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Overview
The HP JL253A is a networking switch designed for efficiency and scalability, catering to businesses looking for reliable connectivity solutions. This device stands out with its comprehensive array of I/O ports and slots, dimensions tailored for standard rack mounting, and operational parameters that ensure its performance in various environments.
At the core of its connectivity options, the HP JL253A features 24 RJ-45 autosensing 10/100/1000 ports that support different Ethernet standards, including IEEE 802.3 Type 10BASE-T for Ethernet, IEEE 802.3u Type 100BASE-TX for Fast Ethernet, and IEEE 802.3ab Type 1000BASE-T for Gigabit Ethernet. These ports adapt to the connected device's speed, facilitating seamless integration into existing networks. Duplex settings vary, with 10BASE-T/100BASE-TX supporting half or full duplex, while 1000BASE-T operates in full duplex only, enhancing data transfer rates and network efficiency.
- 4 SFP+ 1/10GbE ports provide high-speed uplink capabilities without an internal physical layer entity (PHY), enabling direct connection to high-speed network infrastructure.
- A versatile dual-personality port serves as either an RJ-45 or USB micro-B serial console port, offering flexibility in management and setup configurations.
- Comprehensive environmental tolerance ensures reliable operation across a wide range of temperatures and humidity levels.
Specs
| Part Number and Manufacturer | HP JL253A |
| Ports and Slots | 24 Ethernet ports supporting 10/100/1000 Mbps (compliant with IEEE 802.3, 802.3u, and 802.3ab); Duplex settings: Half/full for 10/100 Mbps, full only for 1000 Mbps |
| Additional Ports | 4 SFP+ ports for 1/10 GbE connections, without PHY |
| Other Interfaces | 1 console port with dual interface options: RJ-45 or USB micro-B |
| Width | 17.42 inches (44.25 cm), standard 1U rack-mountable |
| Depth | 7.88 inches (20.02 cm), standard 1U form factor |
| Height | 1.73 inches (4.39 cm), occupies 1U rack space |
| Weight | 5.31 pounds (2.41 kg) |
| Operational Temperature Range | 32°F to 113°F (0°C to 45°C) at sea level, reduces to 32°F to 104°F (0°C to 40°C) at 10,000 feet altitude |
| Operating Humidity | 15% to 95% at 104°F (40°C), without condensation |
| Storage Temperature | -40°F to 158°F (-40°C to 70°C) up to 15,000 feet altitude |
| Storage Humidity | 15% to 95% at 149°F (65°C), without condensation |
| Acoustic Levels | Power noise: 49.7 dB, Air pressure noise: 37.1 dB |
| Airflow | Side-to-side circulation |
| Power Frequency | 50/60 Hz |
| Heat Dissipation | 100.0 BTU/hr (105.5 Kj/hr) |
| Electrical Voltage | 100 - 127 / 200 - 240 VAC, nominal |
| Electrical Current | 0.6 A for 100-127 V, 0.4 A for 200-240 V |
| Maximum Power Consumption | 29.3 Watts |
| Idle Power Consumption | 19.5 Watts |
| Emission Standards | EN 55032:2012/CISPR 32, FCC CFR 47 Part 15, VCCI, ICES-003, CNS 13438 - all Class A |
| EMC Compliance | EN 55024:2010/CISPR 24; ESD: IEC 61000-4-2; Radiated: IEC 61000-4-3; EFT/Burst: IEC 61000-4-4; Surge: IEC 61000-4-5 |
JL253A
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Product Description
The JL253A HP features 24 RJ-45 autosensing 10/100/1000 ports and 4 SFP+ 1/10GbE ports, supporting a range of network speeds and allowing for flexible connections. It also includes a dual-personality (RJ-45 or USB micro-B) serial console port for management purposes. Designed for efficiency, it operates within a temperature range of 0°C to 45°C, supports a maximum power rating of 29.3 W, and adheres to various emissions standards including EN 55032:2012 and FCC CFR 47 Part 15 Class A.FAQs for the JL253A
- What type of I/O ports and slots are available on this device?
The device is equipped with 24 RJ-45 autosensing 10/100/1000 ports compliant with IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX, and IEEE 802.3ab Type 1000BASE-T standards. It also includes 4 SFP+ 1/10GbE ports that are PHY-less, and 1 dual-personality (RJ-45 or USB micro-B) serial console port. - How does the device's airflow direction function?
Airflow direction is designed to move from side to side. - Can you provide the dimensions and weight of the device?
The dimensions are 17.42 inches in width, 7.88 inches in depth, and 1.73 inches in height, making the unit a 1U height device. It weighs 5.31 lb (2.41 kg). - What is the device's operating temperature range?
The operating temperature ranges from 32°F to 113°F (0°C to 45°C) up to 5,000 feet elevation, and from 32°F to 104°F (0°C to 40°C) up to 10,000 feet elevation. - What are the power specifications of the device?
The device operates on 100 - 127 / 200 - 240 VAC, with a current of 0.6/0.4 A. It has a maximum power rating of 29.3 W, an idle power of 19.5 W, and a maximum heat dissipation of 100.0 BTU/hr (105.5 kj/hr). - What are the device's storage conditions?
For non-operating or storage, the temperature range is -40°F to 158°F (-40°C to 70°C) up to 15,000 feet elevation. The relative humidity range is 15% to 95% at 149°F (65°C), noncondensing. - What are the acoustic levels for power and pressure?
The acoustic power is measured at 49.7 dB and acoustic pressure at 37.1 dB. - What compliances does the device meet for emissions?
The device complies with EN 55032:2012/CISPR 32 Class A, FCC CFR 47 Part 15 Class A, VCCI Class A, ICES-003 Class A, and CNS 13438 for emissions. - What is the device's relative humidity operating range?
The operating relative humidity range is 15% to 95% at 104°F (40°C), noncondensing. - What electrical safety and immunity standards does the device adhere to?
For electrical safety and immunity, it meets EN 55024:2010/CISPR 24, and standards IEC 61000-4-2 for ESD, IEC 61000-4-3 for Radiated, IEC 61000-4-4 for EFT/Burst, and IEC 61000-4-5 for Surge.
Product Review
The HP JL253A offers a solid array of connectivity options with 24 RJ-45 auto-sensing 10/100/1000 ports and 4 SFP+ 1/10GbE ports, catering to a variety of network demands. However, its operating temperature range is limited to 32°F to 113°F (0°C to 45°C), which may restrict deployment in environments with extreme temperatures. Additionally, while its compact 1U size and weight of 5.31 lb (2.41 kg) allow for efficient use of rack space, the device's maximum power rating of 29.3 W and idle power consumption of 19.5 W could be a concern for energy-conscious setups.
Overview
The HP JL253A is a networking switch designed for efficiency and scalability, catering to businesses looking for reliable connectivity solutions. This device stands out with its comprehensive array of I/O ports and slots, dimensions tailored for standard rack mounting, and operational parameters that ensure its performance in various environments.
At the core of its connectivity options, the HP JL253A features 24 RJ-45 autosensing 10/100/1000 ports that support different Ethernet standards, including IEEE 802.3 Type 10BASE-T for Ethernet, IEEE 802.3u Type 100BASE-TX for Fast Ethernet, and IEEE 802.3ab Type 1000BASE-T for Gigabit Ethernet. These ports adapt to the connected device's speed, facilitating seamless integration into existing networks. Duplex settings vary, with 10BASE-T/100BASE-TX supporting half or full duplex, while 1000BASE-T operates in full duplex only, enhancing data transfer rates and network efficiency.
- 4 SFP+ 1/10GbE ports provide high-speed uplink capabilities without an internal physical layer entity (PHY), enabling direct connection to high-speed network infrastructure.
- A versatile dual-personality port serves as either an RJ-45 or USB micro-B serial console port, offering flexibility in management and setup configurations.
- Comprehensive environmental tolerance ensures reliable operation across a wide range of temperatures and humidity levels.
Specifications
| Part Number and Manufacturer | HP JL253A |
| Ports and Slots | 24 Ethernet ports supporting 10/100/1000 Mbps (compliant with IEEE 802.3, 802.3u, and 802.3ab); Duplex settings: Half/full for 10/100 Mbps, full only for 1000 Mbps |
| Additional Ports | 4 SFP+ ports for 1/10 GbE connections, without PHY |
| Other Interfaces | 1 console port with dual interface options: RJ-45 or USB micro-B |
| Width | 17.42 inches (44.25 cm), standard 1U rack-mountable |
| Depth | 7.88 inches (20.02 cm), standard 1U form factor |
| Height | 1.73 inches (4.39 cm), occupies 1U rack space |
| Weight | 5.31 pounds (2.41 kg) |
| Operational Temperature Range | 32°F to 113°F (0°C to 45°C) at sea level, reduces to 32°F to 104°F (0°C to 40°C) at 10,000 feet altitude |
| Operating Humidity | 15% to 95% at 104°F (40°C), without condensation |
| Storage Temperature | -40°F to 158°F (-40°C to 70°C) up to 15,000 feet altitude |
| Storage Humidity | 15% to 95% at 149°F (65°C), without condensation |
| Acoustic Levels | Power noise: 49.7 dB, Air pressure noise: 37.1 dB |
| Airflow | Side-to-side circulation |
| Power Frequency | 50/60 Hz |
| Heat Dissipation | 100.0 BTU/hr (105.5 Kj/hr) |
| Electrical Voltage | 100 - 127 / 200 - 240 VAC, nominal |
| Electrical Current | 0.6 A for 100-127 V, 0.4 A for 200-240 V |
| Maximum Power Consumption | 29.3 Watts |
| Idle Power Consumption | 19.5 Watts |
| Emission Standards | EN 55032:2012/CISPR 32, FCC CFR 47 Part 15, VCCI, ICES-003, CNS 13438 - all Class A |
| EMC Compliance | EN 55024:2010/CISPR 24; ESD: IEC 61000-4-2; Radiated: IEC 61000-4-3; EFT/Burst: IEC 61000-4-4; Surge: IEC 61000-4-5 |