5 Ground screw 6 Jack reserved for AC power cable
locking strap
NOTE
The AC power cable locking strap is not
delivered with the switch.
7 AC power socket
NOTE
It is used with an AC power cable.
- -
Indicators
The indicator description for S1720-28GFR-PWR-4P is the same as that for
S1720-28GWR-PWR-4X. For details, see the indicator description for
S1720-28GWR-PWR-4X.
Power Supply
Conguration
The S1720-28GFR-PWR-4P has a built-in power module and does not support
pluggable power modules. The built-in power module can provide 370 W PoE
power, which ensures full PoE power on 24 ports in compliance with 802.3af or on
12 ports in compliance with 802.3at.
Heat Dissipation
The S1720-28GFR-PWR-4P has two built-in fans for forced air cooling. The
airow
direction is left-to-right.
Technical
Specications
Table 5-24 lists technical specications of the S1720-28GFR-PWR-4P.
Table 5-24 Technical
specications
Item Description
Memory (RAM) 512 MB
Flash 512 MB in total, 240 MB available for customers
Mean time
between failures
(MTBF)
41 years
Mean time to
repair (MTTR)
2 hours
Availability > 0.99999
Service port
surge protection
Common mode: ±7 kV
S1700 Managed Series Ethernet Switches
Product Description
5 Hardware Structure
Issue 18 (2020-10-23) Copyright © Huawei Technologies Co., Ltd. 78
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