Zyxel GS1100-8HP [10/22] Rj 45 auto negotiating ports

Chapter 2 Hardware Description and Connection

GS1100 Series User’s Guide

2.2.1 RJ-45 Auto-negotiating Ports

The 10 Base-T/100 Base-TX/1000 Base-T RJ-45 ports are auto-negotiating and auto-crossover.

An auto-negotiating port can detect and adjust to the optimum Ethernet speed (10/100/1000

Mpbs) 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.

2.2.2 IEEE 802.3az EEE

The Switch supports the IEEE 802.3az EEE (Energy Efficient Ethernet) standard to help reduce

power consumption. This allows the Switch to go into power saving mode and switch off part of

receive and transmit circuitry when it is not transmitting or receiving data through an Ethernet

connection.

An EEE-enabled device initiates Low Power Idle (LPI) signals to negotiate and wake up the remote

device when there is data to be transmitted. To use EEE, both devices should be EEE compliant.

EEE is configured on a per-system basis in the Switch. If one of the networking devices that

connect to the Switch doesn't support EEE, EEE may not work in the Switch to save power.

The EEE feature is enabled by default on the GS1100-16 and GS1100-24. Press in the IEEE

802.3az EEE ON/OFF button on the GS1100-8HP front panel to turn on the EEE feature. Disable it

if the remote side doesn't support it or you don't want the network performance to be impacted due

to the latency from the additional time required for the sleep and wake transition.

2.2.3 Mini-GBIC Slots (GS1100-24 Only)

These are 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 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 or even copper cable connectors.

To avoid possible eye injury, do not look into an operating fiber-optic

module’s connectors.

• Type: SFP connection interface

• Connection speed: 1 Gigabit per second (Gbps)

2.2.3.1 Transceiver Installation

Use the following steps to install a mini-GBIC transceiver (SFP module).

1 Insert the transceiver into the slot with the exposed section of PCB board facing down.

2 Press the transceiver firmly until it clicks into place.