ZyXEL Communications IES-1248-51 Guía de usuario Pagina 37

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Chapter 1 Introducing the IES-1248-51V
IES-1248-51V User’s Guide
37
optical splitter (OSP) (if there are multiple buildings sharing the same fiber link)
to the OLT at your ISP can be up to 20 km.
Figure 2 MDU Application (Using Fiber for Uplink Connection)
1.3 System Description
Two Telco-50 Connectors
There are two Telco-50 connectors for ADSL and analog phone connections.
1000/100 Mbps Ethernet Ports
The IES-1248-51V has two 1000/100Mbps auto-sensing Ethernet ports.
They allow you to:
Connect the IES-1248-51V to a second-level switch
Daisy-chain other IES-1248-51V
Two Slots for Mini GBIC Modules
The mini GBIC (Gigabit Interface Converter) module transceivers allow flexibility
in connection options. You can use mini GBIC transceivers for fiber connections to
backbone Ethernet switches.
Internet
PSTN
TG
Building B
Building A
MGC/SSW
R
OLT
IES
IES
SP
CPE
Optical
CPE
MDF
SP
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