The S series fixed Ethernet switches integrate the access and transmission functions to provide reliable access/aggregation and high-quality transmission of services on enterprise networks. The switches are built on an integrated hardware platform, and their hardware system consists of the chassis, power module, fan module, extended cards, and Switch Control Unit (SCU).
The S series fixed Ethernet switches are available in a variety of models for you to choose based on your network requirements.
S6700 Series Switches Characteristics The S6700 series Ethernet switches are next-generation 10G fixed switches. The S6700 can function as a core switch on a campus network. The S6700 has industry-leading performance and provides line-speed 10GE access ports and line-speed 40GE even 100GE uplink ports. It can function as a core switch on a campus network to provide 40 Gbit/s even 100 Gbit/s traffic aggregation.
The Huawei S6720-52X-PWH-SI is a high-density, high-performance PoE + 10 Gigabit switch from the Huawei S6720 series. Its core advantage is its ability to create pure optical uplink networks for medium to large-scale high-density PoE scenarios. It features 48 Gigabit Ethernet ports supporting PoE + Power Supply (maximum power of 30W per port, total PoE power ≥740W), 4 pure 10 Gigabit optical ports dedicated to high-speed uplink, and no redundant Gigabit optical ports to better suit high-density access requirements, supporting 4000-6000 terminals. It boasts a total switching capacity ≥598Gbps, forwarding performance up to 216Mpps, and supports enterprise-level functions such as PoE intelligent power allocation, link aggregation, and basic QoS. With built-in 9KV surge protection + PoE overload protection, its annual failure rate is <0.02%. It is the preferred choice for high-density office APs, bulk IP monitoring, and medium to large-scale campus access layers that balance high-density power supply, bandwidth, and streamlined deployment.
S6720-52X-PWH-SI FAQ
Q1: What are the core differences between this model and the S6720-56C-PWH-SI (with 4 Gigabit optical ports) in the same series?
A1: The former is a high-density pure optical uplink model, retaining only 4 10 Gigabit optical ports for uplink, with no redundant Gigabit optical ports, making it more suitable for high-density access scenarios; the latter has 4 more Gigabit optical ports, suitable for mixed scenarios requiring Gigabit cascading. Both have the same PoE power supply capability.
Q2: Is the total power sufficient for 48 ports simultaneously connected to PoE+ devices?
A2: Yes, it is sufficient. The total PoE power is ≥740W, supporting 48 ports simultaneously connected to 15.4W standard PoE devices, or 30 ports connected to 30W PoE+ devices, meeting the needs of most high-density PoE scenarios, and with intelligent power allocation, it avoids overload.
Q3: What are the practical advantages of pure optical uplink compared to models with Gigabit optical ports?
A3: Pure optical uplink bandwidth is higher (10 Gigabit level), transmission distance is longer, anti-interference is stronger, and the absence of redundant interfaces can reduce the risk of misoperation, while reducing equipment costs. It is more suitable for the needs of centralized access and high-speed uplink in medium and large-scale scenarios.
512 MB in total. To view the available flash memory size, run the display version command.
Mean time between failures (MTBF)
35.1 years
Mean time to repair (MTTR)
2 hours
Availability
> 0.99999
Service port surge protection
Common mode: ±7 kV
Power supply surge protection
Using 1000 W AC power modules: ±6 kV in differential mode, ±6 kV in common mode
Using 1150 W AC power modules: ±2 kV in differential mode, ±4 kV in common mode
Dimensions (H x W x D)
Basic dimensions (excluding the parts protruding from the body): 44.4 mm x 442.0 mm x 425.0 mm (1.75 in. x 17.4 in. x 16.73 in.)
Maximum dimensions (the depth is the distance from ports on the front panel to the handle on the rear panel): 44.4 mm x 442.0 mm x 451.3 mm (1.75 in. x 17.4 in. x 17.77 in.)
When 1150 W power modules are installed, they stretch out from the chassis. Therefore, the total depth of the switch changes to 541.1 mm (21.3 in.).
Weight (with packaging)
7 kg (15.43 lb)
Stack ports
Any MultiGE or 10GE SFP+ ports (a maximum of 16 physical ports)
RTC
Supported
RPS
Not supported
PoE
Supported
Rated voltage range
100 V AC to 240 V AC, 50/60 Hz
-48 V DC to -60 V DC
Maximum voltage range
90 V AC to 264 V AC, 47 Hz to 63 Hz
-38.4 V DC to -72 V DC
Maximum power consumption (100% throughput, full speed of fans)
Using 650 W DC power modules
Not providing the PoE function: 207.4 W
100% PoE loads: 940 W (system power consumption: 200.8 W, PoE: 739.2 W)
Using 1150 W AC or 1000 W AC power modules
Not providing the PoE function: 236.8 W
100% PoE loads: 1724.4 W (system power consumption: 284.4 W, PoE: 1440 W)
Typical power consumption (30% of traffic load, tested according to ATIS standard)
159.5 W (without PoE)
Operating temperature
0°C to 45°C (32°F to 113°F) at an altitude of 0-1800 m (0-5906 ft.)
NOTE:
When the altitude is 1800-5000 m (5906-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (722 ft.).
Short-term operating temperature
-5°C to +50°C (23°F to 122°F) at an altitude of 0-1800 m (0-5906 ft.)
NOTE:
When the altitude is 1800-5000 m (5906-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (722 ft.).
The equipment can operate beyond the normal operating temperature range for a short-term period, but the following conditions must be met:
The equipment operates at a temperature of over 45°C (113°F) consecutively for at most 96 hours in one year.
The equipment operates at a temperature of over 45°C (113°F) for a total of no more than 360 hours in one year.
The equipment operates at a temperature of over 45°C (113°F) for no more in 15 times in one year.
The equipment may be damaged or experience unexpected exceptions if any of the preceding limits is exceeded.
The equipment cannot start when the temperature is lower than 0°C (32°F). The maximum distance of optical modules used in these conditions cannot exceed 10 km.
Storage temperature
-40°C to +70°C (-40°F to +158°F)
Noise under normal temperature (27°C, sound power)
< 66.4 dB(A)
Relative humidity
5% to 95%, noncondensing
Operating altitude
0-5000 m (0-16404 ft.)
Certification
EMC certification
Safety certification
Manufacturing certification
Part number
98010743
Optical Modules Supported by Huawei S Series Switches