Figure 3-21: Rs-232 Serial Port Connector Location; Table 3-21: Com2 Pinouts; Table 3-22: Com3 Pinouts - IEI Technology KINO-DQM871-i1 User Manual

Figure 3-21: RS-232 Serial Port Connector Location

Pin Description
1 -NDCD2
3 NSIN2
5 NSOUT2
7 -NDTR2
9 GND

Table 3-21: COM2 Pinouts

Pin Description
1 -NDCD3
3 NSIN3
5 NSOUT3
7 -NDTR3
9 GND

Table 3-22: COM3 Pinouts

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KINO-DQM871-i1 Mini-ITX SBC
Pin Description
2 -NDSR2
4 -NRTS2
6 -NCTS2
8 -XRI2
10 GND
Pin Description
2 -NDSR3
4 -NRTS3
6 -NCTS3
8 -XRI3
10 GND