3com DSA-3CV1100-02 User Manual
Installing the VCN Access Concentrator
27
Figure 12 VCN Access Point Punch-down Block Installation without a Patch
Pane
Pane
4 Repeat
through
for up to 24 telephone lines.
The VCN AP and PBX punch-down blocks must each have an RJ-21
connector.
connector.
Installing the VCN
Access
Concentrator
Access
Concentrator
Before installing the VCN AC make sure that:
■
The unit is accessible and can be connected easily.
■
Cabling is away from:
■
Sources of electrical noise such as radios, transmitters and
broadband amplifiers
broadband amplifiers
■
Power lines and fluorescent lighting fixtures
■
Water or moisture cannot enter the case of the unit.
V C N A P
R o om
B as em ent
W ire p air not
co nne cte d
to V C N A P
co nne cte d
to V C N A P
W ire p air
co nne cte d
to V C N A P
P un ch-D ow n B loc ks
P B X
V C N A P p un ch-dow n
blo ck
P B X pu nch -d ow n
blo ck
E xte nsio n 2
E xte nsio n 1
E xt. 1
+ D ata
+ D ata
E xt. 2
Note: If there is only one
extension in the room,
the wires for the second
extension are not used
and not connected to the
PBX punch down block.
extension in the room,
the wires for the second
extension are not used
and not connected to the
PBX punch down block.