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Chapter 3 Hardware Overview
VES-1616F-3x Series User’s Guide
38
3.1.2 Gigabit Ethernet Ports
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. The speed of the Gigabit
Ethernet/mini-GBIC ports can be 100Mbps or 1000Mbps and the duplex mode can be half
duplex (at 100 Mbps) or full duplex. The ports are auto-negotiating and auto-crossover.
An auto-negotiating port can detect and adjust to the optimum Ethernet speed (10/100/
1000Mpbs) and duplex mode (full duplex or half duplex) of the connected device.
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: on
• Trunking: Disabled
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 Small Form-factor Pluggable
(SFP) Transceiver MultiSource Agreement (MSA). See the SFF committee’s INF-8074i
specification Rev 1.0 for details.
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)
" 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.