ZyXEL Communications XGS-4526 User Manual

Page of 491
 Chapter 3 Hardware Overview
XGS-4526/4528F/4728F User’s Guide
39
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 4 or 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. 
3.1.3.1  Transceiver Installation   
Use the following steps to install a mini GBIC transceiver (SFP or XFP module). 
1
Insert the transceiver into the slot with the exposed section of PCB board facing 
down. 
Figure 11   Transceiver Installation Example 
2
Press the transceiver firmly until it clicks into place.