Huawei S1700 Series Manual page 103

S1700 Managed Series Ethernet Switches
Product Description
Figure 5-18 Appearance of an S1720-28GWR-4X
1
HUAWEI
PWR
SYS
STAT
SPED
MODE
1
3
Issue 18 (2020-10-23)
2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
S1720-28GWR-4X
5
Mode switching button
NOTE
Press this button to change the mode
of service port indicators:
When you press this button once, the
service port indicators change to the
speed mode and show the speed of
each service port.
When you press this button again, the
service port indicators restore to the
default mode and show the connection
status of each service port.
If you do not press this button within
45 seconds, the service port indicators
restore to the default mode. In this
case, the SPED indicator is off.
Four 10GE SFP+ Ethernet ports
Applicable modules:
● GE optical module
● GE-CWDM optical module
● GE-DWDM optical module
● GE copper transceiver module
● 10GE SFP+ optical module
(maximum transmission distance
≤ 10 km)
● 1 m, 3 m, 5 m, and 10 m SFP+
high-speed copper cables
● 3 m and 10 m AOC cables
● GPON optical module
(applicable in V200R012C00 and
later versions)
NOTE
If a port uses a GPON optical module,
other 10GE SFP+ optical ports cannot
be used.
Copyright © Huawei Technologies Co., Ltd.
16 17 18 19 20 21 22 23 24
1
2
4
5 Hardware Structure
3 4
2 3 4
RST
1 0 G / 1 G
Twenty-four 10/100/1000BASE-T
ports
Reset button
NOTICE
To restore the factory settings of a
switch, hold down the Reset button for
at least 6 seconds. This operation will
not reset the switch.
To reset a switch, press the Reset
button.
Resetting the switch will cause service
interruption. Exercise caution when you
press the Reset button.
~100-240V;50/60Hz;0.8A
6 7
69