Huawei S1720-52GWR-4X - Page 145

Heat Dissipation
The S1720-52GWR-PWR-4X has two built-in fans for forced air cooling. The
airow direction is left-to-right.
Technical Specications
Table 5-33 lists technical specications of the S1720-52GWR-PWR-4X.
Table 5-33 Technical
specications
Item Description
Memory (RAM) 512 MB
Flash 512 MB in total, 240 MB available for customers
Mean time
between failures
(MTBF)
38 years
Mean time to
repair (MTTR)
2 hours
Availability > 0.99999
Service port
surge protection
Common mode: ±7 kV
Power supply
surge protection
±6 kV in dierential mode, ±6 kV in common mode
Dimensions (H x
W x D)
43.6 mm x 442.0 mm x 310.0 mm (1.72 in. x 17.4 in. x 12.2
in.)
Weight
(including
packaging)
5.6 kg (12.35 lb)
Stack ports Not supported
RTC Not supported
RPS Not supported
PoE Supported
Rated voltage
range
100 V AC to 240 V AC, 50/60 Hz
Maximum
voltage range
90 V AC to 264 V AC, 47 Hz to 63 Hz
S1700 Managed Series Ethernet Switches
Product Description
5 Hardware Structure
Issue 18 (2020-10-23) Copyright © Huawei Technologies Co., Ltd. 111