Huawei S1700 Series Manual page 72

S1700 Managed Series Ethernet Switches
Product Description
Heat Dissipation
The S1720-20GFR-4TP has no fans and uses natural heat dissipation.
Technical Specifications
Table 5-11
Table 5-11 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
Dimensions (H x
W x D)
Weight
(including
packaging)
Stack ports
RTC
RPS
PoE
Rated voltage
range
Maximum
voltage range
Maximum power
consumption
(100%
throughput)
Issue 18 (2020-10-23)
lists technical specifications of the S1720-20GFR-4TP.
Description
256 MB
200 MB
67 years
2 hours
> 0.99999
Common mode: ±6 kV
±6 kV in differential mode, ±6 kV in common mode
43.6 mm x 442.0 mm x 220.0 mm (1.72 in. x 17.4 in. x 8.7
in.)
3.5 kg (7.72 lb)
Not supported
Not supported
Not supported
Not supported
100 V AC to 240 V AC, 50/60 Hz
90 V AC to 264 V AC, 47 Hz to 63 Hz
20.7 W
Copyright © Huawei Technologies Co., Ltd.
5 Hardware Structure
38