26 C
HAPTER
2: I
NSTALLING
THE
VCN A
CCESS
C
ONCENTRATOR
outer wire pair and the two inside wires comprise the inner wire pair, as
shown in Figure 10
and Figure 11.
Where there is only one telephone line in a room, the two wires are
connected to the inner wire pair of the phone connector shown in
Figure 10
and Figure 11. The outer wire pair of the phone connector is
not used.
■
The inner wire pair carries both voice and digital date.
■
The outer wire pair only carries voice.
2
Disconnect the punch-down Krone connector for the inner wire pair from
the PBX punch-down block.
The outer wire pair remains connected to the PBX punch-down block
since it will not carry data.
Figure 10
VCN Access Point Rear Panel
Figure 11
The Four Wires of the Telephone Cable
3
Connect the punch-down Krone connector of the inner wire pair to the
added VCN AP punch-down block. Refer to Figure 12
.
PHONE
LINE
DC-IN
Inner wire pair
Outer wire Pair
