ZyXEL Communications GS-2724 - Manual (Page 42)

Chapter 3 Hardware Overview
GS-2724 User’s Guide
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• No parity, 8 data bits, 1 stop bit
• No flow control
Connect the male 9-pin end of the console cable to the console port of the Switch. Connect the
female end to a serial port (COM1, COM2 or other COM port) of your computer.
3.1.2 Gigabit Ethernet Ports
The Switch has 10/100/1000 Mbps auto-negotiating, auto-crossover Gigabit Ethernet ports. In
10/100/1000 Mbps Gigabit Ethernet, the speed can be 10 Mbps, 100 Mbps or 1000 Mbps and
the duplex mode can be half duplex (for 100 Mbps) or full duplex.
An auto-negotiating port can detect and adjust to the optimum Ethernet speed 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
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.