IP DECT vs Wi-FI Question

[trinetintl]

Hello everybody, I am looking for some field experience, I need to prepare a proposal for a customer that for the moment is interested on adding a single wireless phone that his IPO 500 V2 Rel. 7.0.23, what do you guys recommend IP DECT or WiFi?
This solution is for a cold storage facility that has small refrigerated warehouse within the main larger warehouse the total size is about 18,000 sqft. I need the least expensive solution that I can easily expand in the future… the warehouse currently does not have Wi-Fi.
Is the DECT antenna coverage better than let’s say a CISCO or Aruba antenna?


RE

http://www.trinet-intl.com

APSS - SME
ACIS - SME

 

[Greybeard191]

DECT coverage should be quite a bit higher than wi-fi. DECT runs at 1.9 Ghz, and the lower the frequency the better the range AND the penetration of obstacles.

We've installed DECT compact base stations on a 12" reinforaced concrete wall and had the back lobe provide excellent coverage through the wall into a store front. The single biggest problem we run into with DECT installs is typically the 100m limit on ethernet off POE.

Wi-fi is usually at either 2.4ghz or higher, coverage is much worse, unless you get very directional.

Best thing is to do some kind of site survey. If you have the kit, you can us an IPO/accesspoint/dect phone to do a survey.

GB

 

[tlpeter]

Refrigerated warehouse will be a no go for dect and Wifi.
This is because of the insulation of those big fridges.
It just won't work!

BAZINGA!

I'm not insane, my mother had me tested!

 

[hairlessupportmonkey]

I think if you put a base station into a housing with some sort of heater into the refrigeration units, you will be OK. DECT is your best option.

Wifi might be useful as you can drill a hole for the antenna into the unit but battery life on wifi isnt good.

ACSS - SME
General Geek

 

[tlpeter]

HSM, you can do that but then you have no roaming at all.
These kind of situations are a pain in the ass to build and maintain.


BAZINGA!

I'm not insane, my mother had me tested!

 

[daveinwearside]

i have just surveyed a site with massive fridges, the base stations cant go in the fridges because they were too cold (-37 c) but the external antennas could be placed inside the fridge with the base station on the other side of the insulated wall, giving coverage and roaming.

ACSS SME
APSS SME

 

[Greybeard191]

The WAP's need to be able to see each other as well. Are you sure you can get roaming coverage by sticking the antenna inside the fridge?

Might work if you used the optional dual omni antennas on a BS340, put one inside the fridge and one outside. But this WAP and antenna configuration is only available outside NA.

GB

 

[trinetintl]

Sorry for the delayed response, I was out on the field most of the day yesterday and I will be out most of the day today. I am still a bit confused because from a budget perspective for a single phone it is less expensive by far to implement the Spectralink/Wi-Fi solution than it is DECT with the added benefit that it gives you the option to provide the customer with Wi-Fi in case they want to use hand held computers. These refrigerators are not that cold and I believe the access points should not have any problem surviving just tied to the structure up in the ceiling.

Which solution do you guys feel more comfortable implementing?
Which solution is the most reliable one, the one with the least amount of implementation and maintenance problems?
Which solution the customer usually likes more?



RE

http://www.trinet-intl.com

APSS - SME
ACIS - SME

 

[nerdherder27]

I would have an idea for you!
to start .. I tell you that my experience comes from the dect ericsson ..
my advice is to wait the arrival of the R8 because by that time the IPO will support IP-DECT gateway which is essentially a gateway to traditional DECT cells (eg, BS 330 BS 340 IPDECT NOT) because I tell you this, the cells dect are much more resistant to cold and heat, will carry the following specifications:

BS 330:

Dimensions 7.87” x 6.5” x 2.2”
Weight 17 oz.
Material aBs moulded plastic
Color light grey
Operating temperature -50 to 131 °F
storage temperature -40 to 158 °F
relative operating humidity 15 to 90%, non-condensing
relative storage humidity 5 to 95%, non-condensing
Operating voltage 21 to 56 Vdc
Power consumption typical 3 W, maximum 5 W
rF output power (e.r.p.) 19 dBm to 24 dBm
receiver sensitivity -86 dBm at B.e.r. = 10-3
eMC standard FCC Part 15


IPDECT:

Environmental
Operating temperature: -10°C to +55°C
Storage temperature: -40°C to +70°C
Relative operating humidity : 15 to 90%, non condensing
Relative storage humidity : 5 to 95%, non condensing
Immunity to electromagnetic fields: 3V/m (EN61000-4-3)
Immunity to ESD: 4 kV contact discharge and 8 kV air discharge (EN61000-4-2)


Furthermore, I suggest you put them in a box insulated ..
However in the end because I recommend DECT is better in coverage and services that are not seen to underestimate your need!
"server AIWS and cordless DECT ATEX 3740 3749 man-down function