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Null Modem Cables




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Null Modem Cable

 

See Also: DB9 Connectors, DB9 Breakout Board, DB9 Breadboard Adapters


General Description

These Null Modem cables can be used to connect two PC serial ports together, allowing communication between them. The Transmit signal of one side is connected to the Receive signal of the other. Flow control lines and other signals are also connected. The exact connections are:
SignalDB9 PinDB9 PinSignal
Receive23Transmit
Transmit32Receive
DTR (Data Terminal Ready)46, 1DSR (Data Set Ready), Carrier Detect
Ground55Ground
DSR (Data Set Ready), Carrier Detect6, 14DTR (Data Terminal Ready)
RTS (Request to Send)78CTS (Clear to Send)
CTS (Clear to Send)87RTS (Request to Send)

Cables are available with the following end connectors:
DB9 Female
DB9 Female

Pricing and Ordering

Product # Description Quantity Pricing RoHS Buy Now
1+ 10+
NMC9F9F-6 Null Modem Cable, DB9 Female to DB9 Female, 6 Ft $3.99 $3.75 Yes

Please call for pricing at higher quantities. Please visit our ordering page for our ordering policies and a list of ordering methods.
What is RoHS? If you need a RoHS version of a non-RoHS product, please contact us.



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