3
Two combo ports (10/100/1000BASE-T
+ 100/1000BASE-X)
Modules applicable to combo optical
ports:
l
FE optical module
l
GE optical module
l
GE-CWDM optical module
l
GE-DWDM optical module
4
One console port
NOTE
It is used with a console cable. The console
cable is not delivered with the switch and needs
to be separately purchased if needed.
5
RST: Reset button
NOTE
This button is used to reset the switch.
l
To restore the factory settings, hold the
button for 5 seconds.
l
To reset the system, press the button.
Resetting the device interrupts services.
Confirm your action before you press the RST
button.
6
Mode switching button
NOTE
Press this button to change the mode of service
port indicators:
l
When you press this button once, the
service port indicators change to the speed
mode and show the speed of each service
port.
l
When you press this button a second time,
the service port indicators restore to the
default mode, the service port indicator
shows the port link or activity state.
If you do not press the MODE button within
45 seconds, the service port indicators restore
to the default mode. In this case, the SPED
indicator is off.
7
Ground screw
NOTE
It is used with a ground cable.
8
Jack reserved for AC terminal locking
latch
NOTE
The AC terminal locking latch is not delivered
with the switch.
9
AC power socket
NOTE
It is used with an AC power cable.
-
-
3.2 Indicator Description
is a quick reference table for indicators of S1720 switches.
Table 3-1
S1720 indicator quick reference table
Switch Model
Indicator Description
S1720-20GFR-4
TP
The symbols and meanings of indicators on the S1720-28GFR-4TP are
the same as those on the S1720-20GFR-4TP.
is used
as an example here.
S1720 Series Ethernet Switches
Product Description
3 Hardware Architecture
Issue 01 (2014-07-20)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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