General Description
The DTL-IFB-485 uses a microcontroller with a 4-wire RS-485 interface to facilitate programming the DTL2A/2A-LC/3A/4A serial-input (isolated) loads using simple ASCII command strings through the serial port of a PC. THE DTL-IFB-485 plugs in to a DTL2/3/4 load and provides an address for the load (range 0 to 255) set by two rotary hexadecimal switches on the DTL-IFB-485. The standard RS-485 specification provides for up to 32 devices connected up to 4,000 feet of cable length. The DTL-IFB-485 operates at either 9600 or 1200 baud. The DTL-IFB-485 uses special high-input impedance receivers, allowing 256 devices to be driven by a single RS-485 port.

Features
• Simplifies interfacing to DATELs DTL2A, DTL2A-LC, DTL3A & DTL4A, 100W serial-input electronic loads
• Connects to PCs serial port using RS485 adapter card
• Simplifies burn-in rack and load bank connections• Microcontroller with a four-wire RS-485 interface
• Update loads individually or simultaneously
• Red/Green LEDs for fault/unit enabled
• WinBurn™ ActiveX Controls