22 Chapter 1 Introducing the Business Communications ManagerN0008587 01Data networking componentsThe data networking components connect the Business Communications Manager system to thelocal area network (LAN) and/or the wide area network (WAN). These components are installed atthe factory.• Modem card (North American systems only) — a V.90 modem that sends and receives datausing the public telephone system.This connection can be used to:— manage the Business Communications Manager system from a different location— provide dialup backup for a WAN card• LAN interface card — a 10/100 BaseT Ethernet network interface card that connects theBusiness Communications Manager system to the local area network.• WAN interface card — a network interface card with a T1 interface and sync port thatconnects the Business Communications Manager system to the wide area network (WAN).The WAN card connects to a T1 PSTN line with an integrated T1 DSU/CSUs (NorthAmerican). The WAN card can also connect to a T1 PSTN line with an X.21 or V.35 interface(Europe, Middle East, Africa (EMEA)).Media Services CardThe Media Services Card (MSC), a PCI card, performs call processing and media processing ofthe voice channels for the Business Communications Manager system, including the VoIP trunksand IP-based telephones. This card also offers connections for auxiliary features, includingexternal, customer-supplied hardware for paging and music-on-hold.Figure 6 shows the location of the MSC on the BCM1000.Figure 6 MSC optional equipment portsMusic on hold inputPage outputPage relayAuxiliary ringerMSC faceplate detailsDS256 jackBCM1000
