Eaton Tripp Lite Series 6ft Null Modem Serial DB9 RS232 Cable Adapter Gold M/F 6' - null modem cable - DB-9 to DB-9 - 6

It is the standard null modem pin-out when connecting, i.e., two PCs together thru the 9pin serial port.

Features:
-DB9 female to DB9 male
-Superior molded cables with foil-shielding for maximum EMI/RFI protection
-Gold-plated connectors provide superior conductivity
-Tripp Lite warrants this product to be free from defects in materials and workmanship for life
-Superior molded cables with foil-shielding for maximum EMI/RFI protection
-Gold-plated connectors provide superior conductivity
-Null modem cables connect two serial devices that require a null modem configuration

DB9-1 DB-2
Receive Data 2 3 Transmit Data
Transmit Data 3 2 Receive Data
Data Terminal Ready 4 6+1 Data Set Ready + Carrier Detect
System Ground 5 5 System Ground
Data Set Ready + Carrier Detect 6+1 4 Data Terminal Ready
Request to Send 7 8 Clear to Send
Clear to Send 8 7 Request to Send