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- Name:
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DGE-891/B
- Description:
- D-Link 1 port 10/100/1000Base-T to 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, can be used alone Or with DMC-1100
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3 Year Extended Warranty
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DGE-891/B Overview
DGE-891/B is a QSFP transceiver engineered for high-speed data communications. It supports a 100G data rate using MPO connectors and is optimized for long-range applications with single-mode fiber. The module adheres to industry standards, supporting both Ethernet and Fibre Channel protocols, and offers a compact form factor ideal for data centers, enterprise networks, and telecom infrastructures.
Designed with performance and reliability in mind, the DGE-891/B features precise physical dimensions for seamless integration into modern network systems. Its robust build and efficient power consumption make it a dependable choice for network upgrades and critical communication environments where high throughput and extended reach are essential.
What is the price of DGE-891/B?
Pricing for DGE-891/B is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for DGE-891/B.
Explore more options from Transceivers or explore other D-Link products.
DGE-891/B Specifications
| Product Type | Transceiver |
| Form Factor | QSFP |
| Data Rate | 100G |
| Connector Type | MPO |
| Wavelength | 1310nm |
| Transmission Distance | Long-Range |
| Fiber Type | Single-mode |
| Max Distance | 80 km |
| Supported Protocols | Ethernet / Fibre Channel |
| Network Interface | Fiber |
| Power Consumption | 7.0W |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Cisco / Juniper / Huawei / Arista |
| Product Name | DGE-891/B QSFP High-Speed Transceiver |
| Height | 0.95 inches |
| Width | 0.90 inches |
| Depth | 1.50 inches |
| Weight | 0.20 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 / Juniper / Huawei / Arista | N/A | Cisco, Juniper, Huawei, Arista |
| Connector Type | MPO | LC | LC | LC | LC |
| Data Rate | 100G | 100G | 10G | 10G | 10G |
| Depth | 1.50 inches | N/A | 1.65 inches | N/A | 1.50 inches |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Multi-mode |
| Form Factor | QSFP | CFP2 | SFP | SFP+ | SFP+ |
| Height | 0.95 inches | N/A | 0.66 inches | N/A | 0.50 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 80 km | 1km | 80 km | 40 km | 300 meters |
| Network Interface | Fiber | Ethernet | 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 | 7.0W | N/A | 1.5 W | N/A | 2.0W |
| Product Name | DGE-891/B QSFP High-Speed Transceiver | ONS-CFP2-WDM-1KL= | DWDM-SFP10G-3504-ER-C | EX-SFP-10GE-ERD4532-C | AA1419049-C 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 / Fibre Channel | Ethernet, Fibre Channel | Ethernet | Ethernet | Ethernet |
| Transmission Distance | Long-Range | Short-Range | Extended-Range | Extended-Range | Short-Range |
| Wavelength | 1310nm | N/A | 1550 nm | 1550nm | 850 nm |
| Weight | 0.20 lbs | N/A | 0.09 lbs | N/A | 0.08 lbs |
| Width | 0.90 inches | N/A | 0.66 inches | N/A | 0.25 inches |
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Questions & Answers
Q
What is the DGE-891/B Gigabit Ethernet photoelectric converter?
A
The DGE-891/B is a D-Link media converter that converts a 10/100/1000Base-T copper Ethernet link to a 1000Base-LX single-mode single-fiber link with SC interface.
Q
Which Ethernet speeds does the DGE-891/B support?
A
The DGE-891/B supports 10Mbps, 100Mbps and 1000Mbps on the copper 10/100/1000Base-T port and 1000Mbps on the 1000Base-LX fiber port.
Q
What type of fiber does the DGE-891/B use?
A
It uses single-mode single-fiber (SMF) technology with an SC optical interface for 1000Base-LX transmission.
Q
What is the maximum transmission distance of the DGE-891/B?
A
The DGE-891/B supports single-fiber transmission distances up to 20 km.
Q
What are the TX/RX wavelengths of the DGE-891/B?
A
The DGE-891/B transmits at 1550 nm and receives at 1310 nm for 1000Base-LX single-fiber links.
Q
Does the DGE-891/B require a pair of converters?
A
Yes, single-fiber operation requires two DGE-891/B units—one for TX:1550/RX:1310 nm and one for TX:1310/RX:1550 nm.
Q
Can the DGE-891/B work alone on a duplex fiber link?
A
Yes, you can use a single DGE-891/B on a duplex single-mode fiber with separate transmit and receive fibers.
Q
Is the DGE-891/B compatible with the DMC-1100 converter?
A
Yes, the DGE-891/B can interoperate with the DMC-1100 for mixed media environments, provided the wavelength and fiber type match.
Q
What power options does the DGE-891/B support?
A
The DGE-891/B accepts a 5 VDC external power adapter and supports integration into D-Link chassis with compatible power modules.
Q
How do I install the DGE-891/B media converter?
A
Simply connect the copper Ethernet cable to the 10/100/1000Base-T port, connect the SC fiber cable, plug in the 5 VDC power adapter, and verify LED status.
Q
What LED indicators are available on the DGE-891/B?
A
The DGE-891/B features Power, Link/Act for both copper and fiber ports, and 1000Mbps indicator LEDs for link speed status.
Q
What operating temperature range does the DGE-891/B support?
A
The DGE-891/B operates between 0 °C and 50 °C (32 °F to 122 °F) and stores between –10 °C and 70 °C (14 °F to 158 °F).
Q
What applications is the DGE-891/B best suited for?
A
The DGE-891/B is ideal for extending Gigabit Ethernet networks over long distances, campus backbones, surveillance systems and industrial environments.
Q
Does the DGE-891/B support auto-negotiation and flow control?
A
Yes, the DGE-891/B supports auto-negotiation on the copper port and IEEE 802.3x flow control for reliable data transmission.
Q
What are the dimensions and weight of the DGE-891/B?
A
The DGE-891/B measures 95 × 70 × 26 mm and weighs approximately 170 g, making it compact for desktop or rack-mount chassis installation.
Q
What warranty and support does D-Link provide for the DGE-891/B?
A
D-Link offers a limited lifetime warranty on the DGE-891/B along with 24/7 technical support and online resources for configuration and troubleshooting.
