Gigabit Ethernet Ports; Poe (Xs1930-12Hp) - ZyXEL Communications XS1930-12F User Manual

Table 5 Front Panel Connections (continued)
CONNECTOR
Reset
Restore

3.1.1 Gigabit Ethernet Ports

The Switch has 10GBase-T auto-negotiating, auto-crossover Ethernet ports. In Multi-Gigabit Ethernet, the
speed can be 100M, 1G, 2.5G, 5G, or 10G. The duplex mode can be full duplex only.
An auto-negotiating port can detect and adjust to the optimum Ethernet speed (100M, 1G, 2.5G, 5G,
and 10G) and full duplex mode of the connected device.
An auto-crossover (auto-MDI/MDI-X) port automatically works with a straight-through or crossover
Ethernet cable.
When auto-negotiation is turned on, an Ethernet port negotiates with the peer automatically to
determine the connection speed and duplex mode. If the peer Ethernet port does not support auto-
negotiation or turns off this feature, the Switch determines the connection speed by detecting the signal
on the cable and using half duplex mode. When the Switch's auto-negotiation is turned off, an Ethernet
port uses the pre-configured speed and duplex mode when making a connection, thereby requiring
you to make sure that the settings of the peer Ethernet port are the same in order to connect.
3.1.1.1 Default Ethernet Negotiation Settings
The factory default negotiation settings for the Gigabit ports on the Switch are:
• Speed: Auto
• Duplex: Auto
• Flow control: Off
• Link Aggregation: Disabled
3.1.1.2 Auto-crossover
All ports support auto-crossover, that is auto-MDIX ports (Media Dependent Interface Crossover), so you
may use either a straight-through Ethernet cable or crossover Ethernet cable for all Gigabit port
connections. Auto-crossover ports automatically sense whether they need to function as crossover or
straight ports, so crossover cables can connect both computers and switches or hubs.

3.1.2 PoE (XS1930-12HP)

The Switch supports the IEEE 802.3af Power over Ethernet (PoE), IEEE 802.3at Power over Ethernet (PoE)
plus and IEEE 802.3bt Power over Ethernet (PoE) plus plus standards. The Switch is a Power Sourcing
Equipment (PSE) because it provides a source of power through its Ethernet ports. Each device that
receives power through an Ethernet port is a Powered Device (PD).
Chapter 3 Hardware Panels
DESCRIPTION
Press the RESET button to reboot the Switch without turning the power off. See
page 40 for more information about the LED behavior.
Press the RESTORE button for 3 to 6 seconds to have the Switch automatically reboot and
restore the last-saved custom default file. See
about the LED behavior.
Press the RESTORE button for more than 7 seconds to have the Switch automatically reboot
and restore the factory default file. See
the LED behavior.
XS1930 Series User's Guide
34
Section 3.3 on page 40
Section 3.3 on page 40 for more information about
Section 3.3 on
for more information