B&B Electronics 232SPS2 Serial interface cards/adapter

Parallel to Serial Converter Change a serial port to a parallel port or vice versa
The Model 232SPS2 converts data from a parallel port to a serial communication format, or from a serial port to a parallel communication format. Connects directly between computer and printer without making any software modifications. A built-in 96-byte buffer prevents data loss.

The serial port has a female DB25 connector and supports X-On/X-Off control as well as hardware handshaking. It supports standard baud rates from 1200 to 115.2 kbps, and Acknowledge, Busy, and Strobe on the parallel port. 8-position dipswitch configures the 232SPS2 to match system.

The unit can be port-powered using DTR and RTS on the serial port or powered externally using 7 to 18 VDC. A power supply is available.