Technical > Photos of Broadband gear > New PoP install (more cable tieing)

New PoP install (more cable tieing)

The gear

The antenna

nice install.... so what is this equipment used for? very good gear -- i assume something more than just inet access?

also, what is this site? i assume not a telco or colo?? i see a -48v rectifier in the rack... isn't the -48v stuff a bit pricey to instal in a AC environment? how come no AC power supplies in the aclatel stuff? i beleive they make them equipped with AC 110/208v.

overall -- looks good... looks like will download as fast as possible! -lol
--
Sean.Brown@clearlinknetworks.com

CLEAR LINK Networks, Inc.

319 Clematis Street

Third Floor - Suite #301

»www.clearlinknetworks.com


(561)253-6500

reply to TomS_
That's Alcatel-Lucent's flagship microwave, the MPR9500. Basically, a router with microwave cards in it.

Alcatel is carrier class equipment (you know this though), so all of their microwaves are 48 volt plant powered, at least the ones i have been dealing with. I personally prefer the 48VDC plant over the AC utility powered systems.

reply to TomS_
As AMD Phreak said, its only 48v DC, no AC power supply option available for this gear unfortunately. Though I guess you could consider this rectifier setup the AC option.

The switch is AC powered, however. But the switch doesnt sit in the path of the main flow of traffic which is in over fibre, and out over microwave. The switch sits on an AC UPS, but if we lose AC power we only lose management access to the radio and other devices at the site, which is not a major concern, otherwise we'd have an inverter there aswell to power the switch.

And yep its the 9500MPR platform. They are pretty nice radios. Normally you'd find these sorts of radios doing cellular backhaul, but we dont do any TDM, everything we do is IP. The 9500MPR is targeted at the TDM to IP migration scene. They are an all packet radio, supporting TDM pseudowire cross connections, meaning carriers can still support their existing TDM infrastructure, and move to IP when the need arises.

This site sits in between the major hub site featured in a previous thread, and the PoP featured in the other thread (the cable lacing one). Unfortunately we didnt have direct LoS from one to the other, so this one sits off on the side a bit in a location where we do have LoS, and also fibre backhaul available. This site is in the comms/record room at the local council depot. The other site (cable lacing) is in the council server room at their HQ. We have a good relationship with the council in this area, so weve been able to colo our gear in their facilities.

This link will eventually form the replacement backhaul link for the one mentioned in the hub site thread (the one that goes via a repeater outside the city). While theres nothing wrong with that other link per se, we just cant scale it economically, so its got to be replaced with one we can.

Very nice!

What frequency is the backhaul running at and how long is the link?

He says it's 18GHz. I would imagine that's good for 50 miles or so with the right antennas and good LOS.

At 18ghz one wont be going very far, maybe 20 to 25 miles depending on antenna sizes and eirp limits.

50 mile or greater hops usually are 4 to 6ghz or somewhere around that. The propegation characteristics of the lower frequencies make them ideal for long hauls.

reply to TomS_
This one is only a couple of KMs, 5 at most.

We are building some links which are 60km each (about 37mi), these operate in the 6U band IIRC. There are 3 in total, so about 180km or 112mi.

112 miles is a decent sized route. Are you doing a lot of add/drop at each site?

A couple of VLANs will be add/dropped at each site via an Alcatel 1662SMC connected to each 9600LSY radio (for that build).

The build in this thread is native ethernet, so no need for ADMs.

Very nice

reply to TomS_
I have been trying to find the lacing bar you used here. Just wondering if this is it.

»www.rackmounts.com/LBP-1R-LBP-1.···816.html
--
Open Source WAN Accelerator
»trafficsqueezer.sourceforge.net/

For cable management product they are cheap. Not trying to hijack your thread, but I have been trying to cleanup the wiring in my server cabinets, and seeing how nice those bars keep the wiring in your post gave me an idea on how to keep the network, and power cables nice an tidy in my cabinets.
--
Open Source WAN Accelerator
»trafficsqueezer.sourceforge.net/

reply to TomS_
What model of Eaton DC power unit is this unit? Cost?

Looks like the APS3. »powerquality.eaton.com/DC-Power/···cess.asp

Here's the chassis for it. »cgi.ebay.com/NEW-APS3-059-CHASSI···294%3A50

reply to aeronet
That would be it.

reply to yaplej
I like the round lacing bars over the square/flat bars. Unless you are tieing down 4 or more cables to the flat bars it's difficult to get the cables snugged. I usually order them from Milestek.

reply to Vaprotan
ouch.. kinda out of my budget

can anyone recommend a similar product in the $1k range?