[177883] in North American Network Operators' Group
Re: Low cost WDM gear
daemon@ATHENA.MIT.EDU (Rodrigo 1telecom)
Sat Feb 7 15:23:24 2015
X-Original-To: nanog@nanog.org
From: Rodrigo 1telecom <rodrigo@1telecom.com.br>
In-Reply-To: <68212b43-4395-4567-929c-29cb6fad21d1@me.com>
Date: Sat, 7 Feb 2015 17:24:43 -0300
To: Kenneth McRae <kenneth.mcrae@me.com>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
What others vendors do you using? Here in Brazil only PADTEC have this passi=
ve solution... Some days ago Digitel contact me to show your multiplex solut=
ion... Is a active solution...
We import this from fiberstore, but i don't know others vendors to buy 10G s=
fp+ cwdm and this mux/demux...
Enviado via iPhone =EF=A3=BF
Grupo Connectoway
> Em 07/02/2015, =C3=A0s 16:04, Kenneth McRae <kenneth.mcrae@me.com> escreve=
u:
>=20
> Hi Enviado,
>=20
> I cannot recommend FiberStore as I had a bad experience with them. I need=
ed to cover only 3km from A to B side. When using 10km optics, I saw a loss=
of over 5db with their passive mux inserted into the path which created a t=
otal loss of over -20db which is outside of the tolerances for our equipment=
with 10km SFP+. Using another vendors low insertion loss mux corrected our=
issue. I am sure if you are using an 80km optic, you may be able to tolera=
te a higher insertion loss to cover < 60km. I also notice that their CDWM o=
ptics averaged about 3db less in power output when compared to other vendors=
.
>=20
> Thanks
>=20
> Kenneth
>=20
>> On Feb 07, 2015, at 10:33 AM, Rodrigo 1telecom <rodrigo@1telecom.com.br> w=
rote:
>>=20
>=20
>> Hi kenneth... which the distance do you have from side A to side B when y=
ou using passive solutions from fiberstore( mux and demux)?
>> I buy this mux and demux(4 channels single fiber) and only make a test ab=
out 60km( mux side A and demux on side B) with sfp+10gb for 80km... ( only s=
ee ddm on my ex3300( about -19db for 60km). Test switch access with ssh and p=
inging tests...
>> What kind os issue do you have? For distances less than 60km is this solu=
tion good?
>> Thanks!!!
>>=20
>> Enviado via iPhone =EF=A3=BF
>> Grupo Connectoway
>>=20
>>> Em 07/02/2015, =C3=A0s 14:55, Kenneth McRae <kenneth.mcrae@me.com> escre=
veu:
>>> Mike,
>>> I just replaced a bunch of FiberStore WDM passive muxes with OSI Hardwar=
e equipment. The FiberStore gear was a huge disappointment (excessive loss, p=
oor technical support, refusal to issue refund without threatening legal act=
ion, etc.). I have had good results from the OSI equipment so far. I run pas=
sive muxes for CWDM (8 - 16 channels).
>>> On Feb 07, 2015, at 09:51 AM, Manuel Mar=C3=ADn <mmg@transtelco.net> wro=
te:
>>> Hi Mike
>>> I can recommend a couple of vendors that provide cost effective solution=
s.
>>> Ekinops & Packetlight.
>>> On Saturday, February 7, 2015, Mike Hammett <nanog@ics-il.net> wrote:
>>> I know there are various Asian vendors for low cost (less than $500) mux=
es
>>> to throw 16 or however many colors onto a strand. However, they don't wo=
rk
>>> so well when you don't control the optics used on both sides (therefore
>>> must use standard wavelengths), obviously only do a handful of channels a=
nd
>>> have a distance limitation.
>>> What solutions are out there that don't cost an arm and a leg?
>>> -----
>>> Mike Hammett
>>> Intelligent Computing Solutions
>>> http://www.ics-il.com
>>> --
>>> TRANSTELCO| Manuel Marin | VP Engineering | US: *+1 915-217-2232* | MX: *=
+52
>>> 656-257-1109*
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