Hi.
I apologize if this topic isnt exactly about PLCs, but it is pertaining to testing control systems (with PLCs), so maybe you can forgive me.
When we have control panels physically located wide apart and they must work together, we use walkie-talkies to communicate. Problem is that they get quite unreliable when the radio vawes has to travel a long distance or pass through thick concrete walls.
So I get the idea of installing a regular wire-based intercom system with a phone in each panel.
I am after something simple and cheap.
Everything is about wireless these days, old fashioned wires seems so yesterdays technology. "industrial intercom" attracts 85000 hits on google, and they are all about something much more capable, complicated and expensive than what I am after.
Anyone seen something that could fit my panel and my budget ?
I apologize if this topic isnt exactly about PLCs, but it is pertaining to testing control systems (with PLCs), so maybe you can forgive me.
When we have control panels physically located wide apart and they must work together, we use walkie-talkies to communicate. Problem is that they get quite unreliable when the radio vawes has to travel a long distance or pass through thick concrete walls.
So I get the idea of installing a regular wire-based intercom system with a phone in each panel.
I am after something simple and cheap.
Everything is about wireless these days, old fashioned wires seems so yesterdays technology. "industrial intercom" attracts 85000 hits on google, and they are all about something much more capable, complicated and expensive than what I am after.
Anyone seen something that could fit my panel and my budget ?