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REZA MALHAVI

Sep 8, 2017
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I have a sensor that connected like this, please help me about 2 wire connection, what is the type of 2 wire connection?

ss.jpg


[image fixed by moderator ... it was way too big]
to the OP ... in future resize images to a max of 1024 x 768 and a max of 100kb
 
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73's de Edd

Aug 21, 2015
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Sir REZA MALHAVI . . . . .

What is the type of 2 wireconnection?

Looking a the wording of core on the left and the word shield on the right, is being the use of a shielded cable between the diode sets and the RS232 connector.

The illustration serves both as a pic of the cable type AND the manner of a very neat extraction method of the inner core wire from the shielding as well asalso then leaving a neat shield pigtail . . . . WITHOUT destroying many of the shield strands.
Also, you want to go right up to the diode pair and leave minimum diode wiring exposed . . . or you would have defeated the purpose of the use of shielded interconnect wiring.


Shielded wire with its outer braided shield and inner core wire . . . .

figure5.jpg



What it cannot "tell" you is that you initially push the braiding down such that it greatly expands apart, and leaves big X cross gaps and you then spread an X crossing even further apart such thatt you can then get a . . . .needle / wire hook . . . down inside to flick a folded loop of the wire out, then you pull that wire end out totally, The pic is showing the mid state of that operation.

73's de Edd


 
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duke37

Jan 9, 2011
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The RX connection has a two diodes connected back to back so will never pass any current.
 

REZA MALHAVI

Sep 8, 2017
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Sep 8, 2017
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Do you mean the type of wire or the discrete devices circled?
the sensor use mod-bus protocol , I want to read sensor data by an Arduino. I don't know that the 2 wire connection is RS485 or other connections.
you can see the sensor that connected by infrared then 2 wire output and rs232 interface .
please help me about this type of connection.
 

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    sensor.JPG
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REZA MALHAVI

Sep 8, 2017
6
Joined
Sep 8, 2017
Messages
6
Sir REZA MALHAVI . . . . .

What is the type of 2 wireconnection?

Looking a the wording of core on the left and the word shield on the right, is being the use of a shielded cable between the diode sets and the RS232 connector.

The illustration serves both as a pic of the cable type AND the manner of a very neat extraction method of the inner core wire from the shielding as well asalso then leaving a neat shield pigtail . . . . WITHOUT destroying many of the shield strands.
Also, you want to go right up to the diode pair and leave minimum diode wiring exposed . . . or you would have defeated the purpose of the use of shielded interconnect wiring.


Shielded wire with its outer braided shield and inner core wire . . . .

figure5.jpg



What it cannot "tell" you is that you initially push the braiding down such that it greatly expands apart, and leaves big X cross gaps and you then spread an X crossing even further apart such thatt you can then get a . . . .needle / wire hook . . . down inside to flick a folded loop of the wire out, then you pull that wire end out totally, The pic is showing the mid state of that operation.

73's de Edd

Thank you.
I don't have any problem by shield connection, I wanna connect this sensor to Arduino or Esp8266 and use mod-bus library to read and log this.
then please help me about the type of connection .
 

REZA MALHAVI

Sep 8, 2017
6
Joined
Sep 8, 2017
Messages
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The RX connection has a two diodes connected back to back so will never pass any current.
this connection is for data transmission and it work. please see the attached file.
 

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  • infrared.JPG
    infrared.JPG
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