ZyXEL Communications Dimension GS-3012, Руководство пользователя, Страница: 41 / 259

GS-3012/GS-3012F User’s Guide
Hardware Connections 3-3
Auto-crossover
All ports are 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/hubs.
3.2.3 Mini GBIC Slots
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 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)
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.
3.
The switch automatically detects the installed transceiver. Check the LEDs to verify that it is functioning
properly.