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| Pin No. | Signal | Illustration |
| 1——8 | P0——P7 | Laser power signal. TTL compatible |
| 9 | PLATCH | Power signal latch. TTL compatible. |
| 10, 14, | GND | The reference ground of the control board. |
| 16, 21,11,12 | LASERST0~3 | Alarm signal of Laser module |
| 17 | VCC | 5V power output. |
| 18 | MO | Main oscillator signal. TTL compatible. |
| 19 | AP | Power amplifier signal. TTL compatible. |
| 20 | PRR | Pulse repetitive rate signal. TTL compatible. |
| 22 | RedPt | Red light pointer signal. TTL compatible. |
| 23 | EMSTOP | Emergency stop signal. TTL compatible. |
| 13,24,25 | Unconnected. |