3Com DSA-3CV1100-02 service manual Punch-Down Block Without a Patch Panel

Preparing the Site for the VCN Access Concentrator 25

Figure 9 VCN Access Point Punch-Down Block Installation with a Patch Panel

E xtension 1

4-w ire cable

E xtension 2

V C N A ccess P oint (V C N A P)

W ire pair
connected
to V C N A P
		R oom
	W ire pair not	B asem ent
	connected
	to V C N A P	E xt. 2
E xt. 1
+ D ata	P unch-D ow n B locks

Ext. 1, Ext. 2

	P B X
V C N AP punch-dow n	P B X punch-dow n
	block
block
24 w ire pairs	24 w ire pairs
	E xt. 1
P atch P anel	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.

The installed patch panel must have 48 wire connectors - two for each port.

Installing the VCN To install the VCN AP punch-down block in the absence of a patch panel, Access Point perform the following steps:

Punch-Down Block

Without a Patch

Panel

1Select the wire pairs according to their position in the RJ-11 telephone connector in the rear of the VCN AP. The two outside wires comprise the