Zero modem cable with DB9 male / female, 20 cm
Pin 2 to pin 3
Pin 3 to pin 2
Pin 5 to pin 5
Cable screen connected to DB9 male plug
Cable display is not connected to the DB9 female connector
The connectors are with finger screws
Zero-modem cable is used for a cross-over serial connection (RS232) between 2 DTEs (computer, terminal, printer, etc.). The name derives from the use of RS232 cables to connect two teleprinter units to two modems to communicate with each other.
The RS232 standard is asymmetric communication link between two devices, one being one DTE and the other is a DCE. With a null modem connection, the transmission and receive lines are cross-linked. Depending on the purpose, sometimes one or more handshake compounds are also cross-linked. Several wiring layouts exist as a null modem connection is not covered by the RS232 standard.
Zero modem cable with 2 x DB9 female, 28 AWG
Universal null modem cable 2 x DB9 female / 2 x DB25 female.
Sold in several lengths.
Zero modem cable with 2 x DB9 female, 28 AWG
Maximum versatility nullmodemkabel2 x she DB9 / 2 x DB25 female.
Sold in several lengths.
