3com 4070 Quick Setup Guide
3Com Switch 40x0 Family — Rear View Detail
19
* The PSU LEDs are visible on the front of the Switch and are marked ‘1’ for PSU 1 (bottom) and
‘2’ for PSU 2 (top).
‘2’ for PSU 2 (top).
3Com Switch 40x0
Family
Family
—
Rear View
Detail
Figure 4 3Com Switch 40x0 Family — rear view
Expansion Module
Slot
You can use this slot to install an Expansion Module. Contact your
supplier for further information.
supplier for further information.
Temperature
Red flashing
The Switch and/or the PSUs are above critical
temperature and may shut down.
temperature and may shut down.
Off
The Switch and the PSUs are below critical
temperature.
temperature.
Expansion Module Status LEDs
Green
The module is installed and supported and a link is
present.
present.
Yellow
The module is installed and supported but there is no
link present or the link status cannot be determined.
link present or the link status cannot be determined.
Yellow flashing
The Module is installed but not supported or has failed
self-test. Note that the unit will continue to operate
normally.
self-test. Note that the unit will continue to operate
normally.
Off
The Module is not installed.
Expansion Module Packet LEDs
Yellow
Packets are being transmitted/received on the port.
Off
No packets are being transmitted/received on the port.
LED
Color
Indicates
DUA1770-9AAA04.book Page 19 Monday, April 14, 2003 11:33 AM