3Com 3Com SuperStack 3 Switch 3800 Family, User Manual, Page: 27 / 182

Switch 3800 Rear View 1-9
Switch 3800 Rear
View
Figure 1-4 shows the Switch 3800 rear view.
Figure 1-4 Switch 3800 rear view
The rear panel has the following features:
Power Socket
The Switch 3800 automatically adjusts to the supply voltage. The
power supply operates down to 90 V. The fuse is suitable for both
110 V AC and 220-240 V AC operation.
Serial Number
The serial number uniquely identifies this unit. You may need this serial
number for fault-reporting purposes.
Unit Status LEDs
Power Green
Yellow
The Switch 3800 is powered up.
The Switch 3800 is indicating a power,
overheat, or fan failure.
MGMT Green
Green flashing
Yellow
The Switch 3800 is operating normally.
Software download is in progress.
Power On Self Test (POST) is in progress.
The Switch 3800 has failed its POST, or is
indicating an overheat condition.
Table 1-2 Switch 3800 LEDs (continued)
LED Color Indicates
3C16990
C
MADE IN USA
MAIN ASSEMBLY
SERIAL NUMBER
MAC ADDRESS
U
L U
L
!
Power socket and fuse Console port
SW3800.BK Page 9 Tuesday, May 5, 1998 5:20 PM