How many types of rs-232 lead connections

W

wiseguy4u

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#1
how many types of rs-232 lead connections. I mean they are change for every receiver or there are only two that is simple and cross. I mean connection diagrams.
 
BarMoo

BarMoo

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#2
I believe you will find an inline and a null-modem variant for RS232 - perhaps even more depending on use.

Do a google search to learn more:)

Mark.
 
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Qariya

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#3
this is wiring connection

db9null.PNG
 
N

nissan

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#4
Please help
How do you differntiate between RS232 crossAND RS232 straight?
 
john_graydon

john_graydon

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#5
nissan said:
Please help
How do you differntiate between RS232 crossAND RS232 straight?
With the cross lead pins 2 & 3 are reversed at the other end. But dont take my word for it. i have an auful head.
 
P

PCD

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#6
nissan said:
Please help
How do you differntiate between RS232 crossAND RS232 straight?
The straight is known as simply 'serial lead' and it has pin1 connected to pin 1 at the other ene, pin2 to pin2 etc. The crossed one (diagram above) is known as the 'null-modem' cable, sometimes referred to as null-modem serial which causes confusion. Other feature is the end connections of the null-modem are same gender (female-female usually) and the straight opposite gender. Regards, pcd.
 
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nissan

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#7
Thank you PCD very much, Can you tell me where can i get SERIAL LEAD (STRAIGHT) cause even pc world dont have it.
 
P

PCD

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#8
nissan said:
Thank you PCD very much, Can you tell me where can i get SERIAL LEAD (STRAIGHT) cause even pc world dont have it.

Try sat dealer websites who sell phoenix programmers. I don't think I am allowed to advertise. Regards.
 
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john22

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#9
Hi, If you are still looking I bought one today in Maplins here in Dublin 8 Euros About 5 Pounds Sterling Hope this helps.
 
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