Huawei S1700 Series Manual page 100

S1700 Managed Series Ethernet Switches
Product Description
5
7
Indicators
The S1720-28GFR-4P does not have the PoE indicator. The meanings of other
indicators are the same as those on the S1720-28GWR-PWR-4X.
Power Supply Configuration
The S1720-28GFR-4P has a built-in power module and does not support pluggable
power modules.
Heat Dissipation
The S1720-28GFR-4P has no fans and uses natural heat dissipation.
Technical Specifications
Table 5-21
Table 5-21 Technical specifications
Item
Memory (RAM)
Flash
Mean time
between failures
(MTBF)
Mean time to
repair (MTTR)
Availability
Service port
surge protection
Power supply
surge protection
Issue 18 (2020-10-23)
Ground screw
NOTE
No ground cable is delivered with the
switch.
AC power socket
NOTE
It is used with an AC power cable.
lists technical specifications of the S1720-28GFR-4P.
Description
512 MB
512 MB in total, 240 MB available for customers
45 years
2 hours
> 0.99999
Common mode: ±7 kV
±6 kV in differential mode, ±6 kV in common mode
Copyright © Huawei Technologies Co., Ltd.
6 Jack reserved for AC power cable
locking strap
NOTE
The AC power cable locking strap is not
delivered with the switch.
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5 Hardware Structure
66