Introduction
The StarTech.com SFP1000ZXST is a 1000BASE-ZX Small Form-factor Pluggable (SFP) optical transceiver designed for Gigabit Ethernet communication over single-mode fibre. Operating at a wavelength of 1550 nm, the module supports transmission distances of up to 80 km using duplex LC fibre connections.
This teardown examines the internal construction of the transceiver, identifies the major electronic and optical components, and investigates how the module implements Gigabit optical communication within the standard SFP form factor.
- Standard: 1000BASE-ZX
- Form factor: SFP
- Wavelength: 1550 nm
- Fibre type: Single-mode
- Maximum distance: 80 km
- Connector type: Duplex LC
What you need
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Verify that the module is a StarTech.com SFP1000ZXST 1000BASE-ZX SFP transceiver before proceeding.
Ask FixBot
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Locate the recessed retaining tabs on each side of the module and carefully lift them using a small flat-blade screwdriver.
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Release the metal retaining pin by pulling the lever of the SFP module so that it clears the casing.
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Flip the SFP module back over and carefully slide back the casing.
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Carefully flip the SFP module back over making sure that the lever mechanism is not lost.
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Make sure you keep it somewhere safe.
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Using a PH00 bit, unscrew the 4.3mm centre retaining screw.
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Make sure to keep it safe.
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Using a flathead bit, gently lever the TOSA/ROSA retaining clip.
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It should come out very easily.
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Make sure not to lose this small part.
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Now we can safely remove the PCB from the casing and take a closer look.
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Make sure not to lose casing.
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ROSA
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TOSA
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MindSpeed M02095G-12 Gigabit Ethernet Laser Driver and Transceiver IC
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Unknown chip most likely power control, optical power monitor conditioning, signal-detect support, or protection
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Unknown chip most likely the SFP module controller/DDM IC
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Unknown chip most likely a temperature compensation transistor
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