Hardware Connectivity

Model 485BAT3 features power versatility, making it perfect for field testing solutions. It converts unbalanced RS-232 signals to balanced RS-422 or RS-485 signals. RS-485 is an enhanced version of the RS-422 standard, allowing multiple drivers and receivers on a two-wire system.

Model BB-485CON, RS-232 to RS-485 converter, converts unbalanced, full-duplex RS-232 signals to balanced, full-duplex or half-duplex RS-485 signals. RS-485 is an enhanced version of the RS-422 balanced line standard. It allows multiple drivers and receivers on a two-wire system. The RS-232 port uses a male DB-25P type of connector with pins 2 (TD input) and 3 (RD output) supported. Protective Ground (pin 1) and Signal Ground (pin 7) are also connected. The RS-485 port uses a female DB-25S type of connector with Send Data outputs on pins 2 and 14, and Receive Data inputs on pins 5 and 17. Protective Ground (pin 1) and Signal Ground (pin 7) are connected through to the RS-232 connector.

• IEEE-61850-3
• IEEE 1613
• -40 to 85°C Operating Temperature
• Rugged IP30 Metal Panel Mount Case
• 50G Shock, 4G Vibration
• 2kV Triple Isolation
• 10 to 48 VDC Input Power

Wide temperature and power ranges make B&B Electronics isolated converters ideal for your harsh duty applications. Automatic Send Data Control, Modbus compatible. The RS-232 side has both a terminal block connector and a DB9 female connector; the RS-485 side has a terminal block. Requires external power supply not included.

These port-powered RS-232 to 422/485 converters change TD and RD RS-232 lines to 422/485 signals. All of our serial port converters feature Automatic Send Data Control. SDC automatically enables the RS-485 driver when data is present on the RS-232 side. Control of the driver is automatic at rates up to 115.2 kbps.