NCR RealPOS 70, User Manual

Page: 219 / 306

Chapter 10:
2x20 Customer Display Interface
Introduction
The 2x20 Customer Display consists of a Vacuum Florescent Display
(VFD) with two rows of twenty 5x8 dot matrix characters, an RS ‐ 232
serial interface, driver circuitry, DC to DC/AC converter, and a
character generator.
General Specifications
Item Value
Number of characters 2 Rows x 20 Characters
Character Configuration 5x8
Character Height 8.86 mm
Character Width 3.90 mm
Character Pitch 5.15 mm
Line Pitch 9.64 mm
Peak Wavelength of
Illumination
505 mm
Luminance 350 Cd/m2 (102 fL) (Minimum),
700 Cd/m2 (204 fL) (Typical)
Serial Communication Interface
The display receives commands and data from the host using an
RS ‐ 232 serial interface, framed at 9600 baud, 8 data bits, no parity, and
one stop bit.