Default Ethernet Settings; Transceiver Slots; Transceiver Installation - ZyXEL Communications ES-3124 User Manual

ES-3124 Series User's Guide
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 Transceiver Slots

These are slots for mini-GBIC (Gigabit Interface Converter) transceivers or 100Mbps SFP
(Small Form-Factor Pluggable) 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.
The ES-3124-4F and ES-3124F also have two mini-GBIC ports for connection to other
switches.
The ES-3124F has 24 100Mbps SFP ports to connect to a computer or a switch.
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 or 100Mbps SFP transceivers.
1 Insert the transceiver into the slot with the exposed section of PCB board facing down.
50 Chapter 3 Hardware Overview