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J4859D (5 Units)
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Aruba 1G SFP LC LX 10km SMF Transceivers (5 Units)
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J4859D (5 Units)
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- Aruba 1G SFP LC LX 10km SMF Transceivers (5 Units)
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J4859D (5 Units) Overview
J4859D (5 Units) QSFP+ transceiver modules deliver 40G data rate performance with LC connector interfaces and short-range transmission capabilities for multi-mode fiber, making them ideal for high-density data center and enterprise network applications. Designed with industry-standard form factors, these modules offer compact physical dimensions and reliable Ethernet protocol support for streamlined network integration.
J4859D (5 Units) modules are engineered to ensure optimal performance in telecom and data center infrastructures. With their robust design, these QSFP+ transceivers provide consistent connectivity, low power consumption, and seamless compatibility with major vendors such as Cisco, Juniper, Huawei, and Arista, making them a trusted choice for modern network deployments.
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J4859D (5 Units) Specifications
- Product Type
- Transceiver
- Form Factor
- QSFP+
- Data Rate
- 40G
- Connector Type
- LC
- Wavelength
- 850 nm
- Transmission Distance
- Short-Range
- Fiber Type
- Multi-mode
- Max Distance
- 300 meters
- Supported Protocols
- Ethernet
- Network Interface
- Fiber
- Power Consumption
- 3.5W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco, Juniper, Huawei, Arista
- Product Name
- J4859D QSFP+ Transceiver Module (5 Units)
- Height
- 0.9 inches
- Width
- 0.7 inches
- Depth
- 0.4 inches
- Weight
- 0.2 lbs
J4859D (5 Units) Use Case
Data Center Inter-Switch Fiber Link with Aruba J4859D 1G SFP LC LX
In a multi-rack data center environment, network engineers deployed five units of Aruba J4859D 1G SFP LC LX 10 km SMF transceivers to interconnect core and aggregation switches over single-mode fiber. This setup ensures low-latency, congestion-free traffic flow across racks up to 10 km apart, delivering predictable 1 Gbps bandwidth and seamless switch-to-switch interoperability. The outcome: simplified cable management, reduced port conflicts, and a resilient backbone that meets strict uptime SLAs.
Campus Backbone Connection Across University Buildings
A university IT team needed a cost-effective, high-reliability link to connect multiple academic buildings across a 7 km campus span. By installing five Aruba J4859D 1G SFP LC LX transceivers on both ends of existing single-mode fiber, they achieved consistent 1 Gbps connectivity for VoIP, e-learning platforms, and administrative systems. The result: lowered cabling costs, centralized network management, and guaranteed performance for mission-critical applications.
Remote Surveillance Network Extension for Industrial Facility
An industrial plant integrated CCTV and access-control systems located in an offsite security outpost 9 km from the main control room. Utilizing five Aruba J4859D 1G SFP LC LX 10 km SMF transceivers, operators established a dedicated fiber-based 1 Gbps channel that supports real-time video streams and alarm data. This solution delivered interference-free monitoring with ultra-low packet loss, ensuring rapid incident response and compliance with enterprise safety standards.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| J4859D (5 Units) |  JL308 |  J4858C |  J9283D |  JH232A | |
|---|---|---|---|---|---|
| Compatibility | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Connector Type | LC | LC | LC | LC | LC |
| Data Rate | 40G | 10G | 10G | 10G | 10G |
| Depth | 0.4 inches | 0.75 inches | 0.65 inches | 0.65 inches | 0.50 inches |
| Fiber Type | Multi-mode | Multi-mode | Multi-mode | Single-mode | Multi-mode |
| Form Factor | QSFP+ | SFP+ | SFP+ | SFP+ | SFP+ |
| Height | 0.9 inches | 0.125 inches | 0.12 inches | 0.28 inches | 0.25 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 300 meters | 300 meters | 300 meters | 80 km | 300 meters |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Fiber |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 3.5W | 1.5W | 3.8W | 3.5 W | 1.5W |
| Product Name | J4859D QSFP+ Transceiver Module (5 Units) | JL308 10GBASE-SR SFP+ Transceiver | J4858C 10G SFP+ Optical Transceiver | J9283D LR SFP+ Transceiver | JH232A 10G SFP+ Transceiver |
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Transmission Distance | Short-Range | Short-Range | Short-Range | Long-Range | Short-Range |
| Wavelength | 850 nm | 850 nm | 850 nm | 1310 nm | 850 nm |
| Weight | 0.2 lbs | 0.05 lbs | 0.05 lbs | 0.1 lbs | 0.15 lbs |
| Width | 0.7 inches | 0.5 inches | 0.65 inches | 0.8 inches | 0.87 inches |
Questions & Answers
What is the Aruba J4859D (5 Units) 1G SFP LC LX 10km SMF Transceiver kit?
The Aruba J4859D kit contains five 1G SFP LC LX transceivers designed for single-mode fiber links up to 10 km, ideal for high-speed network extensions.
What transmission distance does the Aruba J4859D support?
Each Aruba J4859D transceiver supports a maximum transmission distance of 10 kilometers over single-mode fiber.
Which fiber cable type is required for the J4859D transceiver?
The J4859D transceivers require single-mode fiber (SMF) cabling to achieve their full 10 km reach and optimal signal integrity.
What connector type does the Aruba J4859D use?
Aruba J4859D modules use LC duplex connectors for reliable and compact fiber optic connections.
What wavelength does the J4859D operate at?
The Aruba J4859D SFP modules operate at a nominal wavelength of 1310 nm, providing low-loss transmission over long distances.
Is the Aruba J4859D hot-swappable?
Yes, Aruba J4859D transceivers are hot-swappable, allowing insertion or removal without powering down the network device.
Which data rate does the J4859D support?
The Aruba J4859D supports a data rate of 1.25 Gbps (1G) for Gigabit Ethernet applications.
How many SFP modules are included in the J4859D pack?
The Aruba J4859D SKU includes five individual 1G SFP LC LX transceiver modules in one factory-sealed pack.
Are Aruba J4859D transceivers compatible with third-party switches?
These Aruba-branded modules are compatible with Aruba and most major switch vendors supporting standard 1G SFP ports.
How do I install the Aruba J4859D SFP module?
To install, align the J4859D module with the SFP slot, push until it clicks, then connect LC fiber cables and verify link activity.
What are the operating temperature specifications of the J4859D?
The Aruba J4859D operates reliably in temperatures from 0 °C to 70 °C (32 °F to 158 °F) for standard deployments.
What is the optical power budget of the Aruba J4859D?
The J4859D offers a transmit power range of –9.5 to –3 dBm and a receiver sensitivity of –20 dBm, ensuring a robust link budget over 10 km.
Does the J4859D come with a warranty?
Yes, Aruba provides a one-year limited hardware warranty on all J4859D transceivers against defects and performance failures.
What is Aruba’s return policy for the J4859D?
Unused Aruba J4859D modules may be returned within 30 days of purchase for a full refund under Aruba’s standard return policy.
Can I use the Aruba J4859D for building out long-haul networks?
Absolutely; the Aruba J4859D is optimized for campus and metro networks requiring reliable 10 km single-mode fiber connectivity.
How do I troubleshoot link issues with the Aruba J4859D transceiver?
Verify you’re using single-mode LC fiber, check link-status LEDs on both ends, confirm switch port settings, and update firmware if needed.