Enterprise Switch S5755-S48UN8YZ Access Switch With 48*10/100/1000/2.5G BASE-T ports (PoE++)
● Model No.:S5755-S48UN8YZ
● Size:145.0 mm x 650.0 mm x 550.0 mm
● Port details: 48*10/100/1000/2.5G BASE-T ports (PoE++), 8*25GE SFP28 ports, expansion card slot, without power module
● Place of Origin: Guangdong, China
● exchange capacity:672 Mpps
●security features:Dual intelligent speed regulating fans, redundant hot swappable
● Warranty: 1years
● MOQ: 1 pieces
Application scenarios
1. Wi Fi 7 high-density wireless coverage (core scenario)
Scenario: High density wireless coverage in office buildings, parks, campuses, shopping malls, and hotels
Usage: PoE+port connected to Wi Fi 7 AP (90W), non PoE port connected to 2.5G wired desktop, server, etc NAS
Advantages: A single 48 port device can meet the requirements of large-scale wireless and wired mixed access, and a 25GE uplink ensures concurrent bandwidth
2. High definition monitoring+office hybrid networking
Scenario: Park monitoring center, weak current room, mixed access IPC and office terminal
Usage: PoE++interface 4K/8K panoramic ball camera, facial recognition IPC; Non PoE port connected to NVR, monitoring server, office PC
Advantages: High power supply+high-speed data, 25GE uplink ensures video stream without buffering, multi service isolation
3. Mixed access to enterprise floors/weak current rooms
Scenario: Large enterprises, R&D centers, open office areas
Purpose: To simultaneously support Wi Fi 6/7 APs, IP phones, access control/gates, 2.5G desktops, servers, and IoT devices
Advantages: Three layer routing+VxLAN, achieving secure isolation of multiple services including office, wireless, monitoring, and IoT
4. Education/healthcare/government intranet (high compliance)
Scene: Classroom, Ward, Government Hall, Financial Branch
Usage: Access wireless APs, teaching terminals, medical equipment, office PCs, one card/access control
Advantages: Security access+business isolation+high-power PoE, meeting high reliability and compliance requirements
5. Internet of Things (IoT) hybrid access
Scenario: Smart Park, Factory, Supermarket
Usage: PoE++port connected high-power IoT gateway, camera, sensor; Non PoE ports connected to industrial computers and servers
Advantages: Hybrid power supply+high-speed access, suitable for complex IoT networking
Introduction
1. U+N hybrid PoE design (core differentiation)
48 ports are compatible with both PoE++(90W) high-power power supply and pure 2.5G high-speed non PoE data ports, allowing for flexible allocation of port roles
Addressing the pain points of mixed scenarios that require both high-power PoE (Wi Fi 7 AP, 4K dome camera) and pure high-speed data (2.5G PC, server) to avoid wasting PoE resources
Single port 90W: Perfectly compatible with Wi Fi 7 AP (60-90W), facial recognition gate, panoramic ball camera, high-power IoT devices
2. 2.5G+25GE high-speed architecture
Downstream 2.5G adaptive: 2.5 times higher than gigabit bandwidth, compatible with Wi Fi 7 and 2.5G network card terminals, eliminating wireless feedback bottlenecks
Upstream 8 × 25GE: Supports high-density wireless/video/wired traffic uplink, realizing a new generation of park networking with "2.5G access and 25GE aggregation"
3. Dual expansion slots+virtualization for high reliability
2 expansion slots: Supports iStack intelligent stacking (up to 9 units), 25GE expansion, business cards, unified management, cross device link aggregation, and minimalist expansion and operation
Three layer full functionality: IPv4/IPv6 dual stack, static/RIP/OSPF, VxLAN, SRv6, meeting multi service isolation and cross network segment interoperability
High reliability: N+1 power redundancy SmartLink/VRRP、MACsec、iPCA2.0， Ensure stable operation of 7 × 24
4. Security and QoS
802.1X、ACL、 Port security, terminal access, MACsec encryption, meet security/intranet compliance requirements
Hardware level QoS, multicast optimization, traffic shaping, ensuring priority of video, voice, and data services
Detailed description
| Item | Specification |
|---|---|
| Dimensions without packaging (H x W x D) [mm(in.)] |
Basic dimensions (excluding the parts protruding from the body): 43.6 mm x 442.0 mm x 420.0 mm (1.72 in. x 17.40 in. x 16.54 in.) Maximum dimensions (the depth is the distance from ports on the front panel to the parts protruding from the rear panel): 43.6 mm x 442.0 mm x 454.0 mm (1.72 in. x 17.4 in. x 17.87 in.) |
| Dimensions with packaging (H x W x D) [mm(in.)] | 145.0 mm x 650.0 mm x 550.0 mm (5.71 in. x 25.59 in. x 21.65 in.) |
| Chassis height [U] | 1 U |
| Chassis material | Metal |
| Weight without packaging [kg(lb)] | 6.74 kg (14.86 lb) |
| Weight with packaging [kg(lb)] | 8.35 kg (18.41 lb) |
| Typical power consumption [W] |
30% traffic under the ATIS standard, dual power modules: - 138 W (all ports used) |
| Typical heat dissipation [BTU/hour] |
30% traffic under the ATIS standard, dual power modules: - 470.87 (all ports used) |
| Maximum power consumption [W] |
100% traffic under the ATIS standard, dual power modules, and without PoE: - 143 W (all ports used) Full PoE load, three 1000 W power modules: 3319 W (PoE: 2833 W) |
| Maximum heat dissipation [BTU/hour] |
100% traffic under the ATIS standard, dual power modules, and without PoE: • 487.93 (all ports used) Full PoE load, three 1000 W power modules: 8005.76 |
| Static power consumption [W] | 64 W |
| MTBF [years] | 37.92 years |
| Availability | > 0.99999 |
| Noise at normal temperature (acoustic power) [dB(A)] | 51.1 dB(A) |
| Noise at normal temperature (acoustic pressure) [dB(A)] | 37.42 dB(A) |
| Number of card slots | 1 |
| Number of power slots | 3 |
| Number of fans modules | 2 |
| Redundant power supply |
1+1+1 Pluggable AC and DC power modules can be used together in the same switch. |
| Long-term operating temperature [°C(°F)] | –5°C to +45°C (23°F to 113°F) at an altitude of 0 to 1800 m (0 to 5905.44 ft.) |
| Short-term operating temperature [°C(°F)] | -5°C to +50°C (23°F to 122°F) at an altitude of 0-1800 m (0-5905.44 ft.) |
| Restriction on the operating temperature variation rate [°C(°F)] |
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 device can work for a short period of time when the operating temperature is beyond the normal range, but the following conditions must be met:
If any of the preceding conditions is not met, the device may be damaged or an unknown error may occur. Devices cannot start when the temperature is lower than 0°C (32°F). The maximum transmission distance of an optical module used for short-term operation at 50°C (122°F) cannot exceed 10 km. |
| Storage temperature [°C(°F)] | –40°C to +70°C (–40°F to +158°F) |
| Long-term operating relative humidity [RH] | 5% RH to 95% RH, non-condensing |
| Long-term operating altitude [m(ft.)] | 0–5000 m (0–16404 ft.) |
| Storage altitude [m(ft.)] | 0-5000 m (0-16404 ft.) |
| Power supply mode | Pluggable power supply |
| Rated input voltage [V] |
|
| Input voltage range [V] |
|
| Maximum input current [A] | The current specifications are related to the pluggable power module. For details, see Pluggable Power Modules. |
| Memory | 4 GB |
| Flash memory | Physical space: 1 GB |
| Console port | RJ45 |
| Eth Management port | RJ45 |
| USB | Supported |
| RTC | Supported |
| RPS input | Not supported |
| Power supply surge protection [kV] |
|
| Ingress protection level (dustproof/waterproof) | IP20 |
| Types of fans | Pluggable |
| Heat dissipation mode | Air cooling for heat dissipation, intelligent fan speed adjustment |
| Airflow direction | Air intake from front, air exhaustion from rear (front-to-rear) |
| PoE | Supported |
| Certification |
EMC certification Safety certification Manufacturing certification |
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