VCN Access Point Features 13
and data to the SuperStack II 1100 Switch. The VCN AP also splits
voice and data in the direction from the VCN AC. Data is sent up to 10
Mbps full duplex.
The solution also works with the VCN Services Switch 10 and the
SuperStack II Switch 3300.
■ The user’s Ethernet frames are encapsulated in HDLC frames carried in
VDSL. Voice and data traffic are carried in their respective frequency
ranges in the wire pair that connects the VCN AP to the VCN AC.
Voice traffic, including facsimile and analog modem traffic, are not
modified. Refer to Figure 2
.
Figure 2 Transfer of Ethernet Frames to VDSL frames in VCN System
■
The VCN AP supports 4-wire telephone cable. The additional 2 wires
which exist in every telephone cable will remain available for an
additional extension. In telephone sets that have two RJ-11 jacks, the
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24 Po rt s C on cen tra to r
Data frequency
Existing POTS metallic pair line
Ethernet
VCN AC
PBX
Ethernet switch
Voice frequency
VDSL frame
HDLC frame
Ethernet frame
Ethernet
POTS line
POTS lines
Voice call
Voice calls
VCN AP
Ethernet
frames
Ethernet
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