Chapter 3 Hardware Overview
ES-2024 Series User’s Guide
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An auto-crossover (auto-MDI/MDI-X) port automatically works with a straight-
through or crossover Ethernet cable.
3.1.2.1 Default Ethernet Settings
The factory default negotiation settings for the Ethernet ports on the Switch are:
• Speed: Auto
•Duplex: Auto
• Flow control: off
3.1.3 Mini-GBIC Slots
These are 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.
There are two pairs of Gigabit Ethernet/mini-GBIC ports. 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)
Note: 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).
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