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 S6720S-26Q-SI-24S-AC is an upgraded AC-powered balanced 10 Gigabit switch in the Huawei S6720S series. Its core advantage is "high-bandwidth and stable upgrade for small and medium-sized AC-powered scenarios"—a hybrid configuration of 24 10G optical ports + 2 40G optical ports, adaptable to 3000-5000 terminals; AC input voltage supports a wide range of 100-240V; upgraded hardware architecture and heat dissipation design; total switching capacity ≥620Gbps; forwarding performance up to 216Mpps; supports enterprise-level functions such as link aggregation, VRRP, and intelligent traffic scheduling; built-in 9KV surge protection + AC/hardware dual protection; annual failure rate <0.02%; making it the preferred choice for small and medium-sized campuses, data centers, and office high-bandwidth scenarios that "balance performance upgrades, stable power supply, and cost".
S6720S-26Q-SI-24S-AC FAQ
Q1: What are the core differences between this and the older S6720-26Q-SI-24S-AC model?
A1: The former is an upgraded model with enhanced hardware architecture, heat dissipation, and anti-interference capabilities, resulting in superior stability. The latter is the basic model, offering the same core functions at a more cost-effective price. Both are suitable for high-bandwidth AC-powered scenarios.
Q2: Will there be a bandwidth bottleneck when running 24 ports (10G) and 2 ports (40G) under high load simultaneously?
A2: No. With a total switching capacity ≥620Gbps and forwarding performance reaching 216Mpps, coupled with 40G high-speed uplink and intelligent traffic scheduling, it can easily handle 5000 concurrent terminal transmissions without lag or packet loss.
Q3: Is it necessary to choose the upgraded AC-powered switch for small to medium-sized scenarios?
A3: The upgraded model addresses the stability issues of the older model, while the 40G uplink meets high bandwidth requirements. AC power supply is compatible with ordinary mains power, and balanced configuration avoids resource waste. It is a cost-effective choice that combines stability and upgrades.
S6720S-26Q-SI-24S-AC Appearance
1
Twenty-four 10GE SFP+ ports
Applicable modules and cables:
GE optical module
GE-CWDM optical module
GE-DWDM optical module
GE copper module (100M/1000M auto-sensing)
10GE SFP+ optical module (OSXD22N00 not supported)
10GE-CWDM optical module
10GE-DWDM optical module
1 m, 3 m, 5 m, and 10 m SFP+ high-speed copper cables
3 m and 10 m SFP+ AOC cables
0.5 m and 1.5 m SFP+ dedicated stack copper cables (the last 16 ports are supported, used for zero-configuration stacking, supported in V200R011C10 and later versions)
2
Two 40GE QSFP+ ports
Applicable modules and cables:
QSFP+ optical module
1 m, 3 m, and 5 m QSFP+ to QSFP+ high-speed copper cables
1 m, 3 m, and 5 m QSFP+ to 4*SFP+ high-speed copper cables
10 m QSFP+ to QSFP+ AOC cable
10 m QSFP+ to 4*SFP+ AOC cable
NOTE:
A 40GE QSFP+ optical port can be split into four 10GE ports.
3
One PNP button
NOTICE:
Applicable in V200R012C00 and later versions:
To restore the factory settings and reset the switch, hold down the button for at least 6 seconds.
To reset the switch, press the button.
Resetting the switch will cause service interruption. Exercise caution when you press the PNP button.
4
One ETH management port
5
One console port
6
One USB port
7
Ground screw
NOTE:
It is used with a ground cable.
8
ESN label
NOTE:
You can draw it out to view the ESN and MAC address of the switch.
9
Fan slot
NOTE:
Applicable fan module: FAN-046A-B Fan Module
10
Power module slot 2
NOTE:
Applicable power modules:
150 W AC power module
150 W DC power module
11
Power module slot 1
NOTE:
Applicable power modules:
150 W AC power module
150 W DC power module
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S6720S-26Q-SI-24S-ACPort Description
10GE SFP+ port
Attribute
Description
Connector type
LC/PC
Optical port attributes
Depend on the optical module used
Standards compliance
IEEE802.3ae
Working mode
GE/10GE auto-sensing
40GE QSFP+ port
Attribute
Description
Connector type
MPO/LC
Optical port attributes
Depend on the optical module used
Standards compliance
IEEE802.3ba
Technical specifications of the S6720S-26Q-SI-24S-AC
Item
Description
Memory (RAM)
1 GB
Flash
512 MB in total. To view the available flash memory size, run the display version command.
Mean time between failures (MTBF)
41.9 years
Mean time to repair (MTTR)
2 hours
Availability
> 0.99999
Service port surge protection
NA
Power supply surge protection
Using AC power modules: ±6 kV in differential mode, ±6 kV in common mode
Using DC power modules: ±1 kV in differential mode, ±2 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.)
Weight (including package)
8.9 kg (19.62 lb)
Stack ports
Any 10GE SFP+ ports (a maximum of 16 physical ports)
Any 40GE QSFP+ ports (a maximum of 2 physical ports)
RTC
Supported
RPS
Not supported
PoE
Not 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
-36 V DC to -72 V DC
Maximum power consumption (100% throughput, full speed of fans)
97 W
Typical power consumption (30% of traffic load, tested according to ATIS standard)
68.4 W
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)
< 57 dB(A)
Relative humidity
5% to 95%, noncondensing
Operating altitude
AC power modules configured: 0-5000 m (0-16404 ft.)
DC power modules configured: 0-2000 m (0-6562 ft.)
Certification
EMC certification
Safety certification
Manufacturing certification
Part number
98010691
Optical Modules Supported by Huawei S Series Switches