Product information:

The Model 1009 supports async, point-to-point, RS-232, communicationover two twisted pairs. It is designed to plug into DB-9 interfaces (respectfully), and is compatable with the Model 1000. This short haul is compatible with the Model 1010.

• Support async, point-to-point, RS-232, communication over two twisted pairs
• Designed to plug into DB-9