IMC Networks IE-iMcV-VDSL2-LANextender, Инструкции по эксплуатации

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LINK Quality
Link Quality is defined by 4 values: 8,4,2,1. The four green LEDs form a binary code
indicating the MAX bandwidth the VDSL line can support. The appropriate LED will
light once the line quality is dynamically detected. This represents the maximum
Downstream data rate (Kbps) the line can support based upon line noise and line
length. The Upstream rate will be less based on the Base Plan used.
Forcing Duplex Mode
The DATA port can be manually configured on the IE-iMcV-VDSL2-LANextender
module for Half- or Full-Duplex operation. Before manually setting the duplex
mode, disable Auto Negotiation (Set DIP Switch #5 to OFF).
•
Full-Duplex for the DATA port is configured by setting DIP Switch #8 to the OFF
position (default).
•
Half-Duplex for the DATA port is configured by setting DIP Switch #8 to the ON
position.
Forcing the Data Port Speed
The DATA port can be manually configured on IE-iMcV-VDSL2-LANextender module
for 10 Mbps or 100 Mbps operation. Before manually setting the speed, disable Auto
Negotiation (Set DIP Switch #5 to the OFF position.)
•
10 Mbps for the DATA port is configured by setting DIP Switch #9 to the OFF
position (default).
•
Configure the DATA port for 100 Mbps operation by setting DIP Switch #9 to
the ON position.
Flow Control
Flow Control is used as back pressure on the 10/100BaseT DATA interface to avoid
dropping packets during VDSL link congestion. Full-Duplex Flow Control will be
advertised only when the module is set to Full-Duplex Mode. For Full-Duplex Flow
Control to operate, the link partner (connected devices) must also support Flow
Control. Half-Duplex Flow Control does not advertise but provides a hardware based
backpressure on the Ethernet line to limit traffic.
Flow control should be considered whenever the VDSL line provides less bandwidth
than the DATA port. If the Ethernet line is attempting to send more data than the
VDSL2 line can support, the Overflow (OVF) LED will come ON indicating frames are
being discarded due to congestion.