Switch Model
Indicator Description
S1720-28GFR-4
TP
S1720-20GFR-4TP
Figure 3-3
Indicators on the S1720-20GFR-4TP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CONSOLE
18
17
S1720-20GFR-4TP
SPED
PWR
SYS
MODE
RST
20
1G
19
1G
1G
10/100/1000BASE-T
5
5
1 2 3
4
Table 3-2
Description of indicators on the S1720
Numbe
r
Indicator/
Button
Color
Description
1
PWR: power
supply indicator
Off
The device is powered off.
Green
Steady on: The system power supply is
normal.
2
SYS: system
status indicator
Off
The system is not running.
Green
l
Fast blinking: The system is starting.
l
Slow blinking: The system is running
properly.
Red
Steady on: After registering, the system
does not operate properly, or a temperature
alarm has been generated.
3
SPED: speed
indicator
Off
Off: The speed mode is not selected.
Green
Steady on: The speed mode is selected. If
the speed mode is selected, the service port
indicator shows the port speed state. After
45 seconds, the service port indicators
automatically restore to the default mode.
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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