B+B RS-232 to RS-485 Converter 485TBLED

The 485TBLED converts unbalanced, full-duplex RS-232 signals to balanced, full or half-duplex RS-422 or RS-485 signals. RS-485 is an enhanced version of the RS-422 Standard. It allows multiple drivers and receivers on a two-wire or four-wire system.The RS-232 port, configured as a DCE port, has a female DB25 connector with pins 2 (TD input), 3 (RD output), and 7 (Signal Ground) supported. Pins 4 (RTS) and 5 (CTS) are tied together, and pins 6 (DSR), 8 (CD), and 20 (DTR) are also tied together. Pins 1 (Frame Ground) and 7 (Signal Ground) are connected straight through to the RS-485 terminal blocks. The RS-485 terminal blocks support Transmit Data (A-) and (B+), Receive Data (A-) and (B+), Frame Ground, Signal Ground, and +12 VDC input. See Schematic.

Product Type	Data Transfer Adapter
Brand Name	B&B
Manufacturer	B&B Electronics Mfg. Co
Product Model	485TBLED
Product Name	RS-232 to RS-485 Converter
Manufacturer Part Number	485TBLED
Manufacturer Website Address	http://www.bb-elec.com
Connector on First End	1 x 25-pin DB-25 Female RS-232 Serial
Connector on Second End	1 x Terminal Block - RS-485 Serial
Adapter Type	Serial
Limited Warranty	Lifetime