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DGE-894/B
- Description:
- D-Link 4-port 10/100/1000Base-T to 1-port 1000Base-LX Gigabit Ethernet photoelectric converter, single-mode single fiber, TX:1550/RX:1310nm, maximum transmission 20km, SC interface, need to be used in pairs, also Can be used in pairs with DGE-891/A
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DGE-894/B Overview
DGE-894/B is a QSFP transceiver engineered to deliver 100G data rate performance for high-speed Ethernet networks. Designed with LC connectors for optimal fiber coupling, this module supports short-range transmission over multi-mode fiber and is ideal for data center, enterprise, and telecom applications.
Built in a compact form factor, the DGE-894/B ensures reliable operation with precise physical dimensions, making it suitable for dense deployments. It adheres to rigorous standards with compatibility across leading networking platforms and is optimized for high-performance network interfaces in environments demanding efficient, high-speed data connectivity.
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Explore more options from Transceivers or explore other D-Link products.
DGE-894/B Specifications
| Product Type | Transceiver |
| Form Factor | QSFP |
| Data Rate | 100G |
| Connector Type | LC |
| Wavelength | 1310 nm |
| Transmission Distance | Short-Range |
| Fiber Type | Multi-mode |
| Max Distance | 150 meters |
| Supported Protocols | Ethernet |
| Network Interface | Fiber |
| Power Consumption | 4.5W |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Cisco / Juniper / Huawei / Arista |
| Product Name | DGE-894/B QSFP 100G Short Range Transceiver |
| Height | 0.35 inches |
| Width | 0.82 inches |
| Depth | 1.30 inches |
| Weight | 0.15 lbs |
DGE-894/B Use Case
Campus Backbone Fiber Extension with DGE-894/B Pairs
Scenario: A multi-building university campus requires a high-capacity backbone to connect its administrative building and research labs over a 15 km span. Two DGE-894/B 4-port 10/100/1000Base-T to 1-port 1000Base-LX converters are deployed in pairs on single-mode fiber (TX:1550/RX:1310 nm, SC interface), seamlessly bridging campus switches. They can interoperate with existing DGE-891/A units for phased expansion. Outcome: Delivers uninterrupted Gigabit throughput, low-latency VoIP and e-learning services, reduces media-conversion points by 60 %, and cuts operational overhead through centralized fiber management.
Industrial Automation Plant Gigabit Link over 10 km Fiber
Scenario: A petrochemical processing facility must isolate control-room SCADA networks from field-level Ethernet devices across a 10 km single-mode run. A pair of DGE-894/B converters provides four 10/100/1000Base-T ports for PLCs and sensors, uplinking via 1000Base-LX SC fiber. Compatibility with DGE-891/A enables mixed-vendor rollouts during maintenance windows. Outcome: Ensures EMI-immune, real-time data exchange with sub-millisecond latency, enhances process reliability, and lowers unplanned downtime by 30 %, while simplifying network diagnostics.
Citywide Remote Surveillance over 20 km Single-Mode Fiber
Scenario: A municipal security department deploys HD IP cameras in outlying districts up to 20 km from its central operations center. Paired DGE-894/B converters (TX:1550/RX:1310 nm, SC interface) aggregate camera uplinks onto a single fiber strand. They integrate seamlessly with DGE-891/A endpoints in legacy installations. Outcome: Provides resilient, high-bandwidth video transport with minimal signal loss, accelerates incident response through real-time monitoring, and scales to hundreds of cameras without adding fiber cores.
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 / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Connector Type | LC | LC | LC | SC | LC |
| Data Rate | 10G | 10G | 10G | 1G | 100G |
| Depth | 0.5 inches | 0.9 inches | 0.87 inches | 1.70 inches | 1.30 inches |
| Fiber Type | Single-mode | Single-mode | Multi-mode | Multi-mode | Multi-mode |
| Form Factor | SFP | SFP | SFP+ | SFP | QSFP |
| Height | 1.0 inches | 0.7 inches | 0.13 inches | 0.45 inches | 0.35 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 80 km | 10 km | 300 meters | 300 meters | 150 meters |
| Network Interface | Fiber | Fiber | Fiber | Ethernet | 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 | 3.5W | 2.5W | 3.5W | 4.5W |
| Product Name | DFE-861/B Optical Transceiver Module | DFE-851 10G SFP Transceiver | DMC-515SC 10GBASE-SR SFP+ Transceiver | DMC-300SC Digital Media Converter | DGE-894/B QSFP 100G Short Range 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, Fibre Channel | Ethernet | Ethernet | Ethernet | Ethernet |
| Transmission Distance | Long-Range | Short-Range | Short-Range | Short-Range | Short-Range |
| Wavelength | 1310 nm | 1310 nm | 850 nm | 850nm | 1310 nm |
| Weight | 0.2 lbs | 0.1 lbs | 0.15 lbs | 0.10 lbs | 0.15 lbs |
| Width | 2.0 inches | 0.5 inches | 0.59 inches | 1.20 inches | 0.82 inches |
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Questions & Answers
Q
What is the DGE-894/B Gigabit Ethernet photoelectric converter?
A
The DGE-894/B is a D-Link 4-port 10/100/1000Base-T to 1-port 1000Base-LX Gigabit Ethernet photoelectric converter designed for single-mode fiber applications.
Q
What fiber interface and mode does the DGE-894/B support?
A
The DGE-894/B supports single-mode single fiber via an SC simplex interface for 1000Base-LX transmission.
Q
What is the maximum transmission distance of the DGE-894/B?
A
The DGE-894/B delivers reliable data transmission over single-mode fiber up to 20 kilometers.
Q
What are the TX and RX wavelengths of the DGE-894/B?
A
The converter transmits at 1550 nm and receives at 1310 nm to optimize long-distance fiber performance.
Q
How many copper and fiber ports does the DGE-894/B provide?
A
It features four 10/100/1000Base-T RJ45 copper ports and one 1000Base-LX SC fiber port.
Q
Can I use a single DGE-894/B unit standalone?
A
No. The DGE-894/B must be deployed in pairs to establish a full fiber link between sites.
Q
Is the DGE-894/B compatible with the DGE-891/A model?
A
Yes. You can pair a DGE-894/B with a DGE-891/A converter to extend your network over single-mode fiber.
Q
What are the typical applications for the DGE-894/B?
A
Ideal uses include campus backbone connections, CCTV transmission, industrial networking, and remote LAN extension.
Q
Is the DGE-894/B plug-and-play?
A
Yes. It requires no configuration—simply connect the fiber and copper ports, power on, and begin transmitting.
Q
Does the DGE-894/B support auto-negotiation and auto-MDI/MDIX?
A
Yes. All RJ45 ports feature auto-negotiation and auto-MDI/MDIX for seamless connection to network devices.
Q
Which IEEE standards does the DGE-894/B comply with?
A
The DGE-894/B meets IEEE 802.3, IEEE 802.3u, and IEEE 802.3z standards for Ethernet and Gigabit Ethernet.
Q
What power supply does the DGE-894/B require?
A
The converter uses the supplied external DC 5 V power adapter for reliable, low-power operation.
Q
What are the benefits of using the DGE-894/B photoelectric converter?
A
It extends network reach up to 20 km, eliminates electromagnetic interference, and secures data transmission over fiber.
Q
How do I pair two DGE-894/B converters?
A
Connect the SC fiber port TX of one unit to the RX of the other, link copper ports to switches, then apply power to both units.
Q
How can I verify a successful fiber link with the DGE-894/B?
A
Confirm that the fiber and copper link LEDs on both units are lit green, indicating active and error-free connections.
Q
Can I mix DGE-894/B and DGE-891/A in the same network?
A
Yes. The DGE-894/B and DGE-891/A are interoperable and can be used in pairs to extend single-mode fiber links.
