Hardware pinouts information and cables schemes

Serial port Loopback (25 CheckIt) pinout

loopback for testing

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25 pin D-SUB female connector layout
25 pin D-SUB female connector
at the computer

Used to verify that a port is working. This one works with CheckIt.

Name Pin Pin Pin Pin
Jumpering 123  
Jumpering 245  
Jumpering 3682022

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Pinouts.ru > Loopback pinouts and schemes listing > Pinout of Serial port Loopback (25 CheckIt) and layout of 25 pin D-SUB female connector
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Source(s) of this and additional information: Hardware Book, "Coolsys"
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Last updated 2008-06-28 21:56:54. Edit this page. Is this document correct or incorrect? What is your opinion?
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