Telit cellular module pins need to be connected to a test point why?

M

maryammagdy

New Member

• Dec 26, 2018

• #1

Hello, Why is it written in datasheet that some pins should be connected to a test point? I'm using the Telit UE910 cellular module, In the datasheet it is written that all pins are can be disconnected except some pins which are needed to be connected to a test point. Do I have to connect those pins even if I'm not using them? Can I just leave them unconnected?

Thanks

 

mbarazeen

Member

• Dec 26, 2018

• #2

Test point pins could be an extension to test. not necessarily be connected as I believe.

 

NsrMagazin

Member

• Dec 26, 2018

• #3

If the datasheet says explicitly that they should be connected, they should be connected. Check the typical application inside of the datasheet.

 

M

maryammagdy

New Member

• Dec 27, 2018

• #4

Another question please, when I connect to a test point just because the datasheet says it shouldn't be left unconnected do I have to connect it to an empty test pad or it just need to be soldered?

 

JimB

Super Moderator

Most Helpful Member

• Dec 27, 2018

• #5

Why don't you post a copy of the datasheet here so that we can see what it says?

I had a look at the Telit website, it wanted me to login to see the datasheet. Why would I bother to do that?

The more info you provide, the better the advice you receive.

JimB

 

M

maryammagdy

New Member

• Jan 11, 2019

• #6

Tried uploading the datasheet but says its too large. Here is a picture of where the datasheet says some pins have to be connected to a test point

 

Attachments

• nikobnio.png

  213.6 KB · Views: 271

Nigel Goodwin

Super Moderator

Most Helpful Member

• Jan 11, 2019

• #7

If it says to connect to a test point, then presumably the idea is so you can 'test' something from that point.

 

NsrMagazin

Member

• Jan 11, 2019

• #8

It has to be certainly connected. Here are the details:
https://en.wikipedia.org/wiki/Test_point

 

mbarazeen

Member

• Jan 11, 2019

• #9

Though it may not be useful for you to have these test points connected, what is stated in the sheet is to comply with manufacturing standard to have connectivity for factory test or troubleshooting. it will not affect the operation in your case.