TP-Link ISM321B-20 1000Base-BX Industrial SFP Module
TP-Link ISM321B-20 1000Base-BX Industrial SFP Module
SKU:NWTL-ISM321B-20
The TP-Link ISM321B-20 is a 1000Base-BX industrial SFP module designed for cost-effective single-fibre network deployments. Featuring WDM bi-directional technology, hot-pluggable design, and digital diagnostic monitoring, it delivers reliable connectivity for industrial environments.
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- 36 months Manufacturer Warranty
Product Information
| Brand | TP-LINK |
|---|---|
| Category | Network - Consumer |
| SKU | NWTL-ISM321B-20 |
| Availability | In Stock |
Overview
- The TP-Link ISM321B-20 is an industrial-grade SFP module engineered for demanding network environments. Utilising WDM bi-directional technology, it enables full-duplex communication over a single strand of fibre, significantly reducing infrastructure costs compared to traditional dual-fibre solutions.
Designed for rugged operation, the module maintains performance across an extended temperature range of -40°C to 85°C, making it suitable for industrial facilities, outdoor installations, and temperature-sensitive applications. The hot-pluggable form factor allows technicians to swap modules without powering down equipment, minimising downtime and operational disruption.
Built to the SFP-MSA standard, the ISM321B-20 integrates seamlessly with compatible networking equipment from leading manufacturers. Integrated Digital Diagnostic Monitoring provides real-time insights into signal quality, power levels, and transceiver health, enabling proactive maintenance and rapid troubleshooting.
Specifications
| Transceiver Type | Single-mode SFP LC |
|---|---|
| Data Rate | 1000 Mbps (Gigabit Ethernet) |
| Protocol | 1000Base-BX WDM |
| Technology | WDM bi-directional |
| Fibre Type | Single strand |
| Form Factor | SFP |
| Connector Type | LC |
| Operating Temperature Range | -40°C to 85°C |
| Standard Compliance | SFP-MSA |
| Features | Hot-pluggable, Digital Diagnostic Monitoring (DDM) |
| Warranty | 36 months |
Key Features
Ideal For
FAQs
What does WDM bi-directional technology mean?
WDM (Wavelength Division Multiplexing) bi-directional technology allows simultaneous two-way communication over a single fibre strand. Different wavelengths carry transmit and receive signals, eliminating the need for dual-fibre connections and reducing cabling and equipment costs.
Is the ISM321B-20 hot-pluggable?
Yes, the ISM321B-20 features a hot-pluggable design, allowing you to insert or remove the module without powering down your network equipment, minimising downtime during maintenance or upgrades.
What is Digital Diagnostic Monitoring (DDM)?
DDM enables real-time monitoring of transceiver performance metrics including optical power levels, signal quality, temperature, and voltage. This allows network administrators to identify issues proactively and troubleshoot problems quickly.
What is the operating temperature range?
The ISM321B-20 operates reliably between -40°C and 85°C, making it suitable for industrial environments, outdoor installations, and applications subject to extreme temperature variations.
Is the TP-Link ISM321B-20 compatible with other brands?
Yes, the ISM321B-20 complies with the SFP-MSA (Small Form Pluggable Multi-Source Agreement) standard, ensuring compatibility with SFP-equipped networking devices from most major manufacturers.
What warranty is included?
The ISM321B-20 includes a comprehensive 3-year manufacturer warranty, providing protection and support throughout its operational life.
How does single-fibre operation reduce costs?
By supporting bi-directional communication over one fibre strand instead of two, this module reduces fibre cabling, conduit, and installation labour. It's particularly cost-effective for long-distance industrial deployments.
