136 CHAPTER 4: CONFIGURING PATH BUILDER S330/S310 MODULES , PORTS , AND APPLICATIONS4 Enter the number corresponding to the class of virtual circuit you want to define.n If you want to create a standard VPC/VCC permanent virtual circuit to connectdata ports, select [1] PVC and follow the instructions under “Adding PVCVirtual Circuits”.n If you want to create a virtual circuit to support video conferencing, select[2] RS366 Template and follow the instructions under “Defining RS366 (Video)Virtual Circuit Templates”.n If you want to create a VCC virtual circuit to connect VCM ports, select[3] VCM VCC and follow the instructions under “Adding Voice CompressionModule VCC Circuits”.n If you want to create a VCM subchannel circuit that bundles multiple DS0s,select [4] VCM Subchannel and follow the instructions under “Adding VCMSubchannel Circuits”.Adding PVC VirtualCircuitsTo configure a VPC/VCC virtual circuit to connect data ports, follow these steps:1 When you are prompted to select the virtual circuit type, as shown earlier inFigure 105, enter 1 to create a PVC circuit.As shown in Figure 106, you are prompted to select a virtual circuit type.Figure 106 Selecting the PVC Virtual CIrcuit Type: VCC or VPC2 Enter the number corresponding to the type of virtual circuit you want toconfigure:VCC (virtual channel connection)—You can use this connection type for circuitbetween non-UNI and UNI cards and between UNI and UNI cards; both the VPIsand the VCIs will be translated.VPC (virtual path connection)—You can use this connection type only for circuitsbetween UNI and UNI cards; only the VPIs will be translated.To operate a circuit as a VP, set the connection type to VPC.A screen appears, listing the PathBuilder S330/S310 modules and ports by slotnumber and prompting you to select a slot for side A, as shown in Figure 107.
