Type 3855
INTERFACE TRAINING BOARD Type 3855
The INTERFACE TRAINING BOARD Type 3855 teaches practical knowledge about serial and parallel interfaces. RS-232, Centronics, test points, fault simulation and Windows software make the system suitable for classroom and laboratory use.
- Training unit for serial and parallel interfaces
- Direct connection to any PC with RS 232 and Centronics
- Important signals of both interfaces brought out to measuring points
- Usable on a table or in a demonstration rack
- Windows software COMwin / LPTwin
- Includes detailed experiment instructions
Interfaces and Test Points
The device is designed to teach practical knowledge about serial and parallel interfaces. Via RS-232 and Centronics, the training system can be connected directly to a standard PC.
The signals of both interfaces are available at integrated measuring points. For fault simulation, signal lines can be disconnected so that typical fault patterns can be studied directly.
Manual and Exercises
The experiment manual 'Experiments in Interface Technology with COMwin / LPTwin' covers the structure of interfaces, serial and parallel data transmission, the transmission format and practical commissioning.
Topics include signal names, connector assignments, levels, timing diagrams, baud rate, parity checking and troubleshooting for open or swapped lines.
- Fault simulation via separable signal lines
- Interface signals safely accessible at measuring points
- Mains supply
- 230 V AC / 115 V (110 V) AC, 50 ... 60 Hz, approx. 2.5 VA
- TTL outputs
- 2 LOW outputs, 2 HIGH outputs
- RS 232 interface
- serial interface with level shifter to TTL level
- Centronics interface
- parallel interface for PC connection
- Microcontroller
- 87C51
- Display unit
- LCD module, 2 lines, 16 characters each
- Input keypad
- foil keypad with 8 keys for interface, display, parity and baud rate
- Test sockets
- 2 mm, short-circuit proof
- Adapter field
- transition from 4 mm to 2 mm connections
- Dimensions
- 266 x 297 x 100 mm
- Weight
- 1.8 kg
- Included accessories
- serial cable 2 m, parallel cable 1.8 m
- Recommended accessories
- storage oscilloscope or logic analyser
- Interface structure using RS 232 and Centronics
- Serial and parallel data transmission
- Signal names and connector assignments
- Levels and timing diagrams
- Determine baud rate
- Parity-bit data protection
- Troubleshooting open or swapped lines
