Matrix Orbital VK204-25 Legacy - Manual (Page 8)

Figure 6: 4X4 Keypad
1.3 Features
• 20 column by 4 line text vacuum fluorescent display
• USB communication protocol
• Six, 5V -20mA, general purpose outputs for a variety of applications
• Lightning fast communication speeds, up to 115.2 kbps
• Default 19.2 kbps serial communication speed
• Extended temperature available for extreme environments of -40C to 85C
• Built in font with provision for up to 8 user defined characters
• Optional 1-wire bus that is capable of communicating with up to 32 devices over a single bus
• Fully buffered so that no delays in transmission are ever necessary
• Ability to add a customized splash / startup screen
• Software controlled brightness with configurable time-out setting up to 90 minutes and software con-
trolled speed
• Use of up to a 25 key keypad with a 10 key buffer
• Horizontal or vertical bar graphs
• Extended temperature option
• Fits Matrix Orbital’s mountings without any modifications
Matrix Orbital VK204-25-USB 4