Installing the VCN Access Concentrator 27
Figure12 VCN Access Point Punch-down Block Installation without a Patch
Pane
4Repeat step 1 through step 3 for up to 24 telephone lines.
The VCN AP and PBX punch-down blocks must e ach have an RJ-21
connector.
Installing the VCN 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
■Power lines and fluorescent lighting fixtures
■Water or moisture cannot enter the case of the unit.
VCNAP
Room
Basement
Wire pair not
connected
to VCNA P
Wire pair
connected
to VCNA P
Punch-Down Blocks
PBX
VCNAP punch-down
block
PBX punch-down
block
Extension 2
Extension 1
Ext. 1
+ Data
Ext. 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.