TP-Link Omada 1000BASE-BX WDM Bi-Directional Industrial SFP Module ISM321B-20
The TP-Link Omada 1000BASE-BX WDM Bi-Directional Industrial SFP Module (ISM321B-20) provides reliable Gigabit fiber connectivity over single-mode fiber for distances up to 20,000 meters, ensuring robust network extensions in demanding operational settings.
- Extended Reach: Connects network segments up to 20 km, enabling long-distance fiber links for campus networks or distributed facilities.
- Industrial Durability: Operates reliably in extreme temperatures from -40°C to 85°C, preventing network failures in harsh industrial or outdoor deployments.
- Bi-Directional WDM: Utilizes a single fiber strand for both transmit and receive, reducing cabling infrastructure costs and simplifying deployment.
- Hot-Swappable Design: Allows for module replacement without system downtime, ensuring continuous network operation during maintenance or upgrades.
Product Overview
Product Overview
The TP-Link Omada 1000BASE-BX WDM Bi-Directional Industrial SFP Module (ISM321B-20) delivers 1250 Mbit/s Gigabit Ethernet connectivity over single-mode fiber, utilizing an LC (UPC) connector for efficient data transmission.
Designed for operational continuity, this module supports Digital Diagnostic Monitoring (DDM) for real-time performance insights and offers hot-swappable deployment, ensuring minimal disruption during network adjustments.
- Gigabit Fiber Speed: Provides 1250 Mbit/s data transfer rates, supporting high-bandwidth applications and preventing network bottlenecks for critical business operations.
- 20 km Range: Extends network reach over single-mode fiber up to 20,000 meters, facilitating connectivity across large campuses or between distant buildings.
- WDM Bi-Directional: Transmits and receives data over a single fiber strand, significantly reducing fiber optic cabling requirements and installation costs.
- Industrial Temperature: Operates effectively from -40°C to 85°C, ensuring stable network performance in extreme environments like factories or outdoor enclosures.
- DDM Support: Enables real-time monitoring of module parameters, allowing IT teams to proactively diagnose issues and maintain network health.
This SFP module is an essential component for businesses seeking to build robust, long-distance, and environmentally resilient fiber optic networks.
Technical Specifications
1Performance & Business Impact
2Connectivity & I/O
3Physical & Environmental
4Lifecycle, Warranty & Compliance
Full Specifications
Power1
Performance9
Features2
Weight & dimensions3
Certificates1
Packaging content1
Operational conditions1
Downloads1
What This Solves
Long-Distance Campus Links
For organizations with multiple buildings or a sprawling campus, extending the network backbone over significant distances is crucial. This SFP module provides reliable Gigabit fiber connectivity up to 20 km.
Educational institutions, corporate campuses, government facilities, large industrial sites
Industrial Environment Connectivity
Deploying network infrastructure in factories, warehouses, or outdoor enclosures exposes equipment to extreme temperatures. This module's industrial operating range ensures stable performance where standard transceivers would fail.
Manufacturing operations, logistics and distribution centers, smart city infrastructure, utility companies
Cost-Optimized Fiber Deployment
Reducing cabling infrastructure costs and complexity is a priority for many businesses. The bi-directional WDM technology allows for full Gigabit duplex communication over a single fiber strand.
SMBs expanding their network, mid-market companies optimizing infrastructure, data center interconnects, remote office links
Key Features
Maximum data transfer rate: 1250 Mbit/s
Supports high-bandwidth applications, preventing network bottlenecks and ensuring smooth data flow for business-critical tasks.
Maximum transfer distance: 20000 m
Extends network reach significantly, enabling reliable fiber optic connections across large campuses or between distant buildings.
Minimum operating temperature: -40 °C; Maximum operating temperature: 85 °C
Ensures stable network performance and prevents outages in extreme hot or cold industrial and outdoor deployment environments.
Hot-swap: Yes
Allows for module replacement or upgrades without powering down the host device, minimizing network downtime and operational disruption.
WDM Bi-Directional (1x Gigabit LC Port)
Utilizes a single fiber strand for both transmission and reception, reducing cabling requirements and lowering infrastructure costs.
Compatible With
Networking Equipment
SFP-compatible Gigabit Ethernet switches, routers, media converters from TP-Link Omada, Cisco, Ubiquiti, Netgear, and more
Fiber Optic Cabling
Single-mode fiber optic cables with LC (UPC) connectors, supporting 9/125 µm core/cladding diameters
Network Monitoring Systems
Any NMS that can interpret DDM data from SFP modules for real-time performance and diagnostic insights
Industrial Control Systems
Ethernet-based industrial controllers, sensors, and automation equipment requiring robust fiber connectivity in harsh environments
Frequently Asked Questions
What types of fiber optic cables are compatible with this SFP module?
This module is compatible with single-mode fiber optic cables, specifically those with a 9/125 µm core/cladding diameter and LC (UPC) connectors.
Can this SFP module be used with non-TP-Link switches?
Yes, this SFP module adheres to IEEE 802.3z standards and is generally compatible with any SFP-enabled Gigabit Ethernet switch or media converter that supports 1000BASE-BX transceivers.
What is the benefit of its industrial operating temperature range?
The industrial operating temperature range of -40°C to 85°C allows this module to function reliably in harsh environments such as unheated warehouses, outdoor cabinets, or industrial control rooms, preventing network failures due to extreme temperatures.
Does this module support Digital Diagnostic Monitoring (DDM)?
Yes, the TP-Link ISM321B-20 supports DDM, enabling real-time monitoring of critical parameters like temperature, voltage, and optical power for proactive network management and troubleshooting.
Warranty & Returns
Manufacturer Warranty
Manufacturer warranty applies. Contact Zent Networks for warranty terms specific to this product.
Warranty is provided directly by the manufacturer and covers defects in materials and workmanship under normal use.
Return Policy
Returns subject to manufacturer approval
Hardware returns are governed by the manufacturer's return policy. Some products are non-returnable or subject to restocking fees. Defective items are handled under the manufacturer warranty. Contact Zent Networks before initiating any return.