Black Box IC1620A-F Async RS232 to RS485 Interface Converter - DB9 to Terminal Block

Convert async RS232 to RS485 at speeds up to 115.2 kbps with distances up to 4000 ft. over CATx cables. The Async RS-232 to RS-485 Interface Bidirectional Converter, DB9 Female to Terminal Block features a DB9 female connector on the RS-232 side, and a terminal block on the RS-485 side. It converts your unbalanced RS-232 signals to balanced half-duplex RS-485 signals. 
Features

• Transmit data up to 115 kbps or at distancesup to 4000 ft.
• Operates in point to point or multipoint applications.
• 2-wire operation half-duplex only.
• Async (data leads) only.
• Up to 32 RS485 devices can be attached to create a large multi-drop network.
• The RS485 driver is automatically enabled during each spacing state on the RS232 side.
• Works with or without transmit "echo."
• The converter's RS-232 side has a DB9 female connector configured as DCE.
• The converter's RS-485 side has a terminal block