11 Chapter 2
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.
Figure 2.3: COM1, COM3~COM6 connector
Table 2.1: COM1, 3~COM6 standard serial port pin assignments
Pin Signal Name
1 DCD
2 RxD
3 TxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
15
9
6
324
78