Matrix Keypad
The Matrix Keypad is a 12 key, 3x4 arranged with 3 keys across and 4 down with a Matrix interface.
Key Features:
- Audible key clicks
- 5V Key Backlighting
- Optional NVIS Type 1 class A Compliant
- Key nomenclature user definable
- Matrix interface
Mechanical Features:
- Board to board connection to CCA interface
- Four mounting holes matching 2.35" x 2.16"
- Physical dimensions 2.734" x 2.544"
- Captive 4-40 x .5" mounting hardware
- Matrix interface
Functional Features:
- The keypad provides 7 lines of communication to the CCA using a 4 for Row, and 3 for Column matrix configuration.
- The keypad has a 5VDC power input for back-lighting of the key labels.
Keypad Interface:
| Pin | Signal | Description |
|---|---|---|
| 1 | Row 1 | Row 1 input |
| 2 | Column 1 | Column 1 output |
| 3 | Row 2 | Row 2 input |
| 4 | Column 2 | Column 2 output |
| 5 | Row 3 | Row 3 input |
| 6 | Column 3 | Column 3 output |
| 7 | Row 4 | Row 4 input |
| 8 | N/C | |
| 9 | N/C | |
| 10 | N/C | |
| 11 | N/C | |
| 12 | N/C | |
| 13 | DIM HI | Panel Lighting |
| 14 | N/C | |
| 15 | DIM LO | Panel Lighting |
| 16 | N/C |