16 port gigabit switch?

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tight fart

Original Poster:

2,868 posts

272 months

Wednesday 18th January 2017
quotequote all
VEX said:
It is possible but the trade cost for a transmitter and even just 8 receivers is a lot higher than £1k.


V.
Don't forget this is only for a single hdmi channel, no need for a matrix, 8 way system cost approx £600 plus vat

No one seems to except that we have a system that works on 8?

VEX

5,256 posts

245 months

Wednesday 18th January 2017
quotequote all
I totally agree, you can do an HDBT Cat6 system point to multi point for £600 trade.

But although HDBT uses cat5/6 and will happily plug into a network patch panel, it isn't a data switch. They are two totally different technologies.

Hence me asking what it was you provided last time so we can research it. If you do have a solution using a standard data switch then you have a solution no-one else has found yet.

Happy to have a Pm if you want.

Just trying to help, having spent nearly 30 years in the industry.

V.

megaphone

10,694 posts

250 months

Wednesday 18th January 2017
quotequote all
OP can you tell us what kit you use to send and decode the HDMI signal, I'm intrigued to find out. Did you use an 8 way HDMI distribution box in the past? Rather than a network switch?

OldGermanHeaps

3,801 posts

177 months

Wednesday 18th January 2017
quotequote all
tight fart said:
Don't forget this is only for a single hdmi channel, no need for a matrix, 8 way system cost approx £600 plus vat

No one seems to except that we have a system that works on 8?
I believe you, i use the lenkeng adaptors and netgear switches to drive 10 displays at 1080p/60 for cctv images without any issue, apart from the high failure rate of receivers (5-10% first year failure) because chinatat, however the price compared to other solutions keeps it viable. Using gigabit switches, or cable economisers, you can send lan traffic down the same cables. As an experiment in the workshop i could create a matrix with multiple tx using managed switches and port based vlan but it was a faff tbh when cyp hdbaset stuff is so good.
Buying in quantity the adaptors were under £20 off alibaba. They encode in mjpeg and are pretty inefficient so the odd artifact is noticable and intermittant lip sync issues occur if you use them for watching tv content with fast moving scenes but for cctv they are fine. I'm sure once one of those enterprising chinamen reverse engineer/steal a good h265 hevc based design the hdmi distribution market will change dramatically. If you only need a cat5 solution not necesarrily ip transport layer the multimedia solutions poc extenders with tx hdmi loopthrough are great for £39 you can daisy chain as many as you need and lip sync and pq is awesome as long as every display has a common spec edid.

Edited by OldGermanHeaps on Wednesday 18th January 13:20


Edited by OldGermanHeaps on Wednesday 18th January 13:22


Edited by OldGermanHeaps on Wednesday 18th January 13:44

VEX

5,256 posts

245 months

Wednesday 18th January 2017
quotequote all
So I thought I would do some digging and found something on the Lindy site.

https://www.lindy.co.uk/audio-video-c2/extenders-c...

But it clearly states that it is for static images and desktops/presentations, so as a pro installer I wouldn't like to trust it with full HD Tv pictures and certainly not fast moving sport channels.

It does say use a layer 3 switch though.

Still waiting for OP to come back with what he is using, but one option could be using a 2 way HDMI splitter and feed a second 8way system identical to the one used before.


OldGermanHeaps

3,801 posts

177 months

Wednesday 18th January 2017
quotequote all
chasingracecars said:
Because what you describe can't work with the same thing you have described you need the 14 to work.

You want HDMI over Cat5 via a network switch. It cannot be done!
I have been fitting inexpensive hdmi over ip solutions using network switches for splitters, even going wireless with ubiquiti nanostations since late 2014, why do you say it cannot be done?
I first used one to get a 1080p cctv screen to an outbuilding with only a 3pair telephone cable going to it and the duct had collapsed so couldnt run more. Used 1 pair for the phone and the other 2 pairs for a 100meg lan connection (pins 1236) and we were golden.

Edited by OldGermanHeaps on Wednesday 18th January 14:05

OldGermanHeaps

3,801 posts

177 months

Wednesday 18th January 2017
quotequote all
http://www.lenkeng.net/Index/detail/id/130
The lindy ones look like they may just be the lenkeng in a different case for 5x the price.
They aren't unusable for general tv viewing, as the quality is still better than half the channels on sky/virgin that use low bitrates.

Edited by OldGermanHeaps on Wednesday 18th January 14:01

tight fart

Original Poster:

2,868 posts

272 months

Wednesday 18th January 2017
quotequote all
ash73 said:
They all want to know exactly how you do it so they can copy you smile
I know biggrin

VEX

5,256 posts

245 months

Wednesday 18th January 2017
quotequote all
ash73 said:
tight fart said:
No one seems to except that we have a system that works on 8?
They all want to know exactly how you do it so they can copy you smile
Lol, But even tight fart doesn't know how it works as he is asking for Switch advice!

There are plenty of other ways of doing this at even cheaper prices if needed, and we have done for clients.

Layer3 switches are a totally different beast to their unmanaged cousins, so there is a lot of info missing to be able to help.

Different projects need different solutions and that what keeps us on our toes and always learning as installers, I don't know where I will use these newly found products, but they'll have a use and I'll remember them when needed.

Everyday is a school day.

V.

megaphone

10,694 posts

250 months

Wednesday 18th January 2017
quotequote all
tight fart said:
ash73 said:
They all want to know exactly how you do it so they can copy you smile
I know biggrin
Excellent. By the way the best switches to use are MK.

OldGermanHeaps

3,801 posts

177 months

Wednesday 18th January 2017
quotequote all
megaphone said:
Excellent. By the way the best switches to use are MK.
Nah Schneider ultimate for me.

OldGermanHeaps

3,801 posts

177 months

Wednesday 18th January 2017
quotequote all
Layer 3 swith is only needed if you want to make an ip based matrix, just a 1 to many splitter wants to be unmanaged, especially if its being used for lan traffic too.

tight fart

Original Poster:

2,868 posts

272 months

Tuesday 24th January 2017
quotequote all
I spoke to the installer yesterday, I must admit I had my fingers crossed after the comments here,
All up and running, very happy customer.

VEX

5,256 posts

245 months

Tuesday 24th January 2017
quotequote all
Still completely confused by what you wanted to achieve, what it was that needed the solution, without the detail we obviously all went higher than needed.

Glad you sorted it.

V.

tight fart

Original Poster:

2,868 posts

272 months

Tuesday 24th January 2017
quotequote all
VEX said:
Still completely confused by what you wanted to achieve, what it was that needed the solution, without the detail we obviously all went higher than needed.

Glad you sorted it.

V.
Customer wanted hdmi from a single source (Sky box) to 14 tv's. Over cat 5/6 couldn't use hdmi leads due to length of cable runs.

chasingracecars

1,696 posts

96 months

Tuesday 24th January 2017
quotequote all
tight fart said:
Customer wanted hdmi from a single source (Sky box) to 14 tv's. Over cat 5/6 couldn't use hdmi leads due to length of cable runs.
OK, Great that is good news. Would you mind finding out what switch you used. Yes HDMI doesn't travel well on 10m+ cables. It would mean lots of customers of mine would get cheaper systems. I am sure there are few of us on her that would like to know how you managed this.