Juniper Networks SFP-GE20KT13R15 Compatible 1G SFP Transceiver Module
The SFP-GE20KT13R15 compatible module serves equipment requiring a 1G SFP interface with 1310nm-TX/1550nm-RX optics and a 20km rating. Connection is through Simplex LC/UPC. Product data, application guidance and factory verification are presented together to support field technicians install, maintain and identify the exact compatible module.
OEM Part Number: SFP-GE20KT13R15HT Part Number: SFP-1G35-BX20
Product Highlights
- Compatible alternative to Juniper Networks SFP-GE20KT13R15
- 1G connectivity at 1.25Gbps
- Optical wavelength: 1310nm-TX/1550nm-RX
- Specified reach: 20km
- Simplex LC/UPC / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Juniper Networks Compatible | SFP-GE20KT13R15 |
|---|---|
| Manufacturer | HT |
| HT Part Number | SFP-1G35-BX20 |
| Form Factor | SFP |
| Max. Data Rate | 1.25Gbps |
| Wavelength | 1310nm-TX/1550nm-RX |
| Max. Cable Distance | 20km |
| Connector | Simplex LC/UPC |
| Media | SMF |
| Transmitter Type | DFB BiDi |
| Receiver Type | PIN |
| TX Power | -9~-3dBm |
| Minimum Receiver Power | <-20dBm |
| Power Budget | 11dB |
| Receiver Overload | -3dBm |
| Max. Power Consumption | 1W |
| Extinction Ratio | 9dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Bit Error Ratio (BER) | 1E-12 |
| Protocols | Fast Ethernet, Gigabit Fibre Channel, MSA Compliant |
Field Installation and Maintenance
Inspect the connector and patch lead before installation, then support the fiber without pulling on the module housing. Release the latch properly during maintenance and keep dust protection on unused interfaces. If a module is removed for later use, retain its part-number label and record its original port. For this model, the principal parameters are data rate 1.25Gbps, wavelength 1310nm-TX/1550nm-RX, rated reach 20km.
Applications and Optical Link Design
This BiDi interface is useful where only one fiber strand is available between two sites or racks. It must be paired with the complementary wavelength direction: one end transmits on the wavelength that the other end receives. Verify the paired part number, connector polish and fiber plant before installation, and measure link loss against the specified optical budget.
Before deployment, check the host port type, supported data rate and firmware requirements. The 1G interface configuration must match the remote equipment; sharing a SFP housing alone does not make two transceiver types interoperable.
BiDi operation saves a fiber strand but makes wavelength orientation critical. Record the part installed at each end and check its paired receive wavelength. The 20km rating still depends on total channel loss, including connectors and splices.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -9~-3dBm; the stated optical power budget is 11dB. Digital diagnostics make later maintenance easier when baseline values are captured at installation. Save the initial readings with the port and OEM reference, then investigate meaningful changes rather than reacting to a single transient value. Diagnostic support depends on the host as well as the module, so unavailable fields should be confirmed with the platform documentation. Diagnostic monitoring is listed as Supported. Before every insertion, keep dust caps in place until the patch lead is ready, avoid touching the optical end face and use an appropriate inspection and cleaning procedure. Do not look into an active optical interface.
Quality Assurance and Packaging
Quality control covers the optical or electrical interface, host identification and operating link. The verified unit is then individually protected and cartoned. Customer references, rack groups and project packing lists can be added for volume orders.
Juniper Networks Compatibility and Factory Testing
The module is checked for host recognition as SFP-GE20KT13R15, link establishment and diagnostic reporting. Physical cage fit alone is not treated as evidence of compatibility. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
Frequently Asked Questions
Is this an original Juniper Networks transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies SFP-GE20KT13R15, not an original Juniper Networks-branded module.
Which fiber and connector are required?
Use Simplex LC/UPC with SMF. The specified maximum reach is 20km, subject to fiber quality and total link loss.
Can it be mixed with another wavelength or reach version?
Only when the two ends share the same optical standard, wavelength plan and supported data rate. Check the exact part numbers and link budget rather than relying only on the module form factor.
Ordering Information
When ordering, specify SFP-GE20KT13R15, SFP-1G35-BX20, quantity and intended host platform. Project labels can repeat these details for receiving and asset records. Neutral labels, customer packaging and project-specific compatibility review are available on request.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, with production lead times confirmed for larger quantities. International courier, air freight and sea freight are available; customer courier accounts and nominated forwarders are accepted.
