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Table 14. Front panel LED indicators
LED indicator
Power button
Watchdog (WD)
Hard disk drive (HDD)
Standby
U1/U2/U3
COM port connectors
The EGW-3200 provides two COM ports through D-sub 9-pin connectors. The COM1 and COM2 ports support
RS-232/422/485 modes by BIOS setting.
Figure 19. COM port pin locations
Table 15. D-Sub 9-pin signal function of COM ports
Pin
Signal
RS-232
1
DCD#
2
RXD
3
TXD
4
DTR#
5
GND
6
DSR#
7
RTS#
8
CTS#
9
RI#
USIM card slots
Two physical USIM card slots are located on the right-hand side panel of the chassis. Remove the cover to insert the USIM
cards.
Color
Blue
Yellow
Red
Blue
Green
RS-422
TXD422–
TXD422+
RXD422+
RXD422–
N/S
N/S
N/S
N/S
N/S
Description
When illuminated continuously, indicates the system in S0. When blinking,
indicates the system in S3.
Indicates watchdog timer status. When watchdog timer starts, the LED
flashes. When the timer is expired, the system will reboot. The LED is
controlled by super I/O.
Indicates the storage operating state. When the SATA hard disc drive is
active, the LED indicator flashes.
When illuminated continuously, indicates standby power ready.
Behavior can be adjusted using onboard GPIO.
RS-485
485DATA–
485DATA+
N/S
N/S
N/S
N/S
N/S
N/S
N/S
System Layout
19
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