TTL <->RS485 converter 321L485

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Donatas

New Member

• May 18, 2015

• #1

need simple help. white wire TE. what is TE? i don't found about week in googling. i want to connect to arduino uno but im afraid i dont understand something...

 

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Last edited: May 18, 2015

Ian Rogers

User Extraordinaire

Forum Supporter

Most Helpful Member

• May 18, 2015

• #2

TE is for RS485... "Transmit enable" it is used to disable the receiver whilst the transmitter is being used..

 

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Donatas

New Member

• May 18, 2015

• #3

Ian Rogers said:

TE is for RS485... "Transmit enable" it is used to disable the receiver whilst the transmitter is being used..

Click to expand...

ty

 

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Donatas

New Member

• Jul 11, 2015

• #4

transmision enable is just power up TE? and what voltage i must use 5 or 12 volt ? i dont found any info of this converter

 

Ian Rogers

User Extraordinaire

Forum Supporter

Most Helpful Member

• Jul 11, 2015

• #5

On a RS485 driver chip when the TE is low you can receive.... Once you make it high then you can transmit... but I have no way of knowing the voltage also.... Rx and Tx should be TTL, which on an embedded system is usually 5v... I should try with 5v first...

 

MaxHeadRoom78

Well-Known Member

Most Helpful Member

• Jul 11, 2015

• #6

From P3 it would appear that TE would be 0 - 12v?
Max.

 

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Donatas

New Member

• Jul 12, 2015

• #7

im afraid to test it in 12 volt