Mutiplexing E1 over Ethernet 100B-FX

Archived from groups: comp.dcom.lans.ethernet (More info?)

On 5 Sep 2004 20:42:37 -0700, kmatpral@yahoo.com (Kott) wrote:

>Hello
>Are there any of the shelf chipsets that allow for taking E1 lines (
>2 0r 4) and 2 Ethernet lines and putting them out on a Fiber 100B-FX
>and vice versa?
>
>Does any body have any experience doing this ?

IIRC, http://www.cyntila.com/ had a product that did just this. It
just had an E1 PHY chip, a couple of SLICs for POTS ports, an Ethernet
PHY and an FPGA to glue it together. Sounds simple, but as always,
some engineering is required to make a viable product.

If doing it yourself, please remember that E1 (or any other telecoms
interface) has very strict timing requirements that need to be met.
Ethernet wasn't designed for timing delivery, and doesn't guarantee
any particular time of flight through a LAN (particularly if a switch
is used). Your design must take this into account.

Regards,
Allan

You can use this TDM (E1) over converter: http://www.ad-net.com.tw/index.php?id=26

and to get FX, any of those: http://www.ad-net.com.tw/index.php?id=14

so, by those 2 devices, the question is solved easily.