For example my 1986 Mongoose Expert has a serial number M6EG0652.
Our line of null modem serial cables allows two DTE or DCE devices to communicate with no conflict in data transmission. The transmit and receive signals are crossed to ensure proper data transmission. Each null modem cable is designed with a rugged, overmolded construction that provides added strain relief and a solid connection each time. Plus the cable is foil shielded for EMI/RFI protection from surrounding office equipment and flourescent lights.
![Pinagem Cabo Serial Rs232 Pinagem Cabo Serial Rs232](https://wiki.mikrotik.com/images/3/3a/Rj45-pinout.gif.png)
Thumbscrew connectors provide a fast, easy connection every time.
![Serial Serial](https://http2.mlstatic.com/cabo-serial-rs232-macho-p2-para-receptor-recovery-D_NQ_NP_932795-MLB27729247358_072018-F.jpg)
Se ele usou o notebook provavelmente ele utilizou a porta USB (cabo. Pinout of Epson Serial/RS-232 Cable DB9 to DB25 and layout of 9 pin D-SUB male connector and 25 pin D-SUB female connectorfor Epson Thermal/Impact Receipt Printer. Serial (RS232) modem cable (DB9-DB15). Pinout and signals for building a serial (RS232) modem cable.