2.2 Front metal panel external I/O connectors
2.2.1 Power ON/OFF Button
The ARK-7480 comes with a Power On/Off button, that Support dual function of Soft Power -On/Off (Instant off or Delay 4 Second), and Sus- pend.
2.2.2 LED Indicators
There are two LEDs on the ARK-7480 front panel for indicating system status: PWR LED is for power status and flashes in Green color; HDD LED is for hard disk and compact flash disk status, which flashes in Red color.
2.2.3 Power Input Connector
The ARK-7480 comes with a 3-pin Plug-In block & DIP Type connector that carries AC 100~240V external power input.
2.2.4 COM1, COM3~COM6 Connector
The ARK-7480 provides 5 of D-sub 9-pin connectors, which offers one standard RS-232 serial communication interface port of COM1,COM3, COM4, COM5 and COM6.
1 2 3 4 5
6 7 8 9
Figure 2.3: COM1, COM3~COM6 connector
Table 2.1: COM1, 3~COM6 standard serial port pin assignments
Pin Signal Name
1DCD
2RxD
3TxD
4DTR
5GND
6DSR
7RTS
8CTS
9 RI
