Cisco switch

Why not just mention the name of the company - google can do the rest. Correct me if i'm wrong but posting links etc is not allowed but mentioning a company name should be ok...

Peder,

if you open Chag’s profile in the top right you should see a button marked “+ Post to this wall”. 

Press that button and off you go.

james n posted:

Why not just mention the name of the company - google can do the rest. Correct me if i'm wrong but posting links etc is not allowed but mentioning a company name should be ok...

◾James n, maybe....I have just spend some time reading the forum rules again,maybe I can do that maybe not. I shall check again, maybe I read the rules to fast ????.

But people often write here,....."a well know'n action-site or flea-bay" insteed of the name.So it's because of that.

/Peder ???? 

sjbabbey posted:

Peder,

if you open Chag’s profile in the top right you should see a button marked “+ Post to this wall”. 

Press that button and off you go.

Thank's ????????????,now Chag has the message.

Thank's again,Peder ????.

Hi Peder, SJBabbey; Thank you so much for addressing my request and facilitating. I am now responding to Peder’s private message. Best of luck to you all. ????

Chag -

Chag... posted:

Hi Peder, SJBabbey; Thank you so much for addressing my request and facilitating. I am now responding to Peder’s private message. Best of luck to you all. ????

Chag -

Not so much private to you a Peder, but only accessible to members rather than the whole of the world! I got mine from UsedCisco with the same testing. Don’t know about returns though.

Phil

Filipe posted:

Chag... posted:

Hi Peder, SJBabbey; Thank you so much for addressing my request and facilitating. I am now responding to Peder’s private message. Best of luck to you all. ????

Chag -

Not so much private to you a Peder, but only accessible to members rather than the whole of the world! I got mine from UsedCisco with the same testing. Don’t know about returns though.

Phil

Phil,as you say...not so private ????,only for our forum-friends,not the whole world. But Chag can now send me a mail so we can talk more in private.

I buy from this company because of their 26 step data-test program,life-time warranty.....and if I sell it,the new owner has three years warranty.Simon say this cisco's are "tanks",but if I have some problems with it....they send me a new one directly.That before I have send my cisco back to them. And if I will buy another cisco,they buy this back as a part in the deal.

They also pick up the latest made, they have in stock for me/us. You also get your own account manager, who give you service and can take care of problems you might have. But I think the company you buy your cisco from also is good.

/Peder ???? 

Peder posted:

Filipe posted:

Chag... posted:

Hi Peder, SJBabbey; Thank you so much for addressing my request and facilitating. I am now responding to Peder’s private message. Best of luck to you all. ????

Chag -

Not so much private to you a Peder, but only accessible to members rather than the whole of the world! I got mine from UsedCisco with the same testing. Don’t know about returns though.

Phil

Phil,as you say...not so private ????,only for our forum-friends,not the whole world. But Chag can now send me a mail so we can talk more in private.

I buy from this company because of their 26 step data-test program,life-time warranty.....and if I sell it,the new owner has three years warranty.Simon say this cisco's are "tanks",but if I have some problems with it....they send me a new one directly.That before I have send my cisco back to them. And if I will buy another cisco,they buy this back as a part in the deal.

They also pick up the latest made, they have in stock for me/us. You also get your own account manager, who give you service and can take care of problems you might have. But I think the company you buy your cisco from also is good.

/Peder ???? 

Thanks for the info Peder, I just spoke to David who was very helpful and he will email me prices later. Which actual model do you buy - the standard 2960 8TCL? I see there is also a 'G' version which I presume is gigabit 

Mercky....????????,...thank's ????.

We/I,go for the,....◾Cisco WS-C2960-8TC-L◾.The model that is recommended by Simon.

Simon know all about this,so it would be foolish not to listen to Simon's advice.

David is very helpful and kind,did he tell you that he is from Sweden,...Gothenburg ❗ ....but living in Holland. We talk to each other on the phone,almost an our last friday. I had another account manager before David,....Peter is his name.....also very good. But because I am from Sweden,David take over so we can talk swedish together ????????????.

I have educate them a little about high end hifi,and what we shall have the Cisco's for ????????????. Told them about Simon,and his advice,and so on.

/Peder ???? 

Is there any difference between the normal grey 2960's and the compact white versions? They're both called 2960TCL

Go for the blue one. 

Mercky posted:

Is there any difference between the normal grey 2960's and the compact white versions? They're both called 2960TCL

I presume you mean the greyish blue version vs the white one. The latter is just newer, and is actually a little larger (deeper) than the old version. There are also numerous variations in function, some have PoE, different numbers of uplink/SFP ports etc. 

The white ones, being newer, usually go for higher prices, but either is fine. I've used both, and they both seem to work well, although I've never attempted a rigorous sound quality comparison!

Thanks, yes I meant the blue/grey version

ChrisSU posted:

There are also numerous variations in function, some have PoE, different numbers of uplink/SFP ports etc. 

Thanks to Peder I am now in contact with his supplier. I am aiming at both the Catalyst WS-C3560-8PC and WS-C2960-8TC-L as recommended by Simon.????

Now, I would tend not to support PoE as it only aims at removing the need and costs of wall power and cabling. Doesn’t it add risks of RFI for that matter? Shouldn’t we opt in the end for LPS for these critical switches in the last meter before our precious network players and ultimate DACs?????

Finally, as we have addressed speed rate requirements, should we also consider minimum specs for memory capacity?????

Chag -

Mercky posted:

Is there any difference between the normal grey 2960's and the compact white versions? They're both called 2960TCL

Sonically, no difference at all. I've posted previously on the testing i did with differant models. The white are just newer and in some models support Gigabit Ethernet.

Chag... posted:

ChrisSU posted:

There are also numerous variations in function, some have PoE, different numbers of uplink/SFP ports etc. 

Thanks to Peder I am now in contact with his supplier. I am aiming at both the Catalyst WS-C3560-8PC and WS-C2960-8TC-L as recommended by Simon.????

Now, I would tend not to support PoE as it only aims at removing the need and costs of wall power and cabling. Doesn’t it add risks of RFI for that matter? Shouldn’t we opt in the end for LPS for these critical switches in the last meter before our precious network players and ultimate DACs?????

Finally, as we have addressed speed rate requirements, should we also consider minimum specs for memory capacity?????

Chag -

If a SNAIC can send DC down a cable that carries an audio signal, I don't see why an Ethernet cable can't carry DC as well as audio data. Also, you eliminate at least one PSU altogether, by powering one device from another. 

The Catalyst switches nearly all have a built in PSU, so you can't upgrade it. I believe they are electrically very quiet, so replacement with an external supply is not something I would bother with.

If, by 'speed rate' you mean gigabit rather than 100mb fast Ethernet, no, I think 100mb is more than enough. Naim presumably agree, as all their streamers support only 100mb. I suspect this might be less electrically noisy due to lower power consumption, so this could be a design choice by them.

I'm using PoE to power my wireless access point with no degradation to the sound quality. I've used the low numbered ports for the audio kit and the PoE active port is at the other end and the cables are routed separately.

Well, I took the plunge, and ordered a $29 Cisco switch today off eBay. Will be interesting to see if any difference from the 24 port fan less Trendnet I got recently for the whole house to congregate in one point. It has a similar looking power supply as the Cisco, and I thought it was better sounding than the Netgear with ground shunt I was using as a subnet. Oh well, the last bit of tweakery I will do on the network front, and I'll check back in with a report once I get it. 

Chris, you could argue that the SNAIC is designed for carrying audio signal and DC power in different and well separated if not isolated conductors. It is not the case with Ethernet cable. Now this being written I would concede that low voltage DC may not induce important EMI if kept constant. This is what you and others seem to assert. I accept this and will then go for PoE without much more hesitation. Thanks. ????

Chag -

Chag, I’m not a network engineer, and wouldn’t claim to have much knowledge or expertise here, so maybe don’t take my suggestions as gospel! PoE sounds like a neat idea to me, I’d be tempted to give it a try, but my Cisco switches are linked by fibre optic cables, and I’m fairly sure DC won’t travel down them!

Regarding separation, I would guess that you could perhaps use one port/cable for power, and another for data. Maybe?!

Chag... posted:

Chris, you could argue that the SNAIC is designed for carrying audio signal and DC power in different and well separated if not isolated conductors. It is not the case with Ethernet cable. Now this being written I would concede that low voltage DC may not induce important EMI if kept constant. This is what you and others seem to assert. I accept this and will then go for PoE without much more hesitation. Thanks. ????

Chag -

Chag, It’s the changing current that creates the changing magnetic field. The current at constant voltage will be proportional to the power/energy being drawn, which may or may not be constant. Unlikely that PoE is used for analogue audio signals. Probably ok.

Phil

Thank you all for addressing the questions of a neophyte. What are the latest views on routers, the other end of the lines?????

Chag -

rjfk posted:

Mercky posted:

Is there any difference between the normal grey 2960's and the compact white versions? They're both called 2960TCL

Sonically, no difference at all. I've posted previously on the testing i did with differant models. The white are just newer and in some models support Gigabit Ethernet.

I have a feeling that some of you will feel regret later if you do not go for the gigabit version.

Been following this thread with interest and doing some research only to find that these sometimes blue, sometimes white switches come in various flavours, which only get more confusing as you try to decipher the various models. Luckily for me, you've made my search easier by clearly indicating the model to seek out. So, going to try this myself and get a WS-C2960-8TC-L.

Frank Yang posted:

rjfk posted:

Mercky posted:

Is there any difference between the normal grey 2960's and the compact white versions? They're both called 2960TCL

Sonically, no difference at all. I've posted previously on the testing i did with differant models. The white are just newer and in some models support Gigabit Ethernet.

I have a feeling that some of you will feel regret later if you do not go for the gigabit version.

???? WHY...❓❓ 

/Peder ????