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HwB: Nullmodem (25-25) Cable

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Nullmodem (25-25) Cable

Use this cable between two DTE devices (for instance two computers).

25 PIN D-SUB FEMALE (To Computer 1).
25 PIN D-SUB FEMALE (To Computer 2).

25 PIN D-SUB FEMALE to Computer 1.
25 PIN D-SUB FEMALE to Computer 2.

D-Sub 1 D-Sub 2
Receive Data 3 2 Transmit Data
Transmit Data 2 3 Receive Data
Data Terminal Ready 20 6+8 Data Set Ready + Carrier Detect
System Ground 7 7 System Ground
Data Set Ready + Carrier Detect 6+8 20 Data Terminal Ready
Request to Send 4 5 Clear to Send
Clear to Send 5 4 Request to Send
Note: DSR & CD are jumpered to fool the programs to think that they are online.
Contributor: Joakim Цgren, Drew Sullivan, ">Niklas Edmundsson, ">Don Rifkin, ">Richard Marker
Source: ?
Please send any comments to Joakim Цgren.

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