JHCTech KMDA-3601, User Manual

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User’s Manual
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Figure 2.17 COM3/4 Connector
Table 2.10: COM3/4 Serial Port Pin Assignments
Pin Signal Pin Signal
1 DCD 2 RxD
3 TxD 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI/5V/12V
2.4.10 Remote Switch signal Connector
For the remote switch signal interface of the switch machine, the terminal of the motherboard coastline is
a 2-pin terminal. Table 2.11 for pin assignments.
Figure 2.18 Remote SW Connector
Table 2.11: Remote Switch Pin Assignments
Pin Signal
1 PWR_BTN
2 GND
2.4.11 AT/ATX SW
The KMDA-3601 provides a AT/ATX SW, which users can set Power-on mode by it. When you dial it at
AT, it means power on by AC Power; When you dial it at ATX, it means power on by Power button.
2.4.12 LED
There are 1*Power LED, 1*HDD LED, 3*CPU temperature class LEDS on the front. Users can monitor
the working state of the CPU according to the display of LEDs.