVI, and CVI are being installed in greater quantities because they can provide the needed High
OPEN CIRCUIT BATTERY MEASUREMENT TABLE
By: Don McClatchie Measuring battery State of Charge can be a tricky business especially if the battery is in service connected to a source or drain of current. I am sure that many of you have measured a battery and found the voltage to be
PHYSICAL LAYER DRY CONTACT TCP/IP SWITCHING
Dry contact relay switching solves problems with TCP/IP connections.
HAZARDOUS MATERIAL HANDLING TRUCK SURVEILLANCE
Adding video cameras to truck trailers using existing wiring.
VIDEO LOSS RELAYS TITLE 25 PART 542 OF THE e-CFR
By: Don McClatchie Video cameras have been used in the gaming industry since they became commercially affordable. Used for surveillance of the game playing tables and overall gaming floor observations. Many rules and regulations have been developed to incorporate the use of video surveillance cameras in Tier A, Tier B
NEW VIDEO CAMERAS PUT THE “VI” BACK IN HIGH DEFINITION VIDEO
Add relay control to any HD video camera.
HOW TO GET 2 WAY RELAY CONTROL ON IP NETWORKS
2 WAY RELAY CONTROL ON IP NETWORKS
MICROPHONISM DETECTION AND REMEDIATION
MICROPHONISM DETECTION AND REMEDIATION By: Don McClatchie Many dictionaries define Microphonism as “the effect of unwanted modulation that is produced mechanically in an electronic circuit”. Others know it as that annoying noise that a piece of electronic equipment makes when it is bumped or tapped on. The