[asterisk-users] ATA for large networks

[Lafras Henning]

Hi Asterisk user-list,
I know this sort of mail is frowned upon and I would not normally send 
it, but as it is very topical to the current thread, I hope it may have 
value for some.

Xietel is in the field testing phase of a modular channel bank that 
would be ideal for this application  –  100's of existing points that 
has to be converted to asterisk.

Basic features:
	Fxo+Fxs ports.
	Scalable from 4 to 64 ports per channel bank.
	Wall mount unit
	Compact 300mm x 200mm x 100mm deep.
	TDMoe protocol
	AIX protocol planned
	1000m extension cable length.	

Benefits
	*Locate 100's of ports in one location on legacy cable.
	*Install new banks at point of use –
	  use single cat 5 link cable instead of 20/50 pairs cat3.
	*Reduce lightning risk for outdoor extensions by
           using Fiber optic between buildings.

Requirements.
	*Use a sperate - dedicated TDMoE network.

	
Expected pricing
	$2395 US for 48 ports
	$1395 US for 24 ports

Availability
	Q1 2009	


Regards
Lafras

www.xietel.com


Vinícius Fontes wrote:
> I installed a few Spidermux units on some clients. It works fine, but I had some trouble with cordless analog phones connected to it. The ring voltage is pretty low and that caused some phones to not ring at all. And the ring voltage isn't configurable.
> 
> Aside from that, it is a good product. Too bad it's the only TDMoE channel bank (that I know of, at least).
> 
> Atenciosamente,
> 
> Vinícius Fontes
> Núcleo de Tecnologias Convergentes
> Canall Tecnologia em Comunicações
> Passo Fundo - RS - Brasil
> +55 54 2104-7000
>  
> Convergent Technologies Core
> Canall Tecnologia em Comunicações
> Passo Fundo - RS - Brazil
> +55 54 2104-7000
> 
> ----- "Vieri" <rentorbuy at yahoo.com> escreveu:
> 
>> Thanks for the feedback.
>>
>> I'm particularly curious to know if anyone has tried a TDMoE channel
>> bank. Spidermux seems to be one of the few vendors available. It's the
>> closest I can get to an "ATA"-like device (ie. no special hardware,
>> just ethernet) and it also offers an easy failover mechanism to
>> another Asterisk server on the LAN.
>> So I'm wondering why TDMoE channel banks aren't that popular (am I
>> wrong?)? Is Asterisk's native TDMoE implemntation unreliable?
>> Has anyone tested Spidermux or other TDMoE channel bank manufacturer?
>>
>> "Standard" channel banks become expensive when one has to buy the
>> T1/E1 PCI cards on the Asterisk server. Since most channel banks
>> interface with T1 (24 channels) and if I have about 350 analog phones
>> to connect then I'd need around 15 T1s (that's about 4 quad-pri T1
>> cards which of course require 4 PCI slots and a fair amount of cash).
>>
>> Xorcom's Astribank is something in-between. It doesn't require PCI
>> slots or T1 cards but connects via USB. Just like T1 channel banks,
>> Astribanks don't  seem to offer an easy failover mechanism like in the
>> TDMoE solution (correct me if I'm wrong). However, a potentially
>> higher number of astribanks can be "cheaply" connected to a single
>> Asterisk server via several USB ports. I'm wondering how many 24-FXS
>> astribanks can be connected via USB 2.0 to a single 4-USB-port
>> server.
>>
>> Of the three solutions I'd try the TDMoE device but I'm wondering why
>> noone in this thread even mentioned the protocol.
>>
>>
>>
>>       
>>
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