The access rate and link distance on the tenant side of the building often change with the leasing situation. The transceiver with an SFP slot decouples the complete machine from the optical port capability, so subsequent rate and wavelength changes do not require the complete machine to be scrapped.

The difference from fixed optical port transceivers is that they can be replaced

The fixed-port optical module is welded in the factory configuration, and the speed and optical path are programmed; the version with an SFP slot has a standard module port on the fuselage, which can be plugged into theSFP Gigabit single mode dual fiber 10KM optical moduleIt is a Gigabit single-mode link. In the short-distance copper port uplink scenario, the power distribution port module can also be changed. The whole machine remains unchanged, the differences are all on the module side. For spare parts management in weak current rooms, it is equivalent to splitting the entire machine inventory and optical port capacity into two accounts.

Which scenarios are worth choosing the slot version?

• Scenarios in which tenants access switch speeds of Gigabit and 10G coexist, and uplink port requirements change.
• Projects that will extend the link distance, such as the first phaseSFP 100M single mode dual fiber 20KM optical module, if you want to change to a longer specification in the future, just change the module.
• There are many centralized links between weak currents and the operation and maintenance party hopes to reduce the number of spare parts models.

Two points to note when matching optical modules

First, the module speed level must match the slot. 100M models often do not recognize Gigabit modules; second, after replacing the module, the opposite end must be checked synchronously, and the single-fiber link wavelength must be in A/B pair. EB-LINK's SFP series has a complete range of ready-made models from 100M to 1000M, which are tested one by one before shipping. Codes can be written for free according to the switch brand, adapting to the rhythm of scattered procurement on the tenant side.

To sum up in one sentence: the fixed-port model is cheap, and the slot version leaves room for changes after many years; for projects with fast turnover of building tenants and frequent renovations, the overall cost of the latter is more controllable.