Null Modem Cables


NMC9F9F-6 (Female to Female)
(click image to enlarge)
  • Compact null modem serial connection
  • Provides "cross-over" connection for serial devices
  • DB9 Female connector on each end

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See Also: DB9 Connectors,   DB9 Extension Cables,   DB9 Breakout Boards,   DB9 Breadboard Adapters


General Description

These Null Modem cables can be used to connect two 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. Applications include PC serial communications and other devices.

The exact connections are as follows:

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)

Pricing and Ordering

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

All of the above items are normally stocked. Please call us if you need to verify availability for a specific quantity, or for pricing at higher quantities. Please visit our ordering page for our ordering policies and a list of ordering methods.