Installing the VCN Access Concentrator 33

If your switch is the SuperStack II 1100 or 3300, connect to the front panel ports. If your switch is not the SuperStack II 1100 or 3300, follow the procedures for your switch.

Note on Insertion of Note the following:

Line Cards in the VCN

Access Concentrator

The card in VCN AC slot 1 provides central management and is different from the remaining cards. This card has a factory installed MAC address and must not be inserted in any slot other than slot 1.

Connecting Cables to This section describes how to connect the rack without a patch panel. the Rack Without a The VCN AC connects directly to the VCN AP and PBX punch-down

Patch Panel blocks at the back with RJ-21 connectors.

Back Panel Connections

Perform the following steps to connect the VCN AC to the punch-down blocks.

1Connect one RJ-21 flat cable to the VCN AP punch-down block through the RJ-21 connector labeled “FROM VCN AP”.

2Connect the other RJ-21 flat cable to the PBX punch-down block through the RJ-21 connector labeled “TO PBX”.

To connect the back panel of the VCN AC, use the 2 flat cables with RJ-21 connectors supplied with the VCN AC.

The pin assignments of the two RJ-21 connectors at the back of the VCN AC must match the pin assignments of the RJ-21 connectors of the two punch-down blocks.

To correctly align the RJ-21 connectors on the VCN AC and the punch-down blocks, see Table 6.

Table 6 Pin Assignment for the RJ-21 Connector

VCN AC Port No.

First Pin

Second Pin

 

 

 

1

1

26

 

 

 

2

2

27

 

 

 

3

3

28

4

4

29

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Image 33
3Com DSA-3CV1100-02 Line Cards in the VCN Access Concentrator, Patch Panel blocks at the back with RJ-21 connectors
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