Front Panel; Dual Personality Interfaces - ZyXEL Communications ZyWall USG 2000 User Manual

Chapter 1 Introducing the ZyWALL

1.2 Front Panel

Figure 1 ZyWALL Front Panel

1.2.1 Dual Personality Interfaces

The ZyWALL's dual personality interfaces are 1000Base-T/mini-GBIC combo ports.
For each interface you can connect either to the 1000Base-T port or the mini-GBIC
port. The mini-GBIC ports have priority over the 1000Base-T ports. 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.
1.2.1.1 1000Base-T Ports
The 1000Base-T auto-negotiating, auto-crossover Ethernet ports support 100/
1000 Mbps Gigabit Ethernet so 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.
Default Ethernet Settings
The factory default negotiation settings for the Ethernet ports on the ZyWALL are:
• Speed: Auto
• Duplex: Auto
• Flow control: On (you cannot configure the flow control setting, but the ZyWALL
can negotiate with the peer and turn it off if needed)
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ZyWALL USG 2000 User's Guide