Which is positive and negative?

Ingwe

Ingwe

Joined
Feb 22, 2016
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i’m trying to fit a mifi in the van and replace the Vision Plus aerial with a Poynting aerial on the roof. I will use my existing Huawei router which has the necessary aerial sockets.
The Vision Plus has a 12v supply that I intend to use to power the Huawei but I’m wondering how to check the polarity of the Vision plus lead using a multi meter.
I’ve attached a photo of the lead and the Vision Plus if it helps? TIA
651FEF99-FCC5-4C9F-A5BE-BBBDBF5DAAC3.jpeg
3F046FF0-DC8E-4CC6-9D6F-B7FE38A8FE36.jpeg
 
Normally the centre pin is +ve but to check push the +ve terminal into the centre and hold the -ve against the outside sleeve.

EDIT just remembered the Vision Plus box normally has the polarity marked on the underside of it (next to the socket) and the centre pin is +ve on ours.
 
Gellyneck said:
Normally the centre pin is +ve but to check push the +ve terminal into the centre and hold the -ve against the outside sleeve.

EDIT just remembered the Vision Plus box normally has the polarity marked on the underside of it (next to the socket) and the centre pin is +ve on ours.
Click to expand...
Just checked and there are no + or - markings on the socket. But have tested and it is as you say. Thanks all👍

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I’ve now decided that the Huawei mifi is a bit long in the tooth and so I’ll get an upgrade. Any suggestions for a suitable mifi that has antennae ports, is ideally detachable (so we can take it out of the van as and when) and is 5g ready? Had a look on Motorhomewifi’s site and they have several packages but I don’t want to buy a package. Just want the router.
 
Not sure there are any 5g ready UK portable mifi units but interested to see if others have found any.
 
Gellyneck said:
Not sure there are any 5g ready UK portable mifi units but interested to see if others have found any.
Click to expand...
This is a screen shot of Motorhomewifi package offering 5g now package.

I'm happy to buy from MHWF again (got their iBoost system ages ago) but I don't want a whole package. Just want the router.
Screenshot 2022-03-17 at 13.55.41.png
 
Ingwe said:
The prices!!:oops:
Click to expand...
Ach, sweetie money for somebody from York!:giggle:

If I were you I'd have a look at the suggested benefits of 5g over 4g and access to the former particularly when out and about in the motorhome.

Might be worthwhile sticking with a 4g mifi unit (at a sensible price) until 5g roll out develops further?
 
Gellyneck said:
Ach, sweetie money for somebody from York!:giggle:

If I were you I'd have a look at the suggested benefits of 5g over 4g and access to the former particularly when out and about in the motorhome.

Might be worthwhile sticking with a 4g mifi unit (at a sensible price) until 5g roll out develops further?
Click to expand...
:ROFLMAO: There was a time when sweeties were made here. I used to work at Rowntree making KitKats years ago and my wife worked at Terrys (also years ago, before we met).

I'm sure you're right about sticking with 4g until prices drop. For our uses, 4g is more than adequate. It's just that when doing something to the van, you try and 'future-proof' it a little.

When we use it at our French house, we're lucky to get 3g! Actually, we're lucky to get electricity and water there sometimes. :giggle:(y)
Ach, damned first world problems!
 
I got a Teltonika RUT240, eBay seller refurbished and it's been fine and paired with A Poynting external antenna signal strength has been good. Also now use it in the house for internet. Link to one from the eBay seller below.
<Broken link removed>
 
I suppose 5g will make the little spinning buffering wheel spin that much faster. :LOL:
 
Ingwe said:
Thank you for this. Going to spend the whole time reading. Good displacement activity!;)
Click to expand...
If you're gonna be sitting reading all day you'll no need internet! Don't say I'm not looking after your funds for you!:giggle:
 
Gellyneck said:
If you're gonna be sitting reading all day you'll no need internet! Don't say I'm not looking after your funds for you!:giggle:
Click to expand...
I'm reading the internet links you kindly posted. Wish you hadn't mentioned sweeties now. Am craving a Kit Kat and we don't hold stocks.
 
Ingwe said:
i’m trying to fit a mifi in the van and replace the Vision Plus aerial with a Poynting aerial on the roof. I will use my existing Huawei router which has the necessary aerial sockets.
The Vision Plus has a 12v supply that I intend to use to power the Huawei but I’m wondering how to check the polarity of the Vision plus lead using a multi meter.
I’ve attached a photo of the lead and the Vision Plus if it helps? TIAView attachment 596755View attachment 596756
Click to expand...
The centre socket is always positive. The outer part which you can easily touch with your fingers is negative.
 
This router is very good and takes a sim
Huawei
B535-333, 4G+ 400Mbps LTE CAT

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Speve said:
This router is very good and takes a sim
Huawei
B535-333, 4G+ 400Mbps LTE CAT
Click to expand...
I’ll look it up. Do you know whether it has antennae ports?
 
I’ve got a Huawei B535-232 which has antenna sockets , similar to the above one.
I run it with a 12dc to dc buck to keep it at 12volts
 
Ingwe said:
I’ll look it up. Do you know whether it has antennae ports?
Click to expand...
Yes I bought a motorhome WiFi set up and fitted it myself it’s a cat 7 and picks up signals really well😊👍
 
Manic said:
I’ve got a Huawei B535-232 which has antenna sockets , similar to the above one.
I run it with a 12dc to dc buck to keep it at 12volts
Click to expand...
Please tell me what is a “12dc to dc buck?” Thanks.
 
Ingwe said:
Please tell me what is a “12dc to dc buck?” Thanks.
Click to expand...
It limits the voltage going to the device to 12 volts when the input power rises above that - which it will when the alternator kicks in and the system voltage climbs to 13 or 14 volts or more. A voltage control like this may be needed for a device designed for domestic use which is meant to run off a 12 volt adaptor.

Routers designed for mobile use like the Teltonika one I have can typically take a wide range of input voltages. Mine can cope with 9 to 30 volts. But Teltonika don't do 5g model yet although this doesn't bother me as I suspect it is only going to be available in a few big cities for some time. When it reaches the sticks I may look at it. :)
 
DBK said:
It limits the voltage going to the device to 12 volts when the input power rises above that - which it will when the alternator kicks in and the system voltage climbs to 13 or 14 volts or more. A voltage control like this may be needed for a device designed for domestic use which is meant to run off a 12 volt adaptor.

Routers designed for mobile use like the Teltonika one I have can typically take a wide range of input voltages. Mine can cope with 9 to 30 volts. But Teltonika don't do 5g model yet although this doesn't bother me as I suspect it is only going to be available in a few big cities for some time. When it reaches the sticks I may look at it. :)
Click to expand...
Do you mind telling me what Teltonika model you have and whether it has antennae sockets?
 
Ingwe said:
Do you mind telling me what Teltonika model you have and whether it has antennae sockets?
Click to expand...
It's the RUT955 which has twin antenna sockets. In hindsight it is a bit of overkill as it takes 2 sim cards which I don't need. They do other similar models for single sim cards which may be more suited to a typical MH installation.

But mine has worked well connected to a Poynting antenna.
 
DBK said:
It's the RUT955 which has twin antenna sockets. In hindsight it is a bit of overkill as it takes 2 sim cards which I don't need. They do other similar models for single sim cards which may be more suited to a typical MH installation.

But mine has worked well connected to a Poynting antenna.
Click to expand...
It’s the Poynting antenna I’m getting. Thanks for the input.

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