| Specification of S5755-H24T4Y2CZ | |
| Ports | 24*10/100/1000BASE-T ports, 4*25GE SFP28 ports, 2*100GE QSFP28 ports, expansion card slot, without power module |
| Dimensions without packaging (H x W x D) |
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) | 145.0 mm x 650.0 mm x 550.0 mm (5.71 in. x 25.59 in. x 21.65 in.) |
| Chassis height | 1 U |
| Chassis material | Metal |
| Weight without packaging | 5.78 kg (12.74 lb) |
| Weight with packaging | 7.65 kg (16.87 lb) |
| Typical power consumption |
30% traffic under the ATIS standard, dual power supplies:
|
| Typical heat dissipation |
30% traffic under the ATIS standard, dual power supplies:
|
| Maximum power consumption |
100% traffic under the ATIS standard, dual power modules:
|
| Maximum heat dissipation |
100% traffic under the ATIS standard, dual power modules:
|
| Static power consumption | 51 W |
| MTBF | 95.25 years |
| Availability | > 0.99999 |
| Noise at normal temperature (acoustic power) | 48.1 dBA |
| Noise at normal temperature (acoustic pressure) | 36.1 dBA |
| Number of card slots | 1 |
| Number of power slots | 2 |
| Number of fans modules | 2 |
| Redundant power supply |
1+1 Pluggable AC and DC power modules can be used together on the same device. |
| Long-term operating temperature | –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 | -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 |
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. The device 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 cannot exceed 10 km. When the QSFP-100G-ER4 or QSFP-100G-LR1 optical module is used, the operating temperature ranges from -5°C to +40°C (23°F to 104°F). |
| Storage temperature | –40°C to +70°C (–40°F to +158°F) |
| Long-term operating relative humidity | 5% RH to 95% RH, non-condensing |
| Long-term operating altitude | 0–5000 m (0–16404 ft.) |
| Storage altitude | 0-5000 m (0-16404 ft.) |
| Power supply mode | Pluggable power supply |
| Rated input voltage |
|
| Input voltage range |
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| Maximum input current | The current specifications are related to the pluggable power module. For details, see Pluggable Power Modules. |
| Memory | 4 GB |
| Flash memory | Physical space: 2 GB |
| Console port | RJ45 |
| Eth Management port | RJ45 |
| USB | Supported |
| RTC | Supported |
| RPS input | Not supported |
| Power supply surge protection |
|
| 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 left, front, and right and air exhaust from rear |
| PoE | Not supported |
| Certification |
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What is a Switch?
A switch is a device that enables communication between two or more IT devices, such as computers, servers, printers, and more. It helps devices within a network share resources, including printers, file storage, internet access, and application processing. In simple terms, a switch acts as a "traffic hub" in a network.
Key Characteristics:
Intelligent Forwarding: Unlike a basic hub, a switch intelligently directs data packets only to the intended recipient device based on MAC addresses.
Efficient Communication: This targeted data transmission reduces unnecessary traffic, enhances network performance, and improves security within the local network.
Scalability: Switches come in various sizes, from small desktop models for home/office use to large modular switches for enterprise data centers.
Common Applications:
Connecting devices within a Local Area Network (LAN)
Building enterprise networks, data centers, or home networks
Supporting resource sharing and collaborative workflows
In summary, a switch is a fundamental networking device that efficiently manages and directs data flow, ensuring smooth and reliable communication between connected devices.
Core Functions of a Switch
The primary functions of a switch include:
VLAN Segmentation – Enhances network security by isolating traffic into separate virtual networks.
Targeted Forwarding – Improves network performance by accurately identifying and forwarding data only to the intended destination device.
Traffic Control – Optimizes network reliability and stability through mechanisms like Quality of Service (QoS) and loop prevention (e.g., Spanning Tree Protocol).
Link Aggregation – Increases bandwidth and provides redundancy by combining multiple physical links into a single logical channel.
