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modified on 26 September 2011 at 16:37 ••• 4,589 views

DB9 Serial Cable Pinouts

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CAB001: DTE DB9M to 10 pin IDC Straight Through
Function Image:db9.gif Image:idc10.gif
Carrier Detect 1 1
Receive Data 2 3
Transmit Data 3 5
Data Terminal Ready 4 7
System Ground 5 9
Data Set Ready 6 2
Request to Send 7 4
Clear to Send 8 6
Ring Indicator 9 8


CAB003: DCE DB9F to 10 pin IDC Tx & Rx Swapped
Function Image:db9.gif Image:idc10.gif
Carrier Detect 1 1
Receive Data 2 5
Transmit Data 3 3
Data Terminal Ready 4 7
System Ground 5 9
Data Set Ready 6 2
Request to Send 7 4
Clear to Send 8 6
Ring Indicator 9 8