The Diagnostic Display Terminal is a robust terminal device constructed for harsh environments. A special wide temperature electronic, a wide temperature LCD (4×40 characters, LED backlight) and a switch panel with EMI protection are used to meet the EN50155 and the IEC 801-x specifications. The device is resistant to shock and vibration and well-protected against dust and water (front panel: IP65). Encased in a robust aluminum box and without the need of a cooling fan, the Diagnostic Display Terminal can operate from -20°C to +70°C at relative humidity of 95%.
The communication between Host and Diagnostic Display Terminal is realized by a serial link: either RS422 (standard), or RS485. The I/O-signals for RS422 and RS485 are electrically isolated.
The Diagnostic Display Terminal itself generates scan codes which are sent to the Host every time a key is pressed or released (MAKE and BRAKE-codes).
Environment: | |
Ambient temperature (operating) | -20..+70°C |
Ambient temperature (storage) | -30..+80°C |
Humidity (mean value) | < 95%RH |
Humidity (max. 90 days a year) | 95..100%RH; < 40°C |
Cooling | no cooling fan |
Display: | |
Technology | LCD with LED backlight |
Backlight, contrast, brightness | programmable |
Display organization | 4 lines × 40 characters |
Character set | ASCII, 8 bit |
Effective viewing area (W×H) | 154.4 × 27.6 mm |
Display controlling | VT-100 subset private code |
Switch panel: | |
Number of keys | max. 32; customized |
Layout | 4 lines × 8 columns |
Labeling of the keys | customized |
Power supply: | |
Supply voltage | 45 to 158 VDC |
Power dissipation (typ.) | 6.0 W |
Mechanical specifications: | |
Outline dimensions (W × D × H) | 232 × 149 × 45 mm |
Material of the case | Aluminium |
Front panel | IP65 |
Communication: | |
Serial link | RS422, RS485 or RS232 |
Communication parameters | programmable |
Standards: | |
EN 50155, IEC 801-2, -3, -4, -5, -6 |