1000Base-T Ports; Mini-Gbic Slots - ZyXEL Communications XGS-4728F User Manual

Chapter 3 Hardware Overview
This means that if a mini-GBIC port and the corresponding 1000Base-T port are
connected at the same time, the 1000Base-T port will be disabled.

3.1.2 1000Base-T Ports

The Switch has 24 1000Base-T auto-negotiating, auto-crossover Ethernet ports.
In 100/1000 Mbps Gigabit Ethernet, the speed can be 100 Mbps or 1000 Mbps.
The duplex mode can be both half or full duplex at 100 Mbps and full duplex only
at 1000 Mbps.
An auto-negotiating port can detect and adjust to the optimum Ethernet speed
(100/1000 Mbps) 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: Off

3.1.3 Mini-GBIC Slots

These are 24 slots for Small Form-Factor Pluggable (SFP) transceivers. A
transceiver is a single unit that houses a transmitter and a receiver. Use a
transceiver to connect a fiber-optic cable to the Switch. 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.
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.
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XGS-4728F User's Guide