VK202-25 Matrix Orbital, VK202-25 Datasheet - Page 10

• Manufacturer Part Number: VK202-25
• Description: VFD ALPHA/NUM DISPL 20X2 SER/I2C
• Manufacturer: Matrix Orbital
• Series: VK202-25r

Specifications of VK202-25

• Outline L X W X H: 116.00mm x 37.00mm x 29.48mm
• Viewing Area: 89.75mm L x 11.50mm W
• Display Format: 20 x 2
• Display Type: Character
• Format: 5 x 7 Dots
• Character Size: 4.70mm H x 2.40mm W
• Interface: Serial
• Operating Temperature: -20°C ~ 70°C
• Product: Character Display Modules
• Character Count X Line: 20 x 2
• Module Size (w X H X T): 116 mm x 37 mm x 29.48 mm
• Operating Temperature Range: - 20 C to + 70 C
• Dot Format: 5 x 7
• Viewing Area (w X H): 89.75 mm x 11.5 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Number Of Dots: -
• Lead Free Status / Rohs Status: Details
• Other names: 635-1020

If you don't want to modify cable wiring yourself, Matrix Orbital can supply an adapter cable designed to
use with the display module when it's installed in a PC. The cable is wired as shown in Figure 2-6 below.
2.1.2 RS-232 Communications
A standard DB-9F is provided for RS-232 communications. Power may also be supplied via this connector
if desired. See Figure 2-7 for pin connections.
The RS-232 connector on the PC cable is wired so that a standard “straight through” 9 pin D-sub cable may
be used to connect the module to a standard serial port such as COM ports on PCs. Note that this device
complies with the EIA232 standard in that it uses signal levels from ± 3V to ± 12V. It will not operate
correctly at TTL (0 to +5V) levels with out modification.
VK202-25 rev. 05
Figure 2-7 RS-232 and power connector
Figure 2-5 Wiring for 12 volt modules
Figure 2-6 Twelve volt power cable
+5 V
GND
+12 V
+12 V
GND
10
PC wiring
Display module wiring