VK202-25-USB Matrix Orbital, VK202-25-USB Datasheet - Page 12

• Manufacturer Part Number: VK202-25-USB
• Description: Vacuum Fluorescent Displays (VFD) Vacuum Florescent Blue/Green Text
• Manufacturer: Matrix Orbital

Specifications of VK202-25-USB

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

2.2 Keypad Interface Connector
style keypad to be directly connected to the display module. Key presses are generated when a short is
detected between a row and a column. When a key press is generated a character, which is associated with
the particular key press, is automatically sent on the Tx communication line. The character that is associated
with each key press may be altered using the “Assign Key Codes” command, for more detailed information
see the Keypad Section, on page 33.
2.3 Manual Override
be particularly helpful if the display module has been set to an unknown baud rate and you are no longer
able to communicate with it. If you wish to return the module to its default settings you must:
Matrix Orbital
1. Power off the display module.
2. Place a Jumper on the Manual Override pins.
3. Power up the display module.
4. The display module is now set to its default values listed below in
5. Edit and save settings.
The VK202-25-USB provides a Keypad Interface Connector which allows for up to a five by five matrix
The Manual Override is provided to allow the VK202-25-USB to be reset to factory defaults. This can
Figure 10: Keypad Interface Connector
VK202-25-USB
table 1
.
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