maddison at lightbound
Nov 6, 2009, 8:51 AM
Post #3 of 3
(691 views)
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What's the dB loss of the fiber (@1310 and 1550) between the 2
buildings?
The DS1 cards are a waste of a VT matrix port, just get additional XM6
capacity if necessary and use an external mux like an Adtran MX2800.
You'll also need the EIA cards that go on the back of the shelf (either
a 15454-EIA-1BNCA24= or a 15454-EIA-1BNCB24=)- by default the 15454 has
no actual physical connectors.
If you want to transport DS3s, I'd recommend also getting a
15454-DS3-12= card since those ports are _much_ cheaper than XM6 ports.
Do you actually need to do transmux DS3s? XM6 is only really _needed_
when you want to do cross connects at a DS1 level, if you just need to
transport DS1s between the 2 buildings without needing to switch them to
different timeslots, you could get by with MX2800s hanging off the
DS3-12 cards (you'd just build a DS3 between the DS3-12s on either end,
also if you don't need to do cross connects at the DS1 level you could
get away with XC cards instead of XCVTs- however if you need to take
circuits in from carriers on OC3/channelized DS3 you'd still need XCVT
and XM6 cards).
~Matt
> -----Original Message-----
> From: cisco-nsp-bounces [at] puck [mailto:cisco-nsp-
> bounces [at] puck] On Behalf Of Michael K. Smith - Adhost
> Sent: Friday, November 06, 2009 11:38 AM
> To: troy [at] i2bnetworks; cisco-nsp [at] puck
> Subject: Re: [c-nsp] Cisco 15454 question
>
> > Hi all,
> >
> > I am hoping to gain some insight from some of the people who have
> done
> > this type of thing before. I am setting up a 24 strand fiber
> connection
> > between two facilities. I will be doing GigE on 4 strands and
placing
> > the
> > Cisco 15454 with OC48 cards on 4 strands of fibers.
> >
> > What I need to do is be able to cross connects circuits at the DS1,
> DS3
> > and OCn level between the two facilities. Below are the cards that I
> > have
> > spec'd for this. Can anyone tell me if I am missing anything? Assume
> > that
> > there are protect cards for each and I know I do not have any
> OC3/OC12
> > cards for the OCn cross connects(We would add these later). I also
> know
> > that I need the correct backplane cards for DS1 and DS3 handoff.
> >
> > 15454-OC48IR1310 1310nm OC48 cards
> >
> > 15454-DS3XM-6 6 port DS3 transmux cards
> >
> > 15454-DS1N-14 14 port DS1 cards
> >
> > 15454-TCC+ Timing and control cards
> >
> > 15454-XC-TV Cross connect cards
> >
> > 15454-FTA3
> >
> > Any input on what I am missing or if there are better cards to use
> > would
> > be great.
> >
> You will need GigE cards. It appears you're going for old (read,
> EOS/EOL) equipment, so you will most likely be looking at the E1000-2
> cards. Also, you won't be running the GigE specifically across
fibers.
> Instead, you will carry the GigE circuits within your backbone OC-48's
> as an OC-24 (actually concatenated OC-12's). So, you will need to
> think
> about the number of OC-48 cards you need to do this.
>
> Regards,
>
> Mike
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