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J4859B-C
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- Gigabit-LX-LC Mini-GBIC B Ver. HP Procurve Compatible
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3 Year Extended Warranty
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Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
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If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
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In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
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J4859B-C Overview
Overview of “J4859B-C”: J4859B-C is an SFP+ transceiver module that supports a 10G data rate for Ethernet applications using LC connectors. Designed for long-range communication over single-mode fiber up to 10 km, it features a compact form factor with dimensions optimized for data centers, enterprise networks, and telecom environments.
J4859B-C delivers reliable performance in high-speed data and telecom applications, offering precise power efficiency and robust support for Ethernet protocols. The module’s industry-standard design ensures broad compatibility with leading network equipment providers such as Cisco, Juniper, Huawei, and Arista.
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J4859B-C Specifications
| Product Type | Transceiver |
| Form Factor | SFP+ |
| Data Rate | 10G |
| Connector Type | LC |
| Wavelength | 1310 nm |
| Transmission Distance | Long-Range |
| Fiber Type | Single-mode |
| Max Distance | 10 km |
| Supported Protocols | Ethernet |
| Network Interface | Fiber |
| Power Consumption | 3.5 W |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Cisco / Juniper / Huawei / Arista |
| Product Name | J4859B-C 10G SFP+ Transceiver Module |
| Height | 0.65 inches |
| Width | 0.65 inches |
| Depth | 1.50 inches |
| Weight | 0.10 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista |
| Connector Type | MPO | LC | LC | LC | LC |
| Data Rate | 100G | 100G | 10G | 10G | 1G |
| Depth | 1.10 inches | N/A | N/A | 1.50 inches | 2.70 inches |
| Fiber Type | Multi-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Form Factor | QSFP | QSFP28 | SFP | SFP+ | SFP |
| Height | 0.65 inches | N/A | N/A | 0.65 inches | 0.28 inches |
| Input Voltage | 3.3V | 3.3V | N/A | 3.3V | 3.3V |
| Max Distance | 100 meters | 80 km | 40 km | 10 km | 40 km |
| Network Interface | Ethernet | 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 | 4W | N/A | N/A | 3.5 W | N/A |
| Product Name | QSFP-100G-SR4-T2 | EWDM-OADM4 | CWDM-SFP10G-1590-C | J4859B-C 10G SFP+ Transceiver Module | EX-SFP-GE40KT13R15-C |
| 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 | Long-Range | Long-Range | Long-Range | Long-Range |
| Wavelength | 850nm | 1310 nm | 1590 nm | 1310 nm | 1310 nm |
| Weight | 0.10 lbs | N/A | N/A | 0.10 lbs | 0.1 lbs |
| Width | 0.95 inches | N/A | N/A | 0.65 inches | 0.87 inches |
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Questions & Answers
Q
What is the HP ProCurve compatible Gigabit-LX-LC Mini-GBIC B Ver. (SKU J4859B-C)?
A
The J4859B-C is a Gigabit-LX-LC Mini-GBIC fiber transceiver supporting 1000Base-LX on single-mode fiber up to 10 km, fully compatible with HP ProCurve switches.
Q
Which HP ProCurve switch models support the J4859B-C Mini-GBIC?
A
This Mini-GBIC is validated on HP ProCurve series including 2610, 2810, 2910, 3500yl, 3600, 5400zl and 8200 chassis.
Q
What technical specifications define the J4859B-C Mini-GBIC?
A
It is an LC duplex 1000Base-LX SFP module, single-mode fiber, 1310 nm wavelength, up to 10 km reach, operating temperature 0–70 °C, power ≤0.8 W.
Q
How do I install the J4859B-C Mini-GBIC in my HP switch?
A
Power on the switch, align and insert the module into an empty SFP port until it clicks, then connect your LC single-mode fiber cable.
Q
Is the J4859B-C Mini-GBIC hot-swappable?
A
Yes. You can insert or remove the transceiver without powering down the switch, provided the network topology supports hot-swap.
Q
What type of fiber cable do I need for this Mini-GBIC?
A
Use single-mode fiber cable terminated with LC connectors for optimal performance at 1310 nm over distances up to 10 km.
Q
Can I use the J4859B-C Mini-GBIC with non-HP switches?
A
While optimized for HP ProCurve, it may function on other vendors’ SFP-compatible switches, though interoperability isn’t guaranteed.
Q
How can I verify compatibility with my network equipment?
A
Consult your switch’s SFP compatibility matrix or HP ProCurve documentation to confirm support for the J4859B-C module.
Q
What warranty covers the J4859B-C Mini-GBIC?
A
This Mini-GBIC is backed by a one-year limited warranty against manufacturing defects.
Q
How does 1000Base-LX differ from 1000Base-SX?
A
1000Base-LX uses a 1310 nm laser for up to 10 km on single-mode fiber, while 1000Base-SX uses 850 nm on multimode fiber for up to 550 m.
Q
What are the recommended operating temperatures for the J4859B-C?
A
The module operates reliably between 0 °C and 70 °C (32 °F to 158 °F).
Q
How do I check link status after installation?
A
Verify the Link/Act LED on the switch port turns solid or blinks with traffic, indicating a successful fiber connection.
Q
Can I deploy this Mini-GBIC in a CWDM or DWDM network?
A
No. The J4859B-C is designed for standard 1000Base-LX and is not compatible with CWDM or DWDM wavelength grids.
Q
What is the typical power consumption of this transceiver?
A
The J4859B-C consumes ≤0.8 W during normal operation.
Q
How many J4859B-C modules can I install in my switch?
A
You can install up to as many modules as available SFP slots permit, typically up to 24 in fixed-port switches or as defined by chassis capacity.
Q
How can I troubleshoot connectivity issues with the J4859B-C?
A
Check fiber polarity and cleanliness, ensure matched wavelength modules, inspect switch logs for errors, and confirm the SFP port configuration.
