Huawei S1700 Series Manual page 77

S1700 Managed Series Ethernet Switches
Product Description
7
9
Indicators
The indicator description for S1720-28GFR-4TP is the same as that for
S1720-20GFR-4TP. For details, see the indicator description for S1720-20GFR-4TP.
Power Supply Configuration
The S1720-28GFR-4TP has a built-in power module and does not support
pluggable power modules.
Heat Dissipation
The S1720-28GFR-4TP has no fans and uses natural heat dissipation.
Technical Specifications
Table 5-13
Table 5-13 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
The ground cable is not delivered with
the switch.
AC power socket
NOTE
It is used with an AC power cable.
lists technical specifications of the S1720-28GFR-4TP.
Description
256 MB
200 MB
65.66 years
2 hours
> 0.99999
Common mode: ±6 kV
±6 kV in differential mode, ±6 kV in common mode
Copyright © Huawei Technologies Co., Ltd.
8 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
43