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

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:

Signal	DB9 Pin	DB9 Pin	Signal
Receive	2	3	Transmit
Transmit	3	2	Receive
DTR (Data Terminal Ready)	4	6, 1	DSR (Data Set Ready), Carrier Detect
Ground	5	5	Ground
DSR (Data Set Ready), Carrier Detect	6, 1	4	DTR (Data Terminal Ready)
RTS (Request to Send)	7	8	CTS (Clear to Send)
CTS (Clear to Send)	8	7	RTS (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

RoHS Yes

Null Modem Cable, DB9 Female to DB9 Female, 6 Ft

Quantity	Price
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.