ZyXEL Communications MSC1000G User Manual page 59

2.3.2.1 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.
See Section 33.14.7 on page 1023
2.3.2.2 XFP Slots (MSC1224G only) and SFP Slots
These are slots for XFP transceivers and 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 XFP transceivers that comply with the XFP Multi Source Agreement Group. See the
SFF committee's INF-8077i specification for details.
• Type: XFP connection interface
• Connection speed: 10 Gigabit per second (Gbps)
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 MSC is operating. You can use different transceivers to
connect to Ethernet switches with different types of fiber-optic connectors.
2.3.2.3 SFP+ Slots (MSC1224GB only)
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. Use SFP+ transceivers that comply with the
SFF committee 8431 Specification (SFP+).
• Type: SFP+ connection interface
• Connection speed: 10 Gigabit per second (Gbps)
You can change transceivers while the MSC is operating. You can use different transceivers to
connect to Ethernet switches with different types of fiber-optic connectors.
2.3.2.4 Transceiver Installation
Use the following steps to install a mini GBIC transceiver (SFP module) in a slot.
Note: For slots that are at an angle; do not attempt to straighten it.
Remove the dust cover from the transceiver.
1
For transceivers with a flip-up or flip-down latch, close the latch.
2
Management Switch Card User's Guide
to change the mode of a Gigabit Ethernet port.
Chapter 2 Hardware Connections
59