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Chapter 3 Hardware Overview
GS-4012F/4024 User’s Guide
47
• Flow control: on
3.1.3 SFP Slots
The Switch comes with SFP (Small Form-factor Pluggable) slots for mini-GBIC (Gigabit
Interface Converter) transceivers. A transceiver is a single unit that houses a transmitter and a
receiver. The Switch does not come with transceivers. You must use transceivers that comply
with the SFP transceiver MultiSource Agreement (MSA). See the SFF committee’s INF-8074i
specification Rev 1.0 for details.
SFP transceivers can be standalone interfaces or part of a dual personality interface. Each dual
personality interface has one 1000 Base-T copper RJ-45 port and one Small Form-Factor
Pluggable (SFP) fiber slot for mini-GBIC transceivers, with one port active at a time. The
mini-GBIC ports have priority over the Gigabit ports. This means that if a mini-GBIC port and
the corresponding Gigabit port are connected at the same time, the Gigabit port will be
disabled.
You can change transceivers while the Switch is operating. You can use different transceivers
to connect to Ethernet switches with different types of fiber-optic connectors.
• Type: SFP connection interface
• Connection speed: 1 Gigabit per second (Gbps)
1 To avoid possible eye injury, do NOT look into an operating fiber-optic
module’s connectors.
3.1.3.1 Transceiver Installation
Use the following steps to install a mini-GBIC transceiver (SFP module).
1 Insert the transceiver into the slot with the exposed section of PCB board facing down.
Figure 10 Transceiver Installation Example
2 Press the transceiver firmly until it clicks into place.
3 The Switch automatically detects the installed transceiver. Check the LEDs to verify that
it is functioning properly.