Well, unfortunately the magic smokers escaped. Well, something went snap, crackle and pop. Damn it. Hi! We've got a quick teardown today because the more interesting Ted and I was gonna do actually blew up on me.

Release the magic smoke and if you can hear some fan drone in the background, that's my filter in the lab furiously trying to get all the crap fumes out of here. So anyway I thought I'd this is my emergency backup teardown. It's one of these I Pecs LG Erickson Fine Call or Telecom centers. All this stuff was left over in this office when I moved in here.

If you saw the tour of that there, it's the I Pecs system and they got a whole bunch of these You know, these phony things and the switch II Telecom II control thing with all the outputs of whatnot I Thought we'd give this a teardown. see what's what? So what we've got with this system is the I Pecs and Erickson LG brand I picks EMG 80 So it's like a PA BX call center telephone. you know, integrated system for you have a big call center with you know, 50 or 100 people and they all have their individual phones or even like small teams of like you know, five or something like that can all you know transfer calls and stuff internally. Then we've got a bunch of headsets and I posted back.

when I posted that video, a lot of the a lot of people said these are actually a really good brand. a Jabra Bluetooth You can probably look at still charging there even though nothing's plugged in. so I don't know what the deal is there anyway. A Bluetooth Wireless headset.

So this is obviously the charging station, so at the end of the day you put your wireless headset back on the charging system and then you at the start of the day when you come in. Bingo! you've got this high quality. Bluetooth A comfortable headset thing with no wires to dangle around. and so this is the telephone here and it's got.

you know your usual buttons, but it's got a trans PGM no idea what that is. Speed did, do not disturb. oh okay, call back mute and I did you know I'm sure it's got tons of features that you'd have to figure out how to use and also all sorts of programmable buttons. I Paula and Joanne and Mark and Toni and Catherine Robert thank you very much voicemail, you know, and all that sort of jazz, but it's got this Jabra like a receiver transceiver actually hooked over the over the thing now the speakers behind there and it looks like it's really weird.

I don't really know how that works. it looks like that comes up somehow, but I'm not sure I sure what the deal is I've never used one of these I have no idea, but it's like it. like it looks like it's a like designed to clip over the existing unit. so that's it's.

rather fascinating. Anyway, it's got a wire that just buggers off to the back of here. It's got a mains plug, packets got auxilary and then you plug the headset and whatnot in there so can presumably tap into that and that looks like a channel selector perhaps. Now these are phones here and not designed for your regular you know, switched phone line.

Even though it's got like you know line in here and the like, the handset going off to here and the headset going off to here. you can't just plug this into your standard phone line cuz watch what happens if I do. It's funny here. we go watch this.

Don't know if you can hear that but snap, crackle, pop. That's great. That's brilliant. It's not a happy camper.

Yeah, so it looks like this puppy was not happy with the 40 48 volts on the loop telephone line. So let's let's crack this open. We go have I missed something. It's a little some sort of little programming.

Ah, I forgot a screw there. we go whip that out. We should be in like Flynn There you go. So we've got two boards solution here.

so that's your line isolation. But as I said, not designed for the public switched telephone network designed to work. You know, a proprietary thing designed to go over to the specific P A B X So and a custom bit of silicon? What is that? No idea but it'll be a custom ASIC that's for sure. the whole bunch of memory next to it and not much else really.

There's our there's our off hook switch. That's a nice. That's a nice solution. I Really like that.

That looks like that'll last a long time. Wow Yep. I'm impressed by that. Looks like they got a Mylar cone.

Oh there it is. Yeah, like some sort of mylar, a cone speaker. It's got a seal and that's that's. really quite nice.

That's a nice professional solution Oh Like that. but you know I should expect these things aren't cheap. They're not built down to a price. In fact, you can see the rubber seal all the way around there and that would made up with the made up with the back of that.

There you go, the back port. so that's a completely sealed enclosure to get. They've paid attention to the audio to get decent quality out of that, so that's really nice. I Like that.

that feels like it's your favorite of traveling that baby. I Like that. wonder who makes it and they've even thought about how to get the cable through to penetrate down like that. They've left a little cutout in the black plastic and they've put little she's in there that those wires can go in like that and still form a great seal around there.

Wow Somebody took pride in that one. Just got a whole bunch of trendies around there and some resistors in a seven four five seven, four, is it's in four series, so that's just doing that. or the matrix starts switching for the keypad and whatnot. so that's it.

Nothing else in there. Oh, it's pretty simple except for the ASIC of course, which I'm sure is quite complex. Okay, well have a quick look inside this. Jabra headset.

the the outer thing just plugs on there because you can just get replacements for that because they wear out and get all yucky and that's about all. I Expected Big single-chip solution up there. We've got the Bluetooth receiver here. You can see that buggering off there dual antenna there by going off along the sides.

and I don't haven't can't read that one from here. What's that? And that's a Dialogue Semiconductor part, which is actually formerly Our Sight Hill And here's the datasheet. Confidential. None of that.

NDA Rubbish. We got the good stuff here and it's designed. single chip solution. Exactly four.

These are decked applications. So yeah, that's all that's all she wrote. and as I said, the transceiver down there. you can see a little itty bitty tactile switch down there that turns you power off and on.

and that comes from that little bump there which did have this little red cap on it. Yeah, not a huge amount in that, but you know some nice engineering has gone into that. So this transceiver thing seems to do absolutely Nothing is just stuck on with double-sided tape. doesn't Did nothing stuck on with double sided tape? There's nothing in there.

So yeah, I don't know what that slider is supposed to do? Um, got no clear that. Like what? why and I don't know what this arm here is. Does that detect that? Like to pick up when you're off hook? and what does that positive and negative thing do? There's different little indents in there I guess that after RTFM Oh, there you go. It's a motorized flippy doodad for that's the technical term for lifting the handset off the hook up here.

So it's compatible with any phone on the market. So if you want to like it's it's got a button on the front so you can maybe do it manually. or if you want to I Presume: maybe you can push this side of your headset or whatever and that will instruct this to then it'll just spin around and that'll lift that up. So it lists the handset up and goes off look like that.

So and and then like answers the call like it's so it's compatible with any unit on the market. Isn't that neat? Who designed an engineering Denmark manufactured in China Of course right all my Danish viewers and there you go. There's the batch in transceiver with a with the matching dialogue site. he'll chipset.

Not much doing. Got some line interface stuff. There's a little piece of B mount encoder there for the that's for the channel select knob on the back. Got our jewel diversity antenna there and that's A.

That's a nice bit of engineering it all. just like clips together in one piece of plastic. It's actually this. It's very impressive envelope design I love that and that looks like it has some inner got like sort of like light pipes.

They're integrated and it looks like we've got a little extender bars down there from the buttons on the front and that's the matching channel select and that all just comes apart in like those pieces like that. it really is pretty terrific. I'm impressed by that. A couple of relays for switching over there and Bob's your uncle see something like that is late.

Really quite complex and difficult to design without. you know, modern. Our CAD tools that you can actually do mechanical DRC on that sort of stuff because it's all got the side clips on the side and everything else and everything has to fit in. Just hunky-dory like that.

but that's yeah, that's pretty nice. It just goes together like that. It's beautiful access to where I external test pads down here. Fantastic.

and then that just clips in there like that and it all goes together. Absolutely terrific. Okay let's have a look inside this thing and AC input external battery of course or when the power fire was just still want to keep up and run in for a little bit at least. and on the other side, anything? Oh yeah, look HDMI I'm but they're not tasting the issues.

The HDMI connectors left and right I don't know what they're for I don't think they're external monitors. little Rs-232 you've got your LAN interface as well USB What does? So we got relay, paging, relay, and stuff like that so you can put it up to you know, old-fashioned paging systems and a whole bunch of rje Elevens that's it. Suspect there's going to be a huge amount of wasted space in huh? Here it just flips up. That's it.

Two screws on the back Oh Bob's your uncle we're in got a light pipe that goes down to through to this off just to light up the bar. wank wank under that. No one's going to see it because it so installed in the in the comms rack or whatever. That's just ridiculous.

But there you go isn't that neat and tidy though. It's a lot of engineering that goes into one of these though. I Can see a lettuce part you know, have a custom ASIC job' down here. not a huge big, quite a flat-pack over there that's enormous.

and of course your line interface board and expansion. And a second. you could put a second one on here. that's why they've got that extender up there and daisy chain.

So so come with a base number of channels and then you add you know, an extra four. Yeah, four channels or whatever for each one. Check out this board. There's a actually a ton of stuff missing up the top.

Well, they've got an extra two. Yeah, looks like yeah, they've got only half the channels populated. You can see that they're all duplicated. and these ones are duplicated here.

You can actually see the thermal pads under these. these must be switching regulators. You can tell by the big-ass inductors and the caps around them that's A. And you know it looks like they've got some current measurement shunts and stuff there or something like that.

And yes, are there. They're big, are switching regulators, you line interface. So Transformers I've got some line protection down there. They look pretty chunky.

Look at the thickness of those. neat, but boy, that's only half populated when it's oh yeah, no, you can fit another four channels on there. Okay, that's why. But here you've only got you two.

So it's interesting. and then a lot of semiconductor job up there. Programmable. but yeah, it's not much doing on that.

A couple of passives on the back. it's a bit all she wrote. LG Nortel There you go. They've rolled their own custom silicon for this rev.

B on this. Yeah. Wow Look at all the tents. That's incredible.

I haven't seen that many talents. Somebody had fun. That's just insane. Anyway, we've got some firmware down here and by the way, that's actually yeah.

that looks like a programmed part as well. Well I don't know if that's well, would it contain like internal flash or whether it be x10? I'm not sure, but it's got a software sticker on it. But anyway, I've got some more flash down here. We're going to let us programmable job' down in there.

What does that little? FPGA and that one looks like that's a free scale? Is it M83 60 1g I Suspect that's gonna be some sort of applications processor. Got some memory tied into that? It's not a huge amount else. of course we had that all the line interface stuff that we saw before also on this board. so it's got a set number of channels in the base unit.

but I Like is this like the voice processor or whatever? I Don't know if this is like an analog or a digital job I Presume it's like a digital system these days. Miscellaneous housekeeping with the lettuce there and and some sort of applications processes for all your a Thern Ette goodness and all that other internet or whatever LAN connectivity stuff. but that's about all. she wrote Some like little custom transformers that goes up to the relay alarm output up there.

That's fascinating anyway. battery backup and not much else doing. Still don't know what this thing does with these are H TMI outputs I I Don't think they're actually video, they're just using the connector for something else like and look at that power supply and this is all passive. Of course, there's no fan in this thing.

hence all the lots of grills and slots all the way around. it's just getting in the airflow. Generally you're gonna have like some sort of airflow in the cabinet from the comms cabinet from you know, other gear and stuff like that. but yeah, generally that looks really smick well laid out.

and I love the big plastic cage that goes over the top of that. It's beautiful. Nice big ferrite on there too. So there you go.

That's just a quick look at this. say Ericsson LG IP x PA Bx things or little board. Don't know what that does. Some option you pay a fortune for I'm sure I don't know.

Anyway, yeah, you've got a option these babies up and these are real. You know, purpose, design, specific bits, a kit? they don't so you know they're not really consumer type things. they're you know, design for professional office environments. Don't know how much they cost, but I'm sure they're not cheap, and they're designed and engineered very well.

There doesn't seem to be any cost-cutting at all inside. these things engineered remarkably well. And of course they roll their own custom Asics is a lot of these telecom companies do, which we've seen on similar sort of boards in the mailbag and stuff like that. Really remarkable and a lot of efforts gone into designing and manufacturing these systems.

So if you actually work on at a company are designing these sorts of our telecoms niche telecom stuff, please let us know in the comments down below. Anyway, hope you enjoyed it. Catch you next time you.