Gigabit Ethernet Interfaces - ZyXEL Communications IES4005M User Manual

Chapter 3 Management Cards

3.2.6 Gigabit Ethernet Interfaces

• Interface SFP1 and port 3 are a Gigabit Ethernet port/SFP slot pair.
• Interface SFP2 and port 4 are a Gigabit Ethernet port/SFP slot pair.
The SFP slots have priority over the Gigabit Ethernet (GE) ports. This means that if a SFP
transceiver and the corresponding GE port are connected at the same time, the GE port will be
disabled.
To avoid possible eye injury, do not look into an operating fiber-optic
module's connectors.
The Ethernet ports are auto-negotiating and can detect and adjust to the optimum Ethernet speed
(100/1000 Mbps) and duplex mode (full duplex or half duplex) of the connected device. The
Ethernet ports are also auto-crossover (auto-MDI/MDI-X), they automatically work with a straight-
through or crossover Ethernet cable.
3.2.6.1 Uplink and Subtending
The Gigabit Ethernet SFP slots and ports can function in either subtending or uplink mode. Connect
a port in uplink mode to an backbone Ethernet switch or router. The management switch card
allows traffic between the ports in uplink mode and the DSL ports on the line cards.
Use the subtending mode to daisy-chain other Ethernet switches. With subtending mode, the
management switch card allows traffic between the ports in subtending mode and the ports in
uplink mode. The management switch card does not allow traffic between the ports in subtending
mode and the DSL ports on the line cards.
3.2.6.2 SFP Slots
These are slots for SFP transceivers. A transceiver is a single unit that houses a transmitter and a
receiver. The switch does not come with transceivers.
You must use SFP transceivers that comply with the SFP Transceiver MultiSource Agreement (MSA).
See the SFF committee's INF-8074i specification Rev 1.0 for details.
• Type: SFP connection interface
• Connection speed: 1 Gigabit per second (Gbps)
You can change transceivers while the IES is operating. You can use different transceivers to
connect to Ethernet switches with different types of fiber-optic connectors.
3.2.6.3 Transceiver Installation
Use the following steps to install a mini GBIC transceiver (SFP module) in a slot.
Remove the dust cover from the transceiver.
1
For transceivers with a flip-up or flip-down latch, close the latch.
2
Insert the fiber-optic cables into the transceiver (you may need to remove cable dust covers).
3
Insert the transceiver into the slot with the exposed section of PCB board facing down.
4
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IES4005M User's Guide