Default Ethernet Settings; Sfp Slots; Transceiver Installation - ZyXEL Communications GS1900-8 User Manual

An aut o- negot iat ing port can det ect and adj ust t o t he opt im um Et hernet speed ( 10/ 100/ 1000
Mbps) and duplex m ode ( full duplex or half duplex) of t he connect ed device.
An aut o- crossover ( aut o- MDI / MDI -X) port aut om at ically works wit h a st raight- t hrough or crossover
Et hernet cable.

3.1.1.1 Default Ethernet Settings

The fact ory default negot iat ion set t ings for t he Et hernet port s on t he Swit ch are:
• Speed: Aut o
• Duplex: Aut o
• Flow cont rol: Off

3.1.2 SFP Slots

These are slot s for Sm all Form - Fact or Pluggable ( SFP) t ransceivers. A t ransceiver is a single unit
t hat houses a t ransm it t er and a receiver. Use a t ransceiver t o connect a fiber- opt ic cable t o t he
Swit ch. The Swit ch does not com e wit h t ransceivers. You m ust use t ransceivers t hat com ply wit h
t he Sm all Form - Fact or Pluggable ( SFP) Transceiver Mult iSource Agreem ent ( MSA) . See t he SFF
com m it t ee's I NF- 8074i specificat ion Rev 1.0 for det ails.
You can change t ransceivers while t he Swit ch is operat ing. You can use different t ransceivers t o
connect t o Et hernet swit ches wit h different t ypes of fiber- opt ic connect ors.
• Type: SFP connect ion int erface
• Connect ion speed: 1 Gigabit per second ( Gbps)
To avoid possible eye injury, do not look into an operating fiber-optic
module's connectors.

3.1.2.1 Transceiver Installation

Use t he following st eps t o inst all a t ransceiver.
1 I nsert t he t ransceiver int o t he slot wit h t he exposed sect ion of PCB board facing down.
Figure 18 Transceiver I nst allat ion Exam ple
2
Press t he t ransceiver firm ly unt il it clicks int o place.
Chapter 3 Hardware Overview
GS1900 Series User's Guide
26