The 15-pin Sub-D female connector MONITOR at the rear panel of the CMU is intended for connecting an external VGA monitor.
Pin assignment of the MONITOR connector
| Pin No. | Signal |
| 1 | RED (output) |
| 2 | GREEN (output) |
| 3 | BLUE (output) |
| 4 | MID2 (NC) |
| 5 | NC |
| 6 | R-GND |
| 7 | G-GND |
| 8 | B-GND |
| 9 | NC |
| 10 | GND |
| 11 | MID0 (NC) |
| 12 | MID1 (NC) |
| 13 | HSYNC (output) |
| 14 | VSYNC (output) |
| 15 | NC |