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Thanks Evans. I'm looking to resurrect some of my electrical / comms knowledge and bring it up to date to carry out some small jobs for friends and charities Im involved in. While having lot of knowledge from design point of view - I lack current knowledge about "in the field" terms and...

Thanks for your help PPP

The PBX has only analog jacks being fed through the patch bay - and then through separate switch 

Hi I'm Steven. I was trained to HNC in Electrical and Electronic Engineering in the 1980's   Worked in Security and Communications for many years designing new equipment both electronic and embedded software aspects. Concentrating on software I worked in industrial control / point of sale /...

original heater hooked to a fused spur

I'm looking an installation that has an old patch bay that seems to have a set of analogue phone lines going in - being mixed with Internet style RJ45 connectors into what appears to be a regular internet switch. the suggestion is the outputs are going to modern phones needing more power than...

Hi I'm looking to help my local church by replacing a electric bar heater with two wall heaters in a office in the church hall. I am not intending to increase the overall heat output simply spread it around the room better and allow them to use timers on the heaters to preheat the office...