AT20R Specifications
Recommended System Requirements:
- Pentium™ processor-based personal computer, P4 2.8 GHz or Higher (P4 1GHz minimum). Motherboard using genuine Intel™ PCI chipset highly recommended. VIA chipsets have proven to be unreliable.
- NTFS file system (installed by default on XP/2000/Vista).
- 64-Bit Windows™ systems are not supported.
- 1 GB RAM or more (512MB minimum)
- VGA card supporting at least 24-bit colour and 128MB onboard memory. Video cards that share main memory are not recommended. For stereo viewing using shutter glasses, a compatible NVidia video card is required.
- Video card with dual monitor support required for running separate patient display.
- 1GB of available hard-disk space.
- DVD-ROM drive (CD-ROM minimum)
- At least 1 free USB 2.0 port.
Supported Windows Operating Systems:
| |
AT20R* |
| Windows XP(1) |
Yes |
| Windows Vista 32bit(2) |
Yes |
| Windows Vista 64bit(2) |
Yes |
| Windows 7 32bit(3) |
Yes |
| Windows 7 64bit(3) |
Yes |
*Latest Medmont AT20R software. Please refer to the downloads section under support for the latest version.
(1)Windows XP Professional 32bit only (SP3 or higher).
(2)Windows Vista Ultimate, Business and Enterprise editions only (SP1 or higher).
(3)Windows 7 Professional, Ultimate, and Enterprise editions only.
- Novell networks and network storage devices are not tested or recommended.
- All Microsoft Operating Systems should have the latest service pack installed.
AT20R Specifications:
Visual Acuity Selection
- US 20/12 - 20/400
- UK 6/4 - 6/120
- EU 1.5/0.05
- Snellen Letters
- Sloan Letters
- Illiterate "E"
- Landolt "C"
- AHOTX
- ETDRS
- Numbers
- "LEA" Children's charts
Cross Cylinder Targets
- Multiple Line Decreasing
- Multiple Line Equal
- Single Letter
- Single Letter with interaction bars
- Single Column Decreasing
- Single Column Equal
- Single Line
- "Staircasing" measurement of visual acuity
Astigmatism Measurement
- Fan: 180°; 15° steps
- "V": 2.5° or 5° steps
- "L": located at "V" angle
Wednesday, August 11, 2010, Administrator