3com DSA-3CV1100-02 Manuel D’Utilisation
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
shown in
and
.
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
connected to the inner wire pair of the phone connector shown in
and
. 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.
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
.
P H O N E
L IN E
D C -IN
Inner wire pair
Outer wire Pair