Chapter 10Configuring BSC InteractiveIntroductionThe FRM supports BSC (binary synchronous communication) Interactive ports, usedto connect IBM 3270 hosts to remoteCUs (control units) (via HPAD-TPAD commu-nication) over frame relay or X.25. IBM's DSP (Display System Protocol) allows ahost-to-TPAD connection across the network.BSC Interactive support includes:l Full-duplex line controll Point-to-point and multipoint operation on BSC Interactive portsl Autocall from BSC Interactive TPAD portl Each BSC Interactive HPAD supports up to 16 remote TPADs simultaneouslyl Each TPAD supports up to 32 CUs per multidrop lineTo run BSC Interactive in an FRM, make sure the following are properly configuredin the database:l Node parameters, which is general configuration that must be done no matterwhich protocols will be run in the node. See Chapter 4.l RLPs that will contain the interface(s) to the user device(s), plus Line InterfaceCard(s) supporting the ports that will be the interfaces. See Chapter 5.l Loaded Protocol(s): BSCI, as well as the transport protocol: frame relay orX.25. See Chapter 5.l Frame relay port(s) and/or X.25 port(s) that will connect to a network or framerelay PVC. See Chapter 7 (frame relay) or Chapter 8 (X.25).l BSC Interactive port(s) (page 10-2) that will connect to the user devices.l Subscriber IDs (page 10-8) to identify the user devices.
